Add motion service to itgui

README.md

@@ -15,7 +15,7 @@
 - Notification transliteration
 - Call Notifications (ModemManager)
 - Music control
-- Get info from watch (HRM, Battery level, Firmware version)
+- Get info from watch (HRM, Battery level, Firmware version, Motion)
 - Set current time
 - Control socket
 - Firmware upgrades
@@ -29,7 +29,7 @@ This daemon creates a UNIX socket at `/tmp/itd/socket`. It allows you to directl
 The socket accepts JSON requests. For example, sending a notification looks like this:
 
 ```json
-{"type": "notify", "data": {"title": "title1", "body": "body1"}}
+{"type": 5, "data": {"title": "title1", "body": "body1"}}
 ```
 
 It will return a JSON response. A response can have 3 fields: `error`, `msg`, and `value`. Error is a boolean that signals whether an error was returned. If error is true, the msg field will contain the error. Value can contain any data and depends on what the request was.
@@ -83,10 +83,10 @@ This is the `itctl` usage screen:
 Control the itd daemon for InfiniTime smartwatches
 
 Usage:
+  itctl [flags]
   itctl [command]
 
 Available Commands:
-  completion  generate the autocompletion script for the specified shell
   firmware    Manage InfiniTime firmware
   get         Get information from InfiniTime
   help        Help about any command
@@ -94,7 +94,8 @@ Available Commands:
   set         Set information on InfiniTime
 
 Flags:
-  -h, --help   help for itctl
+  -h, --help                 help for itctl
+  -s, --socket-path string   Path to itd socket
 
 Use "itctl [command] --help" for more information about a command.
 ```

api/client.go

@@ -0,0 +1,133 @@
+package api
+
+import (
+	"bufio"
+	"encoding/json"
+	"errors"
+	"net"
+
+	"github.com/mitchellh/mapstructure"
+	"go.arsenm.dev/infinitime"
+	"go.arsenm.dev/itd/internal/types"
+)
+
+// Default socket address
+const DefaultAddr = "/tmp/itd/socket"
+
+// Client is the socket API client
+type Client struct {
+	conn          net.Conn
+	respCh        chan types.Response
+	heartRateCh   chan types.Response
+	battLevelCh   chan types.Response
+	stepCountCh   chan types.Response
+	motionCh      chan types.Response
+	dfuProgressCh chan types.Response
+}
+
+// New creates a new client and sets it up
+func New(addr string) (*Client, error) {
+	conn, err := net.Dial("unix", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	out := &Client{
+		conn:   conn,
+		respCh: make(chan types.Response, 5),
+	}
+
+	go func() {
+		scanner := bufio.NewScanner(conn)
+		for scanner.Scan() {
+			var res types.Response
+			err = json.Unmarshal(scanner.Bytes(), &res)
+			if err != nil {
+				continue
+			}
+			out.handleResp(res)
+		}
+	}()
+	return out, err
+}
+
+func (c *Client) Close() error {
+	err := c.conn.Close()
+	if err != nil {
+		return err
+	}
+	close(c.respCh)
+	return nil
+}
+
+// request sends a request to itd and waits for and returns the response
+func (c *Client) request(req types.Request) (types.Response, error) {
+	// Encode request into connection
+	err := json.NewEncoder(c.conn).Encode(req)
+	if err != nil {
+		return types.Response{}, err
+	}
+
+	res := <-c.respCh
+
+	if res.Error {
+		return res, errors.New(res.Message)
+	}
+
+	return res, nil
+}
+
+// requestNoRes sends a request to itd and does not wait for the response
+func (c *Client) requestNoRes(req types.Request) error {
+	// Encode request into connection
+	err := json.NewEncoder(c.conn).Encode(req)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// handleResp handles the received response as needed
+func (c *Client) handleResp(res types.Response) error {
+	switch res.Type {
+	case types.ReqTypeWatchHeartRate:
+		c.heartRateCh <- res
+	case types.ReqTypeWatchBattLevel:
+		c.battLevelCh <- res
+	case types.ReqTypeWatchStepCount:
+		c.stepCountCh <- res
+	case types.ReqTypeWatchMotion:
+		c.motionCh <- res
+	case types.ReqTypeFwUpgrade:
+		c.dfuProgressCh <- res
+	default:
+		c.respCh <- res
+	}
+	return nil
+}
+
+func decodeUint8(val interface{}) uint8 {
+	return uint8(val.(float64))
+}
+
+func decodeUint32(val interface{}) uint32 {
+	return uint32(val.(float64))
+}
+
+func decodeMotion(val interface{}) (infinitime.MotionValues, error) {
+	out := infinitime.MotionValues{}
+	err := mapstructure.Decode(val, &out)
+	if err != nil {
+		return out, err
+	}
+	return out, nil
+}
+
+func decodeDFUProgress(val interface{}) (DFUProgress, error) {
+	out := DFUProgress{}
+	err := mapstructure.Decode(val, &out)
+	if err != nil {
+		return out, err
+	}
+	return out, nil
+}

api/info.go

@@ -0,0 +1,209 @@
+package api
+
+import (
+	"github.com/mitchellh/mapstructure"
+	"go.arsenm.dev/infinitime"
+	"go.arsenm.dev/itd/internal/types"
+)
+
+// Address gets the bluetooth address of the connected device
+func (c *Client) Address() (string, error) {
+	res, err := c.request(types.Request{
+		Type: types.ReqTypeBtAddress,
+	})
+	if err != nil {
+		return "", err
+	}
+
+	return res.Value.(string), nil
+}
+
+// Version gets the firmware version of the connected device
+func (c *Client) Version() (string, error) {
+	res, err := c.request(types.Request{
+		Type: types.ReqTypeFwVersion,
+	})
+	if err != nil {
+		return "", err
+	}
+
+	return res.Value.(string), nil
+}
+
+// BatteryLevel gets the battery level of the connected device
+func (c *Client) BatteryLevel() (uint8, error) {
+	res, err := c.request(types.Request{
+		Type: types.ReqTypeBattLevel,
+	})
+	if err != nil {
+		return 0, err
+	}
+
+	return uint8(res.Value.(float64)), nil
+}
+
+// WatchBatteryLevel returns a channel which will contain
+// new battery level values as they update. Do not use after
+// calling cancellation function
+func (c *Client) WatchBatteryLevel() (<-chan uint8, func(), error) {
+	c.battLevelCh = make(chan types.Response, 2)
+	err := c.requestNoRes(types.Request{
+		Type: types.ReqTypeWatchBattLevel,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	res := <-c.battLevelCh
+	done, cancel := c.cancelFn(res.ID, c.battLevelCh)
+	out := make(chan uint8, 2)
+	go func() {
+		for res := range c.battLevelCh {
+			select {
+			case <-done:
+				return
+			default:
+				out <- decodeUint8(res.Value)
+			}
+		}
+	}()
+	return out, cancel, nil
+}
+
+// HeartRate gets the heart rate from the connected device
+func (c *Client) HeartRate() (uint8, error) {
+	res, err := c.request(types.Request{
+		Type: types.ReqTypeHeartRate,
+	})
+	if err != nil {
+		return 0, err
+	}
+
+	return decodeUint8(res.Value), nil
+}
+
+// WatchHeartRate returns a channel which will contain
+// new heart rate values as they update. Do not use after
+// calling cancellation function
+func (c *Client) WatchHeartRate() (<-chan uint8, func(), error) {
+	c.heartRateCh = make(chan types.Response, 2)
+	err := c.requestNoRes(types.Request{
+		Type: types.ReqTypeWatchHeartRate,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	res := <-c.heartRateCh
+	done, cancel := c.cancelFn(res.ID, c.heartRateCh)
+	out := make(chan uint8, 2)
+	go func() {
+		for res := range c.heartRateCh {
+			select {
+			case <-done:
+				return
+			default:
+				out <- decodeUint8(res.Value)
+			}
+		}
+	}()
+	return out, cancel, nil
+}
+
+// cancelFn generates a cancellation function for the given
+// request type and channel
+func (c *Client) cancelFn(reqID string, ch chan types.Response) (chan struct{}, func()) {
+	done := make(chan struct{}, 1)
+	return done, func() {
+		done <- struct{}{}
+		close(ch)
+		c.requestNoRes(types.Request{
+			Type: types.ReqTypeCancel,
+			Data: reqID,
+		})
+	}
+}
+
+// StepCount gets the step count from the connected device
+func (c *Client) StepCount() (uint32, error) {
+	res, err := c.request(types.Request{
+		Type: types.ReqTypeStepCount,
+	})
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(res.Value.(float64)), nil
+}
+
+// WatchStepCount returns a channel which will contain
+// new step count values as they update. Do not use after
+// calling cancellation function
+func (c *Client) WatchStepCount() (<-chan uint32, func(), error) {
+	c.stepCountCh = make(chan types.Response, 2)
+	err := c.requestNoRes(types.Request{
+		Type: types.ReqTypeWatchStepCount,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	res := <-c.stepCountCh
+	done, cancel := c.cancelFn(res.ID, c.stepCountCh)
+	out := make(chan uint32, 2)
+	go func() {
+		for res := range c.stepCountCh {
+			select {
+			case <-done:
+				return
+			default:
+				out <- decodeUint32(res.Value)
+			}
+		}
+	}()
+	return out, cancel, nil
+}
+
+// Motion gets the motion values from the connected device
+func (c *Client) Motion() (infinitime.MotionValues, error) {
+	out := infinitime.MotionValues{}
+	res, err := c.request(types.Request{
+		Type: types.ReqTypeMotion,
+	})
+	if err != nil {
+		return out, err
+	}
+	err = mapstructure.Decode(res.Value, &out)
+	if err != nil {
+		return out, err
+	}
+	return out, nil
+}
+
+// WatchMotion returns a channel which will contain
+// new motion values as they update. Do not use after
+// calling cancellation function
+func (c *Client) WatchMotion() (<-chan infinitime.MotionValues, func(), error) {
+	c.motionCh = make(chan types.Response, 5)
+	err := c.requestNoRes(types.Request{
+		Type: types.ReqTypeWatchMotion,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	res := <-c.motionCh
+	done, cancel := c.cancelFn(res.ID, c.motionCh)
+	out := make(chan infinitime.MotionValues, 5)
+	go func() {
+		for res := range c.motionCh {
+			select {
+			case <-done:
+				return
+			default:
+				motion, err := decodeMotion(res.Value)
+				if err != nil {
+					continue
+				}
+				out <- motion
+			}
+		}
+	}()
+	return out, cancel, nil
+}

api/notify.go

@@ -0,0 +1,14 @@
+package api
+
+import "go.arsenm.dev/itd/internal/types"
+
+func (c *Client) Notify(title string, body string) error {
+	_, err := c.request(types.Request{
+		Type: types.ReqTypeNotify,
+		Data: types.ReqDataNotify{
+			Title: title,
+			Body: body,
+		},
+	})
+	return err
+}

api/time.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"time"
+
+	"go.arsenm.dev/itd/internal/types"
+)
+
+// SetTime sets the given time on the connected device
+func (c *Client) SetTime(t time.Time) error {
+	_, err := c.request(types.Request{
+		Type: types.ReqTypeSetTime,
+		Data: t.Format(time.RFC3339),
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// SetTimeNow sets the time on the connected device to
+// the current time. This is more accurate than
+// SetTime(time.Now()) due to RFC3339 formatting
+func (c *Client) SetTimeNow() error {
+	_, err := c.request(types.Request{
+		Type: types.ReqTypeSetTime,
+		Data: "now",
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}

api/upgrade.go

@@ -0,0 +1,48 @@
+package api
+
+import (
+	"encoding/json"
+
+	"go.arsenm.dev/itd/internal/types"
+)
+
+// DFUProgress stores the progress of a DFU upfate
+type DFUProgress types.DFUProgress
+
+// UpgradeType indicates the type of upgrade to be performed
+type UpgradeType uint8
+
+// Type of DFU upgrade
+const (
+	UpgradeTypeArchive UpgradeType = iota
+	UpgradeTypeFiles
+)
+
+// FirmwareUpgrade initiates a DFU update and returns the progress channel
+func (c *Client) FirmwareUpgrade(upgType UpgradeType, files ...string) (<-chan DFUProgress, error) {
+	err := json.NewEncoder(c.conn).Encode(types.Request{
+		Type: types.ReqTypeFwUpgrade,
+		Data: types.ReqDataFwUpgrade{
+			Type:  int(upgType),
+			Files: files,
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	c.dfuProgressCh = make(chan types.Response, 5)
+
+	out := make(chan DFUProgress, 5)
+	go func() {
+		for res := range c.dfuProgressCh {
+			progress, err := decodeDFUProgress(res.Value)
+			if err != nil {
+				continue
+			}
+			out <- progress
+		}
+	}()
+
+	return out, nil
+}

cmd/itctl/firmware/firmware.go

@@ -16,10 +16,11 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package firmware
 
 import (
 	"github.com/spf13/cobra"
+	"go.arsenm.dev/itd/cmd/itctl/root"
 )
 
 // firmwareCmd represents the firmware command
@@ -30,5 +31,5 @@ var firmwareCmd = &cobra.Command{
 }
 
 func init() {
-	rootCmd.AddCommand(firmwareCmd)
+	root.RootCmd.AddCommand(firmwareCmd)
 }

cmd/itctl/firmware/upgrade.go

@@ -16,61 +16,50 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package firmware
 
 import (
-	"bufio"
-	"encoding/json"
-	"net"
-
 	"github.com/cheggaaa/pb/v3"
-	"github.com/mitchellh/mapstructure"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
+	"go.arsenm.dev/itd/api"
 	"go.arsenm.dev/itd/internal/types"
 )
 
+type DFUProgress struct {
+	Received int64 `mapstructure:"recvd"`
+	Total    int64 `mapstructure:"total"`
+}
+
 // upgradeCmd represents the upgrade command
 var upgradeCmd = &cobra.Command{
 	Use:     "upgrade",
 	Short:   "Upgrade InfiniTime firmware using files or archive",
 	Aliases: []string{"upg"},
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
-		}
-		defer conn.Close()
 
-		var data types.ReqDataFwUpgrade
+		var upgType api.UpgradeType
+		var files []string
 		// Get relevant data struct
 		if viper.GetString("archive") != "" {
 			// Get archive data struct
-			data = types.ReqDataFwUpgrade{
+			upgType = types.UpgradeTypeArchive
-				Type:  types.UpgradeTypeArchive,
+			files = []string{viper.GetString("archive")}
-				Files: []string{viper.GetString("archive")},
-			}
 		} else if viper.GetString("initPkt") != "" && viper.GetString("firmware") != "" {
 			// Get files data struct
-			data = types.ReqDataFwUpgrade{
+			upgType = types.UpgradeTypeFiles
-				Type:  types.UpgradeTypeFiles,
+			files = []string{viper.GetString("initPkt"), viper.GetString("firmware")}
-				Files: []string{viper.GetString("initPkt"), viper.GetString("firmware")},
-			}
 		} else {
 			cmd.Usage()
 			log.Warn().Msg("Upgrade command requires either archive or init packet and firmware.")
 			return
 		}
 
-		// Encode response into connection
+		progress, err := client.FirmwareUpgrade(upgType, files...)
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeFwUpgrade,
-			Data: data,
-		})
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
+			log.Fatal().Err(err).Msg("Error initiating DFU")
 		}
 
 		// Create progress bar template
@@ -78,37 +67,18 @@ var upgradeCmd = &cobra.Command{
 		// Start full bar at 0 total
 		bar := pb.ProgressBarTemplate(barTmpl).Start(0)
 		// Create new scanner of connection
-		scanner := bufio.NewScanner(conn)
+		for event := range progress {
-		for scanner.Scan() {
-			var res types.Response
-			// Decode scanned line into response struct
-			err = json.Unmarshal(scanner.Bytes(), &res)
-			if err != nil {
-				log.Fatal().Err(err).Msg("Error decoding JSON response")
-			}
-			if res.Error {
-				log.Fatal().Msg(res.Message)
-			}
-			var event DFUProgress
-			// Decode response data into progress struct
-			err = mapstructure.Decode(res.Value, &event)
-			if err != nil {
-				log.Fatal().Err(err).Msg("Error decoding response data")
-			}
 			// Set total bytes in progress bar
 			bar.SetTotal(event.Total)
 			// Set amount of bytes received in progress bar
 			bar.SetCurrent(event.Received)
 			// If transfer finished, break
-			if event.Received == event.Total {
+			if event.Sent == event.Total {
 				break
 			}
 		}
 		// Finish progress bar
 		bar.Finish()
-		if scanner.Err() != nil {
-			log.Fatal().Err(scanner.Err()).Msg("Error while scanning output")
-		}
 	},
 }
 

cmd/itctl/firmware/version.go

@@ -16,18 +16,15 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package firmware
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
 // versionCmd represents the version command
@@ -36,40 +33,14 @@ var versionCmd = &cobra.Command{
 	Aliases: []string{"ver"},
 	Short:   "Get firmware version of InfiniTime",
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
+
+		version, err := client.Version()
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
+			log.Fatal().Err(err).Msg("Error getting firmware version")
-		}
-		defer conn.Close()
-
-		// Encode request into connection
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeFwVersion,
-		})
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
 		}
 
-		// Read one line from connection
+		fmt.Println(version)
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Decode line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
-		}
-
-		// Print returned value
-		fmt.Println(res.Value)
 	},
 }
 

cmd/itctl/get/address.go

@@ -16,18 +16,15 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package get
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
 // addressCmd represents the address command
@@ -36,40 +33,14 @@ var addressCmd = &cobra.Command{
 	Aliases: []string{"addr"},
 	Short:   "Get InfiniTime's bluetooth address",
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
+		
+		address, err := client.Address()
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
+			log.Fatal().Err(err).Msg("Error getting bluetooth address")
-		}
-		defer conn.Close()
-
-		// Encode request into connection
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeBtAddress,
-		})
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
 		}
 
-		// Read one line from connection
+		fmt.Println(address)
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Decode line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
-		}
-
-		// Print returned value
-		fmt.Println(res.Value)
 	},
 }
 

cmd/itctl/get/battery.go

@@ -16,18 +16,15 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package get
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
 // batteryCmd represents the batt command
@@ -36,40 +33,15 @@ var batteryCmd = &cobra.Command{
 	Aliases: []string{"batt"},
 	Short:   "Get battery level from InfiniTime",
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
-		}
-		defer conn.Close()
 
-		// Encode request into connection
+		battLevel, err := client.BatteryLevel()
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeBattLevel,
-		})
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
+			log.Fatal().Err(err).Msg("Error getting battery level")
-		}
-
-		// Read one line from connection
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Deocde line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
 		}
 
 		// Print returned percentage
-		fmt.Printf("%d%%\n", int(res.Value.(float64)))
+		fmt.Printf("%d%%\n", battLevel)
 	},
 }
 

cmd/itctl/get/get.go

@@ -16,10 +16,11 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package get
 
 import (
 	"github.com/spf13/cobra"
+	"go.arsenm.dev/itd/cmd/itctl/root"
 )
 
 // getCmd represents the get command
@@ -29,5 +30,5 @@ var getCmd = &cobra.Command{
 }
 
 func init() {
-	rootCmd.AddCommand(getCmd)
+	root.RootCmd.AddCommand(getCmd)
 }

cmd/itctl/get/heart.go

@@ -16,18 +16,15 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package get
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
 // heartCmd represents the heart command
@@ -35,40 +32,15 @@ var heartCmd = &cobra.Command{
 	Use:   "heart",
 	Short: "Get heart rate from InfiniTime",
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
-		}
-		defer conn.Close()
 
-		// Encode request into connection
+		heartRate, err := client.HeartRate()
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeHeartRate,
-		})
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
+			log.Fatal().Err(err).Msg("Error getting heart rate")
-		}
-
-		// Read one line from connection
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Decode line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
 		}
 
 		// Print returned BPM
-		fmt.Printf("%d BPM\n", int(res.Value.(float64)))
+		fmt.Printf("%d BPM\n", heartRate)
 	},
 }
 

cmd/itctl/get/motion.go

@@ -16,19 +16,15 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package get
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 
-	"github.com/mitchellh/mapstructure"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
 // steps.goCmd represents the steps.go command
@@ -36,42 +32,11 @@ var motionCmd = &cobra.Command{
 	Use:   "motion",
 	Short: "Get motion values from InfiniTime",
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
-		}
-		defer conn.Close()
 
-		// Encode request into connection
+		motionVals, err := client.Motion()
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeMotion,
-		})
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
+			log.Fatal().Err(err).Msg("Error getting motion values")
-		}
-
-		// Read one line from connection
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Decode line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		var motionVals types.MotionValues
-		err = mapstructure.Decode(res.Value, &motionVals)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding motion values")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
 		}
 
 		if viper.GetBool("shell") {

cmd/itctl/get/steps.go

@@ -16,18 +16,15 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package get
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
 // steps.goCmd represents the steps.go command
@@ -35,40 +32,15 @@ var stepsCmd = &cobra.Command{
 	Use:   "steps",
 	Short: "Get step count from InfiniTime",
 	Run: func(cmd *cobra.Command, args []string) {
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
-		}
-		defer conn.Close()
 
-		// Encode request into connection
+		stepCount, err := client.StepCount()
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeStepCount,
-		})
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
+			log.Fatal().Err(err).Msg("Error getting step count")
-		}
-
-		// Read one line from connection
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Decode line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
 		}
 
 		// Print returned BPM
-		fmt.Printf("%d Steps\n", int(res.Value.(float64)))
+		fmt.Printf("%d Steps\n", stepCount)
 	},
 }
 

cmd/itctl/main.go

@@ -19,9 +19,14 @@
 package main
 
 import (
-	"os"
+	_ "go.arsenm.dev/itd/cmd/itctl/firmware"
+	_ "go.arsenm.dev/itd/cmd/itctl/get"
+	_ "go.arsenm.dev/itd/cmd/itctl/notify"
+	"go.arsenm.dev/itd/cmd/itctl/root"
+	_ "go.arsenm.dev/itd/cmd/itctl/set"
+	_ "go.arsenm.dev/itd/cmd/itctl/watch"
 
-	"go.arsenm.dev/itd/cmd/itctl/cmd"
+	"os"
 
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
@@ -32,5 +37,5 @@ func init() {
 }
 
 func main() {
-	cmd.Execute()
+	root.Execute()
 }

cmd/itctl/notify/notify.go

@@ -16,17 +16,14 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package notify
 
 import (
-	"bufio"
-	"encoding/json"
-	"net"
-
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
+	"go.arsenm.dev/itd/cmd/itctl/root"
 )
 
 // notifyCmd represents the notify command
@@ -40,44 +37,15 @@ var notifyCmd = &cobra.Command{
 			log.Fatal().Msg("Command notify requires two arguments")
 		}
 
-		// Connect to itd UNIX socket
+		client := viper.Get("client").(*api.Client)
-		conn, err := net.Dial("unix", viper.GetString("sockPath"))
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
-		}
-		defer conn.Close()
 
-		// Encode request into connection
+		err := client.Notify(args[0], args[1])
-		err = json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeNotify,
-			Data: types.ReqDataNotify{
-				Title: args[0],
-				Body:  args[1],
-			},
-		})
 		if err != nil {
-			log.Fatal().Err(err).Msg("Error making request")
+			log.Fatal().Err(err).Msg("Error sending notification")
-		}
-
-		// Read one line from connection
-		line, _, err := bufio.NewReader(conn).ReadLine()
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error reading line from connection")
-		}
-
-		var res types.Response
-		// Decode line into response
-		err = json.Unmarshal(line, &res)
-		if err != nil {
-			log.Fatal().Err(err).Msg("Error decoding JSON data")
-		}
-
-		if res.Error {
-			log.Fatal().Msg(res.Message)
 		}
 	},
 }
 
 func init() {
-	rootCmd.AddCommand(notifyCmd)
+	root.RootCmd.AddCommand(notifyCmd)
 }

cmd/itctl/root/root.go

@@ -16,16 +16,18 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package root
 
 import (
 	"github.com/abiosoft/ishell"
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
+	"go.arsenm.dev/itd/api"
 )
 
-// rootCmd represents the base command when called without any subcommands
+// RootCmd represents the base command when called without any subcommands
-var rootCmd = &cobra.Command{
+var RootCmd = &cobra.Command{
 	Use:   "itctl",
 	Short: "Control the itd daemon for InfiniTime smartwatches",
 	Run: func(cmd *cobra.Command, args []string) {
@@ -61,18 +63,25 @@ var rootCmd = &cobra.Command{
 // Execute adds all child commands to the root command and sets flags appropriately.
 // This is called by main.main(). It only needs to happen once to the rootCmd.
 func Execute() {
-	rootCmd.CompletionOptions.DisableDefaultCmd = true
+	client, err := api.New(viper.GetString("sockPath"))
-	cobra.CheckErr(rootCmd.Execute())
+	if err != nil {
+		log.Fatal().Err(err).Msg("Error connecting to socket. Is itd running?")
+	}
+	defer client.Close()
+	viper.Set("client", client)
+	RootCmd.CompletionOptions.DisableDefaultCmd = true
+	cobra.CheckErr(RootCmd.Execute())
+
 }
 
 func init() {
 	// Register flag for socket path
-	rootCmd.Flags().StringP("socket-path", "s", "", "Path to itd socket")
+	RootCmd.Flags().StringP("socket-path", "s", api.DefaultAddr, "Path to itd socket")
 
 	// Bind flag and environment variable to viper key
-	viper.BindPFlag("sockPath", rootCmd.Flags().Lookup("socket-path"))
+	viper.BindPFlag("sockPath", RootCmd.Flags().Lookup("socket-path"))
 	viper.BindEnv("sockPath", "ITCTL_SOCKET_PATH")
 
 	// Set default value for socket path
-	viper.SetDefault("sockPath", "/tmp/itd/socket")
+	viper.SetDefault("sockPath", api.DefaultAddr)
 }

cmd/itctl/set/set.go

@@ -16,10 +16,11 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package set
 
 import (
 	"github.com/spf13/cobra"
+	"go.arsenm.dev/itd/cmd/itctl/root"
 )
 
 // setCmd represents the set command
@@ -29,5 +30,5 @@ var setCmd = &cobra.Command{
 }
 
 func init() {
-	rootCmd.AddCommand(setCmd)
+	root.RootCmd.AddCommand(setCmd)
 }

cmd/itctl/set/time.go

@@ -16,7 +16,7 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package set
 
 import (
 	"bufio"

cmd/itctl/watch/battery.go

@@ -0,0 +1,76 @@
+/*
+ *	itd uses bluetooth low energy to communicate with InfiniTime devices
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package watch
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"go.arsenm.dev/itd/api"
+)
+
+// heartCmd represents the address command
+var batteryCmd = &cobra.Command{
+	Use:   "battery",
+	Aliases: []string{"batt"},
+	Short: "Watch InfiniTime's battery level for changes",
+	Run: func(cmd *cobra.Command, args []string) {
+		client := viper.Get("client").(*api.Client)
+
+		battLevelCh, cancel, err := client.WatchBatteryLevel()
+		if err != nil {
+			log.Fatal().Err(err).Msg("Error getting battery level channel")
+		}
+		defer cancel()
+
+		signalCh := make(chan os.Signal, 1)
+		go func() {
+			<-signalCh
+			cancel()
+			os.Exit(0)
+		}()
+		signal.Notify(signalCh,
+			syscall.SIGINT,
+			syscall.SIGTERM,			
+		)
+
+		for battlevel := range battLevelCh {
+			fmt.Printf("%d%%\n", battlevel)
+		}
+	},
+}
+
+func init() {
+	watchCmd.AddCommand(batteryCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// addressCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// addressCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/itctl/watch/heart.go

@@ -0,0 +1,75 @@
+/*
+ *	itd uses bluetooth low energy to communicate with InfiniTime devices
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package watch
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"go.arsenm.dev/itd/api"
+)
+
+// heartCmd represents the address command
+var heartCmd = &cobra.Command{
+	Use:   "heart",
+	Short: "Watch InfiniTime's heart rate for changes",
+	Run: func(cmd *cobra.Command, args []string) {
+		client := viper.Get("client").(*api.Client)
+
+		heartRateCh, cancel, err := client.WatchHeartRate()
+		if err != nil {
+			log.Fatal().Err(err).Msg("Error getting heart rate channel")
+		}
+		defer cancel()
+
+		signalCh := make(chan os.Signal, 1)
+		go func() {
+			<-signalCh
+			cancel()
+			os.Exit(0)
+		}()
+		signal.Notify(signalCh,
+			syscall.SIGINT,
+			syscall.SIGTERM,			
+		)
+
+		for heartRate := range heartRateCh {
+			fmt.Println(heartRate, "BPM")
+		}
+	},
+}
+
+func init() {
+	watchCmd.AddCommand(heartCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// addressCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// addressCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/itctl/watch/motion.go

@@ -0,0 +1,86 @@
+/*
+ *	itd uses bluetooth low energy to communicate with InfiniTime devices
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package watch
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"go.arsenm.dev/itd/api"
+)
+
+// heartCmd represents the address command
+var motionCmd = &cobra.Command{
+	Use:   "motion",
+	Short: "Watch InfiniTime's motion values for changes",
+	Run: func(cmd *cobra.Command, args []string) {
+		client := viper.Get("client").(*api.Client)
+
+		motionValCh, cancel, err := client.WatchMotion()
+		if err != nil {
+			log.Fatal().Err(err).Msg("Error getting motion value channel")
+		}
+		defer cancel()
+
+		signalCh := make(chan os.Signal, 1)
+		go func() {
+			<-signalCh
+			cancel()
+			os.Exit(0)
+		}()
+		signal.Notify(signalCh,
+			syscall.SIGINT,
+			syscall.SIGTERM,
+		)
+
+		for motionVals := range motionValCh {
+			if viper.GetBool("shell") {
+				fmt.Printf(
+					"X=%d\nY=%d\nZ=%d\n",
+					motionVals.X,
+					motionVals.Y,
+					motionVals.Z,
+				)
+			} else {
+				fmt.Printf("%+v\n", motionVals)
+			}
+		}
+	},
+}
+
+func init() {
+	watchCmd.AddCommand(motionCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// addressCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// addressCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+	motionCmd.Flags().BoolP("shell", "s", false, "Output data in shell-compatible format")
+	viper.BindPFlag("shell", motionCmd.Flags().Lookup("shell"))
+}

cmd/itctl/watch/steps.go

@@ -0,0 +1,75 @@
+/*
+ *	itd uses bluetooth low energy to communicate with InfiniTime devices
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package watch
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"go.arsenm.dev/itd/api"
+)
+
+// heartCmd represents the address command
+var stepsCmd = &cobra.Command{
+	Use:   "steps",
+	Short: "Watch InfiniTime's step count for changes",
+	Run: func(cmd *cobra.Command, args []string) {
+		client := viper.Get("client").(*api.Client)
+
+		stepCountCh, cancel, err := client.WatchStepCount()
+		if err != nil {
+			log.Fatal().Err(err).Msg("Error getting step count channel")
+		}
+		defer cancel()
+
+		signalCh := make(chan os.Signal, 1)
+		go func() {
+			<-signalCh
+			cancel()
+			os.Exit(0)
+		}()
+		signal.Notify(signalCh,
+			syscall.SIGINT,
+			syscall.SIGTERM,			
+		)
+
+		for stepCount := range stepCountCh {
+			fmt.Println(stepCount, "Steps")
+		}
+	},
+}
+
+func init() {
+	watchCmd.AddCommand(stepsCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// addressCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// addressCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/itctl/watch/watch.go

@@ -16,9 +16,19 @@
  *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package cmd
+package watch
 
-type DFUProgress struct {
+import (
-	Received int64 `mapstructure:"recvd"`
+	"github.com/spf13/cobra"
-	Total    int64 `mapstructure:"total"`
+	"go.arsenm.dev/itd/cmd/itctl/root"
+)
+
+// watchCmd represents the watch command
+var watchCmd = &cobra.Command{
+	Use:   "watch",
+	Short: "Watch values from InfiniTime for changes",
+}
+
+func init() {
+	root.RootCmd.AddCommand(watchCmd)
 }

cmd/itgui/info.go

@@ -1,22 +1,17 @@
 package main
 
 import (
-	"bufio"
-	"errors"
 	"fmt"
 	"image/color"
-	"net"
-
-	"encoding/json"
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/canvas"
 	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/theme"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
-func infoTab(parent fyne.Window) *fyne.Container {
+func infoTab(parent fyne.Window, client *api.Client) *fyne.Container {
 	infoLayout := container.NewVBox(
 		// Add rectangle for a bit of padding
 		canvas.NewRectangle(color.Transparent),
@@ -25,20 +20,50 @@ func infoTab(parent fyne.Window) *fyne.Container {
 	// Create label for heart rate
 	heartRateLbl := newText("0 BPM", 24)
 	// Creae container to store heart rate section
-	heartRate := container.NewVBox(
+	heartRateSect := container.NewVBox(
 		newText("Heart Rate", 12),
 		heartRateLbl,
 		canvas.NewLine(theme.ShadowColor()),
 	)
-	infoLayout.Add(heartRate)
+	infoLayout.Add(heartRateSect)
 
-	// Watch for heart rate updates
+	heartRateCh, cancel, err := client.WatchHeartRate()
-	go watch(types.ReqTypeWatchHeartRate, func(data interface{}) {
+	if err != nil {
-		// Change text of heart rate label
+		guiErr(err, "Error getting heart rate channel", true, parent)
-		heartRateLbl.Text = fmt.Sprintf("%d BPM", int(data.(float64)))
+	}
-		// Refresh label
+	onClose = append(onClose, cancel)
-		heartRateLbl.Refresh()
+	go func() {
-	}, parent)
+		for heartRate := range heartRateCh {
+			// Change text of heart rate label
+			heartRateLbl.Text = fmt.Sprintf("%d BPM", heartRate)
+			// Refresh label
+			heartRateLbl.Refresh()
+		}
+	}()
+
+	// Create label for heart rate
+	stepCountLbl := newText("0 Steps", 24)
+	// Creae container to store heart rate section
+	stepCountSect := container.NewVBox(
+		newText("Step Count", 12),
+		stepCountLbl,
+		canvas.NewLine(theme.ShadowColor()),
+	)
+	infoLayout.Add(stepCountSect)
+
+	stepCountCh, cancel, err := client.WatchStepCount()
+	if err != nil {
+		guiErr(err, "Error getting step count channel", true, parent)
+	}
+	onClose = append(onClose, cancel)
+	go func() {
+		for stepCount := range stepCountCh {
+			// Change text of heart rate label
+			stepCountLbl.Text = fmt.Sprintf("%d Steps", stepCount)
+			// Refresh label
+			stepCountLbl.Refresh()
+		}
+	}()
 
 	// Create label for battery level
 	battLevelLbl := newText("0%", 24)
@@ -50,32 +75,40 @@ func infoTab(parent fyne.Window) *fyne.Container {
 	)
 	infoLayout.Add(battLevel)
 
-	// Watch for changes in battery level
+	battLevelCh, cancel, err := client.WatchBatteryLevel()
-	go watch(types.ReqTypeWatchBattLevel, func(data interface{}) {
+	if err != nil {
-		battLevelLbl.Text = fmt.Sprintf("%d%%", int(data.(float64)))
+		guiErr(err, "Error getting battery level channel", true, parent)
-		battLevelLbl.Refresh()
+	}
-	}, parent)
+	onClose = append(onClose, cancel)
+	go func() {
+		for battLevel := range battLevelCh {
+			// Change text of battery level label
+			battLevelLbl.Text = fmt.Sprintf("%d%%", battLevel)
+			// Refresh label
+			battLevelLbl.Refresh()
+		}
+	}()
 
-	fwVerString, err := get(types.ReqTypeFwVersion)
+	fwVerString, err := client.Version()
 	if err != nil {
 		guiErr(err, "Error getting firmware string", true, parent)
 	}
 
 	fwVer := container.NewVBox(
 		newText("Firmware Version", 12),
-		newText(fwVerString.(string), 24),
+		newText(fwVerString, 24),
 		canvas.NewLine(theme.ShadowColor()),
 	)
 	infoLayout.Add(fwVer)
 
-	btAddrString, err := get(types.ReqTypeBtAddress)
+	btAddrString, err := client.Address()
 	if err != nil {
 		panic(err)
 	}
 
 	btAddr := container.NewVBox(
 		newText("Bluetooth Address", 12),
-		newText(btAddrString.(string), 24),
+		newText(btAddrString, 24),
 		canvas.NewLine(theme.ShadowColor()),
 	)
 	infoLayout.Add(btAddr)
@@ -83,65 +116,6 @@ func infoTab(parent fyne.Window) *fyne.Container {
 	return infoLayout
 }
 
-func watch(req int, onRecv func(data interface{}), parent fyne.Window) error {
-	conn, err := net.Dial("unix", SockPath)
-	if err != nil {
-		return err
-	}
-	defer conn.Close()
-	err = json.NewEncoder(conn).Encode(types.Request{
-		Type: req,
-	})
-	if err != nil {
-		return err
-	}
-	scanner := bufio.NewScanner(conn)
-	for scanner.Scan() {
-		res, err := getResp(scanner.Bytes())
-		if err != nil {
-			guiErr(err, "Error getting response from connection", false, parent)
-			continue
-		}
-		onRecv(res.Value)
-	}
-	return nil
-}
-
-func get(req int) (interface{}, error) {
-	conn, err := net.Dial("unix", SockPath)
-	if err != nil {
-		return nil, err
-	}
-	defer conn.Close()
-	err = json.NewEncoder(conn).Encode(types.Request{
-		Type: req,
-	})
-	if err != nil {
-		return nil, err
-	}
-	line, _, err := bufio.NewReader(conn).ReadLine()
-	if err != nil {
-		return nil, err
-	}
-	res, err := getResp(line)
-	if err != nil {
-		return nil, err
-	}
-	return res.Value, nil
-}
-
-func getResp(line []byte) (*types.Response, error) {
-	var res types.Response
-	err := json.Unmarshal(line, &res)
-	if err != nil {
-		return nil, err
-	}
-	if res.Error {
-		return nil, errors.New(res.Message)
-	}
-	return &res, nil
-}
-
 func newText(t string, size float32) *canvas.Text {
 	text := canvas.NewText(t, theme.ForegroundColor())
 	text.TextSize = size

cmd/itgui/main.go

@@ -1,31 +1,39 @@
 package main
 
 import (
-	"net"
-
 	"fyne.io/fyne/v2/app"
 	"fyne.io/fyne/v2/container"
+	"go.arsenm.dev/itd/api"
 )
 
-var SockPath = "/tmp/itd/socket"
+var onClose []func()
 
 func main() {
 	// Create new app
 	a := app.New()
 	// Create new window with title "itgui"
 	window := a.NewWindow("itgui")
+	window.SetOnClosed(func() {
+		for _, closeFn := range onClose {
+			closeFn()
+		}
+	})
 
-	_, err := net.Dial("unix", SockPath)
+	client, err := api.New(api.DefaultAddr)
 	if err != nil {
-		guiErr(err, "Error dialing itd socket", true, window)
+		guiErr(err, "Error connecting to itd", true, window)
 	}
+	onClose = append(onClose, func() {
+		client.Close()
+	})
 
 	// Create new app tabs container
 	tabs := container.NewAppTabs(
-		container.NewTabItem("Info", infoTab(window)),
+		container.NewTabItem("Info", infoTab(window, client)),
-		container.NewTabItem("Notify", notifyTab(window)),
+		container.NewTabItem("Motion", motionTab(window, client)),
-		container.NewTabItem("Set Time", timeTab(window)),
+		container.NewTabItem("Notify", notifyTab(window, client)),
-		container.NewTabItem("Upgrade", upgradeTab(window)),
+		container.NewTabItem("Set Time", timeTab(window, client)),
+		container.NewTabItem("Upgrade", upgradeTab(window, client)),
 	)
 
 	// Set tabs as window content

cmd/itgui/motion.go

@@ -0,0 +1,105 @@
+package main
+
+import (
+	"image/color"
+	"strconv"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+	"go.arsenm.dev/itd/api"
+)
+
+func motionTab(parent fyne.Window, client *api.Client) *fyne.Container {
+	// Create label for heart rate
+	xCoordLbl := newText("0", 24)
+	// Creae container to store heart rate section
+	xCoordSect := container.NewVBox(
+		newText("X Coordinate", 12),
+		xCoordLbl,
+		canvas.NewLine(theme.ShadowColor()),
+	)
+
+	// Create label for heart rate
+	yCoordLbl := newText("0", 24)
+	// Creae container to store heart rate section
+	yCoordSect := container.NewVBox(
+		newText("Y Coordinate", 12),
+		yCoordLbl,
+		canvas.NewLine(theme.ShadowColor()),
+	)
+	// Create label for heart rate
+	zCoordLbl := newText("0", 24)
+	// Creae container to store heart rate section
+	zCoordSect := container.NewVBox(
+		newText("Z Coordinate", 12),
+		zCoordLbl,
+		canvas.NewLine(theme.ShadowColor()),
+	)
+
+	// Create variable to keep track of whether motion started
+	started := false
+
+	// Create button to stop motion
+	stopBtn := widget.NewButton("Stop", nil)
+	// Create button to start motion
+	startBtn := widget.NewButton("Start", func() {
+		// if motion is started
+		if started {
+			// Do nothing
+			return
+		}
+		// Set motion started
+		started = true
+		// Watch motion values
+		motionCh, cancel, err := client.WatchMotion()
+		if err != nil {
+			guiErr(err, "Error getting heart rate channel", true, parent)
+		}
+		// Create done channel
+		done := make(chan struct{}, 1)
+		go func() {
+			for {
+				select {
+				case <-done:
+					return
+				case motion := <-motionCh:
+					// Set labels to new values
+					xCoordLbl.Text = strconv.Itoa(int(motion.X))
+					yCoordLbl.Text = strconv.Itoa(int(motion.Y))
+					zCoordLbl.Text = strconv.Itoa(int(motion.Z))
+					// Refresh labels to display new values
+					xCoordLbl.Refresh()
+					yCoordLbl.Refresh()
+					zCoordLbl.Refresh()
+				}
+			}
+		}()
+		// Create stop function
+		stopBtn.OnTapped = func() {
+			done <- struct{}{}
+			started = false
+			cancel()
+		}
+
+	})
+	// Run stop button function on close if possible
+	onClose = append(onClose, func() {
+		if stopBtn.OnTapped != nil {
+			stopBtn.OnTapped()
+		}
+	})
+
+	// Return new container containing all elements
+	return container.NewVBox(
+		// Add rectangle for a bit of padding
+		canvas.NewRectangle(color.Transparent),
+		startBtn,
+		stopBtn,
+		xCoordSect,
+		yCoordSect,
+		zCoordSect,
+	)
+}

cmd/itgui/notify.go

@@ -1,17 +1,14 @@
 package main
 
 import (
-	"encoding/json"
-	"net"
-
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/layout"
 	"fyne.io/fyne/v2/widget"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
-func notifyTab(parent fyne.Window) *fyne.Container {
+func notifyTab(parent fyne.Window, client *api.Client) *fyne.Container {
 	// Create new entry for notification title
 	titleEntry := widget.NewEntry()
 	titleEntry.SetPlaceHolder("Title")
@@ -22,20 +19,11 @@ func notifyTab(parent fyne.Window) *fyne.Container {
 
 	// Create new button to send notification
 	sendBtn := widget.NewButton("Send", func() {
-		// Dial itd UNIX socket
+		err := client.Notify(titleEntry.Text, bodyEntry.Text)
-		conn, err := net.Dial("unix", SockPath)
 		if err != nil {
-			guiErr(err, "Error dialing socket", false, parent)
+			guiErr(err, "Error sending notification", false, parent)
 			return
 		}
-		// Encode notify request on connection
-		json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeNotify,
-			Data: types.ReqDataNotify{
-				Title: titleEntry.Text,
-				Body:  bodyEntry.Text,
-			},
-		})
 	})
 
 	// Return new container containing all elements

cmd/itgui/time.go

@@ -1,18 +1,16 @@
 package main
 
 import (
-	"encoding/json"
-	"net"
 	"time"
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/layout"
 	"fyne.io/fyne/v2/widget"
-	"go.arsenm.dev/itd/internal/types"
+	"go.arsenm.dev/itd/api"
 )
 
-func timeTab(parent fyne.Window) *fyne.Container {
+func timeTab(parent fyne.Window, client *api.Client) *fyne.Container {
 	// Create new entry for time string
 	timeEntry := widget.NewEntry()
 	// Set text to current time formatter properly
@@ -21,7 +19,7 @@ func timeTab(parent fyne.Window) *fyne.Container {
 	// Create button to set current time
 	currentBtn := widget.NewButton("Set Current", func() {
 		timeEntry.SetText(time.Now().Format(time.RFC1123))
-		setTime(true)
+		setTime(client, true)
 	})
 
 	// Create button to set time inside entry
@@ -33,7 +31,7 @@ func timeTab(parent fyne.Window) *fyne.Container {
 			return
 		}
 		// Set time to parsed time
-		setTime(false, parsedTime)
+		setTime(client, false, parsedTime)
 	})
 
 	// Return new container with all elements centered
@@ -48,30 +46,13 @@ func timeTab(parent fyne.Window) *fyne.Container {
 
 // setTime sets the first element in the variadic parameter
 // if current is false, otherwise, it sets the current time.
-func setTime(current bool, t ...time.Time) error {
+func setTime(client *api.Client, current bool, t ...time.Time) error {
-	// Dial UNIX socket
+	var err error
-	conn, err := net.Dial("unix", SockPath)
-	if err != nil {
-		return err
-	}
-	defer conn.Close()
-	var data string
-	// If current is true, use the string "now"
-	// otherwise, use the formatted time from the
-	// first element in the variadic parameter.
-	// "now" is more accurate than formatting
-	// current time as only seconds are preserved
-	// in that case.
 	if current {
-		data = "now"
+		err = client.SetTimeNow()
 	} else {
-		data = t[0].Format(time.RFC3339)
+		err = client.SetTime(t[0])
 	}
-	// Encode SetTime request with above data
-	err = json.NewEncoder(conn).Encode(types.Request{
-		Type: types.ReqTypeSetTime,
-		Data: data,
-	})
 	if err != nil {
 		return err
 	}

cmd/itgui/upgrade.go

@@ -1,10 +1,7 @@
 package main
 
 import (
-	"bufio"
-	"encoding/json"
 	"fmt"
-	"net"
 	"path/filepath"
 
 	"fyne.io/fyne/v2"
@@ -13,11 +10,11 @@ import (
 	"fyne.io/fyne/v2/layout"
 	"fyne.io/fyne/v2/storage"
 	"fyne.io/fyne/v2/widget"
-	"github.com/mitchellh/mapstructure"
+	"go.arsenm.dev/itd/api"
 	"go.arsenm.dev/itd/internal/types"
 )
 
-func upgradeTab(parent fyne.Window) *fyne.Container {
+func upgradeTab(parent fyne.Window, client *api.Client) *fyne.Container {
 	var (
 		archivePath  string
 		firmwarePath string
@@ -117,7 +114,7 @@ func upgradeTab(parent fyne.Window) *fyne.Container {
 		// Resize modal to 300x100
 		progressDlg.Resize(fyne.NewSize(300, 100))
 
-		var fwUpgType int
+		var fwUpgType api.UpgradeType
 		var files []string
 		// Get appropriate upgrade type and file paths
 		switch upgradeTypeSelect.Selected {
@@ -129,48 +126,18 @@ func upgradeTab(parent fyne.Window) *fyne.Container {
 			files = append(files, initPktPath, firmwarePath)
 		}
 
-		// Dial itd UNIX socket
+		progress, err := client.FirmwareUpgrade(fwUpgType, files...)
-		conn, err := net.Dial("unix", SockPath)
 		if err != nil {
-			guiErr(err, "Error dialing socket", false, parent)
+			guiErr(err, "Error initiating DFU", false, parent)
 			return
 		}
-		defer conn.Close()
-
-		// Encode firmware upgrade request to connection
-		json.NewEncoder(conn).Encode(types.Request{
-			Type: types.ReqTypeFwUpgrade,
-			Data: types.ReqDataFwUpgrade{
-				Type:  fwUpgType,
-				Files: files,
-			},
-		})
 
 		// Show progress dialog
 		progressDlg.Show()
 		// Hide progress dialog after completion
 		defer progressDlg.Hide()
 
-		scanner := bufio.NewScanner(conn)
+		for event := range progress {
-		for scanner.Scan() {
-			var res types.Response
-			// Decode scanned line into response struct
-			err = json.Unmarshal(scanner.Bytes(), &res)
-			if err != nil {
-				guiErr(err, "Error decoding response", false, parent)
-				return
-			}
-			if res.Error {
-				guiErr(err, "Error returned in response", false, parent)
-				return
-			}
-			var event types.DFUProgress
-			// Decode response data into progress struct
-			err = mapstructure.Decode(res.Value, &event)
-			if err != nil {
-				guiErr(err, "Error decoding response value", false, parent)
-				return
-			}
 			// Set label text to received / total B
 			progressLbl.SetText(fmt.Sprintf("%d / %d B", event.Received, event.Total))
 			// Set progress bar values
@@ -179,7 +146,7 @@ func upgradeTab(parent fyne.Window) *fyne.Container {
 			// Refresh progress bar
 			progressBar.Refresh()
 			// If transfer finished, break
-			if event.Received == event.Total {
+			if event.Sent == event.Total {
 				break
 			}
 		}

go.mod

@@ -13,6 +13,7 @@ require (
 	github.com/go-gl/gl v0.0.0-20210905235341-f7a045908259 // indirect
 	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20210727001814-0db043d8d5be // indirect
 	github.com/godbus/dbus/v5 v5.0.5
+	github.com/google/uuid v1.1.2
 	github.com/mattn/go-colorable v0.1.11 // indirect
 	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/mitchellh/mapstructure v1.4.2
@@ -24,7 +25,7 @@ require (
 	github.com/srwiley/oksvg v0.0.0-20210519022825-9fc0c575d5fe // indirect
 	github.com/srwiley/rasterx v0.0.0-20210519020934-456a8d69b780 // indirect
 	github.com/yuin/goldmark v1.4.1 // indirect
-	go.arsenm.dev/infinitime v0.0.0-20211022195951-45baea10486b
+	go.arsenm.dev/infinitime v0.0.0-20211023042633-53aa6f8a0c72
 	golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d // indirect
 	golang.org/x/net v0.0.0-20211011170408-caeb26a5c8c0 // indirect
 	golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac // indirect

go.sum

@@ -193,6 +193,7 @@ github.com/google/pprof v0.0.0-20210609004039-a478d1d731e9/go.mod h1:kpwsk12EmLe
 github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
@@ -366,8 +367,8 @@ github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1
 github.com/yuin/goldmark v1.3.8/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.1 h1:/vn0k+RBvwlxEmP5E7SZMqNxPhfMVFEJiykr15/0XKM=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
-go.arsenm.dev/infinitime v0.0.0-20211022195951-45baea10486b h1:2VitKPwSYSWXmL5BH88nfTPLSIYPCt4yubpEJHhcQBc=
+go.arsenm.dev/infinitime v0.0.0-20211023042633-53aa6f8a0c72 h1:e8kOuL6Jj8ZjJzkGwJ3xqpGG9EhUzfvZk9AlSsm3X1U=
-go.arsenm.dev/infinitime v0.0.0-20211022195951-45baea10486b/go.mod h1:gaepaueUz4J5FfxuV19B4w5pi+V3mD0LTef50ryxr/Q=
+go.arsenm.dev/infinitime v0.0.0-20211023042633-53aa6f8a0c72/go.mod h1:gaepaueUz4J5FfxuV19B4w5pi+V3mD0LTef50ryxr/Q=
 go.etcd.io/etcd/api/v3 v3.5.0/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
 go.etcd.io/etcd/client/pkg/v3 v3.5.0/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
 go.etcd.io/etcd/client/v2 v2.305.0/go.mod h1:h9puh54ZTgAKtEbut2oe9P4L/oqKCVB6xsXlzd7alYQ=

internal/types/types.go

@@ -14,6 +14,7 @@ const (
 	ReqTypeWatchMotion
 	ReqTypeStepCount
 	ReqTypeWatchStepCount
+	ReqTypeCancel
 )
 
 const (
@@ -27,8 +28,10 @@ type ReqDataFwUpgrade struct {
 }
 
 type Response struct {
+	Type    int         `json:"type"`
 	Value   interface{} `json:"value,omitempty"`
 	Message string      `json:"msg,omitempty"`
+	ID      string      `json:"id,omitempty"`
 	Error   bool        `json:"error"`
 }
 
@@ -45,6 +48,7 @@ type ReqDataNotify struct {
 type DFUProgress struct {
 	Received int64 `mapstructure:"recvd"`
 	Total    int64 `mapstructure:"total"`
+	Sent     int64 `mapstructure:"sent"`
 }
 
 type MotionValues struct {

socket.go

@@ -27,6 +27,7 @@ import (
 	"path/filepath"
 	"time"
 
+	"github.com/google/uuid"
 	"github.com/mitchellh/mapstructure"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/viper"
@@ -35,6 +36,29 @@ import (
 	"go.arsenm.dev/itd/translit"
 )
 
+type DoneMap map[string]chan struct{}
+
+func (dm DoneMap) Exists(key string) bool {
+	_, ok := dm[key]
+	return ok
+}
+
+func (dm DoneMap) Done(key string) {
+	ch := dm[key]
+	ch <- struct{}{}
+}
+
+func (dm DoneMap) Create(key string) {
+	dm[key] = make(chan struct{}, 1)
+}
+
+func (dm DoneMap) Remove(key string) {
+	close(dm[key])
+	delete(dm, key)
+}
+
+var done = DoneMap{}
+
 func startSocket(dev *infinitime.Device) error {
 	// Make socket directory if non-existant
 	err := os.MkdirAll(filepath.Dir(viper.GetString("socket.path")), 0755)
@@ -75,11 +99,6 @@ func startSocket(dev *infinitime.Device) error {
 
 func handleConnection(conn net.Conn, dev *infinitime.Device) {
 	defer conn.Close()
-	// If firmware is updating, return error
-	if firmwareUpdating {
-		connErr(conn, nil, "Firmware update in progress")
-		return
-	}
 
 	// Create new scanner on connection
 	scanner := bufio.NewScanner(conn)
@@ -88,134 +107,203 @@ func handleConnection(conn net.Conn, dev *infinitime.Device) {
 		// Decode scanned message into types.Request
 		err := json.Unmarshal(scanner.Bytes(), &req)
 		if err != nil {
-			connErr(conn, err, "Error decoding JSON input")
+			connErr(conn, req.Type, err, "Error decoding JSON input")
 			continue
 		}
 
+		// If firmware is updating, return error
+		if firmwareUpdating {
+			connErr(conn, req.Type, nil, "Firmware update in progress")
+			return
+		}
+
 		switch req.Type {
 		case types.ReqTypeHeartRate:
 			// Get heart rate from watch
 			heartRate, err := dev.HeartRate()
 			if err != nil {
-				connErr(conn, err, "Error getting heart rate")
+				connErr(conn, req.Type, err, "Error getting heart rate")
 				break
 			}
 			// Encode heart rate to connection
 			json.NewEncoder(conn).Encode(types.Response{
+				Type:  req.Type,
 				Value: heartRate,
 			})
 		case types.ReqTypeWatchHeartRate:
-			heartRateCh, err := dev.WatchHeartRate()
+			heartRateCh, cancel, err := dev.WatchHeartRate()
 			if err != nil {
-				connErr(conn, err, "Error getting heart rate channel")
+				connErr(conn, req.Type, err, "Error getting heart rate channel")
 				break
 			}
+			reqID := uuid.New().String()
 			go func() {
+				done.Create(reqID)
+				// For every heart rate value
 				for heartRate := range heartRateCh {
-					json.NewEncoder(conn).Encode(types.Response{
+					select {
-						Value: heartRate,
+					case <-done[reqID]:
-					})
+						// Stop notifications if done signal received
+						cancel()
+						done.Remove(reqID)
+						return
+					default:
+						// Encode response to connection if no done signal received
+						json.NewEncoder(conn).Encode(types.Response{
+							Type:  req.Type,
+							ID:    reqID,
+							Value: heartRate,
+						})
+					}
 				}
 			}()
 		case types.ReqTypeBattLevel:
 			// Get battery level from watch
 			battLevel, err := dev.BatteryLevel()
 			if err != nil {
-				connErr(conn, err, "Error getting battery level")
+				connErr(conn, req.Type, err, "Error getting battery level")
 				break
 			}
 			// Encode battery level to connection
 			json.NewEncoder(conn).Encode(types.Response{
+				Type:  req.Type,
 				Value: battLevel,
 			})
 		case types.ReqTypeWatchBattLevel:
-			battLevelCh, err := dev.WatchBatteryLevel()
+			battLevelCh, cancel, err := dev.WatchBatteryLevel()
 			if err != nil {
-				connErr(conn, err, "Error getting heart rate channel")
+				connErr(conn, req.Type, err, "Error getting battery level channel")
 				break
 			}
+			reqID := uuid.New().String()
 			go func() {
+				done.Create(reqID)
+				// For every battery level value
 				for battLevel := range battLevelCh {
-					json.NewEncoder(conn).Encode(types.Response{
+					select {
-						Value: battLevel,
+					case <-done[reqID]:
-					})
+						// Stop notifications if done signal received
+						cancel()
+						done.Remove(reqID)
+						return
+					default:
+						// Encode response to connection if no done signal received
+						json.NewEncoder(conn).Encode(types.Response{
+							Type:  req.Type,
+							ID:    reqID,
+							Value: battLevel,
+						})
+					}
 				}
 			}()
 		case types.ReqTypeMotion:
 			// Get battery level from watch
 			motionVals, err := dev.Motion()
 			if err != nil {
-				connErr(conn, err, "Error getting motion values")
+				connErr(conn, req.Type, err, "Error getting motion values")
 				break
 			}
 			// Encode battery level to connection
 			json.NewEncoder(conn).Encode(types.Response{
+				Type:  req.Type,
 				Value: motionVals,
 			})
 		case types.ReqTypeWatchMotion:
-			motionValCh, _, err := dev.WatchMotion()
+			motionValCh, cancel, err := dev.WatchMotion()
 			if err != nil {
-				connErr(conn, err, "Error getting heart rate channel")
+				connErr(conn, req.Type, err, "Error getting heart rate channel")
 				break
 			}
+			reqID := uuid.New().String()
 			go func() {
+				done.Create(reqID)
+				// For every motion event
 				for motionVals := range motionValCh {
-					json.NewEncoder(conn).Encode(types.Response{
+					select {
-						Value: motionVals,
+					case <-done[reqID]:
-					})
+						// Stop notifications if done signal received
+						cancel()
+						done.Remove(reqID)
+
+						return
+					default:
+						// Encode response to connection if no done signal received
+						json.NewEncoder(conn).Encode(types.Response{
+							Type:  req.Type,
+							ID:    reqID,
+							Value: motionVals,
+						})
+					}
 				}
 			}()
 		case types.ReqTypeStepCount:
 			// Get battery level from watch
 			stepCount, err := dev.StepCount()
 			if err != nil {
-				connErr(conn, err, "Error getting step count")
+				connErr(conn, req.Type, err, "Error getting step count")
 				break
 			}
 			// Encode battery level to connection
 			json.NewEncoder(conn).Encode(types.Response{
+				Type:  req.Type,
 				Value: stepCount,
 			})
 		case types.ReqTypeWatchStepCount:
-			stepCountCh, _, err := dev.WatchStepCount()
+			stepCountCh, cancel, err := dev.WatchStepCount()
 			if err != nil {
-				connErr(conn, err, "Error getting heart rate channel")
+				connErr(conn, req.Type, err, "Error getting heart rate channel")
 				break
 			}
+			reqID := uuid.New().String()
 			go func() {
+				done.Create(reqID)
+				// For every step count value
 				for stepCount := range stepCountCh {
-					json.NewEncoder(conn).Encode(types.Response{
+					select {
-						Value: stepCount,
+					case <-done[reqID]:
-					})
+						// Stop notifications if done signal received
+						cancel()
+						done.Remove(reqID)
+						return
+					default:
+						// Encode response to connection if no done signal received
+						json.NewEncoder(conn).Encode(types.Response{
+							Type:  req.Type,
+							ID:    reqID,
+							Value: stepCount,
+						})
+					}
 				}
 			}()
 		case types.ReqTypeFwVersion:
 			// Get firmware version from watch
 			version, err := dev.Version()
 			if err != nil {
-				connErr(conn, err, "Error getting battery level")
+				connErr(conn, req.Type, err, "Error getting firmware version")
 				break
 			}
 			// Encode version to connection
 			json.NewEncoder(conn).Encode(types.Response{
+				Type:  req.Type,
 				Value: version,
 			})
 		case types.ReqTypeBtAddress:
 			// Encode bluetooth address to connection
 			json.NewEncoder(conn).Encode(types.Response{
+				Type:  req.Type,
 				Value: dev.Address(),
 			})
 		case types.ReqTypeNotify:
 			// If no data, return error
 			if req.Data == nil {
-				connErr(conn, nil, "Data required for notify request")
+				connErr(conn, req.Type, nil, "Data required for notify request")
 				break
 			}
 			var reqData types.ReqDataNotify
 			// Decode data map to notify request data
 			err = mapstructure.Decode(req.Data, &reqData)
 			if err != nil {
-				connErr(conn, err, "Error decoding request data")
+				connErr(conn, req.Type, err, "Error decoding request data")
 				break
 			}
 			maps := viper.GetStringSlice("notifs.translit.use")
@@ -225,21 +313,21 @@ func handleConnection(conn net.Conn, dev *infinitime.Device) {
 			// Send notification to watch
 			err = dev.Notify(title, body)
 			if err != nil {
-				connErr(conn, err, "Error sending notification")
+				connErr(conn, req.Type, err, "Error sending notification")
 				break
 			}
 			// Encode empty types.Response to connection
-			json.NewEncoder(conn).Encode(types.Response{})
+			json.NewEncoder(conn).Encode(types.Response{Type: req.Type})
 		case types.ReqTypeSetTime:
 			// If no data, return error
 			if req.Data == nil {
-				connErr(conn, nil, "Data required for settime request")
+				connErr(conn, req.Type, nil, "Data required for settime request")
 				break
 			}
 			// Get string from data or return error
 			reqTimeStr, ok := req.Data.(string)
 			if !ok {
-				connErr(conn, nil, "Data for settime request must be RFC3339 formatted time string")
+				connErr(conn, req.Type, nil, "Data for settime request must be RFC3339 formatted time string")
 				break
 			}
 
@@ -250,29 +338,29 @@ func handleConnection(conn net.Conn, dev *infinitime.Device) {
 				// Parse time as RFC3339/ISO8601
 				reqTime, err = time.Parse(time.RFC3339, reqTimeStr)
 				if err != nil {
-					connErr(conn, err, "Invalid time format. Time string must be formatted as ISO8601 or the word `now`")
+					connErr(conn, req.Type, err, "Invalid time format. Time string must be formatted as ISO8601 or the word `now`")
 					break
 				}
 			}
 			// Set time on watch
 			err = dev.SetTime(reqTime)
 			if err != nil {
-				connErr(conn, err, "Error setting device time")
+				connErr(conn, req.Type, err, "Error setting device time")
 				break
 			}
 			// Encode empty types.Response to connection
-			json.NewEncoder(conn).Encode(types.Response{})
+			json.NewEncoder(conn).Encode(types.Response{Type: req.Type})
 		case types.ReqTypeFwUpgrade:
 			// If no data, return error
 			if req.Data == nil {
-				connErr(conn, nil, "Data required for firmware upgrade request")
+				connErr(conn, req.Type, nil, "Data required for firmware upgrade request")
 				break
 			}
 			var reqData types.ReqDataFwUpgrade
 			// Decode data map to firmware upgrade request data
 			err = mapstructure.Decode(req.Data, &reqData)
 			if err != nil {
-				connErr(conn, err, "Error decoding request data")
+				connErr(conn, req.Type, err, "Error decoding request data")
 				break
 			}
 			// Reset DFU to prepare for next update
@@ -281,40 +369,40 @@ func handleConnection(conn net.Conn, dev *infinitime.Device) {
 			case types.UpgradeTypeArchive:
 				// If less than one file, return error
 				if len(reqData.Files) < 1 {
-					connErr(conn, nil, "Archive upgrade requires one file with .zip extension")
+					connErr(conn, req.Type, nil, "Archive upgrade requires one file with .zip extension")
 					break
 				}
 				// If file is not zip archive, return error
 				if filepath.Ext(reqData.Files[0]) != ".zip" {
-					connErr(conn, nil, "Archive upgrade file must be a zip archive")
+					connErr(conn, req.Type, nil, "Archive upgrade file must be a zip archive")
 					break
 				}
 				// Load DFU archive
 				err := dev.DFU.LoadArchive(reqData.Files[0])
 				if err != nil {
-					connErr(conn, err, "Error loading archive file")
+					connErr(conn, req.Type, err, "Error loading archive file")
 					break
 				}
 			case types.UpgradeTypeFiles:
 				// If less than two files, return error
 				if len(reqData.Files) < 2 {
-					connErr(conn, nil, "Files upgrade requires two files. First with .dat and second with .bin extension.")
+					connErr(conn, req.Type, nil, "Files upgrade requires two files. First with .dat and second with .bin extension.")
 					break
 				}
 				// If first file is not init packet, return error
 				if filepath.Ext(reqData.Files[0]) != ".dat" {
-					connErr(conn, nil, "First file must be a .dat file")
+					connErr(conn, req.Type, nil, "First file must be a .dat file")
 					break
 				}
 				// If second file is not firmware image, return error
 				if filepath.Ext(reqData.Files[1]) != ".bin" {
-					connErr(conn, nil, "Second file must be a .bin file")
+					connErr(conn, req.Type, nil, "Second file must be a .bin file")
 					break
 				}
 				// Load individual DFU files
 				err := dev.DFU.LoadFiles(reqData.Files[0], reqData.Files[1])
 				if err != nil {
-					connErr(conn, err, "Error loading firmware files")
+					connErr(conn, req.Type, err, "Error loading firmware files")
 					break
 				}
 			}
@@ -326,9 +414,11 @@ func handleConnection(conn net.Conn, dev *infinitime.Device) {
 				for event := range progress {
 					// Encode event on connection
 					json.NewEncoder(conn).Encode(types.Response{
+						Type:  req.Type,
 						Value: event,
 					})
 				}
+				firmwareUpdating = false
 			}()
 
 			// Set firmwareUpdating
@@ -336,16 +426,30 @@ func handleConnection(conn net.Conn, dev *infinitime.Device) {
 			// Start DFU
 			err = dev.DFU.Start()
 			if err != nil {
-				connErr(conn, err, "Error performing upgrade")
+				connErr(conn, req.Type, err, "Error performing upgrade")
 				firmwareUpdating = false
 				break
 			}
 			firmwareUpdating = false
+		case types.ReqTypeCancel:
+			if req.Data == nil {
+				connErr(conn, req.Type, nil, "No data provided. Cancel request requires request ID string as data.")
+				continue
+			}
+			reqID, ok := req.Data.(string)
+			if !ok {
+				connErr(conn, req.Type, nil, "Invalid data. Cancel request required request ID string as data.")
+			}
+			// Stop notifications
+			done.Done(reqID)
+			json.NewEncoder(conn).Encode(types.Response{Type: req.Type})
+		default:
+			connErr(conn, req.Type, nil, fmt.Sprintf("Unknown request type %d", req.Type))
 		}
 	}
 }
 
-func connErr(conn net.Conn, err error, msg string) {
+func connErr(conn net.Conn, resType int, err error, msg string) {
 	var res types.Response
 	// If error exists, add to types.Response, otherwise don't
 	if err != nil {
@@ -353,7 +457,7 @@ func connErr(conn net.Conn, err error, msg string) {
 		res = types.Response{Message: fmt.Sprintf("%s: %s", msg, err)}
 	} else {
 		log.Error().Msg(msg)
-		res = types.Response{Message: msg}
+		res = types.Response{Message: msg, Type: resType}
 	}
 	res.Error = true