From 4e87c77ccbcc3d57218b1d88add31a388686a4d7 Mon Sep 17 00:00:00 2001
From: Hazel Noack <hazel@webcontact.de>
Date: Wed, 16 Jul 2025 12:31:51 +0200
Subject: [PATCH] implemented start server

---
 internal/rendering/diyhrt.go | 28 +++++++++++++++++++++
 internal/server/embed.go     | 42 +++++++++++++++++++++++++++++++
 internal/server/server.go    | 48 ++++++++++++++++++++++++++++++++++++
 3 files changed, 118 insertions(+)
 create mode 100644 internal/rendering/diyhrt.go
 create mode 100644 internal/server/embed.go
 create mode 100644 internal/server/server.go

diff --git a/internal/rendering/diyhrt.go b/internal/rendering/diyhrt.go
new file mode 100644
index 0000000..9c94aac
--- /dev/null
+++ b/internal/rendering/diyhrt.go
@@ -0,0 +1,28 @@
+package rendering
+
+import (
+	"maps"
+	"slices"
+
+	"gitea.elara.ws/Hazel/transfem-startpage/internal/diyhrt"
+)
+
+func (c *Config) LoadDiyHrt(listings []diyhrt.Listing) {
+	existingStores := make(map[int]diyhrt.Store)
+
+	for _, listing := range listings {
+		existingStores[listing.Store.Id] = listing.Store
+	}
+
+	c.Template.Listings = c.DiyHrt.ListingFilter.Filter(listings)
+	c.Template.Stores = c.DiyHrt.StoreFilter.Filter(slices.Collect(maps.Values(existingStores)))
+}
+
+func (c *Config) FetchDiyHrt() error {
+	l, err := diyhrt.GetListings(c.DiyHrt.ApiKey)
+	if err != nil {
+		return err
+	}
+	c.LoadDiyHrt(l)
+	return nil
+}
diff --git a/internal/server/embed.go b/internal/server/embed.go
new file mode 100644
index 0000000..a1dfc13
--- /dev/null
+++ b/internal/server/embed.go
@@ -0,0 +1,42 @@
+package server
+
+import (
+	"bytes"
+	"embed"
+	"io/fs"
+	"log"
+	"net/http"
+	"text/template"
+
+	"github.com/labstack/echo/v4"
+)
+
+var FrontendFiles embed.FS
+
+func getFileContent() string {
+	content, err := FrontendFiles.ReadFile("frontend/index.html")
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return string(content)
+}
+
+func getIndex(c echo.Context) error {
+	IndexTemplate := template.Must(template.New("index").Parse(getFileContent()))
+
+	var tpl bytes.Buffer
+	IndexTemplate.Execute(&tpl, Config.Template)
+
+	return c.HTML(http.StatusOK, tpl.String())
+}
+
+func getFileSystem() http.FileSystem {
+	fsys, err := fs.Sub(FrontendFiles, "frontend")
+	if err != nil {
+		panic(err)
+	}
+
+	return http.FS(fsys)
+}
diff --git a/internal/server/server.go b/internal/server/server.go
new file mode 100644
index 0000000..f5b333e
--- /dev/null
+++ b/internal/server/server.go
@@ -0,0 +1,48 @@
+package server
+
+import (
+	"log"
+	"net/http"
+	"strconv"
+
+	"gitea.elara.ws/Hazel/transfem-startpage/internal/rendering"
+	"github.com/labstack/echo/v4"
+)
+
+var Config = rendering.NewConfig()
+
+func Start(profile string) error {
+	err := Config.ScanForConfigFile(profile)
+	if err != nil {
+		return err
+	}
+
+	err = Config.Init()
+	if err != nil {
+		return err
+	}
+
+	err = Config.FetchDiyHrt()
+	if err != nil {
+		log.Println(err)
+	}
+
+	e := echo.New()
+
+	// statically serve the file
+	cacheDir, err := rendering.GetCacheDir()
+	if err == nil {
+		e.Static("/cache", cacheDir)
+	} else {
+		log.Println("didn't enable cache dir", err)
+	}
+
+	// https://echo.labstack.com/docs/cookbook/embed-resources
+	staticHandler := http.FileServer(getFileSystem())
+	e.GET("/assets/*", echo.WrapHandler(http.StripPrefix("/", staticHandler)))
+	e.GET("/scripts/*", echo.WrapHandler(http.StripPrefix("/", staticHandler)))
+	e.GET("/", getIndex)
+
+	e.Logger.Fatal(e.Start(":" + strconv.Itoa(Config.Server.Port)))
+	return nil
+}