/*
 * LURE - Linux User REpository
 * Copyright (C) 2023 Elara 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 main

import (
	"fmt"
	"os"

	"github.com/urfave/cli/v2"
	"lure.sh/lure/internal/cliutils"
	"lure.sh/lure/internal/config"
	"lure.sh/lure/internal/overrides"
	"lure.sh/lure/pkg/distro"
	"lure.sh/lure/pkg/loggerctx"
	"lure.sh/lure/pkg/repos"
	"gopkg.in/yaml.v3"
)

var infoCmd = &cli.Command{
	Name:  "info",
	Usage: "Print information about a package",
	Flags: []cli.Flag{
		&cli.BoolFlag{
			Name:    "all",
			Aliases: []string{"a"},
			Usage:   "Show all information, not just for the current distro",
		},
	},
	Action: func(c *cli.Context) error {
		ctx := c.Context
		log := loggerctx.From(ctx)

		args := c.Args()
		if args.Len() < 1 {
			log.Fatalf("Command info expected at least 1 argument, got %d", args.Len()).Send()
		}

		err := repos.Pull(ctx, config.Config(ctx).Repos)
		if err != nil {
			log.Fatal("Error pulling repositories").Err(err).Send()
		}

		found, _, err := repos.FindPkgs(ctx, args.Slice())
		if err != nil {
			log.Fatal("Error finding packages").Err(err).Send()
		}

		if len(found) == 0 {
			os.Exit(1)
		}

		pkgs := cliutils.FlattenPkgs(ctx, found, "show", c.Bool("interactive"))

		var names []string
		all := c.Bool("all")

		if !all {
			info, err := distro.ParseOSRelease(ctx)
			if err != nil {
				log.Fatal("Error parsing os-release file").Err(err).Send()
			}
			names, err = overrides.Resolve(
				info,
				overrides.DefaultOpts.
					WithLanguages([]string{config.SystemLang()}),
			)
			if err != nil {
				log.Fatal("Error resolving overrides").Err(err).Send()
			}
		}

		for _, pkg := range pkgs {
			if !all {
				err = yaml.NewEncoder(os.Stdout).Encode(overrides.ResolvePackage(&pkg, names))
				if err != nil {
					log.Fatal("Error encoding script variables").Err(err).Send()
				}
			} else {
				err = yaml.NewEncoder(os.Stdout).Encode(pkg)
				if err != nil {
					log.Fatal("Error encoding script variables").Err(err).Send()
				}
			}

			fmt.Println("---")
		}

		return nil
	},
}