package cmd

import (
	"encoding/json"
	"errors"
	"gitea.com/gpm/gpm/modules/config"
	"gitea.com/jolheiser/beaver"
	"github.com/urfave/cli/v2"
	"io/ioutil"
)

var Import = cli.Command{
	Name:  "import",
	Usage: "Import JSON for local packages",
	Flags: []cli.Flag{
		&cli.BoolFlag{
			Name:    "force",
			Aliases: []string{"f"},
			Usage:   "Overwrite any existing packages without prompt",
		},
	},
	Action: doImport,
}

func doImport(ctx *cli.Context) error {
	files := ctx.Args().Slice()
	if len(files) == 0 {
		return errors.New("must provide a list of JSON files to import from")
	}

	for _, file := range files {
		body, err := ioutil.ReadFile(file)
		if err != nil {
			beaver.Error(err)
			continue
		}

		var cfg config.Config
		if err := json.Unmarshal(body, &cfg); err != nil {
			beaver.Error(err)
			continue
		}
		config.AddPackages(ctx.Bool("force"), cfg.Packages...)
	}

	if err := config.Save(); err != nil {
		return err
	}

	beaver.Info("Import complete")
	return nil
}