package cmd

import (
	"fmt"
	"log"

	"github.com/Jaculabilis/intake/core"
	"github.com/spf13/cobra"
)

var channelListCmd = &cobra.Command{
	Use:     "list",
	Aliases: []string{"ls"},
	Short:   "List channels",
	Long: `List channels.
`,
	Run: func(cmd *cobra.Command, args []string) {
		channelList(stringArg(cmd, "channel"))
	},
}

func init() {
	channelCmd.AddCommand(channelListCmd)

	channelListCmd.Flags().StringP("channel", "c", "", "List sources in a specific channel")
}

func channelList(channel string) {
	db := openAndMigrateDb()

	channelSources, err := core.GetSourcesInChannel(db)
	if err != nil {
		log.Fatalf("error: failed to get sources in channel: %v", err)
	}

	if channel == "" {
		for channel := range channelSources {
			fmt.Println(channel)
		}
	} else {
		for _, source := range channelSources[channel] {
			fmt.Println(source)
		}
	}
}