package cmd

import (
	"fmt"
	"log"
	"sort"

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

var crontabCmd = &cobra.Command{
	Use:   "crontab",
	Short: "Update crontab entries",
	Long: `Update crontab entries.

A source's cron job is defined by its INTAKE_CRON environment variable.
`,
	Run: func(cmd *cobra.Command, args []string) {
		crontab(boolArg(cmd, "list"))
	},
}

func init() {
	rootCmd.AddCommand(crontabCmd)

	crontabCmd.Flags().BoolP("list", "l", false, "List crontab entries")
}

func crontab(list bool) {
	db := openAndMigrateDb()

	specs, err := core.GetCronSources(db)
	if err != nil {
		log.Fatalf("error: failed to get crontab sources: %v", err)
	}
	if list {
		var sources []string
		for source := range specs {
			sources = append(sources, source)
		}
		sort.Strings(sources)
		for _, source := range sources {
			fmt.Println(specs[source])
		}
	} else {
		if err := core.UpdateCrontab(db, specs); err != nil {
			log.Fatalf("error: failed to update crontab: %v", err)
		}
	}
}