package cmd

import (
	"log"
	"os"

	cli "github.com/jawher/mow.cli"
	"bitmask.me/skeleton/internal/app"
	"bitmask.me/skeleton/internal/database"
	"bitmask.me/skeleton/internal/web"
)

// Execute is the main entrypoint for this program
func Execute() {
	var ac = app.New(app.ConfigFromEnv())

	root := cli.App("skeleton", "")

	root.Command("web server", "run a web server", func(cmd *cli.Cmd) {
		cmd.Spec = "[ --http ]"

		var (
			listenAddr = cmd.StringOpt("l addr http", ":8080", "Listen address")
		)

		cmd.Action = func() {
			log.Printf("Web Server listening on %s", *listenAddr)
			web.RunServer(ac, *listenAddr)
		}
	})

	root.Command("migrate", "alter the database schema", func(cmd *cli.Cmd) {
		cmd.Spec = "--up | --revision | --drop-all"

		var (
			_    = cmd.BoolOpt("u up", false, "migrate to most recent revision")
			drop = cmd.BoolOpt("drop-all", false, "USE WITH CARE: Completely devestate the database, use --revision=0 instead")
			rev  = cmd.IntOpt("r revision", database.MigrateUp, "revision that should be migrated to, defaults to most recent")
		)

		cmd.Action = func() {
			db := ac.Database()

			if *drop {
				*rev = database.MigrateDrop
			}

			if err := database.Migrate(db, ac.Files, *rev); err != nil {
				log.Fatalf("Migration failed due to error: %s", err)
			}
		}

	})
	root.Run(os.Args)
}