// Copyright (C) 2023-2024  Umorpha Systems
// SPDX-License-Identifier: AGPL-3.0-or-later

package main

import (
	"context"
	"fmt"
	"os"

	"github.com/datawire/ocibuild/pkg/cliutil"
	"github.com/spf13/cobra"

	"git.mothstuff.lol/lukeshu/eclipse/lib/apikeys"
)

func main() {
	argparser := &cobra.Command{
		Use:   os.Args[0] + " {[flags]|SUBCOMMAND...}",
		Short: "Generate API keys",

		Args: cliutil.WrapPositionalArgs(cliutil.OnlySubcommands),
		RunE: cliutil.RunSubcommands,

		SilenceErrors: true, // we'll handle this ourselves after .ExecuteContext()
		SilenceUsage:  true, // FlagErrorFunc will handle this

		CompletionOptions: cobra.CompletionOptions{
			DisableDefaultCmd: true,
		},
	}
	argparser.SetFlagErrorFunc(cliutil.FlagErrorFunc)
	argparser.SetHelpTemplate(cliutil.HelpTemplate)

	argparser.AddCommand(&cobra.Command{
		Use:  "leader [flags] OUT_PUB_FILE OUT_PRIV_FILE",
		Args: cliutil.WrapPositionalArgs(cobra.ExactArgs(2)),
		RunE: func(_ *cobra.Command, args []string) error {
			pubFilename := args[0]
			privFilename := args[1]

			pub, priv, err := apikeys.GenerateLeaderKeys()
			if err != nil {
				return err
			}
			if err := apikeys.WriteLeaderPubKey(pubFilename, pub); err != nil {
				return err
			}
			if err := apikeys.WriteLeaderPrivKey(privFilename, priv); err != nil {
				return err
			}
			return nil
		},
	})

	argparser.AddCommand(&cobra.Command{
		Use:  "follower [flags] IN_PRIV_FILE OUT_APIKEY_FILE",
		Args: cliutil.WrapPositionalArgs(cobra.ExactArgs(2)),
		RunE: func(_ *cobra.Command, args []string) error {
			inPrivKeyFilename := args[0]
			outAPIKeyFilename := args[1]

			privKey, err := apikeys.LoadLeaderPrivKey(inPrivKeyFilename)
			if err != nil {
				return err
			}
			apikey, err := apikeys.GenerateAPIKey(privKey)
			if err != nil {
				return err
			}
			return os.WriteFile(outAPIKeyFilename, []byte(apikey+"\n"), 0400)
		},
	})

	ctx := context.Background()
	if err := argparser.ExecuteContext(ctx); err != nil {
		fmt.Fprintf(os.Stderr, "%v: error: %v\n", argparser.CommandPath(), err)
		os.Exit(1)
	}
}