package cmd

import (
	"context"
	"fmt"
	"log/slog"
	"maps"
	"os"
	"slices"
	"strings"

	"git.bissendorf.co/bissendorf/unifood/m/v2/core/output"
	"git.bissendorf.co/bissendorf/unifood/m/v2/core/services/jlog"
	"github.com/spf13/cobra"
)

var rootCmd = &cobra.Command{
	Use:   "unifood",
	Short: "Unifood is a CLI for retrieving restaurant information",
	Long:  ``,
	Run: func(cmd *cobra.Command, args []string) {
		_ = cmd.Help()
	},
}

func Execute() {
	initRootCmd()

	if err := rootCmd.Execute(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}

func initRootCmd() {
	var appConfig AppConfig

	// Compile list of available formatters
	formatters := slices.AppendSeq([]string{}, maps.Keys(output.Formatters))
	formattersList := fmt.Sprintf("(available: %s)", strings.Join(formatters, ", "))

	// Add persistent flags
	rootCmd.PersistentFlags().BoolVarP(&appConfig.OutputVerbose, "verbose", "v", false, "Enable verbose output")
	rootCmd.PersistentFlags().StringVarP(&appConfig.OutputFormatter, "output", "o", "table", "Set output format "+formattersList)
	rootCmd.PersistentFlags().BoolVar(&appConfig.OutputOrderReverse, "reverse", false, "Reverses output item order")
	rootCmd.PersistentFlags().BoolVar(&appConfig.PrintConfig, "print-config", false, "Enable printing the application config")

	// Add flag completions
	rootCmd.RegisterFlagCompletionFunc("output", cobra.FixedCompletions(formatters, cobra.ShellCompDirectiveNoFileComp))

	// Create logger and add child commands
	logger := jlog.New(slog.LevelDebug)
	ctx := jlog.ContextWith(context.Background(), logger)

	rootCmd.AddCommand(&versionCmd)
	rootCmd.AddCommand(getVerbs(ctx, &appConfig)...)
}