package cmd

import (
	"axolotl/service"
	"fmt"
	"os"
	"strings"

	"github.com/spf13/cobra"
)

var jsonFlag bool
var cfg service.Config
var rootCmd = &cobra.Command{Use: "ax", Short: "The axolotl issue tracker"}

func Execute() {
	var err error
	cfg, err = service.LoadConfigFile()
	if err != nil {
		fmt.Fprintln(os.Stderr, "failed to load config:", err)
		os.Exit(1)
	}
	registerAliasCommands()
	rootCmd.SetArgs(transformArgs(os.Args[1:]))
	if err := rootCmd.Execute(); err != nil {
		os.Exit(1)
	}
}

func init() {
	rootCmd.PersistentFlags().BoolVar(&jsonFlag, "json", false, "")
}

func addPropertyFlags(cmd *cobra.Command) {
	cmd.Flags().String("type", "", "node type")
	cmd.Flags().String("status", "", "node status")
	cmd.Flags().String("prio", "", "node priority")
	cmd.Flags().String("namespace", "", "node namespace")
	cmd.Flags().String("assignee", "", "node assignee")
	cmd.Flags().String("mention", "", "node mention")
}

func registerAliasCommands() {
	rootCmd.AddGroup(&cobra.Group{ID: "aliases", Title: "Aliases:"})
	aliases, _ := cfg.ListAliases()
	for _, a := range aliases {
		rootCmd.AddCommand(&cobra.Command{
			Use:                a.Name,
			Short:              a.Description,
			GroupID:            "aliases",
			DisableFlagParsing: true,
			Run: func(ccmd *cobra.Command, args []string) {
				acmd := a.Command
				acmd = strings.ReplaceAll(acmd, "$me", cfg.GetUser())
				parts := strings.Fields(acmd)
				var expanded []string
				for _, part := range parts {
					if part == "$@" {
						expanded = append(expanded, args...)
						continue
					}
					hasCatchAll := strings.Contains(part, "$@")
					replaced := part
					if hasCatchAll {
						replaced = strings.ReplaceAll(replaced, "$@", strings.Join(args, " "))
					}
					for i := len(args) - 1; i >= 0; i-- {
						placeholder := fmt.Sprintf("$%d", i+1)
						replaced = strings.ReplaceAll(replaced, placeholder, args[i])
					}
					expanded = append(expanded, replaced)
				}
				rootCmd.SetArgs(transformArgs(expanded))
				if err := rootCmd.Execute(); err != nil {
					os.Exit(1)
				}
			},
		})
	}
}

func transformArgs(args []string) []string {
	tagAliases := map[string]string{
		"--status": "_status",
		"--prio":   "_prio",
		"--type":   "_type",
	}
	relAliases := map[string]string{
		"--namespace": "in_namespace",
		"--assignee":  "assignee",
		"--mention":   "mentions",
	}
	result := []string{}

	for i := 0; i < len(args); i++ {
		if idx := strings.Index(args[i], "="); idx != -1 {
			flag := args[i][:idx]
			val := args[i][idx+1:]
			if prop, ok := tagAliases[flag]; ok {
				result = append(result, "--tag", prop+"::"+val)
				continue
			}
			if prop, ok := relAliases[flag]; ok {
				result = append(result, "--rel", prop+":"+val)
				continue
			}
		}

		flag := args[i]
		if i+1 < len(args) {
			if prop, ok := tagAliases[flag]; ok {
				result = append(result, "--tag", prop+"::"+args[i+1])
				i++
				continue
			}
			if prop, ok := relAliases[flag]; ok {
				result = append(result, "--rel", prop+":"+args[i+1])
				i++
				continue
			}
		}
		result = append(result, args[i])
	}
	return result
}