package cmd

import (
	"envy/cmd/utils"
	"fmt"
	"os"
	"path"

	"github.com/charmbracelet/huh"
	"github.com/spf13/cobra"
)

// switchCmd represents the switch command
var switchCmd = &cobra.Command{
	Use:   "switch",
	Short: "Replace the current environment with another one",
	Run: func(cmd *cobra.Command, args []string) {
		var env = ""
		if len(args) > 0 {
			env = args[0]
		}

		envy, err := utils.GetEnvy()
		utils.StopIfErr(err)

		project, err := utils.GetKey(envy, "envy.project")
		utils.StopIfErr(err)

		current, err := utils.GetKey(envy, "envy.current")
		utils.StopIfErr(err)

		dbProject, err := utils.GetProject(project)
		utils.StopIfErr(err)

		if env != "" {
			_, err := utils.GetEnvironment(dbProject.ID, env)
			utils.StopIfErr(err)
		} else {
			envs, err := utils.GetEnvironments(dbProject.ID)
			utils.StopIfErr(err)

			if len(envs) == 2 {
				for _, en := range envs {
					if en.Name != current {
						env = en.Name
					}
				}
			} else {
				form := huh.NewForm(
					huh.NewGroup(
						huh.NewSelect[string]().
							Title("Select environment").
							Description("Select an environment to switch to").
							OptionsFunc(func() []huh.Option[string] {
								var options []huh.Option[string]
								for _, en := range envs {
									options = append(options, huh.NewOption(en.Name, en.Name))
								}
								return options
							}, &env).
							Value(&env),
					),
				)

				err = form.Run()
				utils.StopIfErr(err)
				if env == "" {
					return
				}
			}
		}

		envs, err := utils.GetEnvironments(dbProject.ID)
		utils.StopIfErr(err)

		var selectedEnv utils.Environment
		for _, en := range envs {
			if en.Name == env {
				selectedEnv = en
			}
		}

		cwd, err := os.Getwd()
		utils.StopIfErr(err)
		os.WriteFile(path.Join(cwd, ".env"), []byte(selectedEnv.Data), 0744)

		envy.Set("envy.current", env)
		err = utils.WriteEnvy(envy)
		utils.StopIfErr(err)

		fmt.Printf("Switched to environment %v.\n", env)
	},
}

func init() {
	rootCmd.AddCommand(switchCmd)

	// Here you will define your flags and configuration settings.

	// Cobra supports Persistent Flags which will work for this command
	// and all subcommands, e.g.:
	// switchCmd.PersistentFlags().String("foo", "", "A help for foo")

	// Cobra supports local flags which will only run when this command
	// is called directly, e.g.:
	// switchCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}