/*
Copyright © 2023 Brian Buller <brian@bullercodeworks.com>

*/
package cmd

import (
	"fmt"
	"os"
	"os/exec"
	"sort"
	"strconv"
	"strings"

	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

// configCmd represents the config command
var configCmd = &cobra.Command{
	Use:   "config",
	Short: "Edit breaktime config using your default editor",
	RunE:  opConfig,
}

func init() {
	rootCmd.AddCommand(configCmd)
}

func opConfig(cmd *cobra.Command, args []string) error {
	updConfig := make(map[string]string)
	if len(args) == 1 && args[0] == "edit" {
		file := viper.ConfigFileUsed()
		editor := os.Getenv("EDITOR")
		if editor == "" {
			return fmt.Errorf("No EDITOR set")
		}
		fmt.Println("Starting", editor, file)
		c := exec.Command(editor, file)
		c.Stdin = os.Stdin
		c.Stdout = os.Stdout
		return c.Run()
	}
	if len(args) > 0 {
		// We're setting arguments
		for _, a := range args {
			pts := strings.Split(a, "=")
			if len(pts) == 2 {
				updConfig[pts[0]] = pts[1]
			} else {
				return fmt.Errorf("Unable to parse config values.")
			}
		}
	}
	var settings []string
	for k, v := range viper.AllSettings() {
		switch v.(type) {
		case bool:
			if nv, ok := updConfig[k]; ok {
				v = nv == "true"
				viper.Set(k, v)
				viper.WriteConfig()
			}
			settings = append(settings, fmt.Sprintf("%s: %t", k, v))
		case float64:
			if nv, ok := updConfig[k]; ok {
				var err error
				v, err = strconv.ParseFloat(nv, 64)
				if err != nil {
					return fmt.Errorf("Unable to parse float value")
				}
				viper.Set(k, v)
				viper.WriteConfig()
			}
			settings = append(settings, fmt.Sprintf("%s: %f", k, v))
		default:
			if nv, ok := updConfig[k]; ok {
				v = nv
				viper.Set(k, v)
				viper.WriteConfig()
			}
			settings = append(settings, fmt.Sprintf("%s: %s", k, v))
		}
	}
	sort.Strings(settings)
	fmt.Println("Configuration File:", viper.ConfigFileUsed())
	for _, v := range settings {
		fmt.Println(v)
	}
	return nil
}