package cmd

import (
	"fmt"
	"os"

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

const VERSION string = "0.1"
const CONFIG_DIR string = "/.config/gitw"
const LOCAL_CONFIG_DIR string = "./.gitw"

var (
	version bool
	dry_run bool
	rootCmd = &cobra.Command{
		Use:   "gitw",
		Short: "Git issue and milestone integration for taskwarrior",
		Long: `Gitwarrior is a CLI tool to extend the taskwarrior tasks to synch issues and milestones.
Gitwarrior requires the following uda's to be defined: last_gitw_update(date), git_number(number), git_type(string), git_comment_ids(string).`,
	}
)

func Execute() error {
	return rootCmd.Execute()
}

func init() {
	cobra.OnInitialize(initConfig)
	// version flag
	rootCmd.Flags().BoolVarP(&version, "version", "v", false, "Print version of gitwarrior")
	rootCmd.Version = VERSION
}

func initConfig() {
	home := os.Getenv("HOME")
	viper.SetConfigName("config")
	viper.SetConfigType("yaml")
	viper.AddConfigPath(LOCAL_CONFIG_DIR)
	viper.AddConfigPath(home + CONFIG_DIR)
	viper.AutomaticEnv()
	if err := viper.ReadInConfig(); err != nil {
		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
			// config file not found, create starting configuration file for the user
			viper.Set("base_url", "<git-http-base-url>")
			viper.Set("user_name", "<git-user-name>")
			viper.Set("access_code", "<git-access-code>")
			// write default configuration in configuration directory inside of HOME directory
			if err = os.MkdirAll(home+CONFIG_DIR, os.ModePerm); err != nil {
				fmt.Fprintf(os.Stderr, "Could not create directories for configuration file: %s\nError: %s\n", home+CONFIG_DIR, err)
				os.Exit(-1)
			}
			if err = viper.SafeWriteConfigAs(home + CONFIG_DIR + "config.yaml"); err != nil {
				fmt.Fprintf(os.Stderr, "Failed to write starting configuration file: %s\n", err)
				os.Exit(-1)
			}
			fmt.Printf("Could not find configuration file in %s\nCreated starting configuration for you. Please enter the necessary values accordingly and try again.\n", home+CONFIG_DIR)
			os.Exit(2)
		} else {
			fmt.Fprintf(os.Stderr, "Failed to read configuration file: %s\n", err)
			os.Exit(-1)
		}
	}
}