package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"path/filepath"
	toml "github.com/pelletier/go-toml/v2"
)

type Config struct {
	Address string
	Port int
	//Age        int
	//Cats       []string
	//Pi         float64
	//Perfection []int
	//DOB        time.Time // requires `import time`
}


func get_config() (Config, error) {
	config := Config{
		Address: "127.0.0.1",
		Port: 32520,
	}
	// Find config path

	// Linux (XDG base directory specification compliant)
	xdg_config_home := os.Getenv("XDG_CONFIG_HOME")

	var config_dir string

	if xdg_config_home != "" {
		config_dir = filepath.Join(xdg_config_home, "ikinuki")
	} else {
		home := os.Getenv("HOME")
		config_dir = filepath.Join(home, ".config", "ikinuki")
	}

	err := os.MkdirAll(config_dir, 0755)
	if err != nil {
		return config, err
	}

	config_path := filepath.Join(config_dir, "server.toml")

	fmt.Printf("Config File Dir: %v\n", config_path)

	// open file, creating it if empty
	config_file, err := os.OpenFile(config_path, os.O_RDWR | os.O_CREATE, 0755)
	defer config_file.Close()

	if err != nil {
		return config, err
	}

	fi, err := config_file.Stat()
	if err != nil {
		return config, err
	}

	if fi.Size() == 0 {
		// if file is empty, write default config
		data, err := toml.Marshal(config)
		if err != nil {
			return config, err
		}
		config_file.Write(data)
		return config, nil
	} else {
		// try to parse config file
		data, err := ioutil.ReadAll(config_file)
		if err != nil {
			return config, err
		}
		err = toml.Unmarshal(data, &config)
		if err != nil {
			return config, err
		}
		return config, nil
	}

}

func main() {
	config, err := get_config()
	if err != nil {
		panic(err)
	}

	fmt.Printf("Config: %v\n", config)


}