package config

import (
	"errors"
	"log"
	"os"

	"github.com/pelletier/go-toml"
)

type Config struct {
	Port string `toml:"port" comment:"The port to listen on for the server."`
	DemoDataPath string `toml:"demo_data_path" comment:"The path to the sql file to load for demo data."`
 
}

func defaultConfig() Config {
	return Config{Port: "8080", DemoDataPath: ""}
}


func LoadConfig(configPath string) Config {
	f, err := os.ReadFile(configPath)
	if err != nil {
		if errors.Is(err, os.ErrNotExist) {
			return initConfig(configPath)
		}
		log.Fatal(err)
	}
	var cfg Config
	err = toml.Unmarshal(f, &cfg)
	if err != nil {
		panic(err)
	}
	return cfg
}

func initConfig(configPath string) Config {
	cfg := defaultConfig()
	b, err := toml.Marshal(cfg)
	if err != nil {
		panic(err)
	}
	err = os.WriteFile(configPath, b, 0666)
	if err != nil {
		log.Fatal(err)
	}
	return cfg
}