package config

import (
	"os"

	"github.com/BurntSushi/toml"
)

// Config is the configuration for the application
// It defines how the TOML file should be structured
type Config struct {
	// The port to listen on
	Port int `toml:"port"`
	// The path to the SQLite database
	DbPath string `toml:"db_path"`
	// The username to use for the database
	DbUser string `toml:"db_user"`
	// The password to use for the database
	DbPass string `toml:"db_pass"`
	// The name of the database
	DbName string `toml:"db_name"`
}

// WriteConfigToFile writes a Config to a file
func WriteConfigToFile(c *Config, filename string) error {
	f, err := os.Create(filename)
	if err != nil {
		return err
	}
	defer f.Close()

	return toml.NewEncoder(f).Encode(c)
}

// ReadConfigFromFile reads a Config from a file
func ReadConfigFromFile(filename string) (*Config, error) {
	c := NewConfig()
	_, err := toml.DecodeFile(filename, c)
	if err != nil {
		return nil, err
	}

	return c, nil
}

// NewConfig returns a new Config
func NewConfig() *Config {
	return &Config{
		Port:   8080,
		DbPath: "./db.sqlite3",
		DbUser: "username",
		DbPass: "password",
		DbName: "ttime",
	}
}