package config

import (
	"fmt"
	"strconv"
)

type DatabaseConfig struct {
	Host     string
	Port     int
	Name     string
	User     string
	Password string
}

func loadDatabase() (DatabaseConfig, error) {
	port, err := strconv.Atoi(getEnv("DATABASE_PORT", "3306"))
	if err != nil {
		return DatabaseConfig{}, fmt.Errorf("invalid DATABASE_PORT: %w", err)
	}
	return DatabaseConfig{
		Host:     getEnv("DATABASE_HOST", ""),
		Port:     port,
		Name:     getEnv("DATABASE_NAME", "audio"),
		User:     getEnv("DATABASE_USER", "root"),
		Password: getEnv("DATABASE_PASSWORD", ""),
	}, nil
}

func (d DatabaseConfig) validate() error {
	if d.Host == "" {
		return fmt.Errorf("database host is required")
	}
	if d.Name == "" {
		return fmt.Errorf("database name is required")
	}
	if d.User == "" {
		return fmt.Errorf("database user is required")
	}
	return nil
}