package config

import (
    "fmt"
    "os"
)

type Config struct {
    Port       string
    DatabaseURL string
}

func Load() *Config {
    port := getEnv("PORT", "8080")
    
    // Формируем DSN для PostgreSQL из переменных окружения
    databaseURL := getPostgresDSN()
    
    return &Config{
        Port:       port,
        DatabaseURL: databaseURL,
    }
}

func getPostgresDSN() string {
    host := getEnv("DB_HOST", "localhost")
    port := getEnv("DB_PORT", "5432")
    user := getEnv("DB_USER", "postgres")
    password := getEnv("DB_PASSWORD", "postgres")
    dbname := getEnv("DB_NAME", "bb_db")
    sslmode := getEnv("DB_SSLMODE", "disable")

    return fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=%s",
        host, port, user, password, dbname, sslmode)
}

func getEnv(key, defaultValue string) string {
    value := os.Getenv(key)
    if value == "" {
        return defaultValue
    }
    return value
}