package config

import (
	"log"
	"os"
)

type Config struct {
	Env            string
	Port           string
	DBName         string
	DBUser         string
	DBPassword     string
	DBPort         string
	DBHost         string
	UserContextKey string
	JWTSecret      string
}

func Load() *Config {
	cfg := &Config{
		Env:  getEnv("ENV", "production"),
		Port: getEnv("APP_PORT", "1009"),

		// ✅ STANDARDIZED DB ENV KEYS
		DBName:     getEnv("DB_NAME", ""),
		DBUser:     getEnv("DB_USER", ""),
		DBPassword: getEnv("DB_PASSWORD", ""),
		DBPort:     getEnv("DB_PORT", "5432"),
		DBHost:     getEnv("DB_HOST", "localhost"),

		UserContextKey: getEnv("USER_CONTEXT_KEY", "nearle"),
		JWTSecret:      getEnv("JWT_SECRET_KEY", ""),
	}

	// ✅ Correct validation
	if cfg.DBPassword == "" {
		log.Println("Warning: DB_PASSWORD is not set")
	}

	return cfg
}

func getEnv(key, fallback string) string {
	if v := os.Getenv(key); v != "" {
		return v
	}
	return fallback
}