package config

import (
	"log"
	"os"

	"github.com/joho/godotenv"
)

type Config struct {
	DatabaseURL    string
	JWTSecret      string
	EncryptionKey  string
	GithubClientID string
	GithubSecret   string
}

func Load() *Config {
	err := godotenv.Load()
	if err != nil {
		log.Println("No .env file found, using environment variables")
	}

	return &Config{
		DatabaseURL:    getEnv("DATABASE_URL", ""),
		JWTSecret:      getEnv("JWT_SECRET", ""),
		EncryptionKey:  getEnv("ENCRYPTION_KEY", ""),
		GithubClientID: getEnv("GITHUB_CLIENT_ID", ""),
		GithubSecret:   getEnv("GITHUB_SECRET", ""),
	}
}

func getEnv(key, fallback string) string {
	if value, ok := os.LookupEnv(key); ok {
		return value
	}
	if fallback == "" {
		log.Fatalf("FATAL: Environment variable %s is not set.", key)
	}
	return fallback
}