package config

import (
	"time"

	"github.com/kelseyhightower/envconfig"
)

type Config struct {
	Port        int    `envconfig:"PORT" default:"8080"`
	DatabaseURL string `envconfig:"DATABASE_URL" required:"true"`

	// Firebase
	FirebaseCredentialsFile string `envconfig:"FIREBASE_CREDENTIALS_FILE" required:"true"`

	// JWT
	JWTSecret          string        `envconfig:"JWT_SECRET" required:"true"`
	JWTAccessDuration  time.Duration `envconfig:"JWT_ACCESS_DURATION" default:"15m"`
	JWTRefreshDuration time.Duration `envconfig:"JWT_REFRESH_DURATION" default:"720h"`

	// CORS
	AllowedOrigins []string `envconfig:"ALLOWED_ORIGINS" default:"http://localhost:3000"`

	// External APIs
	GeminiAPIKey  string `envconfig:"GEMINI_API_KEY" required:"true"`
	PexelsAPIKey  string `envconfig:"PEXELS_API_KEY" required:"true"`
}

func Load() (*Config, error) {
	var cfg Config
	if err := envconfig.Process("", &cfg); err != nil {
		return nil, err
	}
	return &cfg, nil
}