small fix, don't worry about it

backend/internal/config/config.go

@@ -0,0 +1,194 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/joho/godotenv"
+)
+
+type Config struct {
+	Env      string
+	AppName  string
+	HTTP     HTTPConfig
+	CORS     CORSConfig
+	Postgres PostgresConfig
+	Cache    CacheConfig
+	Auth     AuthConfig
+	TMDB     TMDBConfig
+	IGDB     IGDBConfig
+}
+
+type HTTPConfig struct {
+	Host         string
+	Port         int
+	ReadTimeout  time.Duration
+	WriteTimeout time.Duration
+}
+
+type CORSConfig struct {
+	AllowedOrigins   []string
+	AllowedMethods   []string
+	AllowedHeaders   []string
+	ExposedHeaders   []string
+	AllowCredentials bool
+	MaxAge           time.Duration
+}
+
+type PostgresConfig struct {
+	URL      string
+	MaxConns int32
+	MinConns int32
+}
+
+type CacheConfig struct {
+	Addr     string
+	Password string
+	DB       int
+}
+
+type AuthConfig struct {
+	AccessTokenTTLMinutes int
+	RefreshTokenTTLHours  int
+	JWTSecret             string
+}
+
+type TMDBConfig struct {
+	APIKey  string
+	BaseURL string
+}
+
+type IGDBConfig struct {
+	ClientID     string
+	ClientSecret string
+	BaseURL      string
+	TokenURL     string
+}
+
+func Load() Config {
+	_ = godotenv.Load()
+
+	return Config{
+		Env:     getString("SEEN_ENV", "development"),
+		AppName: getString("SEEN_APP_NAME", "seen"),
+		HTTP: HTTPConfig{
+			Host:         getString("SEEN_HTTP_HOST", "0.0.0.0"),
+			Port:         getInt("SEEN_HTTP_PORT", 8081),
+			ReadTimeout:  getDuration("SEEN_HTTP_READ_TIMEOUT", 15*time.Second),
+			WriteTimeout: getDuration("SEEN_HTTP_WRITE_TIMEOUT", 15*time.Second),
+		},
+		CORS: CORSConfig{
+			AllowedOrigins:   getCSV("SEEN_CORS_ALLOWED_ORIGINS", []string{}),
+			AllowedMethods:   getCSV("SEEN_CORS_ALLOWED_METHODS", []string{"GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"}),
+			AllowedHeaders:   getCSV("SEEN_CORS_ALLOWED_HEADERS", []string{"Accept", "Authorization", "Content-Type", "X-Request-ID"}),
+			ExposedHeaders:   getCSV("SEEN_CORS_EXPOSED_HEADERS", []string{"X-Request-ID"}),
+			AllowCredentials: getBool("SEEN_CORS_ALLOW_CREDENTIALS", false),
+			MaxAge:           getDuration("SEEN_CORS_MAX_AGE", 24*time.Hour),
+		},
+		Postgres: PostgresConfig{
+			URL:      getString("SEEN_POSTGRES_URL", "postgres://seen:seen@localhost:5432/seen?sslmode=disable"),
+			MaxConns: int32(getInt("SEEN_POSTGRES_MAX_CONNS", 10)),
+			MinConns: int32(getInt("SEEN_POSTGRES_MIN_CONNS", 2)),
+		},
+		Cache: CacheConfig{
+			Addr:     getString("SEEN_CACHE_ADDR", "localhost:6379"),
+			Password: getString("SEEN_CACHE_PASSWORD", ""),
+			DB:       getInt("SEEN_CACHE_DB", 0),
+		},
+		Auth: AuthConfig{
+			AccessTokenTTLMinutes: getInt("SEEN_AUTH_ACCESS_TOKEN_TTL_MINUTES", 30),
+			RefreshTokenTTLHours:  getInt("SEEN_AUTH_REFRESH_TOKEN_TTL_HOURS", 24*30),
+			JWTSecret:             getString("SEEN_AUTH_JWT_SECRET", "replace-in-production"),
+		},
+		TMDB: TMDBConfig{
+			APIKey:  getString("SEEN_TMDB_API_KEY", ""),
+			BaseURL: getString("SEEN_TMDB_BASE_URL", "https://api.themoviedb.org/3"),
+		},
+		IGDB: IGDBConfig{
+			ClientID:     getString("SEEN_IGDB_CLIENT_ID", ""),
+			ClientSecret: getString("SEEN_IGDB_CLIENT_SECRET", ""),
+			BaseURL:      getString("SEEN_IGDB_BASE_URL", "https://api.igdb.com/v4"),
+			TokenURL:     getString("SEEN_IGDB_TOKEN_URL", "https://id.twitch.tv/oauth2/token"),
+		},
+	}
+}
+
+func (c HTTPConfig) Addr() string {
+	return fmt.Sprintf("%s:%d", c.Host, c.Port)
+}
+
+func getString(key string, fallback string) string {
+	if value, ok := os.LookupEnv(key); ok {
+		return value
+	}
+	return fallback
+}
+
+func getInt(key string, fallback int) int {
+	value, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+
+	parsed, err := strconv.Atoi(value)
+	if err != nil {
+		return fallback
+	}
+	return parsed
+}
+
+func getDuration(key string, fallback time.Duration) time.Duration {
+	value, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+
+	parsed, err := time.ParseDuration(value)
+	if err != nil {
+		return fallback
+	}
+	return parsed
+}
+
+func getBool(key string, fallback bool) bool {
+	value, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case "1", "true", "yes", "on":
+		return true
+	case "0", "false", "no", "off":
+		return false
+	default:
+		return fallback
+	}
+}
+
+func getCSV(key string, fallback []string) []string {
+	value, ok := os.LookupEnv(key)
+	if !ok {
+		return slices.Clone(fallback)
+	}
+
+	parts := strings.Split(value, ",")
+	items := make([]string, 0, len(parts))
+	for _, part := range parts {
+		trimmed := strings.TrimSpace(part)
+		if trimmed == "" {
+			continue
+		}
+		items = append(items, trimmed)
+	}
+
+	if len(items) == 0 {
+		return slices.Clone(fallback)
+	}
+
+	return items
+}