Initial commit

internal/config/config.go

@@ -0,0 +1,90 @@
+package config
+
+import (
+	"strings"
+
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	Server   ServerConfig
+	Database DatabaseConfig
+	Redis    RedisConfig
+	JWT      JWTConfig
+	Google   GoogleConfig
+	Email    EmailConfig
+	AWS      AWSConfig
+}
+
+type ServerConfig struct {
+	Port string `mapstructure:"port"`
+	Mode string `mapstructure:"mode"` // e.g., "debug", "release"
+}
+
+type DatabaseConfig struct {
+	DSN string
+}
+
+type RedisConfig struct {
+	Addr     string
+	Password string
+	DB       int
+}
+
+type JWTConfig struct {
+	Secret string
+}
+
+type GoogleConfig struct {
+	ClientID     string `mapstructure:"client_id"`
+	ClientSecret string `mapstructure:"client_secret"`
+	RedirectURL  string `mapstructure:"redirect_url"`
+}
+
+type EmailConfig struct {
+	From string
+	// Add SMTP settings here later
+}
+
+type AWSConfig struct {
+	Region         string
+	Bucket         string
+	AccessKey      string
+	SecretKey      string
+	Endpoint       string // Optional: for MinIO or other S3 compatible
+	ForcePathStyle bool
+}
+
+func LoadConfig() (*Config, error) {
+	v := viper.New()
+
+	// Set defaults
+	v.SetDefault("server.port", "8080")
+	v.SetDefault("server.mode", "debug")
+	v.SetDefault("redis.db", 0)
+
+	// Environment variable settings
+	v.SetEnvPrefix("APP")
+	v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
+	v.AutomaticEnv()
+
+	// Config file settings (optional)
+	v.SetConfigName("config")
+	v.SetConfigType("yaml")
+	v.AddConfigPath(".")
+	v.AddConfigPath("./config")
+
+	if err := v.ReadInConfig(); err != nil {
+		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
+			return nil, err
+		}
+		// Config file not found is fine, we rely on env vars or defaults
+	}
+
+	var cfg Config
+	if err := v.Unmarshal(&cfg); err != nil {
+		return nil, err
+	}
+
+	return &cfg, nil
+}