config

type CORSConfig struct {
	Enabled        bool        `yaml:"enabled" env:"CORS_ENABLED" default:"true"`
	AllowedOrigins StringSlice `yaml:"allowed_origins" env:"CORS_ORIGINS"` // 空表示允许所有，支持数组或逗号分隔字符串
	AllowedMethods StringSlice `yaml:"allowed_methods" env:"CORS_METHODS" default:"GET,POST,PUT,DELETE,PATCH,OPTIONS"`
	AllowedHeaders StringSlice `` /* 153-byte string literal not displayed */
	MaxAge         Duration    `yaml:"max_age" env:"CORS_MAX_AGE" default:"12h"`
}

type CircuitBreakerConfig struct {
	Enabled     bool     `yaml:"enabled" env:"CIRCUIT_BREAKER_ENABLED" default:"false"`
	MaxRequests uint32   `yaml:"max_requests" env:"CIRCUIT_BREAKER_MAX_REQUESTS" default:"3"`
	Interval    Duration `yaml:"interval" env:"CIRCUIT_BREAKER_INTERVAL" default:"60s"`
	Timeout     Duration `yaml:"timeout" env:"CIRCUIT_BREAKER_TIMEOUT" default:"30s"`
}

type Duration time.Duration

type FeaturesConfig struct {
	Metrics        MetricsConfig        `yaml:"metrics"`
	RateLimit      RateLimitConfig      `yaml:"rate_limit"`
	Tracing        TracingConfig        `yaml:"tracing"`
	CORS           CORSConfig           `yaml:"cors"`
	Timeout        TimeoutConfig        `yaml:"timeout"`
	SizeLimit      SizeLimitConfig      `yaml:"size_limit"`
	JWT            JWTConfig            `yaml:"jwt"`
	CircuitBreaker CircuitBreakerConfig `yaml:"circuit_breaker"`
}

type JWTConfig struct {
	Enabled    bool     `yaml:"enabled" env:"JWT_ENABLED" default:"false"`
	SecretKey  string   `yaml:"secret_key" env:"JWT_SECRET_KEY"` // 当 enabled=true 时必填
	Expiration Duration `yaml:"expiration" env:"JWT_EXPIRATION" default:"24h"`
	Issuer     string   `yaml:"issuer" env:"JWT_ISSUER" default:"ai-api-market"`
}

type LoadResult struct {
	Registry interface{} // 配置注册表（通常是 *shared.ConfigRegistry）
}

type LoaderConfig struct {
	ConfigDir string
	EnvPrefix string
	Flags     []string
}

type LoaderOption func(*LoaderConfig)

type MessageQueueConfig struct {
	// Type 消息队列类型
	Type MessageQueueType `yaml:"type" env:"MESSAGE_QUEUE_TYPE" default:"none"`
	// Kafka Kafka 配置（当 type=kafka 时）
	// 使用 interface{} 避免循环依赖，实际类型为 *messagequeue.KafkaConfig
	Kafka interface{} `yaml:"kafka,omitempty"`
	// RabbitMQ RabbitMQ 配置（当 type=rabbitmq 时）
	// 使用 interface{} 避免循环依赖，实际类型为 *messagequeue.RabbitMQConfig
	RabbitMQ interface{} `yaml:"rabbitmq,omitempty"`
}

type MessageQueueType string

type MetricsConfig struct {
	Enabled bool `yaml:"enabled" env:"METRICS_ENABLED" default:"true"`
}

type RateLimitConfig struct {
	Enabled bool    `yaml:"enabled" env:"RATE_LIMIT_ENABLED" default:"true"`
	Rate    float64 `yaml:"rate" env:"RATE_LIMIT_RATE" default:"10"`          // 每秒请求数
	Burst   int     `yaml:"burst" env:"RATE_LIMIT_BURST" default:"20"`        // 突发请求数
	Storage string  `yaml:"storage" env:"RATE_LIMIT_STORAGE" default:"local"` // 存储类型：local（本地）或 redis（分布式）
}

type ServerFeaturesConfig struct {
	Metrics        MetricsConfig        `yaml:"metrics"`
	Tracing        TracingConfig        `yaml:"tracing"`
	CircuitBreaker CircuitBreakerConfig `yaml:"circuit_breaker"`
}

type SetFieldFunc func(module, fieldPath, value string) error

type SizeLimitConfig struct {
	Enabled    bool   `yaml:"enabled" env:"SIZE_LIMIT_ENABLED" default:"true"`
	MaxSize    int64  `yaml:"max_size" env:"REQUEST_MAX_SIZE" default:"10485760"`     // 默认 10MB (10 * 1024 * 1024)
	MaxSizeStr string `yaml:"max_size_str" env:"REQUEST_MAX_SIZE_STR" default:"10MB"` // 人类可读格式，如 "10MB", "1GB"
}

type StringSlice []string

type TimeoutConfig struct {
	Enabled bool     `yaml:"enabled" env:"TIMEOUT_ENABLED" default:"true"`
	Timeout Duration `yaml:"timeout" env:"REQUEST_TIMEOUT" default:"30s"`
}

type TracingConfig struct {
	Enabled        bool    `yaml:"enabled" env:"TRACING_ENABLED" default:"false"`
	ServiceName    string  `yaml:"service_name" env:"TRACING_SERVICE_NAME" default:"ai-api-market"`
	ServiceVersion string  `yaml:"service_version" env:"TRACING_SERVICE_VERSION" default:"1.0.0"`
	Environment    string  `yaml:"environment" env:"TRACING_ENVIRONMENT" default:"development"`
	OTLEndpoint    string  `yaml:"otlp_endpoint" env:"OTLP_ENDPOINT" default:"http://localhost:4318/v1/traces"` // OTLP HTTP endpoint (Jaeger 从 v1.35.0 开始支持)
	SampleRate     float64 `yaml:"sample_rate" env:"TRACING_SAMPLE_RATE" default:"1.0"`                         // 采样率 0.0-1.0
}