config

type AdminConfig struct {
	PasswordHash string `yaml:"password_hash"` // bcrypt hash，支持 ${ENV_VAR}
}

type CProxyAuth struct {
	TokenDir         string        `yaml:"token_dir"`         // 默认 DefaultTokenDir()
	AutoRefresh      bool          `yaml:"auto_refresh"`      // 默认 true
	RefreshThreshold time.Duration `yaml:"refresh_threshold"` // 默认 30m
}

type CProxyConfig struct {
	Listen ListenConfig `yaml:"listen"`
	SProxy SProxySect   `yaml:"sproxy"`
	Auth   CProxyAuth   `yaml:"auth"`
	Log    LogConfig    `yaml:"log"`
}

type ClusterConfig struct {
	Role                string        `yaml:"role"`                  // "primary" | "worker"
	Primary             string        `yaml:"primary"`               // worker 用：sp-1 的地址
	SelfAddr            string        `yaml:"self_addr"`             // 本节点对外地址
	SelfWeight          int           `yaml:"self_weight"`           // 建议权重，默认 50
	AlertThreshold      int           `yaml:"alert_threshold"`       // active_req 超过此值触发告警，默认 80
	AlertWebhook        string        `yaml:"alert_webhook"`         // 可选 Webhook URL
	ReportInterval      time.Duration `yaml:"report_interval"`       // worker 用量上报间隔，默认 30s
	PeerMonitorInterval time.Duration `yaml:"peer_monitor_interval"` // primary 监控 peer 间隔，默认 30s
}

type DashboardConfig struct {
	Enabled bool `yaml:"enabled"` // 默认 true（primary 节点）
}

type DatabaseConfig struct {
	Path            string        `yaml:"path"`              // SQLite 文件路径
	WriteBufferSize int           `yaml:"write_buffer_size"` // 批量写入 buffer 大小，默认 200
	FlushInterval   time.Duration `yaml:"flush_interval"`    // 强制 flush 间隔，默认 5s
}

type LLMConfig struct {
	LBStrategy     string        `yaml:"lb_strategy"`     // "round_robin"
	RequestTimeout time.Duration `yaml:"request_timeout"` // 默认 300s
	Targets        []LLMTarget   `yaml:"targets"`
}

type LLMTarget struct {
	URL    string `yaml:"url"`     // e.g. "https://api.anthropic.com"
	APIKey string `yaml:"api_key"` // 支持 ${ENV_VAR} 替换
	Weight int    `yaml:"weight"`  // 默认 1
}

type ListenConfig struct {
	Host string `yaml:"host"` // 默认 "127.0.0.1"（c-proxy）/ "0.0.0.0"（s-proxy）
	Port int    `yaml:"port"` // c-proxy 默认 8080，s-proxy 默认 9000
}

type LogConfig struct {
	Level string `yaml:"level"` // "debug" | "info" | "warn" | "error"，默认 "info"
}

type ModelPrice struct {
	InputPer1K  float64 `yaml:"input_per_1k"`  // USD per 1K input tokens
	OutputPer1K float64 `yaml:"output_per_1k"` // USD per 1K output tokens
}

type PricingConfig struct {
	// Models 按模型名称自定义定价（key = 完整模型名）
	Models map[string]ModelPrice `yaml:"models"`
	// 未匹配模型的默认定价（USD per 1000 tokens）
	DefaultInputPer1K  float64 `yaml:"default_input_per_1k"`
	DefaultOutputPer1K float64 `yaml:"default_output_per_1k"`
}

type SProxyAuth struct {
	JWTSecret       string        `yaml:"jwt_secret"`        // 支持 ${ENV_VAR}
	AccessTokenTTL  time.Duration `yaml:"access_token_ttl"`  // 默认 24h
	RefreshTokenTTL time.Duration `yaml:"refresh_token_ttl"` // 默认 168h (7d)
}

type SProxyFullConfig struct {
	Listen    ListenConfig    `yaml:"listen"`
	LLM       LLMConfig       `yaml:"llm"`
	Database  DatabaseConfig  `yaml:"database"`
	Auth      SProxyAuth      `yaml:"auth"`
	Admin     AdminConfig     `yaml:"admin"`
	Cluster   ClusterConfig   `yaml:"cluster"`
	Dashboard DashboardConfig `yaml:"dashboard"`
	Pricing   PricingConfig   `yaml:"pricing"`
	Log       LogConfig       `yaml:"log"`
}

type SProxySect struct {
	Primary             string        `yaml:"primary"`               // 初始 sp-1 地址（种子节点）
	LBStrategy          string        `yaml:"lb_strategy"`           // 当前固定 "weighted_random"
	HealthCheckInterval time.Duration `yaml:"health_check_interval"` // 默认 30s
	RequestTimeout      time.Duration `yaml:"request_timeout"`       // 默认 300s
}