package protocol

// ─── 认证 ────────────────────────────────────────────────────────────────────

type AuthQrResponse struct {
	State string `json:"state"`
	QrURL string `json:"qr_url"`
}

type AuthQrStatusResponse struct {
	Status string    `json:"status"` // pending | confirmed | expired
	Token  string    `json:"token,omitempty"`
	User   *UserInfo `json:"user,omitempty"`
}

type AuthWechatRequest struct {
	Code string `json:"code" binding:"required"`
}

type AuthTokenResponse struct {
	Token string   `json:"token"`
	User  UserInfo `json:"user"`
}

type UserInfo struct {
	UserID         string `json:"user_id"`
	NicknameMasked string `json:"nickname_masked"`
}

// ─── 用户与余额 ───────────────────────────────────────────────────────────────

// 账户状态：余额 > 0 → ok；余额 = 0 且试用未尽 → trial；皆尽 → quota。
const (
	AccountOK    = "ok"
	AccountTrial = "trial"
	AccountQuota = "quota"
)

type MeResponse struct {
	UserID          string `json:"user_id"`
	NicknameMasked  string `json:"nickname_masked"`
	BalanceSeconds  int64  `json:"balance_seconds"`
	TrialDailyLimit int    `json:"trial_daily_limit"`
	TrialUsedToday  int    `json:"trial_used_today"`
	AccountState    string `json:"account_state"` // ok | trial | quota
}

// ─── 时长包与订单 ─────────────────────────────────────────────────────────────

type Pack struct {
	ID         string `json:"id"`
	Minutes    int    `json:"minutes"`
	PriceCents int    `json:"price_cents"`
	UnitDesc   string `json:"unit_desc"`
	Tag        string `json:"tag,omitempty"`
}

type PacksResponse struct {
	Packs []Pack `json:"packs"`
}

const (
	PayChannelNative = "native" // 桌面扫码
	PayChannelApp    = "app"    // 移动收银台
)

type CreateOrderRequest struct {
	PackID  string `json:"pack_id" binding:"required"`
	Channel string `json:"channel" binding:"required"` // native | app
}

type CreateOrderResponse struct {
	OrderID   string         `json:"order_id"`
	CodeURL   string         `json:"code_url,omitempty"`   // native
	PayParams map[string]any `json:"pay_params,omitempty"` // app
}

type OrderStatusResponse struct {
	Status         string `json:"status"` // pending | paid | closed
	BalanceSeconds int64  `json:"balance_seconds,omitempty"`
}

// ─── 反馈（v1.1）──────────────────────────────────────────────────────────────

const (
	FeedbackMaxImages     = 3
	FeedbackMaxImageBytes = 5 << 20 // 5MB
	FeedbackMaxContentLen = 1000
	FeedbackDailyLimit    = 10
)

type FeedbackResponse struct {
	FeedbackID string `json:"feedback_id"`
}

// ─── 打点（v1.1）──────────────────────────────────────────────────────────────

const (
	MetricsMaxBatch     = 100
	MetricsMaxPropBytes = 2048
)

type MetricEvent struct {
	Event    string         `json:"event"`
	Props    map[string]any `json:"props,omitempty"`
	ClientTs int64          `json:"client_ts"`
}

type MetricsBatchRequest struct {
	DeviceID   string        `json:"device_id" binding:"required"`
	Platform   string        `json:"platform" binding:"required"` // mac | win | ios | android
	AppVersion string        `json:"app_version"`
	OSVersion  string        `json:"os_version"`
	Events     []MetricEvent `json:"events" binding:"required"`
}

// MetricWhitelist 事件白名单：未知事件名直接丢弃（见前端文档 9.1 指标清单）。
var MetricWhitelist = map[string]bool{
	"asr.first_partial_ms":      true,
	"asr.release_to_commit_ms":  true,
	"audio.start_ms":            true,
	"ws.connect_ms":             true,
	"ws.reconnect":              true,
	"asr.session":               true,
	"inject.fail":               true,
	"onboarding.step":           true,
	"login.success":             true,
	"purchase.success":          true,
	"kb.enabled":                true,
}

// ─── 应用更新 ─────────────────────────────────────────────────────────────────

type AppLatestResponse struct {
	Version string `json:"version"`
	Notes   string `json:"notes,omitempty"`
	URL     string `json:"url"`
	Force   bool   `json:"force"`
}