model

type Connection struct {
	IP       string `json:"ip"`
	LastSeen int64  `json:"last_seen"`
	Count    int64  `json:"count"`
}

type DailyPoint struct {
	Day  string `json:"day"` // YYYY-MM-DD (UTC)
	Up   int64  `json:"up"`
	Down int64  `json:"down"`
}

type PaymentOrder struct {
	ID         int64  `json:"id"`
	UserID     int64  `json:"user_id"`
	UserName   string `json:"user_name,omitempty"`
	PlanID     int64  `json:"plan_id"`
	PlanName   string `json:"plan_name,omitempty"`
	AmountRub  int    `json:"amount_rub"`
	Status     string `json:"status"`                // pending | paid | cancelled
	Provider   string `json:"provider"`              // "" (manual) | yookassa | cryptobot
	ProviderID string `json:"provider_id,omitempty"` // external payment/invoice id (admin-only view)
	PayURL     string `json:"pay_url,omitempty"`     // hosted payment URL for the user
	CreatedAt  int64  `json:"created_at"`
	PaidAt     int64  `json:"paid_at"`
}

type ProxyEndpoint struct {
	Protocol string
	Address  string
	Port     int
	User     string
	Pass     string
}

type RoutingConfig struct {
	BlockBittorrent bool     `json:"block_bittorrent"`
	BlockAds        bool     `json:"block_ads"` // block geosite:category-ads-all
	BlockIPs        []string `json:"block_ips"` // CIDRs or geoip:xx
	BlockDomains    []string `json:"block_domains"`
	WarpDomains     []string `json:"warp_domains"`  // routed through Cloudflare WARP
	WarpIPs         []string `json:"warp_ips"`      // CIDRs or geoip:xx, via WARP
	OperaDomains    []string `json:"opera_domains"` // routed through Opera VPN
	OperaIPs        []string `json:"opera_ips"`     // CIDRs or geoip:xx, via Opera VPN
	DirectDomains   []string `json:"direct_domains"`
	DirectIPs       []string `json:"direct_ips"`

	// RoutingOrder is the precedence of the egress lanes (a permutation of
	// "direct"/"proxy"/"warp"); first-match-wins. The LAST lane is the catch-all
	// ("everything else") — its specific rules are subsumed by a final rule.
	RoutingOrder []string `json:"routing_order"`

	// Outbound proxy pool: traffic matching ProxyDomains/ProxyIPs is load-balanced
	// across the proxies fetched from ProxyURLs (each a list, one proxy per line)
	// plus the ProxyManual entries.
	ProxyURLs    []string `json:"proxy_urls"`
	ProxyManual  []string `json:"proxy_manual"`
	ProxyDomains []string `json:"proxy_domains"`
	ProxyIPs     []string `json:"proxy_ips"`

	// ProxyRefreshMinutes is how often the URL-sourced proxy list is re-fetched.
	// 0 means the default (30 min) — kept so configs saved before this was
	// selectable keep auto-refreshing; a negative value means "never".
	ProxyRefreshMinutes int `json:"proxy_refresh_minutes"`
}

type Settings struct {
	ID              int64     `json:"-"`
	Host            string    `json:"host"`     // public domain or IP used in share links
	SNI             string    `json:"sni"`      // TLS server name (link + cert SAN)
	TLSMode         string    `json:"tls_mode"` // always "acme"
	ACMEEmail       string    `json:"acme_email"`
	ACMEProvider    string    `json:"acme_provider"` // "letsencrypt" | "zerossl"
	ZeroSSLEABKID   string    `json:"-"`             // ZeroSSL External Account Binding KID
	ZeroSSLEABHMAC  string    `json:"-"`             // ZeroSSL EAB HMAC key (base64url)
	CertPath        string    `json:"cert_path"`
	KeyPath         string    `json:"key_path"`
	VLESSPort       int       `json:"vless_port"`
	ConfigRevision  int64     `json:"config_revision"`
	LastConfigError string    `json:"last_config_error"`
	UpdatedAt       time.Time `json:"updated_at"`
	PanelSecretPath string    `json:"-"` // never serialized to clients
	// Branding: custom panel display name + colour theme (empty ⇒ defaults). A
	// custom logo lives as a file under <dataDir>/branding/, not here.
	PanelName     string `json:"-"`
	PanelTheme    string `json:"-"` // JSON {accent,text,muted,bg,surface}, empty ⇒ defaults
	DecoyTemplate string `json:"decoy_template"`
	WSPath        string `json:"-"` // Trojan-WS path matched by VLESS fallbacks
	TrojanPort    int    `json:"-"` // loopback Trojan inbound port
	HysteriaPort  int    `json:"hysteria_port"`
	HopStart      int    `json:"hop_start"`
	HopEnd        int    `json:"hop_end"`
	// HopInterval is the port-hopping rotation interval in seconds ("min-max"),
	// embedded in the Hysteria2 share link's quicParams.
	HopInterval string `json:"-"`

	// Per-protocol toggles for the Connections panel. A disabled protocol drops
	// out of user subscriptions/share links and its clients are removed from the
	// Xray inbound (the listener stays up but rejects everyone).
	VLESSEnabled    bool `json:"-"`
	TrojanEnabled   bool `json:"-"`
	HysteriaEnabled bool `json:"-"`

	// VLESS + gRPC + REALITY inbound (separate port). REALITY borrows the TLS of a
	// real site (RealityDest) instead of our cert. Keys/shortId/serviceName are
	// generated by the panel; the public key + shortId go into share links.
	RealityEnabled     bool   `json:"-"`
	RealityPort        int    `json:"-"`
	RealityDest        string `json:"-"` // target site / SNI(s), e.g. "max.ru"
	RealityPrivateKey  string `json:"-"` // X25519 private (base64 raw-url)
	RealityPublicKey   string `json:"-"` // X25519 public (base64 raw-url), in links (pbk)
	RealityShortID     string `json:"-"` // hex shortId, in links (sid)
	RealityServiceName string `json:"-"` // gRPC service name

	// Proxy mode: a socks/http forward-proxy inbound so other RosPanel servers can
	// chain their egress through this one (point their proxy pool at host:port).
	ProxyModeEnabled bool   `json:"-"`
	ProxyModeType    string `json:"-"` // "socks" | "http"
	ProxyModePort    int    `json:"-"`
	ProxyModeUser    string `json:"-"`
	ProxyModePass    string `json:"-"`

	// First-run wizard state. SetupDone gates the wizard; Timezone is the IANA
	// zone anchoring the local-day boundary for stats (empty ⇒ server local).
	SetupDone bool   `json:"-"`
	Timezone  string `json:"-"`

	// Subscription delivery settings (Settings → Подписки).
	SubPath           string `json:"-"` // public subscription URL prefix /<sub_path>/<token>
	SubBase64         bool   `json:"-"` // base64-encode the universal link list
	SubNameInTitle    bool   `json:"-"` // append the user name to Profile-Title / group name
	SubTitle          string `json:"-"` // profile title base (empty ⇒ «РосПанель»)
	SubRouting        bool   `json:"-"` // attach auto-routing headers
	SubRoutingHapp    string `json:"-"` // Happ routing config URL
	SubRoutingIncy    string `json:"-"` // INCY routing config URL
	SubRoutingMihomo  string `json:"-"` // Mihomo (Clash Meta) routing config URL
	SubUpdateInterval int    `json:"-"` // subscription auto-update interval (hours)

	XrayDNS string `json:"-"` // upstream DNS servers for Xray (newline/comma separated)

	// Per-connection uTLS fingerprint embedded in share links (fp=). Hysteria2
	// (QUIC) has none.
	VLESSFp   string `json:"-"`
	TrojanFp  string `json:"-"`
	RealityFp string `json:"-"`

	// Anti-DPI / anti-censorship transport hardening (Settings → Подключения).
	// TLSFragment / BlockQUIC shape the GENERATED client configs (sing-box only —
	// no server change); TLSMin13 / RealityMaxTimeDiff / RealityDestPort change the
	// SERVER inbound config.
	TLSFragment        bool `json:"-"` // sing-box ClientHello fragmentation (Vision + Trojan-WS)
	TLSMin13           bool `json:"-"` // require TLS 1.3 on the :443 inbound
	BlockQUIC          bool `json:"-"` // drop untunneled browser QUIC (UDP/443) in client configs
	RealityMaxTimeDiff int  `json:"-"` // REALITY anti-replay window in ms (0 = off)

	// Opera VPN egress: the opera-proxy helper binary exposes a local HTTP proxy
	// (127.0.0.1:OperaPort) we add as the "opera" routing lane. Country is the
	// Opera VPN region (EU|AS|AM).
	OperaEnabled bool   `json:"-"`
	OperaCountry string `json:"-"`
	OperaPort    int    `json:"-"`

	// Cloudflare WARP outbound (WireGuard). When enabled and registered, routing
	// rules with action "warp" egress through it.
	WarpEnabled    bool   `json:"-"`
	WarpPrivateKey string `json:"-"` // our WG secret key (base64)
	WarpPublicKey  string `json:"-"` // Cloudflare's WG public key (base64)
	WarpEndpoint   string `json:"-"` // host:port of the WARP peer
	WarpAddressV4  string `json:"-"` // assigned interface IPv4
	WarpAddressV6  string `json:"-"` // assigned interface IPv6
	WarpReserved   string `json:"-"` // client id as "a,b,c"

	// Telegram bot (Settings → Telegram). An authorized admin chat can view/add/
	// remove users via the bot, and scheduled backups are pushed to it. TGChatIDs
	// is the comma-separated set of authorized chats; TGLinkCode is the pending
	// one-time code an admin sends as "/start <code>" to link their chat.
	TGBotEnabled bool   `json:"-"`
	TGBotToken   string `json:"-"`
	TGChatIDs    string `json:"-"` // comma-separated authorized chat IDs
	TGLinkCode   string `json:"-"` // pending one-time linking code (cleared once used)
	TGBackupCron string `json:"-"` // 5-field cron (operator TZ) for scheduled backups; empty = off

	// Separate public user bot (Settings → Telegram): VPN clients self-register and
	// self-serve their subscription. Must use a different token than the admin bot.
	TGUserBotEnabled bool   `json:"-"`
	TGUserBotToken   string `json:"-"`
	TGUserRegEnabled bool   `json:"-"` // allow /start self-registration (creates a new VPN account)

	// Billing (Settings → Оплата): plans, trial period, free-tier fallback.
	BillingEnabled     bool   `json:"-"`
	BillingTrialDays   int    `json:"-"`
	BillingFreePlanID  int64  `json:"-"`
	BillingTrialPlanID int64  `json:"-"`
	BillingPaymentNote string `json:"-"`

	// Payment providers (Settings → Оплата). Secret key / token are stored
	// encrypted at rest. PaymentWebhookSecret is a random URL segment for the
	// provider webhook path so it's unguessable yet fixed.
	YooKassaEnabled      bool   `json:"-"`
	YooKassaShopID       string `json:"-"`
	YooKassaSecretKey    string `json:"-"`
	YooKassaTest         bool   `json:"-"` // using a YooKassa test shop
	CryptoBotEnabled     bool   `json:"-"`
	CryptoBotToken       string `json:"-"`
	CryptoBotTestnet     bool   `json:"-"` // use the CryptoBot testnet endpoint
	PaymentWebhookSecret string `json:"-"`

	Routing RoutingConfig `json:"-"` // structured routing config (Settings → Роутинг)

	// Computed per request (NOT stored). When the active cert isn't CA-trusted (a
	// self-signed fallback), TLSInsecure is set and TLSPinSHA256 carries the hex
	// SHA-256 of that cert so Xray links can pin it (pinnedPeerCertSha256) — clients
	// then trust this exact cert. sing-box/clash use TLSInsecure (skip verify).
	TLSInsecure  bool   `json:"-"`
	TLSPinSHA256 string `json:"-"`
}

type TariffPlan struct {
	ID          int64  `json:"id"`
	Slug        string `json:"slug"`
	Name        string `json:"name"`
	PriceRub    int    `json:"price_rub"`
	PeriodDays  int    `json:"period_days"`
	DataLimit   int64  `json:"data_limit"`
	DeviceLimit int    `json:"device_limit"`
	IsFree      bool   `json:"is_free"`
	PaymentURL  string `json:"payment_url"`
	SortOrder   int    `json:"sort_order"`
	Enabled     bool   `json:"enabled"`
}

type User struct {
	ID        int64     `json:"id"`
	Name      string    `json:"name"`
	UUID      string    `json:"uuid"`       // VLESS
	Password  string    `json:"-"`          // Trojan + Hysteria2 (shared); embedded in links only
	SubToken  string    `json:"-"`          // subscription capability token
	Status    string    `json:"status"`     // active | disabled | expired | limited | device_limited
	Enabled   bool      `json:"enabled"`    // manual on/off toggle (independent of Status)
	DataLimit int64     `json:"data_limit"` // bytes, 0 = unlimited
	ExpireAt  int64     `json:"expire_at"`  // unix seconds, 0 = never
	UsedUp    int64     `json:"used_up"`
	UsedDown  int64     `json:"used_down"`
	LastUp    int64     `json:"-"` // last raw Xray uplink counter
	LastDown  int64     `json:"-"` // last raw Xray downlink counter
	CreatedAt time.Time `json:"created_at"`

	ResetPeriod string `json:"reset_period"` // none | daily | weekly | monthly | yearly
	LastResetAt int64  `json:"-"`            // unix of the last automatic quota reset
	LastSeen    int64  `json:"last_seen"`    // unix of last activity (0 = never); 0 ⇒ offline

	DeviceLimit   int `json:"device_limit"`   // max concurrent devices (unique IPs), 0 = unlimited
	ActiveDevices int `json:"active_devices"` // computed: distinct IPs seen within DeviceOnlineWindow

	TgChatID int64 `json:"tg_chat_id"` // linked Telegram chat for the user bot (0 = not linked)

	TgLinkCode   string `json:"-"` // pending one-time Telegram bind code (replaces sub-token deep links)
	TgLinkCodeAt int64  `json:"-"` // unix when TgLinkCode was issued (0 = none)

	PlanID    int64  `json:"plan_id"`             // active tariff (0 = manual limits)
	TrialUsed bool   `json:"trial_used"`          // trial period already consumed
	PlanName  string `json:"plan_name,omitempty"` // computed for API views (not stored)
}

type UserTotal struct {
	UserID int64  `json:"user_id"`
	Name   string `json:"name"`
	Up     int64  `json:"up"`
	Down   int64  `json:"down"`
}