package app

// ---------------------------------------------------------------------
// структуры
// ---------------------------------------------------------------------

// EN: Shared DTO/model definitions exchanged between HTTP handlers, workers,
// EN: SSE stream, and internal orchestration logic.
// RU: Общие DTO/модели, которыми обмениваются HTTP-обработчики, воркеры,
// RU: SSE-поток и внутренняя оркестрация.

type Status struct {
	Timestamp   string `json:"timestamp"`
	IPCount     int    `json:"ip_count"`
	DomainCount int    `json:"domain_count"`
	Iface       string `json:"iface"`
	Table       string `json:"table"`
	Mark        string `json:"mark"`

	PolicyRouteOK *bool `json:"policy_route_ok,omitempty"`
	RouteOK       *bool `json:"route_ok,omitempty"`
}

type cmdResult struct {
	OK       bool   `json:"ok"`
	Message  string `json:"message,omitempty"`
	ExitCode int    `json:"exitCode,omitempty"`
	Stdout   string `json:"stdout,omitempty"`
	Stderr   string `json:"stderr,omitempty"`
}

type VPNLoginState struct {
	State string `json:"state"`
	Email string `json:"email,omitempty"`
	Msg   string `json:"msg,omitempty"`

	// для GUI
	Text  string `json:"text,omitempty"`
	Color string `json:"color,omitempty"`
}

type DNSUpstreams struct {
	Default1 string `json:"default1"`
	Default2 string `json:"default2"`
	Meta1    string `json:"meta1"`
	Meta2    string `json:"meta2"`
}

type DNSResolverMode string

const (
	DNSModeDirect         DNSResolverMode = "direct"
	DNSModeSmartDNS       DNSResolverMode = "smartdns"
	DNSModeHybridWildcard DNSResolverMode = "hybrid_wildcard"
)

type DNSMode struct {
	ViaSmartDNS  bool            `json:"via_smartdns"`
	SmartDNSAddr string          `json:"smartdns_addr"`
	Mode         DNSResolverMode `json:"mode"`
}

type DNSStatusResponse struct {
	ViaSmartDNS     bool            `json:"via_smartdns"`
	SmartDNSAddr    string          `json:"smartdns_addr"`
	Mode            DNSResolverMode `json:"mode"`
	UnitState       string          `json:"unit_state"`
	RuntimeNftset   bool            `json:"runtime_nftset"`
	WildcardSource  string          `json:"wildcard_source"`
	RuntimeCfgPath  string          `json:"runtime_config_path,omitempty"`
	RuntimeCfgError string          `json:"runtime_config_error,omitempty"`
}

type DNSModeRequest struct {
	ViaSmartDNS  bool            `json:"via_smartdns"`
	SmartDNSAddr string          `json:"smartdns_addr"`
	Mode         DNSResolverMode `json:"mode"`
}

type SmartDNSRuntimeStatusResponse struct {
	Enabled        bool   `json:"enabled"`
	AppliedEnable  bool   `json:"applied_enabled"`
	WildcardSource string `json:"wildcard_source"`
	UnitState      string `json:"unit_state"`
	ConfigPath     string `json:"config_path"`
	Changed        bool   `json:"changed,omitempty"`
	Restarted      bool   `json:"restarted,omitempty"`
	Message        string `json:"message,omitempty"`
}

type SmartDNSRuntimeRequest struct {
	Enabled *bool `json:"enabled"`
	Restart *bool `json:"restart,omitempty"`
}

type TrafficMode string

const (
	TrafficModeSelective  TrafficMode = "selective"
	TrafficModeFullTunnel TrafficMode = "full_tunnel"
	TrafficModeDirect     TrafficMode = "direct"
)

type TrafficModeState struct {
	Mode               TrafficMode `json:"mode"`
	PreferredIface     string      `json:"preferred_iface,omitempty"`
	AutoLocalBypass    bool        `json:"auto_local_bypass"`
	ForceVPNSubnets    []string    `json:"force_vpn_subnets,omitempty"`
	ForceVPNUIDs       []string    `json:"force_vpn_uids,omitempty"`
	ForceVPNCGroups    []string    `json:"force_vpn_cgroups,omitempty"`
	ForceDirectSubnets []string    `json:"force_direct_subnets,omitempty"`
	ForceDirectUIDs    []string    `json:"force_direct_uids,omitempty"`
	ForceDirectCGroups []string    `json:"force_direct_cgroups,omitempty"`
	UpdatedAt          string      `json:"updated_at,omitempty"`
}

type TrafficModeRequest struct {
	Mode               TrafficMode `json:"mode"`
	PreferredIface     *string     `json:"preferred_iface,omitempty"`
	AutoLocalBypass    *bool       `json:"auto_local_bypass,omitempty"`
	ForceVPNSubnets    *[]string   `json:"force_vpn_subnets,omitempty"`
	ForceVPNUIDs       *[]string   `json:"force_vpn_uids,omitempty"`
	ForceVPNCGroups    *[]string   `json:"force_vpn_cgroups,omitempty"`
	ForceDirectSubnets *[]string   `json:"force_direct_subnets,omitempty"`
	ForceDirectUIDs    *[]string   `json:"force_direct_uids,omitempty"`
	ForceDirectCGroups *[]string   `json:"force_direct_cgroups,omitempty"`
}

type TrafficModeStatusResponse struct {
	Mode               TrafficMode `json:"mode"`
	DesiredMode        TrafficMode `json:"desired_mode"`
	AppliedMode        TrafficMode `json:"applied_mode"`
	PreferredIface     string      `json:"preferred_iface,omitempty"`
	AutoLocalBypass    bool        `json:"auto_local_bypass"`
	BypassCandidates   int         `json:"bypass_candidates"`
	ForceVPNSubnets    []string    `json:"force_vpn_subnets,omitempty"`
	ForceVPNUIDs       []string    `json:"force_vpn_uids,omitempty"`
	ForceVPNCGroups    []string    `json:"force_vpn_cgroups,omitempty"`
	ForceDirectSubnets []string    `json:"force_direct_subnets,omitempty"`
	ForceDirectUIDs    []string    `json:"force_direct_uids,omitempty"`
	ForceDirectCGroups []string    `json:"force_direct_cgroups,omitempty"`
	OverridesApplied   int         `json:"overrides_applied"`
	CgroupResolvedUIDs int         `json:"cgroup_resolved_uids"`
	CgroupWarning      string      `json:"cgroup_warning,omitempty"`
	ActiveIface        string      `json:"active_iface,omitempty"`
	IfaceReason        string      `json:"iface_reason,omitempty"`
	RuleMark           bool        `json:"rule_mark"`
	RuleFull           bool        `json:"rule_full"`
	TableDefault       bool        `json:"table_default"`
	ProbeOK            bool        `json:"probe_ok"`
	ProbeMessage       string      `json:"probe_message,omitempty"`
	Healthy            bool        `json:"healthy"`
	Message            string      `json:"message,omitempty"`
}

type TrafficCandidateSubnet struct {
	CIDR     string `json:"cidr"`
	Dev      string `json:"dev,omitempty"`
	Kind     string `json:"kind,omitempty"` // lan|docker|link
	LinkDown bool   `json:"linkdown,omitempty"`
}

type TrafficCandidateUnit struct {
	Unit        string `json:"unit"`
	Description string `json:"description,omitempty"`
	Cgroup      string `json:"cgroup,omitempty"`
}

type TrafficCandidateUID struct {
	UID      int      `json:"uid"`
	User     string   `json:"user,omitempty"`
	Examples []string `json:"examples,omitempty"`
}

type TrafficCandidatesResponse struct {
	GeneratedAt string                   `json:"generated_at"`
	Subnets     []TrafficCandidateSubnet `json:"subnets,omitempty"`
	Units       []TrafficCandidateUnit   `json:"units,omitempty"`
	UIDs        []TrafficCandidateUID    `json:"uids,omitempty"`
}
type TrafficInterfacesResponse struct {
	Interfaces     []string `json:"interfaces"`
	PreferredIface string   `json:"preferred_iface,omitempty"`
	ActiveIface    string   `json:"active_iface,omitempty"`
	IfaceReason    string   `json:"iface_reason,omitempty"`
}

// ---------------------------------------------------------------------
// traffic app marks (per-app routing via cgroup -> fwmark)
// ---------------------------------------------------------------------

type TrafficAppMarksOp string

const (
	TrafficAppMarksAdd   TrafficAppMarksOp = "add"
	TrafficAppMarksDel   TrafficAppMarksOp = "del"
	TrafficAppMarksClear TrafficAppMarksOp = "clear"
)

// EN: Runtime app marking request. Used by per-app launcher wrappers.
// RU: Runtime app marking запрос. Используется wrapper-лаунчером per-app.
type TrafficAppMarksRequest struct {
	Op         TrafficAppMarksOp `json:"op"`
	Target     string            `json:"target"` // vpn|direct
	Cgroup     string            `json:"cgroup,omitempty"`
	TimeoutSec int               `json:"timeout_sec,omitempty"` // only for add
}

type TrafficAppMarksResponse struct {
	OK         bool   `json:"ok"`
	Message    string `json:"message,omitempty"`
	Op         string `json:"op,omitempty"`
	Target     string `json:"target,omitempty"`
	Cgroup     string `json:"cgroup,omitempty"`
	CgroupID   uint64 `json:"cgroup_id,omitempty"`
	TimeoutSec int    `json:"timeout_sec,omitempty"`
}

type TrafficAppMarksStatusResponse struct {
	VPNCount    int    `json:"vpn_count"`
	DirectCount int    `json:"direct_count"`
	Message     string `json:"message,omitempty"`
}

type SystemdState struct {
	State string `json:"state"`
}

// ---------------------------------------------------------------------
// события / SSE
// ---------------------------------------------------------------------

type Event struct {
	ID   int64       `json:"id"`
	Kind string      `json:"kind"`
	Ts   string      `json:"ts"`
	Data interface{} `json:"data,omitempty"`
}

// EN: Callback for streaming user-visible progress from long-running nft updates.
// RU: Колбэк для отправки прогресса длительных nft-операций в пользовательский интерфейс.
type ProgressCallback func(percent int, message string)

// ---------------------------------------------------------------------
// resolver модели
// ---------------------------------------------------------------------

// EN: Input contract for the Go-based domain resolver job.
// RU: Контракт входных параметров для Go-резолвера доменов.
type ResolverOpts struct {
	DomainsPath   string
	MetaPath      string
	StaticPath    string
	CachePath     string
	PtrCachePath  string
	TraceLog      string
	TTL           int
	Workers       int
	DNSConfigPath string

	ViaSmartDNS       bool
	Mode              DNSResolverMode
	SmartDNSAddr      string
	SmartDNSWildcards []string
}

// EN: Aggregated resolver outputs consumed by routes update pipeline.
// RU: Агрегированные результаты резолвера, используемые пайплайном обновления маршрутов.
type resolverResult struct {
	IPs           []string
	IPMap         [][2]string
	DirectIPs     []string
	DirectIPMap   [][2]string
	WildcardIPs   []string
	WildcardIPMap [][2]string
	DomainCache   map[string]any
	PtrCache      map[string]any
}

// EN: Runtime DNS upstream pools for standard and meta-special lookups.
// RU: Наборы DNS-апстримов для обычных и meta-special резолвов.
type dnsConfig struct {
	Default  []string
	Meta     []string
	SmartDNS string
	Mode     DNSResolverMode
}