package routing

// RouteItem represents a MikroTik-style /ip route entry
type RouteItem struct {
	ID           string `json:"id"`
	DstAddress   string `json:"dst_address"`   // CIDR e.g. "0.0.0.0/0", "192.168.10.0/24"
	Gateway      string `json:"gateway"`       // Gateway IP e.g. "192.168.1.1" or interface "wg0"
	Interface    string `json:"interface"`     // Output device
	Distance     int    `json:"distance"`      // Metric / Administrative Distance
	Protocol     string `json:"protocol,omitempty"` // Protocol e.g. "bgp", "ospf", "static", "connected", "dhcp"
	RoutingTable string `json:"routing_table"` // Table name e.g. "main", "wan2", "vpn_out"
	TableID      int    `json:"table_id"`
	Active       bool   `json:"active"`        // MikroTik 'A' flag
	Dynamic      bool   `json:"dynamic"`       // MikroTik 'D' flag (kernel learned)
	Connect      bool   `json:"connect"`       // MikroTik 'C' flag (directly connected interface subnet)
	Static       bool   `json:"static"`        // MikroTik 'S' flag (user defined)
	ECMP         bool   `json:"ecmp"`          // Equal-Cost Multi-Path route (MikroTik 'E' flag)
	Multicast    bool   `json:"multicast"`     // Multicast / IGMP route (224.0.0.0/4 or kernel multicast)
	IsMultiPath  bool   `json:"is_multipath"`  // Linux kernel multipath nexthop
	Disabled     bool   `json:"disabled"`      // MikroTik 'X' flag
	Comment      string `json:"comment,omitempty"`

	// Gateway Health Check & Behind-NAT Internet Prober
	CheckGateway    string `json:"check_gateway,omitempty"`     // "none", "ping", "internet"
	CheckTarget     string `json:"check_target,omitempty"`      // Target to probe (e.g. "1.1.1.1", "8.8.8.8")
	CheckInterval   int    `json:"check_interval,omitempty"`    // Seconds between probes (default 5)
	CheckThreshold  int    `json:"check_threshold,omitempty"`   // Consecutive failures before failover (default 3)
	HealthStatus    string `json:"health_status,omitempty"`     // "online", "offline", "checking", "none"
	HealthRTT       float64 `json:"health_rtt_ms,omitempty"`    // Round trip latency in ms
	HealthLossPct   float64 `json:"health_loss_pct,omitempty"`  // Packet loss percentage
	HealthFailCount int    `json:"health_fail_count,omitempty"` // Consecutive failures count
	HealthLastCheck string `json:"health_last_check,omitempty"` // Formatted timestamp of last probe

	// Old values for modifying existing routes
	OldDstAddress   string `json:"old_dst_address,omitempty"`
	OldGateway      string `json:"old_gateway,omitempty"`
	OldRoutingTable string `json:"old_routing_table,omitempty"`
	OldDistance     *int   `json:"old_distance,omitempty"`
	OldInterface    string `json:"old_interface,omitempty"`
}

// PolicyRuleItem represents a MikroTik /ip route rule (Linux `ip rule`)
type PolicyRuleItem struct {
	ID          string `json:"id"`
	Priority    int    `json:"priority"`     // Preference number (e.g. 1000, 32766)
	SrcAddress  string `json:"src_address,omitempty"`
	DstAddress  string `json:"dst_address,omitempty"`
	RoutingMark string `json:"routing_mark,omitempty"` // Matches fwmark set in Mangle
	Table       string `json:"table"`        // Table to lookup (e.g. "wan2", "main")
	TableID     int    `json:"table_id"`
	Action      string `json:"action"`       // lookup, unreachable, blackhole, prohibit
	Comment     string `json:"comment,omitempty"`
	IsDefault   bool   `json:"is_default,omitempty"`
	IsSystem    bool   `json:"is_system,omitempty"`
}

// RoutingTableItem represents a named routing table in Linux (/etc/iproute2/rt_tables)
type RoutingTableItem struct {
	Name    string `json:"name"`
	TableID int    `json:"table_id"`
	Comment string `json:"comment,omitempty"`
}