package config

import (
	"github.com/sagernet/sing-box/option"
	dns "github.com/sagernet/sing-dns"
)

type ConfigOptions struct {
	LogLevel       string      `json:"log-level"`
	EnableClashApi bool        `json:"enable-clash-api"`
	ClashApiPort   uint16      `json:"clash-api-port"`
	ClashApiSecret string      `json:"clash-api-secret"`
	GeoIPPath      string      `json:"geoip-path"`
	GeoSitePath    string      `json:"geosite-path"`
	Rules          []Rule      `json:"rules"`
	Warp           WarpOptions `json:"warp"`
	Mux            MuxOptions  `json:"mux"`
	TLSTricks      TLSTricks   `json:"tls-tricks"`
	DNSOptions
	InboundOptions
	URLTestOptions
	RouteOptions
}

type DNSOptions struct {
	RemoteDnsAddress        string                `json:"remote-dns-address"`
	RemoteDnsDomainStrategy option.DomainStrategy `json:"remote-dns-domain-strategy"`
	DirectDnsAddress        string                `json:"direct-dns-address"`
	DirectDnsDomainStrategy option.DomainStrategy `json:"direct-dns-domain-strategy"`
	IndependentDNSCache     bool                  `json:"independent-dns-cache"`
	EnableFakeDNS           bool                  `json:"enable-fake-dns"`
	EnableDNSRouting        bool                  `json:"enable-dns-routing"`
}

type InboundOptions struct {
	EnableTun        bool   `json:"enable-tun"`
	EnableTunService bool   `json:"enable-tun-service"`
	SetSystemProxy   bool   `json:"set-system-proxy"`
	MixedPort        uint16 `json:"mixed-port"`
	TProxyPort       uint16 `json:"tproxy-port"`
	LocalDnsPort     uint16 `json:"local-dns-port"`
	MTU              uint32 `json:"mtu"`
	StrictRoute      bool   `json:"strict-route"`
	TUNStack         string `json:"tun-implementation"`
}

type URLTestOptions struct {
	ConnectionTestUrl  string            `json:"connection-test-url"`
	URLTestInterval    DurationInSeconds `json:"url-test-interval"`
	URLTestIdleTimeout DurationInSeconds `json:"url-test-idle-timeout"`
}

type RouteOptions struct {
	ResolveDestination     bool                  `json:"resolve-destination"`
	IPv6Mode               option.DomainStrategy `json:"ipv6-mode"`
	BypassLAN              bool                  `json:"bypass-lan"`
	AllowConnectionFromLAN bool                  `json:"allow-connection-from-lan"`
}

type TLSTricks struct {
	EnableFragment bool   `json:"enable-fragment"`
	FragmentSize   string `json:"fragment-size"`
	FragmentSleep  string `json:"fragment-sleep"`
	MixedSNICase   bool   `json:"mixed-sni-case"`
	EnablePadding  bool   `json:"enable-padding"`
	PaddingSize    string `json:"padding-size"`
}

type MuxOptions struct {
	Enable     bool   `json:"enable"`
	Padding    bool   `json:"padding"`
	MaxStreams int    `json:"max-streams"`
	Protocol   string `json:"protocol"`
}

type WarpOptions struct {
	EnableWarp         bool                `json:"enable"`
	Mode               string              `json:"mode"`
	WireguardConfigStr string              `json:"wireguard-config"`
	WireguardConfig    WarpWireguardConfig `json:"wireguardConfig"` // TODO check
	FakePackets        string              `json:"noise"`
	FakePacketSize     string              `json:"fake-packet-size"`
	FakePacketDelay    string              `json:"noise-delay"`
	CleanIP            string              `json:"clean-ip"`
	CleanPort          uint16              `json:"clean-port"`
	Account            WarpAccount
}

func DefaultConfigOptions() *ConfigOptions {
	return &ConfigOptions{
		DNSOptions: DNSOptions{
			RemoteDnsAddress:        "1.1.1.1",
			RemoteDnsDomainStrategy: option.DomainStrategy(dns.DomainStrategyAsIS),
			DirectDnsAddress:        "1.1.1.1",
			DirectDnsDomainStrategy: option.DomainStrategy(dns.DomainStrategyAsIS),
			IndependentDNSCache:     false,
			EnableFakeDNS:           false,
			EnableDNSRouting:        false,
		},
		InboundOptions: InboundOptions{
			EnableTun:      false,
			SetSystemProxy: false,
			MixedPort:      2334,
			TProxyPort:     2335,
			LocalDnsPort:   16450,
			MTU:            9000,
			StrictRoute:    true,
			TUNStack:       "mixed",
		},
		URLTestOptions: URLTestOptions{
			ConnectionTestUrl:  "http://cp.cloudflare.com/",
			URLTestInterval:    DurationInSeconds(600),
			URLTestIdleTimeout: DurationInSeconds(6000),
		},
		RouteOptions: RouteOptions{
			ResolveDestination:     false,
			IPv6Mode:               option.DomainStrategy(dns.DomainStrategyAsIS),
			BypassLAN:              false,
			AllowConnectionFromLAN: false,
		},
		LogLevel:       "warn",
		EnableClashApi: true,
		ClashApiPort:   6756,
		ClashApiSecret: "",
		GeoIPPath:      "geoip.db",
		GeoSitePath:    "geosite.db",
		Rules:          []Rule{},
		Mux: MuxOptions{
			Enable:     false,
			Padding:    true,
			MaxStreams: 8,
			Protocol:   "h2mux",
		},
		TLSTricks: TLSTricks{
			EnableFragment: false,
			FragmentSize:   "10-100",
			FragmentSleep:  "50-200",
			MixedSNICase:   false,
			EnablePadding:  false,
			PaddingSize:    "1200-1500",
		},
	}
}