const Protocols = {
    Freedom: "freedom",
    Blackhole: "blackhole",
    DNS: "dns",
    VMess: "vmess",
    VLESS: "vless",
    Trojan: "trojan",
    Shadowsocks: "shadowsocks",
    Socks: "socks",
    HTTP: "http",
    Wireguard: "wireguard"
};

const SSMethods = {
    AES_256_GCM: 'aes-256-gcm',
    AES_128_GCM: 'aes-128-gcm',
    CHACHA20_POLY1305: 'chacha20-poly1305',
    CHACHA20_IETF_POLY1305: 'chacha20-ietf-poly1305',
    XCHACHA20_POLY1305: 'xchacha20-poly1305',
    XCHACHA20_IETF_POLY1305: 'xchacha20-ietf-poly1305',
    BLAKE3_AES_128_GCM: '2022-blake3-aes-128-gcm',
    BLAKE3_AES_256_GCM: '2022-blake3-aes-256-gcm',
    BLAKE3_CHACHA20_POLY1305: '2022-blake3-chacha20-poly1305',
};

const TLS_FLOW_CONTROL = {
    VISION: "xtls-rprx-vision",
    VISION_UDP443: "xtls-rprx-vision-udp443",
};

const UTLS_FINGERPRINT = {
    UTLS_CHROME: "chrome",
    UTLS_FIREFOX: "firefox",
    UTLS_SAFARI: "safari",
    UTLS_IOS: "ios",
    UTLS_android: "android",
    UTLS_EDGE: "edge",
    UTLS_360: "360",
    UTLS_QQ: "qq",
    UTLS_RANDOM: "random",
    UTLS_RANDOMIZED: "randomized",
};

const ALPN_OPTION = {
    H3: "h3",
    H2: "h2",
    HTTP1: "http/1.1",
};

const OutboundDomainStrategies = [
    "AsIs",
    "UseIP",
    "UseIPv4",
    "UseIPv6",
    "UseIPv6v4",
    "UseIPv4v6",
    "ForceIP",
    "ForceIPv6v4",
    "ForceIPv6",
    "ForceIPv4v6",
    "ForceIPv4"
];

const WireguardDomainStrategy = [
    "ForceIP",
    "ForceIPv4",
    "ForceIPv4v6",
    "ForceIPv6",
    "ForceIPv6v4"
];

const USERS_SECURITY = {
    AES_128_GCM: "aes-128-gcm",
    CHACHA20_POLY1305: "chacha20-poly1305",
    AUTO: "auto",
    NONE: "none",
    ZERO: "zero",
};

Object.freeze(Protocols);
Object.freeze(SSMethods);
Object.freeze(TLS_FLOW_CONTROL);
Object.freeze(UTLS_FINGERPRINT);
Object.freeze(ALPN_OPTION);
Object.freeze(OutboundDomainStrategies);
Object.freeze(WireguardDomainStrategy);
Object.freeze(USERS_SECURITY);


class CommonClass {

    static toJsonArray(arr) {
        return arr.map(obj => obj.toJson());
    }

    static fromJson() {
        return new CommonClass();
    }

    toJson() {
        return this;
    }

    toString(format = true) {
        return format ? JSON.stringify(this.toJson(), null, 2) : JSON.stringify(this.toJson());
    }
}

class TcpStreamSettings extends CommonClass {
    constructor(type = 'none', host, path) {
        super();
        this.type = type;
        this.host = host;
        this.path = path;
    }

    static fromJson(json = {}) {
        let header = json.header;
        if (!header) return new TcpStreamSettings();
        if (header.type == 'http' && header.request) {
            return new TcpStreamSettings(
                header.type,
                header.request.headers.Host.join(','),
                header.request.path.join(','),
            );
        }
        return new TcpStreamSettings(header.type, '', '');
    }

    toJson() {
        return {
            header: {
                type: this.type,
                request: this.type === 'http' ? {
                    headers: {
                        Host: ObjectUtil.isEmpty(this.host) ? [] : this.host.split(',')
                    },
                    path: ObjectUtil.isEmpty(this.path) ? ["/"] : this.path.split(',')
                } : undefined,
            }
        };
    }
}

class KcpStreamSettings extends CommonClass {
    constructor(
        mtu = 1350,
        tti = 50,
        uplinkCapacity = 5,
        downlinkCapacity = 20,
        congestion = false,
        readBufferSize = 2,
        writeBufferSize = 2,
        type = 'none',
        seed = '',
    ) {
        super();
        this.mtu = mtu;
        this.tti = tti;
        this.upCap = uplinkCapacity;
        this.downCap = downlinkCapacity;
        this.congestion = congestion;
        this.readBuffer = readBufferSize;
        this.writeBuffer = writeBufferSize;
        this.type = type;
        this.seed = seed;
    }

    static fromJson(json = {}) {
        return new KcpStreamSettings(
            json.mtu,
            json.tti,
            json.uplinkCapacity,
            json.downlinkCapacity,
            json.congestion,
            json.readBufferSize,
            json.writeBufferSize,
            ObjectUtil.isEmpty(json.header) ? 'none' : json.header.type,
            json.seed,
        );
    }

    toJson() {
        return {
            mtu: this.mtu,
            tti: this.tti,
            uplinkCapacity: this.upCap,
            downlinkCapacity: this.downCap,
            congestion: this.congestion,
            readBufferSize: this.readBuffer,
            writeBufferSize: this.writeBuffer,
            header: {
                type: this.type,
            },
            seed: this.seed,
        };
    }
}

class WsStreamSettings extends CommonClass {
    constructor(path = '/', host = '') {
        super();
        this.path = path;
        this.host = host;
    }

    static fromJson(json = {}) {
        return new WsStreamSettings(
            json.path,
            json.host,
        );
    }

    toJson() {
        return {
            path: this.path,
            host: this.host,
        };
    }
}

class HttpStreamSettings extends CommonClass {
    constructor(path = '/', host = '') {
        super();
        this.path = path;
        this.host = host;
    }

    static fromJson(json = {}) {
        return new HttpStreamSettings(
            json.path,
            json.host ? json.host.join(',') : '',
        );
    }

    toJson() {
        return {
            path: this.path,
            host: ObjectUtil.isEmpty(this.host) ? [''] : this.host.split(','),
        }
    }
}

class QuicStreamSettings extends CommonClass {
    constructor(
        security = 'none',
        key = '',
        type = 'none'
    ) {
        super();
        this.security = security;
        this.key = key;
        this.type = type;
    }

    static fromJson(json = {}) {
        return new QuicStreamSettings(
            json.security,
            json.key,
            json.header ? json.header.type : 'none',
        );
    }

    toJson() {
        return {
            security: this.security,
            key: this.key,
            header: {
                type: this.type,
            }
        }
    }
}

class GrpcStreamSettings extends CommonClass {
    constructor(
        serviceName = "",
        authority = "",
        multiMode = false
    ) {
        super();
        this.serviceName = serviceName;
        this.authority = authority;
        this.multiMode = multiMode;
    }

    static fromJson(json = {}) {
        return new GrpcStreamSettings(json.serviceName, json.authority, json.multiMode);
    }

    toJson() {
        return {
            serviceName: this.serviceName,
            authority: this.authority,
            multiMode: this.multiMode
        }
    }
}

class HttpUpgradeStreamSettings extends CommonClass {
    constructor(path = '/', host = '') {
        super();
        this.path = path;
        this.host = host;
    }

    static fromJson(json = {}) {
        return new HttpUpgradeStreamSettings(
            json.path,
            json.host,
        );
    }

    toJson() {
        return {
            path: this.path,
            host: this.host,
        };
    }
}

class SplitHTTPStreamSettings extends CommonClass {
    constructor(path = '/', host = '') {
        super();
        this.path = path;
        this.host = host;
    }

    static fromJson(json = {}) {
        return new SplitHTTPStreamSettings(
            json.path,
            json.host,
        );
    }

    toJson() {
        return {
            path: this.path,
            host: this.host,
        };
    }
}

class TlsStreamSettings extends CommonClass {
    constructor(
        serverName = '',
        alpn = [],
        fingerprint = '',
        allowInsecure = false
    ) {
        super();
        this.serverName = serverName;
        this.alpn = alpn;
        this.fingerprint = fingerprint;
        this.allowInsecure = allowInsecure;
    }

    static fromJson(json = {}) {
        return new TlsStreamSettings(
            json.serverName,
            json.alpn,
            json.fingerprint,
            json.allowInsecure,
        );
    }

    toJson() {
        return {
            serverName: this.serverName,
            alpn: this.alpn,
            fingerprint: this.fingerprint,
            allowInsecure: this.allowInsecure,
        };
    }
}

class RealityStreamSettings extends CommonClass {
    constructor(
        publicKey = '',
        fingerprint = '',
        serverName = '',
        shortId = '',
        spiderX = '/'
    ) {
        super();
        this.publicKey = publicKey;
        this.fingerprint = fingerprint;
        this.serverName = serverName;
        this.shortId = shortId
        this.spiderX = spiderX;
    }
    static fromJson(json = {}) {
        return new RealityStreamSettings(
            json.publicKey,
            json.fingerprint,
            json.serverName,
            json.shortId,
            json.spiderX,
        );
    }
    toJson() {
        return {
            publicKey: this.publicKey,
            fingerprint: this.fingerprint,
            serverName: this.serverName,
            shortId: this.shortId,
            spiderX: this.spiderX,
        };
    }
};
class SockoptStreamSettings extends CommonClass {
    constructor(
        dialerProxy = "",
        tcpFastOpen = false,
        tcpKeepAliveInterval = 0,
        tcpMptcp = false,
        tcpNoDelay = false
    ) {
        super();
        this.dialerProxy = dialerProxy;
        this.tcpFastOpen = tcpFastOpen;
        this.tcpKeepAliveInterval = tcpKeepAliveInterval;
        this.tcpMptcp = tcpMptcp;
        this.tcpNoDelay = tcpNoDelay;
    }

    static fromJson(json = {}) {
        if (Object.keys(json).length === 0) return undefined;
        return new SockoptStreamSettings(
            json.dialerProxy,
            json.tcpFastOpen,
            json.tcpKeepAliveInterval,
            json.tcpMptcp,
            json.tcpNoDelay,
        );
    }

    toJson() {
        return {
            dialerProxy: this.dialerProxy,
            tcpFastOpen: this.tcpFastOpen,
            tcpKeepAliveInterval: this.tcpKeepAliveInterval,
            tcpMptcp: this.tcpMptcp,
            tcpNoDelay: this.tcpNoDelay,
        };
    }
}

class StreamSettings extends CommonClass {
    constructor(
        network = 'tcp',
        security = 'none',
        tlsSettings = new TlsStreamSettings(),
        realitySettings = new RealityStreamSettings(),
        tcpSettings = new TcpStreamSettings(),
        kcpSettings = new KcpStreamSettings(),
        wsSettings = new WsStreamSettings(),
        httpSettings = new HttpStreamSettings(),
        quicSettings = new QuicStreamSettings(),
        grpcSettings = new GrpcStreamSettings(),
        httpupgradeSettings = new HttpUpgradeStreamSettings(),
        splithttpSettings = new SplitHTTPStreamSettings(),
        sockopt = undefined,
    ) {
        super();
        this.network = network;
        this.security = security;
        this.tls = tlsSettings;
        this.reality = realitySettings;
        this.tcp = tcpSettings;
        this.kcp = kcpSettings;
        this.ws = wsSettings;
        this.http = httpSettings;
        this.quic = quicSettings;
        this.grpc = grpcSettings;
        this.httpupgrade = httpupgradeSettings;
        this.splithttp = splithttpSettings;
        this.sockopt = sockopt;
    }

    get isTls() {
        return this.security === 'tls';
    }

    get isReality() {
        return this.security === "reality";
    }

    get sockoptSwitch() {
        return this.sockopt != undefined;
    }

    set sockoptSwitch(value) {
        this.sockopt = value ? new SockoptStreamSettings() : undefined;
    }

    static fromJson(json = {}) {
        return new StreamSettings(
            json.network,
            json.security,
            TlsStreamSettings.fromJson(json.tlsSettings),
            RealityStreamSettings.fromJson(json.realitySettings),
            TcpStreamSettings.fromJson(json.tcpSettings),
            KcpStreamSettings.fromJson(json.kcpSettings),
            WsStreamSettings.fromJson(json.wsSettings),
            HttpStreamSettings.fromJson(json.httpSettings),
            QuicStreamSettings.fromJson(json.quicSettings),
            GrpcStreamSettings.fromJson(json.grpcSettings),
            HttpUpgradeStreamSettings.fromJson(json.httpupgradeSettings),
            SplitHTTPStreamSettings.fromJson(json.splithttpSettings),
            SockoptStreamSettings.fromJson(json.sockopt),
        );
    }

    toJson() {
        const network = this.network;
        return {
            network: network,
            security: this.security,
            tlsSettings: this.security == 'tls' ? this.tls.toJson() : undefined,
            realitySettings: this.security == 'reality' ? this.reality.toJson() : undefined,
            tcpSettings: network === 'tcp' ? this.tcp.toJson() : undefined,
            kcpSettings: network === 'kcp' ? this.kcp.toJson() : undefined,
            wsSettings: network === 'ws' ? this.ws.toJson() : undefined,
            httpSettings: network === 'http' ? this.http.toJson() : undefined,
            quicSettings: network === 'quic' ? this.quic.toJson() : undefined,
            grpcSettings: network === 'grpc' ? this.grpc.toJson() : undefined,
            httpupgradeSettings: network === 'httpupgrade' ? this.httpupgrade.toJson() : undefined,
            splithttpSettings: network === 'splithttp' ? this.splithttp.toJson() : undefined,
            sockopt: this.sockopt != undefined ? this.sockopt.toJson() : undefined,
        };
    }
}

class Mux extends CommonClass {
    constructor(enabled = false, concurrency = 8, xudpConcurrency = 16, xudpProxyUDP443 = "reject") {
        super();
        this.enabled = enabled;
        this.concurrency = concurrency;
        this.xudpConcurrency = xudpConcurrency;
        this.xudpProxyUDP443 = xudpProxyUDP443;
    }

    static fromJson(json = {}) {
        if (Object.keys(json).length === 0) return undefined;
        return new Mux(
            json.enabled,
            json.concurrency,
            json.xudpConcurrency,
            json.xudpProxyUDP443,
        );
    }

    toJson() {
        return {
            enabled: this.enabled,
            concurrency: this.concurrency,
            xudpConcurrency: this.xudpConcurrency,
            xudpProxyUDP443: this.xudpProxyUDP443,
        };
    }
}

class Outbound extends CommonClass {
    constructor(
        tag = '',
        protocol = Protocols.VMess,
        settings = null,
        streamSettings = new StreamSettings(),
        sendThrough,
        mux = new Mux(),
    ) {
        super();
        this.tag = tag;
        this._protocol = protocol;
        this.settings = settings == null ? Outbound.Settings.getSettings(protocol) : settings;
        this.stream = streamSettings;
        this.sendThrough = sendThrough;
        this.mux = mux;
    }

    get protocol() {
        return this._protocol;
    }

    set protocol(protocol) {
        this._protocol = protocol;
        this.settings = Outbound.Settings.getSettings(protocol);
        this.stream = new StreamSettings();
    }

    canEnableTls() {
        if (![Protocols.VMess, Protocols.VLESS, Protocols.Trojan, Protocols.Shadowsocks].includes(this.protocol)) return false;
        return ["tcp", "ws", "http", "quic", "grpc", "httpupgrade", "splithttp"].includes(this.stream.network);
    }

    //this is used for xtls-rprx-vision
    canEnableTlsFlow() {
        if ((this.stream.security != 'none') && (this.stream.network === "tcp")) {
            return this.protocol === Protocols.VLESS;
        }
        return false;
    }

    canEnableReality() {
        if (![Protocols.VLESS, Protocols.Trojan].includes(this.protocol)) return false;
        return ["tcp", "http", "grpc"].includes(this.stream.network);
    }

    canEnableStream() {
        return [Protocols.VMess, Protocols.VLESS, Protocols.Trojan, Protocols.Shadowsocks].includes(this.protocol);
    }

    canEnableMux() {
        if (this.settings.flow && this.settings.flow != '') {
            this.mux.enabled = false;
            return false;
        }
        return [Protocols.VMess, Protocols.VLESS, Protocols.Trojan, Protocols.Shadowsocks, Protocols.HTTP, Protocols.Socks].includes(this.protocol);
    }

    hasVnext() {
        return [Protocols.VMess, Protocols.VLESS].includes(this.protocol);
    }

    hasServers() {
        return [Protocols.Trojan, Protocols.Shadowsocks, Protocols.Socks, Protocols.HTTP].includes(this.protocol);
    }

    hasAddressPort() {
        return [
            Protocols.DNS,
            Protocols.VMess,
            Protocols.VLESS,
            Protocols.Trojan,
            Protocols.Shadowsocks,
            Protocols.Socks,
            Protocols.HTTP
        ].includes(this.protocol);
    }

    hasUsername() {
        return [Protocols.Socks, Protocols.HTTP].includes(this.protocol);
    }

    static fromJson(json = {}) {
        return new Outbound(
            json.tag,
            json.protocol,
            Outbound.Settings.fromJson(json.protocol, json.settings),
            StreamSettings.fromJson(json.streamSettings),
            json.sendThrough,
            Mux.fromJson(json.mux),
        )
    }

    toJson() {
        var stream;
        if (this.canEnableStream()) {
            stream = this.stream.toJson();
        } else {
            if (this.stream?.sockopt)
                stream = { sockopt: this.stream.sockopt.toJson() };
        }
        return {
            tag: this.tag == '' ? undefined : this.tag,
            protocol: this.protocol,
            settings: this.settings instanceof CommonClass ? this.settings.toJson() : this.settings,
            streamSettings: stream,
            sendThrough: this.sendThrough != "" ? this.sendThrough : undefined,
            mux: this.mux?.enabled ? this.mux : undefined,
        };
    }

    static fromLink(link) {
        data = link.split('://');
        if (data.length != 2) return null;
        switch (data[0].toLowerCase()) {
            case Protocols.VMess:
                return this.fromVmessLink(JSON.parse(Base64.decode(data[1])));
            case Protocols.VLESS:
            case Protocols.Trojan:
            case 'ss':
                return this.fromParamLink(link);
            default:
                return null;
        }
    }

    static fromVmessLink(json = {}) {
        let stream = new StreamSettings(json.net, json.tls);

        let network = json.net;
        if (network === 'tcp') {
            stream.tcp = new TcpStreamSettings(
                json.type,
                json.host ?? '',
                json.path ?? '');
        } else if (network === 'kcp') {
            stream.kcp = new KcpStreamSettings();
            stream.type = json.type;
            stream.seed = json.path;
        } else if (network === 'ws') {
            stream.ws = new WsStreamSettings(json.path, json.host);
        } else if (network === 'http' || network == 'h2') {
            stream.network = 'http'
            stream.http = new HttpStreamSettings(
                json.path,
                json.host);
        } else if (network === 'quic') {
            stream.quic = new QuicStreamSettings(
                json.host ? json.host : 'none',
                json.path,
                json.type ? json.type : 'none');
        } else if (network === 'grpc') {
            stream.grpc = new GrpcStreamSettings(json.path, json.authority, json.type == 'multi');
        } else if (network === 'httpupgrade') {
            stream.httpupgrade = new HttpUpgradeStreamSettings(json.path, json.host);
        } else if (network === 'splithttp') {
            stream.splithttp = new SplitHTTPStreamSettings(json.path, json.host);
        }

        if (json.tls && json.tls == 'tls') {
            stream.tls = new TlsStreamSettings(
                json.sni,
                json.alpn ? json.alpn.split(',') : [],
                json.fp,
                json.allowInsecure);
        }

        const port = json.port * 1;

        return new Outbound(json.ps, Protocols.VMess, new Outbound.VmessSettings(json.add, port, json.id, json.scy), stream);
    }

    static fromParamLink(link) {
        const url = new URL(link);
        let type = url.searchParams.get('type') ?? 'tcp';
        let security = url.searchParams.get('security') ?? 'none';
        let stream = new StreamSettings(type, security);

        let headerType = url.searchParams.get('headerType') ?? undefined;
        let host = url.searchParams.get('host') ?? undefined;
        let path = url.searchParams.get('path') ?? undefined;

        if (type === 'tcp' || type === 'none') {
            stream.tcp = new TcpStreamSettings(headerType ?? 'none', host, path);
        } else if (type === 'kcp') {
            stream.kcp = new KcpStreamSettings();
            stream.kcp.type = headerType ?? 'none';
            stream.kcp.seed = path;
        } else if (type === 'ws') {
            stream.ws = new WsStreamSettings(path, host);
        } else if (type === 'http' || type == 'h2') {
            stream.http = new HttpStreamSettings(path, host);
        } else if (type === 'quic') {
            stream.quic = new QuicStreamSettings(
                url.searchParams.get('quicSecurity') ?? 'none',
                url.searchParams.get('key') ?? '',
                headerType ?? 'none');
        } else if (type === 'grpc') {
            stream.grpc = new GrpcStreamSettings(
                url.searchParams.get('serviceName') ?? '',
                url.searchParams.get('authority') ?? '',
                url.searchParams.get('mode') == 'multi');
        } else if (type === 'httpupgrade') {
            stream.httpupgrade = new HttpUpgradeStreamSettings(path, host);
        } else if (type === 'splithttp') {
            stream.splithttp = new SplitHTTPStreamSettings(path, host);
        }

        if (security == 'tls') {
            let fp = url.searchParams.get('fp') ?? 'none';
            let alpn = url.searchParams.get('alpn');
            let allowInsecure = url.searchParams.get('allowInsecure');
            let sni = url.searchParams.get('sni') ?? '';
            stream.tls = new TlsStreamSettings(sni, alpn ? alpn.split(',') : [], fp, allowInsecure == 1);
        }

        if (security == 'reality') {
            let pbk = url.searchParams.get('pbk');
            let fp = url.searchParams.get('fp');
            let sni = url.searchParams.get('sni') ?? '';
            let sid = url.searchParams.get('sid') ?? '';
            let spx = url.searchParams.get('spx') ?? '';
            stream.reality = new RealityStreamSettings(pbk, fp, sni, sid, spx);
        }

        const regex = /([^@]+):\/\/([^@]+)@(.+):(\d+)(.*)$/;
        const match = link.match(regex);

        if (!match) return null;
        let [, protocol, userData, address, port,] = match;
        port *= 1;
        if (protocol == 'ss') {
            protocol = 'shadowsocks';
            userData = atob(userData).split(':');
        }
        var settings;
        switch (protocol) {
            case Protocols.VLESS:
                settings = new Outbound.VLESSSettings(address, port, userData, url.searchParams.get('flow') ?? '');
                break;
            case Protocols.Trojan:
                settings = new Outbound.TrojanSettings(address, port, userData);
                break;
            case Protocols.Shadowsocks:
                let method = userData.splice(0, 1)[0];
                settings = new Outbound.ShadowsocksSettings(address, port, userData.join(":"), method, true);
                break;
            default:
                return null;
        }
        let remark = decodeURIComponent(url.hash);
        // Remove '#' from url.hash
        remark = remark.length > 0 ? remark.substring(1) : 'out-' + protocol + '-' + port;
        return new Outbound(remark, protocol, settings, stream);
    }
}

Outbound.Settings = class extends CommonClass {
    constructor(protocol) {
        super();
        this.protocol = protocol;
    }

    static getSettings(protocol) {
        switch (protocol) {
            case Protocols.Freedom: return new Outbound.FreedomSettings();
            case Protocols.Blackhole: return new Outbound.BlackholeSettings();
            case Protocols.DNS: return new Outbound.DNSSettings();
            case Protocols.VMess: return new Outbound.VmessSettings();
            case Protocols.VLESS: return new Outbound.VLESSSettings();
            case Protocols.Trojan: return new Outbound.TrojanSettings();
            case Protocols.Shadowsocks: return new Outbound.ShadowsocksSettings();
            case Protocols.Socks: return new Outbound.SocksSettings();
            case Protocols.HTTP: return new Outbound.HttpSettings();
            case Protocols.Wireguard: return new Outbound.WireguardSettings();
            default: return null;
        }
    }

    static fromJson(protocol, json) {
        switch (protocol) {
            case Protocols.Freedom: return Outbound.FreedomSettings.fromJson(json);
            case Protocols.Blackhole: return Outbound.BlackholeSettings.fromJson(json);
            case Protocols.DNS: return Outbound.DNSSettings.fromJson(json);
            case Protocols.VMess: return Outbound.VmessSettings.fromJson(json);
            case Protocols.VLESS: return Outbound.VLESSSettings.fromJson(json);
            case Protocols.Trojan: return Outbound.TrojanSettings.fromJson(json);
            case Protocols.Shadowsocks: return Outbound.ShadowsocksSettings.fromJson(json);
            case Protocols.Socks: return Outbound.SocksSettings.fromJson(json);
            case Protocols.HTTP: return Outbound.HttpSettings.fromJson(json);
            case Protocols.Wireguard: return Outbound.WireguardSettings.fromJson(json);
            default: return null;
        }
    }

    toJson() {
        return {};
    }
};
Outbound.FreedomSettings = class extends CommonClass {
    constructor(domainStrategy = '', fragment = {}) {
        super();
        this.domainStrategy = domainStrategy;
        this.fragment = fragment;
    }

    static fromJson(json = {}) {
        return new Outbound.FreedomSettings(
            json.domainStrategy,
            json.fragment ? Outbound.FreedomSettings.Fragment.fromJson(json.fragment) : undefined,
        );
    }

    toJson() {
        return {
            domainStrategy: ObjectUtil.isEmpty(this.domainStrategy) ? undefined : this.domainStrategy,
            fragment: Object.keys(this.fragment).length === 0 ? undefined : this.fragment,
        };
    }
};
Outbound.FreedomSettings.Fragment = class extends CommonClass {
    constructor(packets = '1-3', length = '', interval = '') {
        super();
        this.packets = packets;
        this.length = length;
        this.interval = interval;
    }

    static fromJson(json = {}) {
        return new Outbound.FreedomSettings.Fragment(
            json.packets,
            json.length,
            json.interval,
        );
    }
};
Outbound.BlackholeSettings = class extends CommonClass {
    constructor(type) {
        super();
        this.type = type;
    }

    static fromJson(json = {}) {
        return new Outbound.BlackholeSettings(
            json.response ? json.response.type : undefined,
        );
    }

    toJson() {
        return {
            response: ObjectUtil.isEmpty(this.type) ? undefined : { type: this.type },
        };
    }
};
Outbound.DNSSettings = class extends CommonClass {
    constructor(network = 'udp', address = '1.1.1.1', port = 53) {
        super();
        this.network = network;
        this.address = address;
        this.port = port;
    }

    static fromJson(json = {}) {
        return new Outbound.DNSSettings(
            json.network,
            json.address,
            json.port,
        );
    }
};
Outbound.VmessSettings = class extends CommonClass {
    constructor(address, port, id, security) {
        super();
        this.address = address;
        this.port = port;
        this.id = id;
        this.security = security;
    }

    static fromJson(json = {}) {
        if (ObjectUtil.isArrEmpty(json.vnext)) return new Outbound.VmessSettings();
        return new Outbound.VmessSettings(
            json.vnext[0].address,
            json.vnext[0].port,
            json.vnext[0].users[0].id,
            json.vnext[0].users[0].security,
        );
    }

    toJson() {
        return {
            vnext: [{
                address: this.address,
                port: this.port,
                users: [{ id: this.id, security: this.security }],
            }],
        };
    }
};
Outbound.VLESSSettings = class extends CommonClass {
    constructor(address, port, id, flow, encryption = 'none') {
        super();
        this.address = address;
        this.port = port;
        this.id = id;
        this.flow = flow;
        this.encryption = encryption
    }

    static fromJson(json = {}) {
        if (ObjectUtil.isArrEmpty(json.vnext)) return new Outbound.VLESSSettings();
        return new Outbound.VLESSSettings(
            json.vnext[0].address,
            json.vnext[0].port,
            json.vnext[0].users[0].id,
            json.vnext[0].users[0].flow,
            json.vnext[0].users[0].encryption,
        );
    }

    toJson() {
        return {
            vnext: [{
                address: this.address,
                port: this.port,
                users: [{ id: this.id, flow: this.flow, encryption: 'none', }],
            }],
        };
    }
};
Outbound.TrojanSettings = class extends CommonClass {
    constructor(address, port, password) {
        super();
        this.address = address;
        this.port = port;
        this.password = password;
    }

    static fromJson(json = {}) {
        if (ObjectUtil.isArrEmpty(json.servers)) return new Outbound.TrojanSettings();
        return new Outbound.TrojanSettings(
            json.servers[0].address,
            json.servers[0].port,
            json.servers[0].password,
        );
    }

    toJson() {
        return {
            servers: [{
                address: this.address,
                port: this.port,
                password: this.password,
            }],
        };
    }
};
Outbound.ShadowsocksSettings = class extends CommonClass {
    constructor(address, port, password, method, uot, UoTVersion) {
        super();
        this.address = address;
        this.port = port;
        this.password = password;
        this.method = method;
        this.uot = uot;
        this.UoTVersion = UoTVersion;
    }

    static fromJson(json = {}) {
        let servers = json.servers;
        if (ObjectUtil.isArrEmpty(servers)) servers = [{}];
        return new Outbound.ShadowsocksSettings(
            servers[0].address,
            servers[0].port,
            servers[0].password,
            servers[0].method,
            servers[0].uot,
            servers[0].UoTVersion,
        );
    }

    toJson() {
        return {
            servers: [{
                address: this.address,
                port: this.port,
                password: this.password,
                method: this.method,
                uot: this.uot,
                UoTVersion: this.UoTVersion,
            }],
        };
    }
};

Outbound.SocksSettings = class extends CommonClass {
    constructor(address, port, user, pass) {
        super();
        this.address = address;
        this.port = port;
        this.user = user;
        this.pass = pass;
    }

    static fromJson(json = {}) {
        let servers = json.servers;
        if (ObjectUtil.isArrEmpty(servers)) servers = [{ users: [{}] }];
        return new Outbound.SocksSettings(
            servers[0].address,
            servers[0].port,
            ObjectUtil.isArrEmpty(servers[0].users) ? '' : servers[0].users[0].user,
            ObjectUtil.isArrEmpty(servers[0].users) ? '' : servers[0].users[0].pass,
        );
    }

    toJson() {
        return {
            servers: [{
                address: this.address,
                port: this.port,
                users: ObjectUtil.isEmpty(this.user) ? [] : [{ user: this.user, pass: this.pass }],
            }],
        };
    }
};
Outbound.HttpSettings = class extends CommonClass {
    constructor(address, port, user, pass) {
        super();
        this.address = address;
        this.port = port;
        this.user = user;
        this.pass = pass;
    }

    static fromJson(json = {}) {
        let servers = json.servers;
        if (ObjectUtil.isArrEmpty(servers)) servers = [{ users: [{}] }];
        return new Outbound.HttpSettings(
            servers[0].address,
            servers[0].port,
            ObjectUtil.isArrEmpty(servers[0].users) ? '' : servers[0].users[0].user,
            ObjectUtil.isArrEmpty(servers[0].users) ? '' : servers[0].users[0].pass,
        );
    }

    toJson() {
        return {
            servers: [{
                address: this.address,
                port: this.port,
                users: ObjectUtil.isEmpty(this.user) ? [] : [{ user: this.user, pass: this.pass }],
            }],
        };
    }
};

Outbound.WireguardSettings = class extends CommonClass {
    constructor(
        mtu = 1420,
        secretKey = '',
        address = [''],
        workers = 2,
        domainStrategy = '',
        reserved = '',
        peers = [new Outbound.WireguardSettings.Peer()],
        kernelMode = false
    ) {
        super();
        this.mtu = mtu;
        this.secretKey = secretKey;
        this.pubKey = secretKey.length > 0 ? Wireguard.generateKeypair(secretKey).publicKey : '';
        this.address = Array.isArray(address) ? address.join(',') : address;
        this.workers = workers;
        this.domainStrategy = domainStrategy;
        this.reserved = Array.isArray(reserved) ? reserved.join(',') : reserved;
        this.peers = peers;
        this.kernelMode = kernelMode;
    }

    addPeer() {
        this.peers.push(new Outbound.WireguardSettings.Peer());
    }

    delPeer(index) {
        this.peers.splice(index, 1);
    }

    static fromJson(json = {}) {
        return new Outbound.WireguardSettings(
            json.mtu,
            json.secretKey,
            json.address,
            json.workers,
            json.domainStrategy,
            json.reserved,
            json.peers.map(peer => Outbound.WireguardSettings.Peer.fromJson(peer)),
            json.kernelMode,
        );
    }

    toJson() {
        return {
            mtu: this.mtu ?? undefined,
            secretKey: this.secretKey,
            address: this.address ? this.address.split(",") : [],
            workers: this.workers ?? undefined,
            domainStrategy: WireguardDomainStrategy.includes(this.domainStrategy) ? this.domainStrategy : undefined,
            reserved: this.reserved ? this.reserved.split(",").map(Number) : undefined,
            peers: Outbound.WireguardSettings.Peer.toJsonArray(this.peers),
            kernelMode: this.kernelMode,
        };
    }
};

Outbound.WireguardSettings.Peer = class extends CommonClass {
    constructor(
        publicKey = '',
        psk = '',
        allowedIPs = ['0.0.0.0/0', '::/0'],
        endpoint = '',
        keepAlive = 0
    ) {
        super();
        this.publicKey = publicKey;
        this.psk = psk;
        this.allowedIPs = allowedIPs;
        this.endpoint = endpoint;
        this.keepAlive = keepAlive;
    }

    static fromJson(json = {}) {
        return new Outbound.WireguardSettings.Peer(
            json.publicKey,
            json.preSharedKey,
            json.allowedIPs,
            json.endpoint,
            json.keepAlive
        );
    }

    toJson() {
        return {
            publicKey: this.publicKey,
            preSharedKey: this.psk.length > 0 ? this.psk : undefined,
            allowedIPs: this.allowedIPs ? this.allowedIPs : undefined,
            endpoint: this.endpoint,
            keepAlive: this.keepAlive ?? undefined,
        };
    }
};