/*
小芒商城助手

[Script]
# > 小芒商城助手
^https?:\/\/*\.api\.mgtv\.com url script-request-body https://git.jojo21.top/shawenguan/Quantumult-X/raw/master/Scripts/mangguo/mgecomHelper.js
^https?:\/\/*\.api\.mgtv\.com url script-response-body https://git.jojo21.top/shawenguan/Quantumult-X/raw/master/Scripts/mangguo/mgecomHelper.js

[MITM]
hostname = api.mgtv.com

*/

const scriptName = `小芒商城助手`;
const magicJS = MagicJS(scriptName, "INFO");

const MGEcomConstKey = {
    AllUserInfo: 'mgeComAllUserInfo',
    AllUserConfig: 'mgeComAllUserConfig',
};

const gUserAgent = `Mozilla/5.0 (iPhone; CPU iPhone OS 16_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 Html5Plus/1.0 (Immersed/20) uni-app`;
const gHost = `api.wubian.pro`;
let gToken = magicJS.data.read(WuBianConstKey.Token, '');
const gCommonHeaders = {
    'Accept': `*/*`,
    'Accept-Encoding': `gzip, deflate, br`,
    'Connection': `keep-alive`,
    'Content-Type': `application/json`,
    'Cookie': `token=${gToken}`,
    'Host': gHost,
    'User-Agent': gUserAgent,
    'CLIENT-TYPE': `APP`,
    'token': gToken,
    'Accept-Language': `zh-CN,zh-Hans;q=0.9`
};

let gRetBody;

let gAllStateData = {

}

let SignHelper = (function () {
    const goldenRatio = 2654435769;
    function decodeByteArray(byteArray, hasLengthPrefix) {
        const length = byteArray.length;
        let totalLength = length << 2;

        if (hasLengthPrefix) {
            const lastByte = byteArray[length - 1];
            if (totalLength -= 4, lastByte < totalLength - 3 || lastByte > totalLength) return "";
            totalLength = lastByte;
        }

        for (let i = 0; i < length; i++) {
            byteArray[i] = String.fromCharCode(255 & byteArray[i], byteArray[i] >>> 8 & 255, byteArray[i] >>> 16 & 255, byteArray[i] >>> 24 & 255);
        }

        const resultString = byteArray.join("");
        return hasLengthPrefix ? resultString.substring(0, totalLength) : resultString;
    }

    function stringToByteArray(str, hasLengthPrefix) {
        const length = str.length;
        let byteArray, arrayLength = length >> 2;

        if (length & 3 !== 0) arrayLength++;
        if (hasLengthPrefix) {
            byteArray = new Array(arrayLength + 1);
            byteArray[arrayLength] = length;
        } else {
            byteArray = new Array(arrayLength);
        }

        for (let i = 0; i < length; ++i) {
            byteArray[i >> 2] |= str.charCodeAt(i) << ((3 & i) << 3);
        }

        return byteArray;
    }

    function unsignedRightShift(value) {
        return 4294967295 & value;
    }

    function customHashFunction(value, key, accumulator, index, arrayLength, keys) {
        return (accumulator >>> 5 ^ key << 2) + (key >>> 3 ^ accumulator << 4) ^ (value ^ key) + (keys[3 & index ^ arrayLength] ^ accumulator);
    }

    function ensureLength(byteArray) {
        if (byteArray.length < 4) byteArray.length = 4;
        return byteArray;
    }

    function encodeByteArray(byteArray, keys) {
        const length = byteArray.length;
        const lastIndex = length - 1;
        let temp, prevByte, nextByte;
        let sum = 0;

        for (prevByte = byteArray[lastIndex], sum = 0 | Math.floor(6 + 52 / length); sum > 0; --sum) {
            sum = unsignedRightShift(sum + goldenRatio);
            nextByte = sum >>> 2 & 3;

            for (let i = 0; i < lastIndex; ++i) {
                temp = byteArray[i + 1];
                prevByte = byteArray[i] = unsignedRightShift(byteArray[i] + customHashFunction(sum, temp, prevByte, i, nextByte, keys));
            }

            temp = byteArray[0];
            prevByte = byteArray[lastIndex] = unsignedRightShift(byteArray[lastIndex] + customHashFunction(sum, temp, prevByte, lastIndex, nextByte, keys));
        }

        return byteArray;
    }

    function utf8Encode(str) {
        if (/^[\x00-\x7f]*$/.test(str)) return str;

        const utf8Str = [];
        const length = str.length;

        for (let i = 0, j = 0; i < length; ++i, ++j) {
            const charCode = str.charCodeAt(i);

            if (charCode < 128) {
                utf8Str[j] = str.charAt(i);
            } else if (charCode < 2048) {
                utf8Str[j] = String.fromCharCode(192 | charCode >> 6, 128 | 63 & charCode);
            } else {
                if (charCode >= 55296 && charCode <= 57343) {
                    if (i + 1 < length) {
                        const nextCharCode = str.charCodeAt(i + 1);
                        if (charCode < 56320 && 56320 <= nextCharCode && nextCharCode <= 57343) {
                            const surrogatePair = 65536 + ((1023 & charCode) << 10 | 1023 & nextCharCode);
                            utf8Str[j] = String.fromCharCode(240 | surrogatePair >> 18 & 63, 128 | surrogatePair >> 12 & 63, 128 | surrogatePair >> 6 & 63, 128 | 63 & surrogatePair);
                            ++i;
                            continue;
                        }
                    }
                    throw new Error("Malformed string");
                }
                utf8Str[j] = String.fromCharCode(224 | charCode >> 12, 128 | charCode >> 6 & 63, 128 | 63 & charCode);
            }
        }

        return utf8Str.join("");
    }

    function encryptString(str, key) {
        if (str.length === 0) return str;
        str = utf8Encode(str);
        key = utf8Encode(key);

        return decodeByteArray(encodeByteArray(stringToByteArray(str, true), ensureLength(stringToByteArray(key, false))), false);
    }

    function base64Encode(str1, str2) {
        return btoa(encryptString(str1, str2));
    }

    function generateCustomString(str1, str2) {
        const md5 = createWMd5();
        return md5.hex_md5_32(`string xiaomang = "${str1}|${str2}";`);
    }

    function generateUuidWithVersion(uuid, version, offset) {
        const data = {
            uuid: uuid,
            reunixtime: Math.round((Date.now() - offset) / 1000),
        };
        const customString = generateCustomString(uuid, version);
        return base64Encode(JSON.stringify(data), customString);
    }

    function generateAnotherCustomString(str1, str2) {
        const md5 = createWMd5();
        return md5.hex_md5_32(`string ma = "${str1}|${str2}";`);
    }

    function generateRandomSalt() {
        const multiplier = 38833;
        const randomValue = Math.floor(Math.random() * 2 ** 32) + 1;
        return randomValue * multiplier;
    }

    function generateSignedUuid(uuid, version, offset, maBig, maSi) {
        let i = 0;
        let signedUuid = "";

        while (!(signedUuid <= maBig && signedUuid.includes(maSi))) {
            if (++i > 100000) return "";
            signedUuid = generateUuidWithSalt(uuid, version, offset);
        }

        console.log(i);
        return signedUuid;
    }

    function generateUuidWithSalt(uuid, version, offset) {
        const data = {
            uuid: uuid,
            reunixtime: Math.round((Date.now() - offset) / 1000),
            salt: generateRandomSalt(),
        };
        const customString = generateAnotherCustomString(uuid, version);
        return base64Encode(JSON.stringify(data), customString);
    }

    async function getDySign(uuid) {
        let stateData = await getStateData();
        const { userConfig, userInfo, diffTime } = stateData;
        return generateUuidWithVersion(userInfo.uuid, userConfig.version, diffTime);
    }

    async function getMaSign(uuid) {
        let stateData = await getStateData();
        const { userConfig, userInfo, diffTime } = stateData;
        return generateSignedUuid(userInfo.uuid || "", userConfig.version, diffTime, userConfig.version_ma_big, userConfig.version_ma_si);
    }

    return {
        getDySign: getDySign,
        getMaSign: getMaSign,
    };

})();


async function Main() {
    if (magicJS.isStrictRequest) {
        magicJS.checkRecordRequestBody();
    }
    if (magicJS.isRequest) {
        checkHandleRequest();
    } else {
        updateHeaders();
    }
    magicJS.notification.msg('');
    if (gRetBody) {
        magicJS.done({
            body: JSON.stringify(gRetBody)
        });
    } else {
        magicJS.done();
    }
}

function checkHandleRequest() {
    const url = $request.url;
    const path = $request.path;
    magicJS.logger.info(`请求url=${url}#${$request.method}`);
    magicJS.logger.info(`请求body=${magicJS.getRequestBody()}`);
    if ($request && $request.method != 'OPTIONS') {
        switch (path) {
            case '/GetUserInfo':
                handleUserInfo();
                break;
            case '/user/home/info':
                handleUserHomeInfo();
                break;
            default:
                break;
        }
    }
}

function handleHeaders() {
}

function updateHeaders() {
}


function getResponsePlainData() {
    let data = magicJS.getResponseBody();
    if (!data) {
        return;
    }
    try {
        return JSON.parse(data);
    } catch (err) {
        magicJS.logger.info(data);
        magicJS.logger.error(err);
    }
}

function getRequestPlainData() {
    let data = magicJS.getRequestBody();
    let reqData = null;
    if (data) {
        reqData = JSON.parse(data);
    } else {
        reqData = magicJS.parseQueryStr($request.url);
    }
    return reqData;
}

function getQueryPlainData() {
    let params = magicJS.parseQueryStr($request.url);
    return params;
}


function handleUserInfo() {
    let rspData = getResponsePlainData();
    if (!rspData) {
        return;
    }
    if (rspData.code != 200) {
        return;
    }
    let allUserDict = magicJS.data.read(MGEcomConstKey.AllUserInfo, {});
    const userInfo = rspData.data;
    if (userInfo) {
        let uuid = userInfo.uuid;
        let mobile = userInfo.relate_mobile;
        if (userInfo.ticket) {
            allUserDict[uuid] = userInfo;
            allUserDict[mobile] = userInfo;
            setDiffTime(Date.now() - 1e3 * homeInfo.unixtime);
        } else {
            delete allUserDict[uuid];
            delete allUserDict[mobile];
        }
    } else {
        let reqData = getQueryPlainData();
        let uuid = reqData.uuid;
        let oldUserInfo = allUserDict[uuid];
        if (oldUserInfo) {
            let mobile = oldUserInfo.relate_mobile;
            delete allUserDict[uuid];
            delete allUserDict[mobile];
        }
    }
    magicJS.data.write(MGEcomConstKey.AllUserInfo, allUserDict);
}

function handleUserHomeInfo() {
    let rspData = getResponsePlainData();
    if (!rspData) {
        return;
    }
    if (rspData.code != 200) {
        return;
    }
    const homeInfo = rspData.data;

    let allConfigDict = magicJS.data.read(MGEcomConstKey.AllUserConfig, {});
    let reqData = getQueryPlainData();
    let uuid = reqData.uuid;
    allConfigDict[uuid] = homeInfo;
    magicJS.data.write(MGEcomConstKey.AllUserConfig, allConfigDict);

    setDiffTime(Date.now() - 1e3 * homeInfo.unixtime);
}

async function getStateData(uuid) {
    let state = gAllStateData[uuid];
    if (!state) {
        state = {
            diffTime: 0,
            userInfo: null,
            userConfig: null,
        };
        gAllStateData[uuid] = state;
    };
    if (!state.userInfo) {
        state.userConfig = await getUserConfig(uuid);
    }
    if (!state.userInfo) {
        state.userInfo = await getUserInfo(uuid);
    }
    return state;
}

async function getUserConfig(uuid) {
    let allUserDict = magicJS.data.read(MGEcomConstKey.AllUserInfo, {});
    let userConfig = allUserDict[uuid];
    if (!userConfig) {

    }
    return userConfig;
}

async function getUserInfo(uuid) {
    let allConfigDict = magicJS.data.read(MGEcomConstKey.AllUserConfig, {});
    let userInfo = allConfigDict[uuid];
    if (!userInfo) {

    }
    return userInfo;
}

async function getDiffTime() {
    return 0;

}

function setDiffTime(diffTime) {

}


Main().catch((e) => magicJS.logger.log(`-\n ${e}`)).finally(() => magicJS.done());