"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const http = __importStar(require("http"));
const url_1 = require("url");
const config_1 = require("./config");
const crypto_1 = require("./crypto");
const http_1 = require("./http");
const wechat_1 = require("./wechat");
const tokenCache = {};
function isNonEmptyString(value) {
    return typeof value === "string" && value.trim().length > 0;
}
async function handleToken(req, res) {
    var _a;
    const body = await (0, http_1.readJsonBody)(req);
    const appid = typeof body.appid === "string" ? body.appid.trim() : "";
    const secret = typeof body.secret === "string" ? body.secret.trim() : "";
    if (!appid || !secret) {
        (0, http_1.sendJson)(res, 400, { code: 400, msg: "Missing required fields" });
        return;
    }
    const cached = tokenCache[appid];
    if (cached && cached.expiresAt > Date.now()) {
        (0, http_1.sendJson)(res, 200, {
            access_token: cached.token,
            expires_in: Math.floor((cached.expiresAt - Date.now()) / 1000),
        });
        return;
    }
    const realSecret = secret.startsWith("SECRET") ? (0, crypto_1.decrypt)(secret.slice(6)) : secret;
    const wxUrl = `https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=${encodeURIComponent(appid)}&secret=${encodeURIComponent(realSecret)}`;
    const wxRes = await (0, wechat_1.httpsGetJson)(wxUrl);
    if (typeof wxRes.errcode === "number") {
        (0, http_1.sendJson)(res, 200, { code: wxRes.errcode, msg: (_a = wxRes.errmsg) !== null && _a !== void 0 ? _a : "" });
        return;
    }
    if (!isNonEmptyString(wxRes.access_token) || typeof wxRes.expires_in !== "number") {
        throw new Error("Invalid token response from WeChat API");
    }
    tokenCache[appid] = {
        token: wxRes.access_token,
        expiresAt: Date.now() + 7000 * 1000,
    };
    (0, http_1.sendJson)(res, 200, { ...wxRes });
}
async function handleEncrypt(req, res) {
    const body = await (0, http_1.readJsonBody)(req);
    const wechat = Array.isArray(body.wechat) ? body.wechat : [];
    if (wechat.length === 0) {
        (0, http_1.sendJson)(res, 400, { code: 400, msg: "Missing required fields" });
        return;
    }
    const encrypted = wechat.map((item) => ({
        name: typeof item.name === "string" ? item.name : "",
        appid: typeof item.appid === "string" ? item.appid : "",
        secret: "SECRET" + (0, crypto_1.encrypt)(typeof item.secret === "string" ? item.secret : ""),
    }));
    (0, http_1.sendJson)(res, 200, { code: 0, wechat: encrypted });
}
function handleInfo(authkey, res) {
    (0, http_1.sendJson)(res, 200, {
        code: 0,
        name: authkey || "note2any",
        status: "active",
        created: "",
    });
}
async function requestHandler(req, res) {
    var _a, _b;
    const method = (_a = req.method) !== null && _a !== void 0 ? _a : "GET";
    const url = new url_1.URL((_b = req.url) !== null && _b !== void 0 ? _b : "/", "http://127.0.0.1");
    const pathname = url.pathname;
    try {
        if (method === "GET" && pathname === "/") {
            (0, http_1.sendJson)(res, 200, { status: "ok", service: "note2any-wx-server" });
            return;
        }
        if (method === "POST" && pathname === "/v1/wx/token") {
            await handleToken(req, res);
            return;
        }
        if (method === "POST" && pathname === "/v1/wx/encrypt") {
            await handleEncrypt(req, res);
            return;
        }
        if (method === "GET" && pathname.startsWith("/v1/wx/info/")) {
            const authkey = decodeURIComponent(pathname.slice("/v1/wx/info/".length));
            handleInfo(authkey, res);
            return;
        }
        (0, http_1.sendJson)(res, 404, { code: 404, msg: "Not Found" });
    }
    catch (error) {
        const message = error instanceof Error ? error.message : "Unknown server error";
        console.error(`[server] ${method} ${pathname} failed: ${message}`);
        (0, http_1.sendJson)(res, 500, { code: 500, msg: message });
    }
}
const server = http.createServer((req, res) => {
    void requestHandler(req, res);
});
server.listen(config_1.config.port, () => {
    console.log(`note2any-wx-server running on port ${config_1.config.port}`);
});