import * as fs from "fs-extra-plus";
import * as path from "path";

//生成eval的gen_code
let eval_gen_code = fs.readFileSync("src\\Common\\eval.ts", "utf8");
const eval_gen_code_reg = /\/\/eval_gen_code(?:[\s\S])*?\/\/eval_gen_code/g;
eval_gen_code = eval_gen_code.match(eval_gen_code_reg)[0];
//cjs的gen_code
let eval_gen_code_cjs = eval_gen_code.replaceAll("MathUtils", "three.MathUtils");

function replace_api_file(filePath: string, isCjs = false): Promise<void>
{
    if (!fs.existsSync(filePath)) return;
    return new Promise((res, rej) =>
    {
        fs.readFile(filePath, "utf8", (err, data) =>
        {
            if (err)
            {
                console.log("读取失败" + err);
                res();
                return;
            }

            data = data.replaceAll("require(\"../GLSL/GoodchSimple.vs\")", "\"\"");
            data = data.replaceAll("require(\"../GLSL/GoodchSimple.fs\")", "\"\"");
            data = data.replaceAll("require(\"../GLSL/GoodchSimple2.fs\")", "\"\"");

            data = data.replaceAll("require(\"../GLSL/GoodchSimpleLogBuf.vs\")", "\"\"");
            data = data.replaceAll("require(\"../GLSL/GoodchSimpleLogBuf.fs\")", "\"\"");

            data = data.replaceAll("require(\"./GoodchSimple.vs\")", "\"\"");
            data = data.replaceAll("require(\"./GoodchSimple.fs\")", "\"\"");

            data = data.replaceAll("import { iaop } from 'xaop';", "function iaop() { };");
            data = data.replaceAll(/^import.*'mobx';\s*$/gm, "function observable() { };\r\nfunction toJS() { };");

            data = data.replaceAll("//eval_gen_code", isCjs ? eval_gen_code_cjs : eval_gen_code);

            fs.writeFile(filePath, data, err =>
            {
                if (err)
                    console.error(filePath + "操作失败!");
                res();
            });
        });
    });
};

function TsIgnore(filePath: string)
{
    if (!fs.existsSync(filePath)) return;
    let src = fs.readFileSync(filePath, "utf8");
    src = src.replaceAll("export interface", "//@ts-ignore\r\nexport interface");
    fs.writeFileSync(filePath, src);
}

async function main()
{
    if (fs.existsSync("./api"))
    {
        await replace_api_file(path.resolve(__dirname, "../api/api.cjs.js"), true);
        await replace_api_file(path.resolve(__dirname, "../api/api.esm.js"));
    }

    if (fs.existsSync("./ue4_api"))
    {
        await replace_api_file(path.resolve(__dirname, "../ue4_api/api.cjs.js"), true);
        await replace_api_file(path.resolve(__dirname, "../ue4_api/api.esm.js"));

        fs.copy(path.resolve(__dirname, "../ue4_api"), path.resolve(__dirname, "../../webcad_ue4_api"));

        TsIgnore(path.resolve(__dirname, "../ue4_api/types/DatabaseServices/Room/Entity/Wall/RoomWallArc.d.ts"));
        TsIgnore(path.resolve(__dirname, "../ue4_api/types/DatabaseServices/Room/Entity/Wall/RoomWallBase.d.ts"));
        TsIgnore(path.resolve(__dirname, "../ue4_api/types/DatabaseServices/Room/Entity/Wall/RoomWallLine.d.ts"));
        TsIgnore(path.resolve(__dirname, "../ue4_api/types/DatabaseServices/Room/Entity/Wall/Hole/RoomHoleLine.d.ts"));
    }
}
main();