const fs = require("fs");

const srcName = process.argv[2];

const sourceCode = fs.readFileSync(srcName).toString();

const clzName = /BI\.(.*?)\s\=\sBI\.inherit\(/.exec(sourceCode)[1];

const superName = /inherit\(BI\.(.*?),/.exec(sourceCode)[1];

// const xtype = /BI.shortcut\(\"(.*?)\"/.exec(sourceCode)[1];

const collection = {
    "static": {},
    attr: {},
};

const BI = {
    inherit(_, options) {
        collection.methods = Object.keys(options)
            .filter(key => typeof options[key] === "function")
            .map(key => options[key]);
        Object.keys(options)
            .filter(key => typeof options[key] !== "function")
            .forEach(key => {
                collection.attr[key] = options[key];
            });

        return collection.static;
    },
    shortcut(xtype) {
        collection.xtype = xtype;
    },
};

eval(sourceCode);

let M = "";
let E = "";
let I = "";
let A = "";

const coreImport = {
    shortcut: true,
};

if (superName === "Widget") {
    coreImport.Widget = true;
}

Object.keys(collection.attr).forEach(key => {
    A = `${key} = ${JSON.stringify(collection.attr[key])};`;
});

// 静态方法
Object.keys(collection.static).forEach(key => {
    E += `\tstatic ${key} = "${collection.static[key]}"\n`;
});

// 对函数进行替换
collection.methods.forEach(el => {
    let f = `${el.toString().replace(/^function/, el.name)}\n`;

    // 换 BI.Button.superclass
    f = f.replace(`BI.${clzName}.superclass`, "super");
    // 换 super._defaultConfig
    f = f.replace(
        `super\._defaultConfig\.apply\(this\,\sarguments\)`,
        "super._defaultConfig(arguments)"
    );
    // 换 super.xxx.apply
    f = f.replace(/super\.(.*?)\.apply\(this\,\sarguments\)/, a => {
        const f = /super\.(.*?)\.apply\(this\,\sarguments\)/.exec(a);

        return `super.${f[1]}(...arguments)`;
    });

    const target = [
        "isNull",
        "toPix",
        "isKey",
        "isObject",
        "map",
        "extend",
        "isFunction",
        "isEmptyArray",
        "isArray",
        "Controller",
        clzName,
        "createWidget",
        "Events",
        "emptyFn",
        "nextTick",
        "bind",
        "i18nText",
        "isNotNull",
        "isString",
        "isNumber",
        "isEmpty",
    ];

    target.forEach(t => {
        const arr = f.split(`BI.${t}`);
        // nodejs 低版本没有 replaceAll
        if (arr.length > 1) {
            if (t !== clzName) coreImport[t] = true;
            f = arr.join(t);
        }
    });

    M += `${f}\n`;
});

Object.keys(coreImport).forEach(el => {
    I += `${el},`;
});

const outputCode = `
import {${I}} from "@/core"

@shortcut()
export class ${clzName} extends ${superName} {
\tstatic xtype = "${collection.xtype}"

${A}

${E}

${M}
}
`;

// fs.writeFileSync(`${srcName}.js.raw`, sourceCode);
fs.writeFileSync(srcName, outputCode);