//
// Import Requirements ...
const execSync = require("child_process").execSync;
const XFileTools = require("./Documents/JsModules/x-file.tools");
const XShellTools = require("./Documents/JsModules/x-shell.tools");
const XColorTools = require("./Documents/JsModules/x-color.tools");

//
handleCompile();
async function handleCompile() {
    //
    var foldersPath = [
        "Libraries", // Required Libraries
        "Classes", // Required Classes
        "Indicators", // Required Indicators
        "Helpers", // Indicator's Helpers Classes
        "Parsers", // Strategies Filters based on Conditions
        "Strategies", // Strategies Classes which Provides Signals
        "Experts", // Expert Advisers 
        "XCATBEA", // XCATBEA Projects ...
    ];

    //
    for (const path of foldersPath) {
        //
        const fSourcePath = XFileTools.joinPath(".", path);
        const filesToCompile = await XFileTools.extractFiles(fSourcePath, [".mq5", ".mq4"]);
        for (const f of filesToCompile) {
            //
            // Log ...
            console.log(
                XColorTools.applyForegroundColor("try to Compile: ", XColorTools.COLOR_NAMES.Yellow),
                XColorTools.applyForegroundColor(f, XColorTools.COLOR_NAMES.Blue)
            );

            //
            await recursiveTriesToCompileFile(f, 0);
        }
    }
}

/**
 * try to compile a file ...
 * @param {string} f 
 * @param {number} numberOfTries 
 */
async function recursiveTriesToCompileFile(f = "", numberOfTries = 0) {
    //
    let result = await handleFileCompile(f);
    if (result) {
        //
        const msg = "compiled successfully ...";
        console.log(XColorTools.applyForegroundColor(msg, XColorTools.COLOR_NAMES.Green));
    } else {
        //
        if (numberOfTries < 10) {
            //
            numberOfTries++;

            //
            const msg = "retry (" + (numberOfTries + 1) + ") ...";
            console.log(XColorTools.applyForegroundColor(msg, XColorTools.COLOR_NAMES.LightMagenta));
            await recursiveTriesToCompileFile(f, numberOfTries);
        } else {
            //
            const msg = "failed ...";
            console.log(XColorTools.applyForegroundColor(msg, XColorTools.COLOR_NAMES.Red));
            throw msg;
        }
    }
}

/**
 * execute compile task on Specific File ...
 * @param {string} f file path to Execute Compile task ...
 * @returns 
 */
async function handleFileCompile(f = "") {
    //
    let result = false;

    //
    let exResult = await compileMQLFile(f);
    if (exResult.includes("0 errors")) {
        result = true;
    } else {
        result = false;
    }

    //
    return result;
}

/**
 * Compile Specific MQL File ...
 * 
 * @param {string} path MQL file path ...
 * @returns 
 */
async function compileMQLFile(path = "") {
    //
    // Check File Exists ...
    const isExists = XFileTools.isFileExists(path);
    if (!isExists) {
        //
        const msg = "file not found ...";
        console.log(XColorTools.applyForegroundColor(msg, XColorTools.COLOR_NAMES.Red));
        throw msg;
    }

    //
    const ext = XFileTools.getFileExtension(path);
    if (ext !== ".mq5" && ext !== "mq4") {
        //
        const msg = "invalid file extension ...";
        console.log(XColorTools.applyForegroundColor(msg, XColorTools.COLOR_NAMES.Red));
        throw msg;
    }

    //
    const cwd = __dirname;
    const cmd = "compile.cmd " + path;

    //
    const result = await XShellTools.execute(cmd, cwd);
    return result;
}