process.env.NODE_ENV = "development";

import electron from "electron";
import chalk from "chalk";
import {join} from "path";
import {watch} from "rollup";
import Portfinder from "portfinder";
import config from "../config";
import {say} from "cfonts";
import {spawn} from "child_process";
import type {ChildProcess} from "child_process";
import rollupOptions from "./rollup.config";

const mainOpt = rollupOptions(process.env.NODE_ENV, "main");
const preloadOpt = rollupOptions(process.env.NODE_ENV, "preload");

let electronProcess: ChildProcess | null = null;
let manualRestart = false;

function logStats(proc: string, data: any) {
	let log = "";

	log += chalk.yellow.bold(
		`┏ ${proc} ${config.dev.chineseLog ? "编译过程" : "Process"} ${new Array(
			19 - proc.length + 1
		).join("-")}`
	);
	log += "\n\n";

	if (typeof data === "object") {
		data
			.toString({
				colors: true,
				chunks: false,
			})
			.split(/\r?\n/)
			.forEach((line) => {
				log += "  " + line + "\n";
			});
	} else {
		log += `  ${data}\n`;
	}

	log += "\n" + chalk.yellow.bold(`┗ ${new Array(28 + 1).join("-")}`) + "\n";
	console.log(log);
}

function removeJunk(chunk: string) {
	if (config.dev.removeElectronJunk) {
		// Example: 2018-08-10 22:48:42.866 Electron[90311:4883863] *** WARNING: Textured window <AtomNSWindow: 0x7fb75f68a770>
		if (
			/\d+-\d+-\d+ \d+:\d+:\d+\.\d+ Electron(?: Helper)?\[\d+:\d+] /.test(chunk)
		) {
			return false;
		}

		// Example: [90789:0810/225804.894349:ERROR:CONSOLE(105)] "Uncaught (in promise) Error: Could not instantiate: ProductRegistryImpl.Registry", source: chrome-devtools://devtools/bundled/inspector.js (105)
		if (/\[\d+:\d+\/|\d+\.\d+:ERROR:CONSOLE\(\d+\)\]/.test(chunk)) {
			return false;
		}

		// Example: ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
		if (/ALSA lib [a-z]+\.c:\d+:\([a-z_]+\)/.test(chunk)) {
			return false;
		}
	}

	return chunk;
}

function startRenderer(): Promise<void> {
	return new Promise((resolve, reject) => {
		Portfinder.basePort = config.dev.port || 9080;
		Portfinder.getPort(async (err, port) => {
			if (err) {
				reject("PortError:" + err);
			} else {
				const {createServer} = await import("vite");
				const server = await createServer({
					configFile: join(__dirname, "vite.config.mts"),
				});
				process.env.PORT = String(port);
				await server.listen(port);
				console.log(
					"\n\n" +
					chalk.blue(
						`${
							config.dev.chineseLog
								? "  正在准备主进程，请等待..."
								: "  Preparing main process, please wait..."
						}`
					) +
					"\n\n"
				);
				resolve();
			}
		});
	});
}

function startMain(): Promise<void> {
	return new Promise((resolve, reject) => {
		const MainWatcher = watch(mainOpt);
		MainWatcher.on("change", (filename) => {
			// 主进程日志部分
			logStats(
				`${config.dev.chineseLog ? "主进程文件变更" : "Main-FileChange"}`,
				filename
			);
		});
		MainWatcher.on("event", (event) => {
			if (event.code === "END") {
				if (electronProcess) {
					manualRestart = true;
					electronProcess.pid && process.kill(electronProcess.pid);
					electronProcess = null;
					startElectron();

					setTimeout(() => {
						manualRestart = false;
					}, 5000);
				}

				resolve();
			} else if (event.code === "ERROR") {
				reject(event.error);
			}
		});
	});
}

function startPreload(): Promise<void> {
	console.log(
		"\n\n" +
		chalk.blue(
			`${
				config.dev.chineseLog
					? "  正在准备预加载脚本，请等待..."
					: "  Preparing preLoad File, please wait..."
			}`
		) +
		"\n\n"
	);
	return new Promise((resolve, reject) => {
		const PreloadWatcher = watch(preloadOpt);
		PreloadWatcher.on("change", (filename) => {
			// 预加载脚本日志部分
			logStats(
				`${
					config.dev.chineseLog ? "预加载脚本文件变更" : "preLoad-FileChange"
				}`,
				filename
			);
		});
		PreloadWatcher.on("event", (event) => {
			if (event.code === "END") {
				if (electronProcess) {
					manualRestart = true;
					electronProcess.pid && process.kill(electronProcess.pid);
					electronProcess = null;
					startElectron();

					setTimeout(() => {
						manualRestart = false;
					}, 5000);
				}

				resolve();
			} else if (event.code === "ERROR") {
				reject(event.error);
			}
		});
	});
}

function startElectron() {
	let args = [
		"--inspect=5858",
		join(__dirname, "../dist/electron/main/main.js"),
	];

	// detect yarn or npm and process commandline args accordingly
	if (process.env.npm_execpath?.endsWith("yarn.js")) {
		args = args.concat(process.argv.slice(3));
	} else if (process.env.npm_execpath?.endsWith("npm-cli.js")) {
		args = args.concat(process.argv.slice(2));
	}

	electronProcess = spawn(electron as any, args);

	electronProcess.stdout?.on("data", (data: string) => {
		electronLog(removeJunk(data), "blue");
	});
	electronProcess.stderr?.on("data", (data: string) => {
		electronLog(removeJunk(data), "red");
	});

	electronProcess.on("close", () => {
		if (!manualRestart) process.exit();
	});
}

function electronLog(data: any, color: string) {
	if (data) {
		let log = "";
		data = data.toString().split(/\r?\n/);
		data.forEach((line) => {
			log += `  ${line}\n`;
		});
		console.log(
			chalk[color].bold(
				`┏ ${
					config.dev.chineseLog ? "主程序日志" : "Electron"
				} -------------------`
			) +
			"\n\n" +
			log +
			chalk[color].bold("┗ ----------------------------") +
			"\n"
		);
	}
}

function greeting(arg: string) {
	const cols = process.stdout.columns;
	let text: string;
	text = arg ? arg : "Hi-Sass";
	let length = text ? text.length : 0;
	if (cols > 104) {
		text = length > 104 ? text.slice(0, 103) : text;
	} else if (cols > 76) {
		text = length > 76 ? text.slice(0, 75) : text;
	} else text = "";

	if (text) {
		say(text, {
			colors: ["yellow"],
			font: "simple3d",
			space: false,
		});
	} else console.log(chalk.yellow.bold("\n  electron-vite"));
	console.log(
		chalk.blue(
			`${config.dev.chineseLog ? "  准备启动..." : "  getting ready..."}`
		) + "\n"
	);
}

async function init() {
	greeting("Hi-Sass");

	try {
		await startRenderer();
		await startMain();
		await startPreload();
		startElectron();
	} catch (error) {
		console.error(error);
		process.exit(1);
	}
}

init();