const vscode = require("vscode");
const util = require("node:util");
const chp = require("child_process");
const execP = util.promisify(chp.exec);

/**
 * @param {vscode.ExtensionContext} context
 */
async function activate(context) {
	let lastGitCommitMsg = "",
		isOutPutChannelVisible = false;

	const logOutputChannel = vscode.window.createOutputChannel("gitDWMSimpleUse", {
		log: true,
		logLevel: 3,
	});
	logOutputChannel.hide();
	const statusBarItem = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left, 100);
	statusBarItem.text = "$(remote) GitDWMSU";
	statusBarItem.command = "gitDWMSimpleUse.ToggleOutputChannel";

	context.subscriptions.push(
		vscode.commands.registerCommand("gitDWMSimpleUse.ToggleOutputChannel", () => {
			if (isOutPutChannelVisible) logOutputChannel.hide();
			else logOutputChannel.show(true);
			isOutPutChannelVisible = !isOutPutChannelVisible;
		})
	);

	if (await vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).get("isEnabled")) {
		statusBarItem.show();

		try {
			process.chdir(vscode.workspace.workspaceFolders[0].uri.fsPath);
		} catch (err) {
			vscode.window.showErrorMessage(err);
		}

		const { stdout } = await execP(`git rev-parse --is-inside-work-tree || echo false`, {
			cwd: vscode.workspace.workspaceFolders[0].uri.fsPath,
		});

		if (stdout.trim() !== "true")
			vscode.window
				.showErrorMessage("Not a git repository", "Disable extension for current workspace")
				.then((e) => {
					if (e == undefined) return;
					vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).update("isEnabled", false);
					statusBarItem.hide();
				});
		else {
			statusBarItem.text = "$(loading~spin) GitDWMSU";
			let spawnGP = chp.spawn("git pull --ff 2>&1 || echo 'error'", {
				cwd: vscode.workspace.workspaceFolders[0].uri.fsPath,
				shell: true,
			});
			spawnGP.stdout.on("data", (data) => {
				if (data.toString().trim() == "error") {
					statusBarItem.backgroundColor = new vscode.ThemeColor("statusBarItem.errorBackground");
					setTimeout(() => {
						statusBarItem.backgroundColor = new vscode.ThemeColor("statusBarItem.background");
					}, 5000);
					vscode.window.showErrorMessage("[openPull] " + "An error occured", "Show").then((e) => {
						if (e == "Show") {
							logOutputChannel.show(true);
							isOutPutChannelVisible = true;
						}
					});
					return;
				}
				logOutputChannel.info("[openPull] " + data.toString());
			});
			spawnGP.stderr.on("data", (data) => {
				logOutputChannel.error("[openPull] " + data.toString());
			});
			spawnGP.on("close", (code) => {
				logOutputChannel.trace("[openPull] " + `child process exited with code ${code}`);
				statusBarItem.text = "$(remote) GitDWMSU";
			});
		}
	}

	let disposable = vscode.commands.registerCommand("dwm-git-simpleuse.fullPush", async function () {
		if (!(await vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).get("isEnabled"))) {
			vscode.window
				.showErrorMessage("Extension disabled", "Enable extension for current workspace")
				.then((e) => {
					if (e == undefined) return;
					vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).update("isEnabled", true);
					statusBarItem.show();
				});
			return;
		}

		const gitCommitMsg = await vscode.window.showInputBox({
			placeHolder: "commit message",
			prompt: "choose your commit message",
			value: lastGitCommitMsg.incrementSuffixe(),
		});
		if (gitCommitMsg === undefined) return;
		gitCommitMsg.trim();
		if (!gitCommitMsg.length) {
			vscode.window.showErrorMessage("commit message needed");
			return;
		}
		lastGitCommitMsg = gitCommitMsg;

		statusBarItem.text = "$(loading~spin) GitDWMSU";
		let spawnFP = chp.spawn(
			`git add . && git commit -am "${gitCommitMsg.replace(
				/"/g,
				'\\"'
			)}" && git pull --ff && git push 2>&1 || echo "error"`,
			{ cwd: vscode.workspace.workspaceFolders[0].uri.fsPath, shell: true }
		);
		spawnFP.stdout.on("data", (data) => {
			if (data.toString().trim() == "error") {
				statusBarItem.backgroundColor = new vscode.ThemeColor("statusBarItem.errorBackground");
				setTimeout(() => {
					statusBarItem.backgroundColor = new vscode.ThemeColor("statusBarItem.background");
				}, 5000);
				vscode.window.showErrorMessage("[fullPush] " + "An error occured", "Show").then((e) => {
					if (e == "Show") {
						logOutputChannel.show(true);
						isOutPutChannelVisible = true;
					}
				});
				return;
			}
			logOutputChannel.info("[fullPush] " + data.toString());
		});
		spawnFP.stderr.on("data", (data) => {
			logOutputChannel.error("[fullPush] " + data.toString());
		});
		spawnFP.on("close", (code) => {
			logOutputChannel.trace("[fullPush] " + `child process exited with code ${code}`);
			statusBarItem.text = "$(remote) GitDWMSU";
		});
	});
	context.subscriptions.push(disposable);

	disposable = vscode.commands.registerCommand("dwm-git-simpleuse.initRepo", async function () {
		if (!(await vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).get("isEnabled"))) {
			vscode.window
				.showErrorMessage("Extension disabled", "Enable extension for current workspace")
				.then((e) => {
					if (e == undefined) return;
					vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).update("isEnabled", true);
					statusBarItem.show();
				});
			return;
		}

		const gitLink = await vscode.window.showInputBox({
			placeHolder: "git repo link",
			prompt: "Initialize a git repository",
			value: await vscode.env.clipboard.readText(),
		});
		if (gitLink === undefined) return;
		gitLink.trim();
		if (!gitLink.match(/^https?:\/\/\S+\.git$/).length) {
			vscode.window.showErrorMessage("Link needed");
			return;
		}

		let gitBranch = await vscode.window.showInputBox({
			placeHolder: "git branch",
			prompt: "choose wich branch to use (defaults to 'main')",
			value: "main",
		});
		if (gitBranch === undefined) return;
		gitBranch.trim();
		if (!gitBranch.length) gitBranch = "main";

		statusBarItem.text = "$(loading~spin) GitDWMSU";
		let spawnIER = chp.spawn(
			`git init && git remote add origin ${gitLink} && git fetch && git checkout -ft origin/${gitBranch} 2>&1 || echo "error"`,
			{ cwd: vscode.workspace.workspaceFolders[0].uri.fsPath, shell: true }
		);
		spawnIER.stdout.on("data", (data) => {
			if (data.toString().trim() == "error") {
				statusBarItem.backgroundColor = new vscode.ThemeColor("statusBarItem.errorBackground");
				setTimeout(() => {
					statusBarItem.backgroundColor = new vscode.ThemeColor("statusBarItem.background");
				}, 5000);
				vscode.window.showErrorMessage("[initRepo] " + "An error occured", "Show").then((e) => {
					if (e == "Show") {
						logOutputChannel.show(true);
						isOutPutChannelVisible = true;
					}
				});
				return;
			}
			logOutputChannel.info("[initRepo] " + data.toString());
		});
		spawnIER.stderr.on("data", (data) => {
			logOutputChannel.error("[initRepo] " + data.toString());
		});
		spawnIER.on("close", (code) => {
			logOutputChannel.trace("[initRepo] " + `child process exited with code ${code}`);
			statusBarItem.text = "$(remote) GitDWMSU";
		});
	});
	context.subscriptions.push(disposable);
}

// This method is called when your extension is deactivated
function deactivate() {}

module.exports = {
	activate,
	deactivate,
};

String.prototype.incrementSuffixe = function () {
	const match = this.match(/\s*\((\d+)\)\s*$/);
	return match
		? this.replace(match[0], ` (${+match[1] + 1})`)
		: this.trim().length
		? this + " (1)"
		: this.trim();
};