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 = "";

	if (await vscode.workspace.getConfiguration("dwm-git-simpleuse", 2).get("isEnabled")) {
		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);
				});
		else
			chp.execFile("git", ["pull", "--ff"], (err, stdout, stderr) => {
				if (err) {
					vscode.window.showErrorMessage("GITPULL : " + err.message);
					return;
				}
				if (stderr) {
					vscode.window.showErrorMessage("GITPULL : " + stderr);
					return;
				}
				vscode.window.showInformationMessage("GITPULL : " + stdout);
			});
	}

	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);
				});
			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;

		chp.exec(
			`git add . && git commit -am "${gitCommitMsg.replace(
				/"/g,
				'\\"'
			)}" && git pull --ff && git push`,
			{ cwd: vscode.workspace.workspaceFolders[0].uri.fsPath },
			(err, stdout, stderr) => {
				if (err) {
					vscode.window.showErrorMessage(err.message);
					return;
				}
				if (stderr) {
					vscode.window.showErrorMessage(stderr);
					return;
				}
				vscode.window.showInformationMessage(stdout);
			}
		);
	});
	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);
				});
			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";

		chp.exec(
			`git init && git remote add origin ${gitLink} && git fetch && git checkout -ft origin/${gitBranch}`,
			{ cwd: vscode.workspace.workspaceFolders[0].uri.fsPath },
			(err, stdout, stderr) => {
				if (err) {
					vscode.window.showErrorMessage(err.message);
					return;
				}
				if (stderr) {
					vscode.window.showErrorMessage(stderr);
					return;
				}
				vscode.window.showInformationMessage(stdout);
			}
		);
	});
	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();
};