const vscode = require('vscode');
const path = require('path');
const { exec } = require('child_process');

// 组件列表
// components list
const componentListOrgin = require('./menuList');
const componentList = ArrChildFun(componentListOrgin);

async function activate() {
	// 如果没有设置，返回undefined
	// If not set, return undefined
	const result = vscode.workspace.getConfiguration().get('STDF');
	// 获取插件语言
	// Get plugin language
	const isZh = result.English ? false : true;

	// 读取当前工程的 package.json 文件
	// Read the package.json file of the current project
	const packageJson = require(path.join(vscode.workspace.rootPath, 'package.json'));

	// 判断当前工程是否引入了 stdf 组件库
	// Determine whether the current project has introduced the stdf component library
	const isImportStdf = packageJson?.dependencies?.stdf || packageJson?.devDependencies?.stdf ? true : false;

	// 如果 isImportStdf 为 true 时，读取 stdf 组件库的版本号做为当前版本号
	// If isImportStdf is true, read the version number of the stdf component library as the current version number
	let currentVersion = isImportStdf ? packageJson.dependencies?.stdf || packageJson.devDependencies?.stdf : '';
	// 如果 currentVersion 开头为 ^，则去掉 ^
	// If currentVersion starts with ^, remove ^
	if (currentVersion.startsWith('^')) {
		currentVersion = currentVersion.slice(1);
	}

	// stdf 组件库的最新版本号
	// The latest version number of the stdf component library
	const latestVersion = (await getLatestVersion('stdf')) || (isZh ? '获取失败' : 'Failed to get');

	// 当前文件是 .svelte 文件时且 isImportStdf 为 true 时，才注册悬浮提示
	// When the current file is a .svelte file and isImportStdf is true, register the hover prompt
	if (vscode.window.activeTextEditor.document.languageId === 'svelte' && isImportStdf) {
		vscode.languages.registerHoverProvider('svelte', {
			provideHover(document, position) {
				// 获取当前悬浮的单词
				// Get the word currently hovering
				const word = document.getText(document.getWordRangeAtPosition(position));
				// 将单词首字母小写
				// Lowercase the first letter of the word
				const wordLower = word.charAt(0).toLowerCase() + word.slice(1);
				// 如果单词为 components 数组中的一项，则显示提示信息，内容为 ./doc/components/${wordLower}/api.md 文件的内容
				// If the word is an item in the components array, display the prompt information, and the content is the content of the ./doc/components/${wordLower}/api.md file
				if (componentList.includes(word)) {
					// 组合当前 STDF 版本和最新版本
					// Combine the current STDF version and the latest version
					const versionContent = `STDF ${isZh ? '当前' : 'Current'}：${currentVersion}   ${
						isZh ? '最新' : 'Latest'
					}：${latestVersion}   [${isZh ? '查看更新日志' : 'See changelog'}](https://stdf.design/#/guide/changelog)`;

					// 获取对应组件的 api.md 文件的路径
					// Get the path of the api.md file of the corresponding component
					const apiPath = path.join(__dirname, `./doc/components/${wordLower}/api${isZh ? '' : '_en'}.md`);

					// 读取 api.md 文件的内容
					// Read the contents of the api.md file
					const apiContent = require('fs').readFileSync(apiPath, 'utf-8');
					// 在 apiContent 后面添加示例、API、指南、组件源码的链接
					// Add links to examples, API, guides, and component source code after apiContent
					const baseUrl = 'https://stdf.design/#/components?nav=';
					const baseUrlCode = 'https://github.com/any-tdf/stdf/blob/main/packages/stdf/components/';
					const baseUrlCodeGitee = 'https://gitee.com/dufu1991/stdf/blob/main/packages/stdf/components/';
					const addContent = `**[${isZh ? '示例' : 'Demo'}](${baseUrl}${wordLower}&tab=0&lang=${
						isZh ? 'zh_CN' : 'en_US'
					})   [API](${baseUrl}${wordLower}&tab=1&lang=${isZh ? 'zh_CN' : 'en_US'})   [${
						isZh ? '指南' : 'Guide'
					}](${baseUrl}${wordLower}&tab=2&lang=${isZh ? 'zh_CN' : 'en_US'})   [${
						isZh ? '更新日志' : 'Changelog'
					}](${baseUrl}${wordLower}&tab=4&lang=${isZh ? 'zh_CN' : 'en_US'})   [${
						isZh ? '源码(GitHub)' : 'Source code(GitHub)'
					}](${baseUrlCode}${wordLower}/${word}.svelte)   [${
						isZh ? '源码(Gitee)' : 'Source code(Gitee)'
					}](${baseUrlCodeGitee}${wordLower}/${word}.svelte)**`;
					const allContent =
						versionContent + '\n\n' + '---' + '\n\n' + apiContent + '\n\n' + '---' + '\n\n' + addContent + '\n\n' + '\n\n' + '---';

					// 返回提示信息
					// Return prompt information
					return new vscode.Hover(allContent);
				}
			},
		});
	}
}

//数组处理
//Array processing
function ArrChildFun(arr) {
	let newArr = [];
	for (let e = 0; e < arr.length; e++) {
		newArr.push(...arr[e].childs);
	}
	//再将 newArr 内的 title_en 组成一维数组
	//Then the title_en in newArr is composed of one-dimensional array
	let newArr2 = [];
	for (let e = 0; e < newArr.length; e++) {
		newArr2.push(newArr[e].title_en);
	}
	return newArr2;
}

// 获取指定 npm 包的最新版本号
// Get the latest version number of the specified npm package
async function getLatestVersion(packageName) {
	return new Promise(resolve => {
		exec(`npm show ${packageName} version`, (error, stdout, stderr) => {
			if (error || stderr) {
				resolve(null);
			} else {
				resolve(stdout.trim());
			}
		});
	});
}

function deactivate() {}

module.exports = {
	activate,
	deactivate,
};