<?php

namespace app\admin\command;

use think\console\Command;
use think\console\Input;
use think\console\input\Option;
use think\console\Output;
use think\Exception;

class Min extends Command
{

 /**
 * 路径和文件名配置
 */
 protected $options = [
 'cssBaseUrl' => 'public/assets/css/',
 'cssBaseName' => '{module}',
 'jsBaseUrl' => 'public/assets/js/',
 'jsBaseName' => 'require-{module}',
 ];

 protected function configure()
 {
 $this
 ->setName('min')
 ->addOption('module', 'm', Option::VALUE_REQUIRED, 'module name(frontend or backend),use \'all\' when build all modules', null)
 ->addOption('resource', 'r', Option::VALUE_REQUIRED, 'resource name(js or css),use \'all\' when build all resources', null)
 ->addOption('optimize', 'o', Option::VALUE_OPTIONAL, 'optimize type(uglify|closure|none)', 'none')
 ->setDescription('Compress js and css file');
 }

 protected function execute(Input $input, Output $output)
 {
 $module = $input->getOption('module') ?: '';
 $resource = $input->getOption('resource') ?: '';
 $optimize = $input->getOption('optimize') ?: 'none';

 if (!$module || !in_array($module, ['frontend', 'backend', 'all'])) {
 throw new Exception('Please input correct module name');
 }
 if (!$resource || !in_array($resource, ['js', 'css', 'all'])) {
 throw new Exception('Please input correct resource name');
 }

 $moduleArr = $module == 'all' ? ['frontend', 'backend'] : [$module];
 $resourceArr = $resource == 'all' ? ['js', 'css'] : [$resource];

 $minPath = __DIR__ . DS . 'Min' . DS;
 $publicPath = ROOT_PATH . 'public' . DS;
 $tempFile = $minPath . 'temp.js';

 $nodeExec = '';

 if (!$nodeExec) {
 if (IS_WIN) {
 // Winsows下请手动配置配置该值,一般将该值配置为 '"C:\Program Files\nodejs\node.exe"',除非你的Node安装路径有变更
 $nodeExec = 'C:\Program Files\nodejs\node.exe';
 if (file_exists($nodeExec)) {
 $nodeExec = '"' . $nodeExec . '"';
 } else {
 // 如果 '"C:\Program Files\nodejs\node.exe"' 不存在,可能是node安装路径有变更
 // 但安装node会自动配置环境变量,直接执行 '"node.exe"' 提高第一次使用压缩打包的成功率
 $nodeExec = '"node.exe"';
 }
 } else {
 try {
 $nodeExec = exec("which node");
 if (!$nodeExec) {
 throw new Exception("node environment not found!please install node first!");
 }
 } catch (Exception $e) {
 throw new Exception($e->getMessage());
 }
 }
 }

 foreach ($moduleArr as $mod) {
 foreach ($resourceArr as $res) {
 $data = [
 'publicPath' => $publicPath,
 'jsBaseName' => str_replace('{module}', $mod, $this->options['jsBaseName']),
 'jsBaseUrl' => $this->options['jsBaseUrl'],
 'cssBaseName' => str_replace('{module}', $mod, $this->options['cssBaseName']),
 'cssBaseUrl' => $this->options['cssBaseUrl'],
 'jsBasePath' => str_replace(DS, '/', ROOT_PATH . $this->options['jsBaseUrl']),
 'cssBasePath' => str_replace(DS, '/', ROOT_PATH . $this->options['cssBaseUrl']),
 'optimize' => $optimize,
 'ds' => DS,
 ];

 //源文件
 $from = $data["{$res}BasePath"] . $data["{$res}BaseName"] . '.' . $res;
 if (!is_file($from)) {
 $output->error("{$res} source file not found!file:{$from}");
 continue;
 }
 if ($res == "js") {
 $content = file_get_contents($from);
 preg_match("/require\.config\(\{[\r\n]?[\n]?+(.*?)[\r\n]?[\n]?}\);/is", $content, $matches);
 if (!isset($matches[1])) {
 $output->error("js config not found!");
 continue;
 }
 $config = preg_replace("/(urlArgs|baseUrl):(.*)\n/", '', $matches[1]);
 $data['config'] = $config;
 }
 // 生成压缩文件
 $this->writeToFile($res, $data, $tempFile);

 $output->info("Compress " . $data["{$res}BaseName"] . ".{$res}");

 // 执行压缩
 $command = "{$nodeExec}\"{$minPath}r.js\" -o \"{$tempFile}\" >> \"{$minPath}node.log\"";
 if ($output->isDebug()) {
 $output->warning($command);
 }
 echo exec($command);
 }
 }

 if (!$output->isDebug()) {
 @unlink($tempFile);
 }

 $output->info("Build Successed!");
 }

 /**
 * 写入到文件
 * @param string $name
 * @param array $data
 * @param string $pathname
 * @return mixed
 */
 protected function writeToFile($name, $data, $pathname)
 {
 $search = $replace = [];
 foreach ($data as $k => $v) {
 $search[] = "{%{$k}%}";
 $replace[] = $v;
 }
 $stub = file_get_contents($this->getStub($name));
 $content = str_replace($search, $replace, $stub);

 if (!is_dir(dirname($pathname))) {
 mkdir(strtolower(dirname($pathname)), 0755, true);
 }
 return file_put_contents($pathname, $content);
 }

 /**
 * 获取基础模板
 * @param string $name
 * @return string
 */
 protected function getStub($name)
 {
 return __DIR__ . DS . 'Min' . DS . 'stubs' . DS . $name . '.stub';
 }
}