<?php
// +----------------------------------------------------------------------
// | ThinkCMF [ WE CAN DO IT MORE SIMPLE ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013-2019 http://www.thinkcmf.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +---------------------------------------------------------------------
// | Author: Dean <zxxjjforever@163.com>
// +----------------------------------------------------------------------
namespace cmf\controller;

use think\exception\ValidateException;
use think\Request;
use think\Config;
use think\Loader;
use think\exception\TemplateNotFoundException;

class PluginBaseController extends BaseController
{

    /**
     * @var \cmf\lib\Plugin
     */
    private $plugin;

    /**
     * 前置操作方法列表
     * @var array $beforeActionList
     * @access protected
     */
    protected $beforeActionList = [];

    /**
     * 构造函数
     * @param Request $request Request对象
     * @access public
     */
    public function __construct(Request $request = null)
    {
        if (is_null($request)) {
            $request = Request::instance();
        }

        $this->request = $request;

        $this->getPlugin();

        $this->view = $this->plugin->getView();

        $siteInfo = cmf_get_site_info();

        $this->assign('site_info', $siteInfo);

        // 控制器初始化
        $this->initialize();
        // 老的控制器初始化 即将取消
        $this->_initialize();

        // 前置操作方法
        if ($this->beforeActionList) {
            foreach ($this->beforeActionList as $method => $options) {
                is_numeric($method) ?
                    $this->beforeAction($options) :
                    $this->beforeAction($method, $options);
            }
        }

    }

    public function getPlugin()
    {

        if (is_null($this->plugin)) {
            $pluginName   = $this->request->param('_plugin');
            $pluginName   = cmf_parse_name($pluginName, 1);
            $class        = cmf_get_plugin_class($pluginName);
            $this->plugin = new $class;
        }

        return $this->plugin;

    }

    // 初始化
    protected function _initialize()
    {
    }

    /**
     * 前置操作
     * @access protected
     * @param string $method 前置操作方法名
     * @param array $options 调用参数 ['only'=>[...]] 或者['except'=>[...]]
     */
    protected function beforeAction($method, $options = [])
    {
        if (isset($options['only'])) {
            if (is_string($options['only'])) {
                $options['only'] = explode(',', $options['only']);
            }
            if (!in_array($this->request->action(), $options['only'])) {
                return;
            }
        } elseif (isset($options['except'])) {
            if (is_string($options['except'])) {
                $options['except'] = explode(',', $options['except']);
            }
            if (in_array($this->request->action(), $options['except'])) {
                return;
            }
        }

        call_user_func([$this, $method]);
    }

    /**
     * 加载模板输出(支持:/index/index,index/index,index,空,:index,/index)
     * @access protected
     * @param string $template 模板文件名
     * @param array $vars 模板输出变量
     * @param array $replace 模板替换
     * @param array $config 模板参数
     * @return mixed|string
     * @throws \Exception
     */
    protected function fetch($template = '', $vars = [], $replace = [], $config = [])
    {
        $template = $this->parseTemplate($template);

        // 模板不存在 抛出异常
        if (!is_file($template)) {
            throw new TemplateNotFoundException('template not exists:' . $template, $template);
        }

        return $this->view->fetch($template, $vars, $replace, $config);
    }


    /**
     * 自动定位模板文件
     * @access private
     * @param string $template 模板文件规则
     * @return string
     */
    private function parseTemplate($template)
    {
        // 分析模板文件规则
        $viewEngineConfig = Config::get('template');

        $path = $this->plugin->getThemeRoot();

        $depr = $viewEngineConfig['view_depr'];

        $data       = $this->request->param();
        $controller = $data['_controller'];
        $action     = $data['_action'];

        if (0 !== strpos($template, '/')) {
            $template   = str_replace(['/', ':'], $depr, $template);
            $controller = Loader::parseName($controller);
            if ($controller) {
                if ('' == $template) {
                    // 如果模板文件名为空 按照默认规则定位
                    $template = str_replace('.', DS, $controller) . $depr . $action;
                } elseif (false === strpos($template, $depr)) {
                    $template = str_replace('.', DS, $controller) . $depr . $template;
                }
            }
        } else {
            $template = str_replace(['/', ':'], $depr, substr($template, 1));
        }
        return $path . ltrim($template, '/') . '.' . ltrim($viewEngineConfig['view_suffix'], '.');
    }

    /**
     * 渲染内容输出
     * @access protected
     * @param string $content 模板内容
     * @param array $vars 模板输出变量
     * @param array $replace 替换内容
     * @param array $config 模板参数
     * @return mixed
     */
    protected function display($content = '', $vars = [], $replace = [], $config = [])
    {
        return $this->view->display($content, $vars, $replace, $config);
    }

    /**
     * 模板变量赋值
     * @access protected
     * @param mixed $name 要显示的模板变量
     * @param mixed $value 变量的值
     * @return void
     */
    protected function assign($name, $value = '')
    {
        $this->view->assign($name, $value);
    }

    /**
     * 设置验证失败后是否抛出异常
     * @access protected
     * @param  bool $fail 是否抛出异常
     * @return $this
     */
    protected function validateFailException($fail = true)
    {
        $this->failException = $fail;
        return $this;
    }

    /**
     * 验证数据
     * @access protected
     * @param  array        $data     数据
     * @param  string|array $validate 验证器名或者验证规则数组
     * @param  array        $message  提示信息
     * @param  bool         $batch    是否批量验证
     * @param  mixed        $callback 回调方法（闭包）
     * @return array|string|true
     * @throws ValidateException
     */
    protected function validate($data, $validate, $message = [], $batch = false, $callback = null)
    {
        if (is_array($validate)) {
            $v = Loader::validate();
            $v->rule($validate);
        } else {
            if (strpos($validate, '.')) {
                // 支持场景
                list($validate, $scene) = explode('.', $validate);
            }
            $v = Loader::validate('\\plugins\\' . cmf_parse_name($this->plugin->getName()) . '\\validate\\' . $validate . 'Validate');
            if (!empty($scene)) {
                $v->scene($scene);
            }
        }

        // 是否批量验证
        if ($batch || $this->batchValidate) {
            $v->batch(true);
        }

        if (is_array($message)) {
            $v->message($message);
        }

        if ($callback && is_callable($callback)) {
            call_user_func_array($callback, [$v, &$data]);
        }

        if (!$v->check($data)) {
            if ($this->failException) {
                throw new ValidateException($v->getError());
            }
            return $v->getError();
        }

        return true;
    }

}