<?php

namespace App\Http\Controllers\Api;

use App\Http\Resources\AuthRule;
use App\Libs\MyLib;
use App\Models\AuthRuleT;
use App\Models\EmployeeGroupT;
use App\Models\EmployeeT;
use Illuminate\Http\Request;
use App\Http\Resources\AuthRuleCollection;

/**
 * @title 权限认证管理
 * @description 用户登录及权限管理
 * @package App\Http\Controllers\Api
 * @author zcstatham
 * @time 2021/1/28
 */
class AuthController extends BaseController
{

    protected $rules = [
        'login' => [
            'rules' => [
                'username' => 'required',
                'password' => 'required',
            ],
            'messages' => [
                'username.required' => '用户名不能为空',
                'password.required' => '密码不能为空'
            ],
        ],
        'modifyPassword' => [
            'rules' => [
                'id' => 'bail|min:1',
                'oldPassword' => 'required',
                'newPassword' => 'required',
            ],
            'custom' => 'exists,App\Models\EmployeeT,id'
        ],
        'resetPassword' => [
            'rules' => [
                'id' => 'bail|min:1',
            ],
            'custom' => 'exists,App\Models\EmployeeT,id'
        ],
        'EmployeeAuth' => [
            'rules' => [
                'id' => 'bail|min:1',
                'rules' => 'required'
            ],
            'custom' => 'exists,App\Models\EmployeeT,id'
        ],
        'EmployeeGroupAuth' => [
            'rules' => [
                'id' => 'bail|min:1',
                'rules' => 'required'
            ],
            'custom' => 'exists,App\Models\EmployeeGroupT,id'
        ],
        'store' => [
            'rules' => [
                'title' => 'required|max:20',
                'name' => 'bail|required|unique:App\Models\AuthRuleT|max:20',
                'method' => 'required|in:GET,POST,PUT,PATCH,DELETE',
                'group' => 'required',
                'module' => 'required',
            ],
            'custom' => [
                'unique,App\Models\AuthRuleT,name'
            ]
        ],
        'show' => [
            'rules' => [
                'id' => 'bail|min:1',
            ],
            'custom' => 'exists,App\Models\AuthRuleT,id'
        ],
        'update' => [
            'rules' => [
                'id' => 'bail|min:1',
                'title' => 'required|max:20',
                'name' => 'bail|required|max:20',
                'method' => 'required|in:GET,POST,PUT,PATCH,DELETE',
                'group' => 'required',
                'module' => 'required',
            ],
            'custom' => [
                'exists,App\Models\AuthRuleT,id',
                'unique,App\Models\AuthRuleT,name,id'
            ]
        ],
        'destroy' => [
            'rules' => [
                'id' => 'bail|min:1',
            ],
            'custom' => [
                'exists,App\Models\AuthRuleT,id',
            ]
        ]
    ];


    public function __construct(Request $request)
    {
        $this->model = new AuthRuleT();
        parent::__construct($request);
    }

    /**
     * @title 登录
     * @description 登录授权，返回jwt凭据
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function login()
    {
        if (!$token = auth('api')->attempt([
            'username' => $this->params['username'],
            'password' => $this->params['password'],
        ])) {
            return $this->error(401, '登录失败，用户名或密码错误');
        }

        return $this->success([
            'access_token' => $token,
            'token_type' => 'bearer',
            'expires_in' => auth('api')->factory()->getTTL() * 60
        ]);
    }

    /**
     * @title 注销登录
     * @description 注销登录，全局退出并通知其他系统退出
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function logout()
    {
        auth('api')->logout();
        return $this->success();
    }

    /**
     * @title 刷新token
     * @description 刷新token，如果开启黑名单，以前的token便会失效
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function refresh()
    {
        try {
            $token = auth('api')->refresh();
            return $this->success([
                'access_token' => $token,
                'token_type' => 'bearer',
                'expires_in' => auth('api')->factory()->getTTL() * 60
            ]);
        } catch (\Exception $e){
            return $this->error(403, '令牌已过期');
        }
    }

    /**
     * @title 修改密码
     * @description 本人或管理员修改密码
     * @param $id
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/2/2
     */
    public function modifyPassword($id){
        $user = auth('api')->user();
        if($user['id'] != $id && $user['id'] != 1){
            return $this->error(403, '权限不足');
        }
        $employee = EmployeeT::find($id);
        if(!password_verify($this->params['oldPassword'], $employee['password'])){
            return $this->error(403, '原密码错误');
        };
        $employee->password = password_hash($this->params['newPassword'], PASSWORD_DEFAULT);
        if($employee->save()){
            return $this->success('','密码修改成功');
        } else {
            return $this->error(500, '配置信息保存失败');
        }
    }

    /**
     * @title 重置密码
     * @description 管理员重置密码
     * @param $id
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/2/2
     */
    public function resetPassword($id)
    {
        if(auth('api')->user()['id'] != 1){
            return $this->error(403, '权限不足');
        }
        EmployeeT::where('id',$id)->update(['password' => password_hash('123456', PASSWORD_DEFAULT)]);
        auth('api')->tokenById('id');
        return $this->success('','密码重置成功');
    }

    /**
     * @title 用户授权
     * @description 单用户授权
     * @param $id
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/2/2
     */
    public function EmployeeAuth($id)
    {
        $user = EmployeeT::find($id);
        $authList = $user->getAuthList();
        $rules = array_diff($this->params['rules'], array_intersect($this->params['rules'], $authList));
        $user->rules = implode(',', $rules);
        if($user->save()){
            return $this->success('','权限添加成功，用户需重新登录获取权限');
        } else {
            return $this->error(500, '配置信息保存失败');
        }
    }

    /**
     * @title 用户组授权
     * @description 用户组授权
     * @param $id
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/2/3
     */
    public function EmployeeGroupAuth($id)
    {
        $group = EmployeeGroupT::find($id);
        $rules = array_diff($this->params['rules'], array_intersect($this->params['rules'], explode(',',$group->rules)));
        $group->rules = implode(',', $rules);
        if($group->save()){
            return $this->success('','权限添加成功，用户需重新登录获取权限');
        } else {
            return $this->error(500, '配置信息保存失败');
        }
    }

    /**
     * @title 节点列表
     * @description 权限节点列表
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function index()
    {
        $query = AuthRuleT::query();
        if(isset($this->params['name']) && $this->params['name'] != ''){
            $query->where('name', $this->params['name']);
        }
        if(isset($this->params['title']) && $this->params['title'] != ''){
            $query->where('title', 'like', '%'. $this->params['title'] .'%');
        }

        if(isset($this->params['status']) && $this->params['status'] >= 0){
            $query->where('status', $this->params['status']);
        } else {
            $query->where('status', 1);
        }

        $data = $query->paginate();

        return $this->success(new AuthRuleCollection($data));
    }

    /**
     * @title 节点新增
     * @description 手动创建节点
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function store()
    {
        $rule = new AuthRuleT();
        $rule->title = $this->params['title'];
        $rule->name = $this->params['name'];
        $rule->method = $this->params['method'] ?? '';
        $rule->desc = $this->params['desc'] ?? '';
        $rule->module = $this->params['module'];
        $rule->group = $this->params['group'];
        $rule->condition = $this->params['condition'] ?? '';
        $rule->status = $this->params['status'] ?? 1;
        if($rule->save()){
            return $this->success(new AuthRule($rule));
        } else {
            return $this->error(500, '配置信息保存失败');
        }
    }

    /**
     * @title 节点详情
     * @description 节点详情
     * @param $id
     * @return mixed
     * @author zcstatham
     * @time 2021/1/28
     */
    public function show($id)
    {
        $rule = AuthRuleT::find($id);
        return $this->success(new AuthRule($rule));
    }

    /**
     * @title 节点更新
     * @description 节点更新
     * @param $id
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function update($id)
    {
        $rule = AuthRuleT::find($id);
        $rule->title = $this->params['title'];
        $rule->name = $this->params['name'];
        $rule->method = $this->params['method'] ?? $rule->method;
        $rule->desc = $this->params['desc'] ?? $rule->desc;
        $rule->module = $this->params['module'];
        $rule->group = $this->params['group'];
        $rule->condition = $this->params['condition'] ?? $rule->condition;
        $rule->status = $this->params['status'] ?? $rule->status;
        if($rule->save()){
            return $this->success(new AuthRule($rule));
        } else {
            return $this->error(500, '配置信息保存失败');
        }
    }

    /**
     * @title 节点扫描
     * @description 扫描控制器目录，更新或创建权限节点
     * @return \Illuminate\Http\JsonResponse
     * @throws \ReflectionException
     * @author zcstatham
     * @time 2021/1/28
     */
    public function scanNode(){
        $path = app_path('Http/Controllers');
        $dirs  = scandir($path);
        $list = [];
        foreach ($dirs as $dir) {
            if ($dir != '.' && $dir != '..' && is_dir($path . DIRECTORY_SEPARATOR . $dir)) {
                $classes = MyLib::scanFile($path . DIRECTORY_SEPARATOR . $dir);
                foreach ($classes as $class) {
                    if($class == 'BaseController'){
                        continue;
                    }
                    $classname = "App\\Http\\Controllers\\" . $dir . "\\" . $class;
                    if (class_exists($classname)) {
                        $reflection = new \ReflectionClass($classname);
                        $group_doc = MyLib::Parser($reflection->getDocComment());
                        $methods = $reflection->getMethods(\ReflectionMethod::IS_FINAL | \ReflectionMethod::IS_PUBLIC);
                        $group_doc['name'] = $class;
                        foreach ($methods as $key => $method) {
                            if (!in_array($method->name, ['__construct'])) {
                                $title_doc = MyLib::Parser($method->getDocComment());
                                $title_doc['param'] = $title_doc['param'] ?? [];
                                unset($title_doc['param']['Request']);
                                if (isset($title_doc['title']) && $title_doc['title']) {
                                    $route = app('router')->getRoutes()->getByAction($classname .'@'. $method->name);
                                    $list[] = array(
                                        'title' => trim($title_doc['title']),
                                        'name' => $route->uri(),
                                        'desc' => trim($title_doc['description']),
                                        'group' => trim($group_doc['title']),
                                        'method' => $route->methods()[0],
                                        'module' => $dir,
                                    );
                                }
                            }
                        }
                    }
                }
            }
        }

        if(AuthRuleT::upsert($list, ['name', 'module'], ['title', 'desc', 'group'])){
            return $this->success();
        } else {
            return $this->error(500,'权限节点更新失败');
        }
    }

    /**
     * @title 节点删除
     * @description 软删除
     * @param $id
     * @return \Illuminate\Http\JsonResponse
     * @author zcstatham
     * @time 2021/1/28
     */
    public function destroy($id)
    {
        $rule = AuthRuleT::find($id);
        $rule->status = 0;
        if($rule->save()){
            return $this->success();
        } else {
            return $this->error(500, '配置信息保存失败');
        }
    }
}