<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Log;

use App\Models\Task;
use App\Models\TaskAssignee;
use App\Models\Project;
use App\Http\Resources\TaskResource;

use App\Http\Api\AuthApi;
use App\Http\Api\StudioApi;


class TaskController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request)
    {
        //
        $user = AuthApi::current($request);
        if(!$user){
            Log::error('notification auth failed {request}',['request'=>$request]);
            return $this->error(__('auth.failed'),401,401);
        }

        switch ($request->get('view')) {
            case 'all':
                $table = Task::whereNotNull('owner_id');
                break;
            case 'studio':
                $table = Task::where('owner_id',$user['user_uid']);
                break;
            case 'project':
                $projects = Project::where('id',$request->get('project_id'))
                                ->orWhereJsonContains('path',$request->get('project_id'))
                                ->select('id')->get();
                $table = Task::whereIn('project_id',$projects);
                break;
            default:
                # code...
                break;
        }
        if($request->has('executor_id_includes')){
            $table = $table->whereIn('executor_id',
                        explode(',',$request->get('executor_id_includes')));
        }
        if($request->has('executor_id_not-includes')){
            $table = $table->whereNotIn('executor_id',
                        explode(',',$request->get('executor_id_not-includes')));
        }
        if($request->has('assignees_id_includes')){
            $table = $table->whereJsonContains('assignees_id',
                        explode(',',$request->get('assignees_id_includes')));
        }
        if($request->has('assignees_id_not-includes')){
            $table = $table->whereJsonDoesntContain('assignees_id',
                        explode(',',$request->get('assignees_id_not-includes')));
        }
        if($request->get('sign_up_equals')==='true'){
            $table = $table->whereNull('assignees_id')
                        ->whereNull('executor_id');
        }

        if($request->has('participants_id_includes')){
            $id = explode(',',$request->get('participants_id_includes'));
            $tasks_id = TaskAssignee::whereIn('assignee_id',$id)->select('task_id')->get();
            $table = $table->where(function ($query) use ($id,$tasks_id) {
                $query->whereIn('executor_id',$id)
                    ->orWhereIn('id',$tasks_id);
            });
        }

        if($request->has('participants_id_not-includes')){
            $id = explode(',',$request->get('participants_id_not-includes'));
            $table = $table->where(function ($query) use ($id) {
                $query->whereJsonDoesntContain('assignees_id',$id)
                    ->whereNotIn('executor_id',$id);
            });
        }

        if($request->has('keyword')){
            $table = $table->where('title','like','%'.$request->get('keyword').'%');
        }
        if($request->has('status') && $request->get('status') !== 'all'){
            $table = $table->whereIn('status',explode(',',$request->get('status')) );
        }
        $count = $table->count();

        $table = $table->orderBy($request->get('order','created_at'),
                                $request->get('dir','asc'));

        $table = $table->skip($request->get("offset",0))
                    ->take($request->get('limit',1000));

        Log::debug('sql',['sql'=>$table->toSql()]);

        $result = $table->get();

        return $this->ok(
            [
            "rows" => TaskResource::collection($result),
            "count" => $count,
            ]);
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
        $user = AuthApi::current($request);
        if(!$user){
            return $this->error(__('auth.failed'),401,401);
        }
        $studioId = StudioApi::getIdByName($request->get('studio_name'));

        if(!$this->canEdit($user['user_uid'],$studioId)){
            return $this->error(__('auth.failed'),403,403);
        }
        $new = Task::firstOrNew(
            [
                'id'=>$request->get('id')
            ],
            [
                'owner_id'=>$studioId,
                'project_id'=>$request->get('project_id'),
            ],
        );
        if(Str::isUuid($request->get('id'))){
            $new->id = $request->get('id');
        }else{
            $new->id =  Str::uuid();
        }
        $new->title = $request->get('title');
        $new->editor_id = $user['user_uid'];
        $new->parent_id = $request->get('parent_id');
        //处理任务顺序
        if($request->get('parent_id')){
            $maxOrder = Task::where('parent_id',$request->get('parent_id'))
                        ->max('order');
        }else{
            $maxOrder = Task::where('project_id',$request->get('project_id'))
                        ->max('order');
        }
        if($maxOrder === null){
            $new->order = 1;
        }else{
            $new->order = $maxOrder + 1;
        }
        $new->save();

        return $this->ok(new TaskResource($new));
    }

    /**
     * Display the specified resource.
     *
     * @param  Task  $task
     * @return \Illuminate\Http\Response
     */
    public function show(Task $task)
    {
        //
        return $this->ok(new TaskResource($task));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  Task $task
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, Task $task)
    {
        //
        $user = AuthApi::current($request);
        if(!$user){
            return $this->error(__('auth.failed'),401,401);
        }
        if(!$this->canEdit($user['user_uid'],$task->owner_id)){
            return $this->error(__('auth.failed'),403,403);
        }
        if($request->has('title')){
            $task->title = $request->get('title');
        }
        if($request->has('description')){
            $task->description = $request->get('description');
        }
        if($request->has('assignees_id')){
            $delete = TaskAssignee::where('task_id',$task->id)->delete();
            $assigneesData = [];
            foreach ($request->get('assignees_id') as $key => $id) {
                $assigneesData[] = [
                    'id' => Str::uuid(),
                    'task_id' => $task->id,
                    'assignee_id' => $id,
                    'editor_id' => $user['user_uid'],
                ];
            }
            TaskAssignee::insert($assigneesData);
            //$task->assignees_id = json_encode($request->get('assignees_id'),JSON_UNESCAPED_UNICODE);
        }
        if($request->has('roles')){
            $task->roles = json_encode($request->get('roles'),JSON_UNESCAPED_UNICODE);
        }
        if($request->has('executor_id')){
            $task->executor_id = $request->get('executor_id');
        }
        if($request->has('executor_relation_task_id')){
            $task->executor_relation_task_id = $request->get('executor_relation_task_id');
        }
        if($request->has('project_id')){
            $task->project_id = $request->get('project_id');
        }
        if($request->has('pre_task_id')){
            $task->pre_task_id = $request->get('pre_task_id');
        }
        if($request->has('next_task_id')){
            $task->next_task_id = $request->get('next_task_id');
        }
        if($request->has('is_milestone')){
            $task->is_milestone = $request->get('is_milestone');
        }
        if($request->has('order')){
            $task->order = $request->get('order');
        }
        $relatedId = [];
        if($request->has('status')){
            switch ($request->get('status')) {
                case 'publish':
                    # code...
                    break;
                case 'running':
                    $task->started_at = now();
                    $task->executor_id = $user['user_uid'];
                break;
                case 'done':
                    $task->finished_at = now();
                    //开启相关任务
                    $preTasks = Task::where('pre_task_id',$task->id)
                                    ->where('status','pending')->select('id')->get();
                    foreach ($preTasks as $key => $value) {
                        $relatedId[] = $value->id;
                    }
                    if($task->next_task_id && Str::isUuid($task->next_task_id)){
                        $nextTasks = Task::where('id',$task->next_task_id)
                            ->where('status','pending')
                            ->select('id')->get();
                        foreach ($nextTasks as $key => $value) {
                            $relatedId[] = $value->id;
                        }
                    }
                    Task::whereIn('id',$relatedId)
                            ->update(['status'=>'published']);
                    break;
                default:
                    # code...
                    break;
            }
            $task->status = $request->get('status');
        }
        $task->editor_id = $user['user_uid'];
        $task->save();

        return $this->ok(new TaskResource($task));
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  Task  $task
     * @return \Illuminate\Http\Response
     */
    public function destroy(Task  $task)
    {
        //
        $user = AuthApi::current($request);
        if(!$user){
            return $this->error(__('auth.failed'),401,401);
        }
        if(!$this->canEdit($user['user_uid'],$task->owner)){
            return $this->error(__('auth.failed'),403,403);
        }
        $task->delete();
        if($task->trashed()){
            return $this->ok('ok');
        }else{
            return $this->error('fail',500,500);
        }
    }

    private function canEdit($user_uid,$owner_uid){
        return $user_uid===$owner_uid;
    }
}