<?php

namespace App\Http\Controllers;

use App\Models\Attachment;
use App\Models\MasterTask;
use App\Models\Team;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Validator;

class MasterTaskController extends Controller
{
    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'data.name' => 'required',
            'data.description' => 'required',
            'data.duration' => 'required',
            'data.deadline' => 'required',
            'data.project_id' => 'required',
            'data.employees' => 'required',
        ]);

        if($validator->fails()){
            return response()->json($validator->errors(), 400);
        }

        // upratanie requestu, pretoze frontend pouziva inu nomenklaturu fieldov ako appka
        $data['data'] = $request->all()['data'];
        $data['data']['title'] = $request->all()['data']['name'];
        $data['data']['estimated_time'] = $request->all()['data']['duration'];

        foreach ( $data['data']['employees'] as $key => $employee ) {
            $data['data']['employees'][$key]['user_id'] = $employee['id'];
            $data['data']['employees'][$key]['estimated_time'] = $employee['duration'];
            $data['data']['employees'][$key]['created_by'] = $request->all()['data']['created_by'];
        }

        $request->merge($data);

        $mastertask = MasterTask::create($request->all()['data']);
        $mastertask->subtasks()->createMany($request->all()['data']['employees']);

        // upload attachmentu
        if ($request->file('data')) {
            $attachments = Attachment::uploadAttachmentsToS3($request->file('data')['files'], $mastertask);
            $mastertask->attachments()->createMany($attachments);
        }

        return response()->json([
            'message' => 'Master Task created successfully',
            'mastertask' => $mastertask
        ], 201);
    }

    public function update($id, Request $request)
    {
        $validator = Validator::make($request->all(), [
            'data.name' => 'required',
            'data.description' => 'required',
            'data.duration' => 'required',
            'data.deadline' => 'required',
            'data.project_id' => 'required',
        ]);

        if ($validator->fails()){
            return response()->json($validator->errors(), 400);
        }

        // upratanie requestu, pretoze frontend pouziva inu nomenklaturu fieldov ako appka
        $data['data'] = $request->all()['data'];
        $data['data']['title'] = $request->all()['data']['name'];
        $data['data']['estimated_time'] = $request->all()['data']['duration'];

        $request->merge($data);

        $mastertask = MasterTask::find($id);

        // ak je Master task v stave ukončený, nedovolime update
        if ($mastertask->is_finished == 1) {
            return response()->json([
                'message' => 'Cannot update mastertask with is_finished 1.',
            ], 400);
        }
        $mastertask->update($request->all()['data']);

        // upload attachmentu

        // TODO prerobit na upsert
        if ($request->file('data')) {
            $attachments = Attachment::uploadAttachmentsToS3($request->file('data')['files'], $mastertask);
            $mastertask->attachments()->createMany($attachments);
        }

        return response()->json([
            'message' => 'Master Task updated successfully',
            'mastertask' => $mastertask
        ]);


        // TODO V prípade, že sa menil zodpovedný team - Pre prebiehajúce sub tasky  - Ukončia sa sub tasky pôvodného teamu a tie sa následne zarátajú do ERP Karat

        // TODO V prípade, že sa menil zodpovedný team - Pre nové sub tasky (s nenatrackovaným časom) budú tieto tasky zmazané

    }

    public function delete($id)
    {
        $mastertask = MasterTask::find($id);

        // nedovolit zmazanie mastertasku, ak existuje aspon jeden subtask s timesheetom
        foreach ($mastertask->subtasks as $subtask) {
            if ($subtask->timesheets()->exists()) {
                return response()->json([
                    'message' => 'Cannot delete mastertask containing subtasks submitted timesheets.',
                ], 400);
            }
        }

        $mastertask->deleteAttachments();

        foreach ( $mastertask->subtasks as $subtask ) {
            $subtask->timeblocks()->delete();
        }

        $mastertask->subtasks()->delete();

        $mastertask->delete();

        return response()->json([
            'message' => 'Master Task deleted successfully.',
            'mastertask' => $mastertask
        ]);
    }

}