<?php

namespace App\Http\Controllers\API;

use App\Http\Controllers\Controller;
use App\Http\Requests\API\Task\BatchCreateItemRules;
use App\Http\Requests\API\Task\BatchCreateRequest;
use App\Http\Requests\API\Task\CreateOrUpdateRequest;
use App\Http\Resources\API\TaskDetailResource;
use App\Http\Resources\API\TaskResource;
use App\Models\CustomField;
use App\Models\NamingRule;
use App\Models\Project;
use App\Models\Task;
use App\Repositories\CustomFieldRepository;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Validator;

class TaskController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(Request $request)
    {
        $tasks = Task::query()
            ->where("parent_id", 0)
            ->with(['children', 'assignTo', 'createdBy'])
            ->filter($request->all())->paginate();

        return TaskResource::collection($tasks);
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(CreateOrUpdateRequest $request, CustomFieldRepository $customFieldRepo)
    {
        $formData = [
            ...$request->all(),
            'company_id' => Auth::user()->company_id,
            'created_by' => Auth::id(),
            'whitelist' => $request->whitelist ? sprintf(",%s", implode(',', $request->whitelist)) : null,
        ];

        if ($request->has("naming_rule_id") && $request->get("naming_rule_id") > 0) {
            $keys = $customFieldRepo->keysByGroup($request->get("naming_rule_id"));
            $formData['naming_rules'] = $request->only($keys);
        }

        Task::create($formData);

        return $this->created();
    }

    /**
     * Display the specified resource.
     */
    public function show(string $id)
    {
        $task = Task::query()->findOrFail($id);

        return new TaskDetailResource($task);
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(CreateOrUpdateRequest $request, string $id, CustomFieldRepository $customFieldRepo)
    {
        $task = Task::query()->findOrFail($id);

        $formData = [...$request->all(),
            'whitelist' => $request->whitelist ? sprintf(",%s", implode(',', $request->whitelist)) : null,
        ];

        if ($request->has("naming_rule_id") && $request->get("naming_rule_id") > 0) {
            $keys = $customFieldRepo->keysByGroup($request->get("naming_rule_id"));
            $formData['naming_rules'] = $request->only($keys);
        }

        $task->fill($formData);
        $task->save();

        return $this->noContent();
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id)
    {
        $task = Task::query()->findOrFail($id);

        $task->delete();

        return $this->noContent();
    }

    public function batchStore(BatchCreateRequest $request, CustomFieldRepository $customFieldRepo)
    {
        $project = Project::query()->find($request->project_id);

        $parsedItems = [];
        $previousItem = [];
        foreach ($request->items as $index => $item) {
            if ($index == 0) {
                $newItem = $item;
            } else {
                $newItem = [];
                foreach ($item as $k => $v) {
                    $newItem[$k] = $v == "ditto" ? data_get($previousItem, $k) : $v;
                }
            }

            $previousItem = $newItem;
            $parsedItems[] = $newItem;
        }

        $itemRules = new BatchCreateItemRules();
        foreach ($parsedItems as $index => $item) {
            $rules = $itemRules->rules($item);

            try {
                $validator = Validator::make($item, $rules);
                if ($validator->fails()) {
                    return $this->badRequest(sprintf("line: %d, %s", $index + 1, $validator->errors()->first()));
                }
            } catch (\Exception $e) {
                return $this->badRequest(sprintf("line: %d, %s", $index + 1, $e->getMessage()));
            }
        }

        foreach ($parsedItems as $item) {
            $namingRuleId = data_get($item, "naming_rule_id", 0);
            if ($namingRuleId > 0) {
                $keys = $customFieldRepo->keysByGroup($namingRuleId);
                $item['naming_rules'] = collect($item)->only($keys)->toArray();
            }

            Task::query()->create([
                ...$item,
                'project_id' => $project->id,
                'parent_id' => 0,
                'company_id' => Auth::user()->company_id,
                'created_by' => Auth::id(),
            ]);
        }

        return $this->noContent();
    }
}