first commit

laravel/app/Services/TaskService.php

@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services;
+
+use App\Contracts\QueryFilterPipelineInterface;
+use App\Contracts\RequestFilterInterface;
+use App\Contracts\TaskServiceInterface;
+use App\Models\Tag;
+use App\Models\Task;
+use Illuminate\Contracts\Pagination\LengthAwarePaginator;
+use Illuminate\Database\QueryException;
+use Illuminate\Support\Facades\DB;
+
+final readonly class TaskService implements TaskServiceInterface
+{
+    public function __construct(
+        private QueryFilterPipelineInterface $pipeline
+    ) {
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function list(RequestFilterInterface $filters): LengthAwarePaginator
+    {
+        $builder = Task::query()
+            ->with('tags');
+
+        return $this->pipeline->applyFilters($builder, $filters);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function create(array $data): Task
+    {
+        return DB::transaction(function () use ($data) {
+            $tags = $data['tags'] ?? [];
+            unset($data['tags']);
+
+            $task = Task::create($data);
+
+            if (!empty($tags)) {
+                $this->syncTags($task, $tags);
+            }
+
+            return $task->load('tags');
+        });
+    }
+
+    public function show(Task $task): Task
+    {
+        return $task->load('tags');
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function update(Task $task, array $data): Task
+    {
+        return DB::transaction(function () use ($task, $data) {
+            $tags = $data['tags'] ?? null;
+            unset($data['tags']);
+
+            $task->update($data);
+
+            if (is_array($tags)) {
+                $this->syncTags($task, $tags);
+            }
+
+            return $task->load('tags');
+        });
+    }
+
+    public function delete(Task $task): void
+    {
+        $task->delete();
+    }
+
+    private function syncTags(Task $task, array $tagNames): void
+    {
+        $tagIds = collect($tagNames)
+            ->filter()
+            ->unique()
+            ->map(function (string $name) {
+                try {
+                    return Tag::firstOrCreate([
+                        'name' => $name,
+                    ])->id;
+                } catch (QueryException) {
+                    return Tag::where('name', $name)->value('id');
+                }
+            })
+            ->all();
+
+        $task->tags()->sync($tagIds);
+    }
+}