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feat(images): 課程圖片伺服器端壓縮——scaleDown 2048 + JPEG 85,上限放寬至 10MB
實作 openspec change course-image-compression(O3.1 體感優化):
- 新增 App\Traits\CompressesImages:與聊天圖片管線參數一致的共用壓縮邏輯
- CourseImageController 封面/相簿套用壓縮,上傳上限 2MB→10MB(容納手機原圖)
- 前端課程卡片與相簿縮圖加 loading=lazy(詳情頁首屏封面刻意不加)
- CourseImageTest +4 案例(10MB 邊界、轉存 .jpg、>2048 縮小、小圖不放大)
- course-image-upload 主規格同步(新增伺服器端壓縮 requirement)

容器內全套件 155 passed / 400 assertions。
聊天端改用 trait 留待後續(該處無測試覆蓋,不在本 change 重構)。

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 23:43:24 +08:00

104 lines
3.3 KiB
PHP

<?php
namespace App\Http\Controllers\API;
use App\Http\Controllers\Controller;
use App\Models\CourseImage;
use App\Models\DivingOffer;
use App\Traits\CompressesImages;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
class CourseImageController extends Controller
{
use CompressesImages;
private function validateImage(Request $request): void
{
$request->validate([
// 10MB:伺服器端會壓縮(compressToJpeg),放寬以容納手機原圖
'image' => 'required|image|mimes:jpg,jpeg,png,webp|max:10240',
]);
}
private function authorizeOffer(Request $request, DivingOffer $offer): void
{
if ($offer->provider_id !== $request->user()->id) {
abort(403, '無權操作此課程');
}
}
public function uploadCover(Request $request, int $offerId)
{
$offer = DivingOffer::findOrFail($offerId);
$this->authorizeOffer($request, $offer);
$this->validateImage($request);
if ($offer->cover_image) {
Storage::disk('public')->delete($offer->cover_image);
}
$path = $this->compressToJpeg($request->file('image'), "offers/{$offerId}/cover");
$offer->update(['cover_image' => $path]);
return response()->json([
'status' => true,
'message' => '封面已上傳',
'cover_image_url' => $offer->cover_image_url,
]);
}
public function deleteCover(Request $request, int $offerId)
{
$offer = DivingOffer::findOrFail($offerId);
$this->authorizeOffer($request, $offer);
if ($offer->cover_image) {
Storage::disk('public')->delete($offer->cover_image);
$offer->update(['cover_image' => null]);
}
return response()->json(['status' => true, 'message' => '封面已刪除']);
}
public function uploadImage(Request $request, int $offerId)
{
$offer = DivingOffer::findOrFail($offerId);
$this->authorizeOffer($request, $offer);
$this->validateImage($request);
if ($offer->courseImages()->count() >= 3) {
return response()->json(['status' => false, 'message' => '相簿最多 3 張圖片'], 422);
}
$path = $this->compressToJpeg($request->file('image'), "offers/{$offerId}/gallery");
$sortOrder = ($offer->courseImages()->max('sort_order') ?? 0) + 1;
$image = CourseImage::create([
'diving_offer_id' => $offerId,
'image_path' => $path,
'sort_order' => $sortOrder,
]);
return response()->json([
'status' => true,
'message' => '圖片已上傳',
'data' => ['id' => $image->id, 'url' => $image->url, 'sort_order' => $image->sort_order],
], 201);
}
public function deleteImage(Request $request, int $imageId)
{
$image = CourseImage::with('divingOffer')->findOrFail($imageId);
if ($image->divingOffer->provider_id !== $request->user()->id) {
return response()->json(['status' => false, 'message' => '無權刪除此圖片'], 403);
}
Storage::disk('public')->delete($image->image_path);
$image->delete();
return response()->json(['status' => true, 'message' => '圖片已刪除']);
}
}