d287d175b5
- Change uploadCarImage to throw explicit errors instead of returning null - Handle upload exceptions in garage detail flow with clearer user feedback - Guide users to retry with a smaller/clearer image when upload constraints fail
104 lines
3.1 KiB
Dart
104 lines
3.1 KiB
Dart
import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:image/image.dart' as img;
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import 'package:supabase_flutter/supabase_flutter.dart';
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import '../main.dart';
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/// Handles uploading / deleting car images in Supabase Storage.
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///
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/// Bucket: `car-images` (private)
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/// Path: `{auth.uid()}/{hotwheels.id}.jpg`
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class StorageService {
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StorageService._();
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static const _bucket = 'car-images';
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static const int _maxImageBytes = 500 * 1024;
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static const int _maxWidth = 1080;
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static const int _signedUrlExpirySeconds = 3600;
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/// Upload a car image for a specific hotwheels entry.
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/// Returns the storage path on success (e.g. `uid/123.jpg`).
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static Future<String> uploadCarImage({
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required File file,
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required int entryId,
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String? oldPath,
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}) async {
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if (oldPath != null && oldPath.isNotEmpty) {
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await deleteCarImage(oldPath);
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}
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final userId = supabase.auth.currentUser!.id;
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final path = '$userId/$entryId.jpg';
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final compressed = await _compressImage(file);
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await supabase.storage.from(_bucket).uploadBinary(
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path,
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compressed,
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fileOptions: const FileOptions(
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upsert: true,
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contentType: 'image/jpeg',
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),
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);
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return path;
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}
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/// Generates a temporary signed URL for a private image path.
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static Future<String?> createSignedUrl(String? path) async {
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if (path == null || path.isEmpty) return null;
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try {
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return await supabase.storage
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.from(_bucket)
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.createSignedUrl(path, _signedUrlExpirySeconds);
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} catch (e) {
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debugPrint('StorageService.createSignedUrl error: $e');
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return null;
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}
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}
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/// Deletes an image using its storage path.
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static Future<void> deleteCarImage(String? path) async {
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if (path == null || path.isEmpty) return;
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try {
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await supabase.storage.from(_bucket).remove([path]);
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} catch (e) {
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debugPrint('StorageService.deleteCarImage error: $e');
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}
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}
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static Future<Uint8List> _compressImage(File source) async {
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final bytes = await source.readAsBytes();
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final decoded = img.decodeImage(bytes);
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if (decoded == null) {
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throw Exception('Invalid image file.');
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}
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img.Image working = decoded.width > _maxWidth
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? img.copyResize(decoded, width: _maxWidth)
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: decoded;
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var quality = 85;
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Uint8List out = Uint8List.fromList(img.encodeJpg(working, quality: quality));
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// First pass: reduce JPEG quality.
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while (out.lengthInBytes > _maxImageBytes && quality > 35) {
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quality -= 5;
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out = Uint8List.fromList(img.encodeJpg(working, quality: quality));
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}
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// Second pass: reduce dimensions progressively if still above the limit.
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while (out.lengthInBytes > _maxImageBytes && working.width > 320) {
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final nextWidth = (working.width * 0.85).round();
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working = img.copyResize(working, width: nextWidth);
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out = Uint8List.fromList(img.encodeJpg(working, quality: quality));
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}
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if (out.lengthInBytes > _maxImageBytes) {
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throw Exception(
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'Image is too large after compression (${out.lengthInBytes} bytes).',
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);
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}
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return out;
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}
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}
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