402 lines
13 KiB
Dart
402 lines
13 KiB
Dart
import 'dart:io';
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import 'dart:ui';
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import 'package:flutter/material.dart';
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import 'package:plezy/widgets/app_icon.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import 'package:cached_network_image/cached_network_image.dart';
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import '../services/image_cache_service.dart';
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import '../../services/plex_client.dart';
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import '../utils/plex_image_helper.dart';
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import 'media_card.dart';
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/// Set to `true` to blur all artwork (for store screenshots).
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const kBlurArtwork = false;
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/// Wraps [child] with a blur filter when [kBlurArtwork] is `true`.
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/// Rotates vowels (a→e, e→i, i→o, o→u, u→a) when [kBlurArtwork] is `true`.
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String obfuscateText(String text) {
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if (!kBlurArtwork) return text;
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const from = 'aeiouAEIOU';
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const to = 'eiouaEIOUA';
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final buf = StringBuffer();
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for (var i = 0; i < text.length; i++) {
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final idx = from.indexOf(text[i]);
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buf.write(idx >= 0 ? to[idx] : text[i]);
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}
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return buf.toString();
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}
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Widget blurArtwork(Widget child, {double sigma = 30, bool clip = true}) {
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if (!kBlurArtwork) return child;
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final filtered = ImageFiltered(
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imageFilter: ImageFilter.blur(sigmaX: sigma, sigmaY: sigma),
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child: child,
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);
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return clip ? ClipRect(child: filtered) : filtered;
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}
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class PlexOptimizedImage extends StatelessWidget {
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final PlexClient? client;
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final String? imagePath;
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final double? width;
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final double? height;
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final BoxFit fit;
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final FilterQuality filterQuality;
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final Widget Function(BuildContext, String)? placeholder;
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final Widget Function(BuildContext, String, dynamic)? errorWidget;
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final Duration fadeInDuration;
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final bool enableTranscoding;
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final String? cacheKey;
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final Alignment alignment;
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final IconData? fallbackIcon;
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final ImageType imageType;
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final String? localFilePath;
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const PlexOptimizedImage._({
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super.key,
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this.client,
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required this.imagePath,
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this.width,
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this.height,
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this.fit = BoxFit.cover,
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this.filterQuality = FilterQuality.medium,
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this.placeholder,
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this.errorWidget,
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this.fadeInDuration = const Duration(milliseconds: 300),
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this.enableTranscoding = true,
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this.cacheKey,
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this.alignment = Alignment.center,
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this.fallbackIcon,
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this.imageType = ImageType.poster,
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this.localFilePath,
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});
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/// Generic constructor for optimized images.
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const factory PlexOptimizedImage({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit,
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FilterQuality filterQuality,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration,
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bool enableTranscoding,
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String? cacheKey,
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Alignment alignment,
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IconData? fallbackIcon,
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ImageType imageType,
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String? localFilePath,
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}) = PlexOptimizedImage._;
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/// Named constructor for poster images with default fallback icon.
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const factory PlexOptimizedImage.poster({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit,
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FilterQuality filterQuality,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration,
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bool enableTranscoding,
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String? cacheKey,
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Alignment alignment,
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String? localFilePath,
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}) = PlexOptimizedImage._poster;
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/// Named constructor for episode thumbnails.
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const factory PlexOptimizedImage.thumb({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit,
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FilterQuality filterQuality,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration,
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bool enableTranscoding,
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String? cacheKey,
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Alignment alignment,
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String? localFilePath,
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}) = PlexOptimizedImage._thumb;
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/// Named constructor for playlist images.
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const factory PlexOptimizedImage.playlist({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit,
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FilterQuality filterQuality,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration,
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bool enableTranscoding,
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String? cacheKey,
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Alignment alignment,
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String? localFilePath,
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}) = PlexOptimizedImage._playlist;
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const PlexOptimizedImage._poster({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit = BoxFit.cover,
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FilterQuality filterQuality = FilterQuality.medium,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration = const Duration(milliseconds: 300),
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bool enableTranscoding = true,
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String? cacheKey,
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Alignment alignment = Alignment.center,
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String? localFilePath,
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}) : this._(
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key: key,
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client: client,
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imagePath: imagePath,
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width: width,
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height: height,
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fit: fit,
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filterQuality: filterQuality,
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placeholder: placeholder,
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errorWidget: errorWidget,
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fadeInDuration: fadeInDuration,
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enableTranscoding: enableTranscoding,
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cacheKey: cacheKey,
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alignment: alignment,
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fallbackIcon: Symbols.movie_rounded,
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imageType: ImageType.poster,
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localFilePath: localFilePath,
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);
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const PlexOptimizedImage._thumb({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit = BoxFit.cover,
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FilterQuality filterQuality = FilterQuality.medium,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration = const Duration(milliseconds: 300),
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bool enableTranscoding = true,
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String? cacheKey,
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Alignment alignment = Alignment.center,
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String? localFilePath,
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}) : this._(
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key: key,
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client: client,
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imagePath: imagePath,
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width: width,
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height: height,
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fit: fit,
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filterQuality: filterQuality,
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placeholder: placeholder,
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errorWidget: errorWidget,
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fadeInDuration: fadeInDuration,
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enableTranscoding: enableTranscoding,
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cacheKey: cacheKey,
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alignment: alignment,
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fallbackIcon: Symbols.video_library_rounded,
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imageType: ImageType.thumb,
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localFilePath: localFilePath,
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);
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const PlexOptimizedImage._playlist({
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Key? key,
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PlexClient? client,
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required String? imagePath,
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double? width,
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double? height,
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BoxFit fit = BoxFit.cover,
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FilterQuality filterQuality = FilterQuality.medium,
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Widget Function(BuildContext, String)? placeholder,
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Widget Function(BuildContext, String, dynamic)? errorWidget,
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Duration fadeInDuration = const Duration(milliseconds: 300),
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bool enableTranscoding = true,
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String? cacheKey,
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Alignment alignment = Alignment.center,
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String? localFilePath,
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}) : this._(
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key: key,
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client: client,
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imagePath: imagePath,
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width: width,
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height: height,
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fit: fit,
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filterQuality: filterQuality,
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placeholder: placeholder,
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errorWidget: errorWidget,
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fadeInDuration: fadeInDuration,
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enableTranscoding: enableTranscoding,
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cacheKey: cacheKey,
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alignment: alignment,
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fallbackIcon: Symbols.playlist_play_rounded,
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imageType: ImageType.poster,
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localFilePath: localFilePath,
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);
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/// Whether both width and height are explicitly set to finite positive values,
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/// meaning we can skip the LayoutBuilder.
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bool get _hasKnownDimensions =>
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width != null && width!.isFinite && width! > 0 && height != null && height!.isFinite && height! > 0;
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@override
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Widget build(BuildContext context) {
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// Check for local file first
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if (localFilePath != null) {
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final file = File(localFilePath!);
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if (file.existsSync()) {
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return blurArtwork(
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Image.file(
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file,
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width: width,
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height: height,
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fit: fit,
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filterQuality: filterQuality,
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alignment: alignment,
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errorBuilder: (context, error, stackTrace) => _buildErrorWidget(context, error),
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),
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);
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}
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}
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// Return empty container if no image path
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if (imagePath == null || imagePath!.isEmpty) {
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return _buildFallback(context);
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}
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// Fast path: skip LayoutBuilder when both dimensions are explicitly known
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if (_hasKnownDimensions) {
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return blurArtwork(_buildCachedImage(context, width!, height!));
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}
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return blurArtwork(
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LayoutBuilder(
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builder: (context, constraints) {
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final effectiveWidth = _resolvedDimension(width, constraints.maxWidth, 300.0);
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final effectiveHeight = _resolvedDimension(height, constraints.maxHeight, 450.0);
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return _buildCachedImage(context, effectiveWidth, effectiveHeight);
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},
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),
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);
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}
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static double _resolvedDimension(double? explicit, double constraintMax, double fallback) {
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// Pick the explicit size when it's a finite positive number, otherwise
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// fall back to the constraint or a sensible default so we don't end up
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// with NaN/Infinity when rounding to ints for caching.
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if (explicit == null || explicit.isNaN || explicit.isInfinite || explicit <= 0) {
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if (constraintMax.isFinite && constraintMax > 0) {
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return constraintMax;
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}
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return fallback;
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}
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return explicit;
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}
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Widget _buildCachedImage(BuildContext context, double effectiveWidth, double effectiveHeight) {
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final devicePixelRatio = PlexImageHelper.effectiveDevicePixelRatio(context);
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// Get optimized image URL
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final imageUrl = PlexImageHelper.getOptimizedImageUrl(
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client: client,
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thumbPath: imagePath,
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maxWidth: effectiveWidth,
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maxHeight: effectiveHeight,
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devicePixelRatio: devicePixelRatio,
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enableTranscoding: enableTranscoding && PlexImageHelper.shouldTranscode(imagePath),
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imageType: imageType,
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);
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if (imageUrl.isEmpty) {
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return _buildFallback(context);
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}
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// Calculate memory cache dimensions
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final scaledWidth = effectiveWidth * devicePixelRatio;
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final scaledHeight = effectiveHeight * devicePixelRatio;
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final (memWidth, memHeight) = PlexImageHelper.getMemCacheDimensions(
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displayWidth: scaledWidth.isFinite && scaledWidth > 0 ? scaledWidth.round() : 0,
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displayHeight: scaledHeight.isFinite && scaledHeight > 0 ? scaledHeight.round() : 0,
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);
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// Generate cache key if not provided
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final effectiveCacheKey = cacheKey ?? _generateCacheKey(imageUrl, memWidth, memHeight);
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return Image(
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image: CachedNetworkImageProvider(
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imageUrl,
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cacheKey: effectiveCacheKey,
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cacheManager: PlexImageCacheManager.instance,
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headers: const {'User-Agent': 'Plezy'},
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maxHeight: memHeight,
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),
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width: width,
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height: height,
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fit: fit,
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filterQuality: filterQuality,
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alignment: alignment,
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errorBuilder: (context, error, stackTrace) => _buildErrorWidget(context, error),
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frameBuilder: (context, child, frame, wasSynchronouslyLoaded) {
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if (wasSynchronouslyLoaded || frame != null) return child;
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return _buildPlaceholder(context);
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},
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);
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}
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Widget _buildPlaceholder(BuildContext _) {
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return SkeletonLoader(
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child: fallbackIcon != null
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? Center(child: AppIcon(fallbackIcon!, fill: 1, size: 40, color: Colors.white54))
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: null,
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);
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}
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Widget _buildErrorWidget(BuildContext context, dynamic _) {
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return Container(
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color: Theme.of(context).colorScheme.surfaceContainerHighest,
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child: Center(
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child: AppIcon(
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fallbackIcon ?? Symbols.broken_image_rounded,
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fill: 1,
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size: 40,
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color: Theme.of(context).colorScheme.onSurfaceVariant,
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),
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),
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);
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}
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Widget _buildFallback(BuildContext context) {
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return Container(
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width: width,
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height: height,
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color: Theme.of(context).colorScheme.surfaceContainerHighest,
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child: Center(
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child: AppIcon(
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fallbackIcon ?? Symbols.image_not_supported_rounded,
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fill: 1,
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size: 40,
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color: Theme.of(context).colorScheme.onSurfaceVariant,
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),
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),
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);
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}
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String _generateCacheKey(String imageUrl, int memWidth, int memHeight) {
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final urlHash = imageUrl.hashCode;
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return 'plex_optimized_${memWidth}x${memHeight}_$urlHash';
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}
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}
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