⚡ Improve the speed of fetching attachments meta via batch api
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0ad4854443
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@ -4,6 +4,7 @@ import 'dart:typed_data';
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import 'package:get/get.dart';
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import 'package:path/path.dart';
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import 'package:solian/models/attachment.dart';
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import 'package:solian/models/pagination.dart';
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import 'package:solian/providers/auth.dart';
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import 'package:solian/services.dart';
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import 'package:dio/dio.dart' as dio;
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@ -21,6 +22,48 @@ class AttachmentProvider extends GetConnect {
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final Map<int, Attachment> _cachedResponses = {};
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Future<List<Attachment?>> listMetadata(
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List<int> id, {
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noCache = false,
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}) async {
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List<Attachment?> result = List.filled(id.length, null);
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List<int> pendingQuery = List.empty(growable: true);
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if (!noCache) {
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for (var idx = 0; idx < id.length; idx++) {
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if (_cachedResponses.containsKey(id[idx])) {
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result[idx] = _cachedResponses[id[idx]];
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} else {
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pendingQuery.add(id[idx]);
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}
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}
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}
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final resp = await get(
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'/attachments?take=${pendingQuery.length}&id=${pendingQuery.join(',')}',
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);
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if (resp.statusCode != 200) return result;
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final rawOut = PaginationResult.fromJson(resp.body);
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if (rawOut.data == null) return result;
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final List<Attachment> out =
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rawOut.data!.map((x) => Attachment.fromJson(x)).toList();
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for (final item in out) {
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if (item.destination != 0 && item.isAnalyzed) {
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_cachedResponses[item.id] = item;
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}
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}
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for (var i = 0; i < out.length; i++) {
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for (var j = 0; j < id.length; j++) {
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if (out[i].id == id[j]) {
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result[j] = out[i];
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}
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}
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}
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return result;
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}
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Future<Attachment?> getMetadata(int id, {noCache = false}) async {
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if (!noCache && _cachedResponses.containsKey(id)) {
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return _cachedResponses[id]!;
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@ -222,19 +222,13 @@ class _AttachmentEditorPopupState extends State<AttachmentEditorPopup> {
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setState(() => _isBusy = true);
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int progress = 0;
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for (var idx = 0; idx < widget.initialAttachments.length; idx++) {
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attach.getMetadata(widget.initialAttachments[idx]).then((resp) {
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progress++;
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_attachments[idx] = resp;
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if (progress == widget.initialAttachments.length) {
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setState(() {
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_isBusy = false;
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_isFirstTimeBusy = false;
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});
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}
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attach.listMetadata(widget.initialAttachments).then((result) {
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setState(() {
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_attachments = result;
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_isBusy = false;
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_isFirstTimeBusy = false;
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});
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}
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});
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}
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void _showAttachmentPreview(Attachment element) {
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@ -45,7 +45,7 @@ class _AttachmentListState extends State<AttachmentList> {
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List<Attachment?> _attachmentsMeta = List.empty();
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void _getMetadataList() {
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final AttachmentProvider provider = Get.find();
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final AttachmentProvider attach = Get.find();
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if (widget.attachmentsId.isEmpty) {
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return;
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@ -53,25 +53,15 @@ class _AttachmentListState extends State<AttachmentList> {
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_attachmentsMeta = List.filled(widget.attachmentsId.length, null);
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}
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int progress = 0;
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for (var idx = 0; idx < widget.attachmentsId.length; idx++) {
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provider.getMetadata(widget.attachmentsId[idx]).then((resp) {
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progress++;
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if (resp != null) {
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_attachmentsMeta[idx] = resp;
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}
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if (progress == widget.attachmentsId.length) {
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calculateAspectRatio();
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if (mounted) {
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setState(() => _isLoading = false);
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}
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}
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attach.listMetadata(widget.attachmentsId).then((result) {
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setState(() {
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_attachmentsMeta = result;
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_isLoading = false;
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});
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}
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});
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}
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void calculateAspectRatio() {
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void _calculateAspectRatio() {
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bool isConsistent = true;
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double? consistentValue;
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int portrait = 0, square = 0, landscape = 0;
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