radar and radar details

lib/pages/home/radar/radar_details/radar_details.dart

@@ -1,76 +1,71 @@
+import 'package:didvan/models/requests/radar.dart';
+import 'package:didvan/pages/home/radar/radar_details/radar_details_state.dart';
 import 'package:didvan/widgets/didvan/page_view.dart';
-import 'package:didvan/widgets/didvan/text.dart';
 import 'package:didvan/widgets/floating_navigation_bar.dart';
-import 'package:didvan/widgets/skeletun_image.dart';
+import 'package:didvan/widgets/state_handlers/state_handler.dart';
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 
-class RadarDetails extends StatelessWidget {
+class RadarDetails extends StatefulWidget {
-  const RadarDetails({Key? key}) : super(key: key);
+  final Map<String, dynamic> pageData;
+  const RadarDetails({Key? key, required this.pageData}) : super(key: key);
+
+  @override
+  State<RadarDetails> createState() => _RadarDetailsState();
+}
+
+class _RadarDetailsState extends State<RadarDetails> {
+  final ScrollController _scrollController = ScrollController();
+
+  @override
+  void initState() {
+    final state = context.read<RadarDetailsState>();
+    state.args = widget.pageData['args'] ?? const RadarRequestArgs(page: 0);
+    Future.delayed(Duration.zero, () {
+      state.getRadarDetails(widget.pageData['id']);
+    });
+    super.initState();
+  }
 
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      body: Stack(
+      body: Consumer<RadarDetailsState>(
+        builder: (context, state, child) => StateHandler<RadarDetailsState>(
+          onRetry: () => state.getRadarDetails(state.currentRadar.id),
+          state: state,
+          builder: (context, state) => Stack(
             children: [
+              if (state.radars.isNotEmpty)
                 DidvanPageView(
-            pages: [
+                  isRadar: true,
-              Column(
+                  initialIndex: state.initialIndex,
-                crossAxisAlignment: CrossAxisAlignment.start,
+                  onPageChanged: _onPageChanged,
-                children: [
+                  scrollController: _scrollController,
-                  const SkeletonImage(
+                  items: state.radars,
-                    imageUrl: 'https://wallpapercave.com/wp/wp9373116.jpg',
-                    width: double.infinity,
-                    height: 200,
                 ),
-                  const SizedBox(height: 20),
+              if (state.radars.isNotEmpty)
-                  for (var i = 0; i < 10; i++)
+                Positioned(
-                    Padding(
-                      padding: const EdgeInsets.symmetric(horizontal: 16),
-                      child: Builder(
-                        builder: (context) {
-                          switch (i) {
-                            case 0:
-                              return Column(
-                                crossAxisAlignment: CrossAxisAlignment.start,
-                                children: [
-                                  DidvanText(
-                                    'تحلیل شکاف فناوری صنعت فولاد ایران',
-                                    style:
-                                        Theme.of(context).textTheme.bodyText1,
-                                  ),
-                                  const SizedBox(height: 8),
-                                  const DidvanText(
-                                    'پایگاه خبری معدن نیوز - 2 ساعت پیش',
-                                  ),
-                                  const SizedBox(height: 8),
-                                ],
-                              );
-                            default:
-                              return const Padding(
-                                padding: EdgeInsets.only(bottom: 8),
-                                child: DidvanText(
-                                  'این سایت امروز (شنبه) تیم منتخب قاره آسیا در سال ۲۰۲۱ میلادی را معرفی کرد که از ایران، سردار آزمون و محمد حسین کنعانی‌زادگان در ترکیب اصلی و مهدی طارمی و سیدمجید حسینی در جمع بازیکنان ذخیره دیده می‌شوند.',
-                                ),
-                              );
-                          }
-                        },
-                      ),
-                    ),
-                  const SizedBox(height: 20),
-                ],
-              ),
-            ],
-          ),
-          const Positioned(
                   bottom: 0,
                   left: 0,
                   right: 0,
                   child: FloatingNavigationBar(
-              isRadar: true,
+                    radar: state.currentRadar,
+                    scrollController: _scrollController,
                   ),
                 ),
             ],
           ),
+        ),
+      ),
+    );
+  }
+
+  void _onPageChanged(int index) {
+    final state = context.read<RadarDetailsState>();
+    state.getRadarDetails(
+      state.radars[index]!.id,
+      isForward: state.currentIndex < index,
     );
   }
 }

lib/pages/home/radar/radar_details/radar_details_state.dart

@@ -1,3 +1,81 @@
-import 'package:didvan/providers/core_provider.dart';
+import 'dart:math';
 
-class RadarDetailsState extends CoreProvier {}
+import 'package:didvan/models/enums.dart';
+import 'package:didvan/models/radar_details_data.dart';
+import 'package:didvan/models/requests/radar.dart';
+import 'package:didvan/providers/core_provider.dart';
+import 'package:didvan/services/network/request.dart';
+import 'package:didvan/services/network/request_helper.dart';
+
+class RadarDetailsState extends CoreProvier {
+  final List<RadarDetailsData?> radars = [];
+  late final int initialIndex;
+  late final RadarRequestArgs args;
+
+  int _currentIndex = 0;
+  int get currentIndex => _currentIndex;
+
+  RadarDetailsData get currentRadar => radars[_currentIndex]!;
+
+  Future<void> getRadarDetails(int id, {bool? isForward}) async {
+    if (isForward == null) {
+      appState = AppState.busy;
+    }
+    final service = RequestService(RequestHelper.radarDetails(id, args));
+    await service.httpGet();
+    if (service.isSuccess) {
+      final result = service.result;
+      RadarDetailsData? prevRadar;
+      final radar = RadarDetailsData.fromJson(result['radar']);
+      if (args.page == 0) {
+        radars.add(radar);
+        initialIndex = 0;
+        appState = AppState.idle;
+        return;
+      }
+
+      if (result['prevRadar'].isNotEmpty) {
+        prevRadar = RadarDetailsData.fromJson(result['prevRadar']);
+      }
+
+      RadarDetailsData? nextRadar;
+      if (result['nextRadar'].isNotEmpty) {
+        nextRadar = RadarDetailsData.fromJson(result['nextRadar']);
+      }
+      if (isForward == null) {
+        radars.addAll(List.generate(max(radar.order - 2, 0), (index) => null));
+        if (prevRadar != null) {
+          radars.add(prevRadar);
+        }
+        radars.add(radar);
+        if (nextRadar != null) {
+          radars.add(nextRadar);
+        }
+        _currentIndex = initialIndex = radar.order - 1;
+      } else if (isForward) {
+        if (!exists(nextRadar) && nextRadar != null) {
+          radars.add(nextRadar);
+        }
+        _currentIndex++;
+      } else if (!isForward) {
+        if (!exists(prevRadar) && prevRadar != null) {
+          radars[_currentIndex - 2] = prevRadar;
+        }
+        _currentIndex--;
+      }
+      appState = AppState.idle;
+      return;
+    }
+    if (isForward == null) {
+      appState = AppState.failed;
+    }
+  }
+
+  bool exists(RadarDetailsData? radar) =>
+      radars.any((r) => radar != null && r != null && r.id == radar.id);
+
+  void onCommentAdded(int id) {
+    radars.firstWhere((radar) => radar!.id == id)!.comments++;
+    notifyListeners();
+  }
+}

lib/pages/home/radar/radar_state.dart

@@ -78,7 +78,7 @@ class RadarState extends CoreProvier {
     appState = AppState.failed;
   }
 
-  Future<void> markRadar(int id) async {
+  Future<void> mark(int id) async {
     radars.firstWhere((element) => element.id == id).marked = true;
     notifyListeners();
     _markQueue.add(MapEntry(id, true));
@@ -94,7 +94,7 @@ class RadarState extends CoreProvier {
     });
   }
 
-  Future<void> unMarkRadar(int id) async {
+  Future<void> unMark(int id) async {
     radars.firstWhere((element) => element.id == id).marked = false;
     notifyListeners();
     _markQueue.add(MapEntry(id, false));
@@ -110,6 +110,11 @@ class RadarState extends CoreProvier {
     });
   }
 
+  void onCommentAdded(int id) {
+    radars.firstWhere((radar) => radar.id == id).comments++;
+    notifyListeners();
+  }
+
   void init() {
     resetFilters(true);
     Future.delayed(Duration.zero, () {

lib/pages/home/radar/widgets/radar_item.dart

@@ -1,8 +1,10 @@
 import 'package:didvan/config/theme_data.dart';
 import 'package:didvan/constants/app_icons.dart';
 import 'package:didvan/models/radar_overview.dart';
+import 'package:didvan/models/requests/radar.dart';
 import 'package:didvan/pages/home/radar/radar_state.dart';
 import 'package:didvan/routes/routes.dart';
+import 'package:didvan/utils/date_time.dart';
 import 'package:didvan/widgets/bookmark_button.dart';
 import 'package:didvan/widgets/didvan/card.dart';
 import 'package:didvan/widgets/didvan/divider.dart';
@@ -10,7 +12,6 @@ import 'package:didvan/widgets/didvan/icon_button.dart';
 import 'package:didvan/widgets/didvan/text.dart';
 import 'package:didvan/widgets/skeleton_image.dart';
 import 'package:flutter/material.dart';
-import 'package:persian_number_utility/persian_number_utility.dart';
 import 'package:provider/provider.dart';
 
 class RadarItem extends StatelessWidget {
@@ -26,6 +27,13 @@ class RadarItem extends StatelessWidget {
         arguments: {
           'state': state,
           'id': radar.id,
+          'args': RadarRequestArgs(
+            page: state.page,
+            categories: state.selectedCats.map((e) => e.id).toList(),
+            endDate: state.endDate,
+            search: state.search,
+            startDate: state.startDate,
+          )
         },
       ),
       child: Column(
@@ -75,7 +83,7 @@ class RadarItem extends StatelessWidget {
               ),
               const Spacer(),
               DidvanText(
-                '${DateTime.parse(radar.createdAt).toPersianDateStr()} | خواندن ${radar.timeToRead} دقیقه',
+                '${DateTimeUtils.momentGenerator(radar.createdAt)} | خواندن ${radar.timeToRead} دقیقه',
                 style: Theme.of(context).textTheme.overline,
                 color: Theme.of(context).colorScheme.caption,
               ),
@@ -91,8 +99,8 @@ class RadarItem extends StatelessWidget {
             children: [
               BookmarkButton(
                 value: radar.marked,
-                onMark: () => state.markRadar(radar.id),
+                onMark: () => state.mark(radar.id),
-                onUnmark: () => state.unMarkRadar(radar.id),
+                onUnmark: () => state.unMark(radar.id),
               ),
               const Spacer(),
               if (radar.comments != 0) DidvanText(radar.comments.toString()),
@@ -106,6 +114,7 @@ class RadarItem extends StatelessWidget {
                     'isRadar': true,
                     'title': radar.title,
                     'id': radar.id,
+                    'onCommentAdded': () => state.onCommentAdded(radar.id)
                   },
                 ),
               ),