ftc_patient_app/lib/view/screens/home/inbox_screen.dart

import 'package:flutter/material.dart';
import 'package:ftc_mobile_app/ftc_mobile_app.dart';
import 'package:ftc_mobile_app/models/chat/ChatModel.dart';
import 'package:ftc_mobile_app/view/screens/chat/arguments/chat_screen_args.dart';
import 'package:ftc_mobile_app/web_services/chat_services.dart';
import 'package:get/get.dart';
import 'package:pull_to_refresh_flutter3/pull_to_refresh_flutter3.dart';
import '../../custom_widgets/my_circle_image.dart';

class InboxScreen extends StatefulWidget {
  const InboxScreen({Key? key}) : super(key: key);

  @override
  State<InboxScreen> createState() => _InboxScreenState();
}

class _InboxScreenState extends State<InboxScreen> {
  final InboxScreenController controller = Get.put(InboxScreenController());

  @override
  Widget build(BuildContext context) {
    return CustomScaffold(
      backgroundColor: CustomAppColors.kPrimaryColor,
      screenKey: controller.screenKey,
      // onBackButton: controller.onBackButtonPressed,
      onScreenTap: controller.removeFocus,
      showAppBar: false,
      body: Obx(() {
        final list = controller.chatsAndGroups();
        list.sort((a, b) => b.date.compareTo(a.date));

        final canLoadMore = controller.canLoadMore.value;

        return SmartRefresher(
          key: const ValueKey("clients_list"),
          controller: controller.listRC,
          scrollController: controller.listSC,
          header: FrequentFunctions.waterDropHeader,
          enablePullUp: canLoadMore,
          onRefresh: controller.onRefresh,
          onLoading: controller.onLoading,
          child: (list.isEmpty)
              ? Container(
                  color: Colors.white,
                  child: const Center(
                    child: Text("Your inbox is empty"),
                  ),
                )
              : ListView.separated(
                  shrinkWrap: true,
                  itemCount: list.length,
                  padding: REdgeInsets.symmetric(horizontal: 20),
                  separatorBuilder: (_, int index) => 8.verticalSpace,
                  itemBuilder: (BuildContext context, int index) {
                    return SenderListWidget(
                      messagesListModel: controller.chatsAndGroups[index],
                      onTap: (messagesListModel) async {
                        await Navigator.pushNamed(
                          context,
                          CustomRouteNames.kChatScreenRoute,
                          arguments: ChatScreenArgs(
                            name: messagesListModel.title,
                            profilePicPath: messagesListModel.image,
                            otherUserId: messagesListModel.otherUserId,
                            groupData: messagesListModel.groupData,
                            onLastMessageUpdate: (m) =>
                                _onLastMessageUpdate(index, m),
                          ),
                        );
                      },
                    );
                  },
                ),
        );
      }),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          Navigator.pushNamed(
              context, CustomRouteNames.kSelectUserForChatScreenRoute);
        },
        child: const Icon(Icons.add),
      ),
    );
  }

  _onLastMessageUpdate(int index, ChatModel model) {
    if (mounted) {
      controller.chatsAndGroups[index].previewOfLastMessage =
          model.message ?? "";
      controller.chatsAndGroups[index].date =
          model.date ?? DateTime.now().millisecondsSinceEpoch;

      controller.chatsAndGroups.refresh();
    }
  }
}

class SenderListWidget extends StatefulWidget {
  const SenderListWidget({
    super.key,
    required this.messagesListModel,
    required this.onTap,
  });

  final MessagesListModel messagesListModel;
  final ValueChanged<MessagesListModel> onTap;

  @override
  State<SenderListWidget> createState() => _SenderListWidgetState();
}

class _SenderListWidgetState extends State<SenderListWidget> {
  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: () => widget.onTap(widget.messagesListModel),
      child: Container(
        padding: REdgeInsets.symmetric(vertical: 9),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.start,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            MyCircleImage(
              imageSize: 53.r,
              url: "${WebUrls.baseUrl}${widget.messagesListModel.image}",
              errorWidget: CustomImageWidget(
                imagePath: AssetsManager.kPersonMainIcon,
                imageColor: CustomAppColors.kDarkBlueTextColor,
                height: 53.r,
                width: 53.r,
              ),
            ),
            12.horizontalSpace,
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisAlignment: MainAxisAlignment.start,
                children: [
                  CustomTextWidget(
                    text: widget.messagesListModel.title,
                    fontColor: CustomAppColors.kDarkBlueTextColor,
                    fontSize: 16.sp,
                    fontWeight: FontWeight.w600,
                    isExpanded: false,
                  ),
                  4.verticalSpace,
                  (widget.messagesListModel.messageType ==
                          MessageType.message.name)
                      ? CustomTextWidget(
                          text: widget.messagesListModel.previewOfLastMessage,
                          fontColor: widget.messagesListModel.isRecent == true
                              ? CustomAppColors.kDarkBlueTextColor
                              : CustomAppColors.kLightGreyColor,
                          fontSize: 12.sp,
                          maxLines: 1,
                          fontWeight: FontWeight.w600,
                          textAlign: TextAlign.left,
                          isExpanded: false,
                        )
                      : FrequentFunctions.noWidget,
                ],
              ),
            ),
            Container(
              padding: REdgeInsets.only(right: 2),
              child: Column(
                children: [
                  CustomTextWidget(
                    text: FrequentFunctions.toTimesAgo(
                        DateTime.fromMillisecondsSinceEpoch(
                                widget.messagesListModel.date)
                            .toIso8601String()),
                    fontColor: CustomAppColors.kLightGreyColor,
                    fontSize: 12.sp,
                    fontWeight: FontWeight.w600,
                    isExpanded: false,
                  ),
                  widget.messagesListModel.noOfMessages != 0
                      ? Padding(
                          padding: EdgeInsets.only(top: 8.0.h),
                          child: CircleAvatar(
                            minRadius: 8.sp,
                            maxRadius: 8.sp,
                            backgroundColor: CustomAppColors.kBlackColor,
                            child: CustomTextWidget(
                              text: "${widget.messagesListModel.noOfMessages}",
                              isExpanded: false,
                              fontSize: 8.sp,
                              fontColor: CustomAppColors.kPrimaryColor,
                            ),
                          ),
                        )
                      : Container(),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}