workavia-mail-front/lib/features/thread/presentation/thread_view.dart

import 'package:core/core.dart';
import 'package:core/presentation/extensions/color_extension.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:get/get.dart';
import 'package:model/email/presentation_email.dart';
import 'package:model/model.dart';
import 'package:tmail_ui_user/features/thread/presentation/model/load_more_state.dart';
import 'package:tmail_ui_user/features/thread/presentation/thread_controller.dart';
import 'package:tmail_ui_user/features/thread/presentation/widgets/app_bar_thread_select_mode_active_builder.dart';
import 'package:tmail_ui_user/features/thread/presentation/widgets/app_bar_thread_widget_builder.dart';
import 'package:tmail_ui_user/features/thread/presentation/widgets/email_context_menu_action_builder.dart';
import 'package:tmail_ui_user/features/thread/presentation/widgets/email_tile_builder.dart';
import 'package:tmail_ui_user/main/localizations/app_localizations.dart';

class ThreadView extends GetWidget<ThreadController> {

  final responsiveUtils = Get.find<ResponsiveUtils>();
  final imagePaths = Get.find<ImagePaths>();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: false,
      backgroundColor: responsiveUtils.isMobile(context) ? AppColor.bgMailboxListMail : AppColor.primaryLightColor,
      body: SafeArea(
        right: false,
        left: false,
        child: Container(
          alignment: Alignment.center,
          padding: EdgeInsets.zero,
          child: Column(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              _buildAppBarThread(context),
              _buildLoadingView(),
              Expanded(child: _buildListEmail(context)),
              _buildLoadingViewLoadMore()
            ]
          )
        )
      ),
      floatingActionButton: FloatingActionButton(
        elevation: 4.0,
        child: new Icon(Icons.add),
        backgroundColor: AppColor.appColor,
        onPressed: () => controller.composeEmailAction()
      )
    );
  }

  Widget _buildAppBarThread(BuildContext context) {
    return Obx(() => controller.currentSelectMode.value == SelectMode.ACTIVE
      ? _buildAppBarSelectModeActive(context)
      : _buildAppBarNormal(context));
  }

  Widget _buildAppBarNormal(BuildContext context) {
    return Obx(() => Padding(
      padding: EdgeInsets.only(left: 15, right: 12),
      child: AppBarThreadWidgetBuilder(
            context,
            imagePaths,
            responsiveUtils,
            controller.mailboxDashBoardController.selectedMailbox.value,
            controller.mailboxDashBoardController.userProfile.value)
        .onOpenListMailboxActionClick(() => controller.openMailboxLeftMenu())
        .build()));
  }

  Widget _buildAppBarSelectModeActive(BuildContext context) {
    return Obx(() => Padding(
      padding: EdgeInsets.only(left: 15, right: 12),
      child: (AppBarThreadSelectModeActiveBuilder(
              context,
              imagePaths,
              controller.getListEmailSelected(),
              responsiveUtils)
          ..addCloseActionClick(() => controller.cancelSelectEmail())
          ..addRemoveEmailActionClick((listEmail) => {})
          ..addOnMarkAsEmailReadActionClick((listEmail) => controller.markAsSelectedEmailRead(listEmail))
          ..addOpenContextMenuActionClick((listEmail) =>
              controller.openContextMenuSelectedEmail(context, _contextMenuEmailActionTile(context, listEmail)))
          ..addOnOpenPopupMenuActionClick((listEmail, position) =>
              controller.openPopupMenuSelectedEmail(context, position, _popupMenuEmailActionTile(context, listEmail))))
        .build()));
  }

  List<Widget> _contextMenuEmailActionTile(BuildContext context, List<PresentationEmail> listEmail) {
    return [
      _moveToTrashAction(context, listEmail),
      _moveToMailboxAction(context, listEmail),
      _markAsReadAction(context, listEmail),
      _markAsStarAction(context, listEmail),
      _moveToSpamAction(context, listEmail),
      SizedBox(height: 30),
    ];
  }

  Widget _markAsReadAction(BuildContext context, List<PresentationEmail> listEmail) {
    return (EmailContextMenuActionBuilder(
            Key('mark_as_read_context_menu_action'),
            SvgPicture.asset(imagePaths.icEyeDisable, width: 24, height: 24, fit: BoxFit.fill),
            controller.isAllEmailRead(listEmail)
                ? AppLocalizations.of(context).mark_as_unread
                : AppLocalizations.of(context).mark_as_read,
            listEmail)
          ..onActionClick((data) => controller.markAsSelectedEmailRead(data, fromContextMenuAction: true)))
        .build();
  }

  Widget _moveToTrashAction(BuildContext context, List<PresentationEmail> listEmail) {
    return (EmailContextMenuActionBuilder(
            Key('move_to_trash_context_menu_action'),
            SvgPicture.asset(imagePaths.icTrash, width: 24, height: 24, fit: BoxFit.fill),
            AppLocalizations.of(context).move_to_trash,
            listEmail)
        ..onActionClick((data) => {}))
      .build();
  }

  Widget _moveToMailboxAction(BuildContext context, List<PresentationEmail> listEmail) {
    return (EmailContextMenuActionBuilder(
            Key('move_to_mailbox_context_menu_action'),
            SvgPicture.asset(imagePaths.icFolder, width: 24, height: 24, fit: BoxFit.fill),
            AppLocalizations.of(context).move_to_mailbox,
            listEmail)
        ..onActionClick((data) => controller.moveSelectedMultipleEmailToMailboxAction(data)))
      .build();
  }

  Widget _markAsStarAction(BuildContext context, List<PresentationEmail> listEmail) {
    final markStarAction = controller.isAllEmailMarkAsStar(listEmail) ? MarkStarAction.unMarkStar : MarkStarAction.markStar;

    return (EmailContextMenuActionBuilder(
            Key('mark_as_star_context_menu_action'),
            SvgPicture.asset(
                markStarAction == MarkStarAction.markStar ? imagePaths.icFlag : imagePaths.icFlagged,
                width: 24,
                height: 24,
                fit: BoxFit.fill),
            markStarAction == MarkStarAction.markStar
                ? AppLocalizations.of(context).mark_as_star
                : AppLocalizations.of(context).mark_as_unstar,
            listEmail)
          ..onActionClick((data) => controller.markAsStarSelectedMultipleEmail(data, markStarAction)))
        .build();
  }

  Widget _moveToSpamAction(BuildContext context, List<PresentationEmail> listEmail) {
    return (EmailContextMenuActionBuilder(
            Key('move_to_spam_context_menu_action'),
            SvgPicture.asset(imagePaths.icMailboxSpam, width: 24, height: 24, fit: BoxFit.fill),
            AppLocalizations.of(context).move_to_spam,
            listEmail)
        ..onActionClick((data) => {}))
      .build();
  }

  List<PopupMenuItem> _popupMenuEmailActionTile(BuildContext context, List<PresentationEmail> listEmail) {
    return [
      PopupMenuItem(child: _moveToTrashAction(context, listEmail)),
      PopupMenuItem(child: _moveToMailboxAction(context, listEmail)),
      PopupMenuItem(child: _markAsReadAction(context, listEmail)),
      PopupMenuItem(child: _markAsStarAction(context, listEmail)),
      PopupMenuItem(child: _moveToSpamAction(context, listEmail)),
    ];
  }

  Widget _buildLoadingView() {
    return Obx(() => controller.viewState.value.fold(
      (failure) => SizedBox.shrink(),
      (success) => success is LoadingState && controller.loadMoreState.value != LoadMoreState.LOADING
        ? Center(child: Padding(
            padding: EdgeInsets.only(top: 16, bottom: 16),
            child: SizedBox(
              width: 24,
              height: 24,
              child: CircularProgressIndicator(color: AppColor.primaryColor))))
        : SizedBox.shrink()));
  }

  Widget _buildLoadingViewLoadMore() {
    return Obx(() => controller.loadMoreState.value == LoadMoreState.LOADING
      ? Center(child: Padding(
          padding: EdgeInsets.only(top: 16, bottom: 16),
          child: SizedBox(
            width: 24,
            height: 24,
            child: CircularProgressIndicator(color: AppColor.primaryColor))))
      : SizedBox.shrink());
  }

  Widget _buildListEmail(BuildContext context) {
    return Container(
      margin: EdgeInsets.zero,
      width: double.infinity,
      height: double.infinity,
      alignment: Alignment.center,
      padding: EdgeInsets.zero,
      color: responsiveUtils.isMobile(context) ? AppColor.bgMailboxListMail : Colors.white,
      child: Obx(() => controller.currentSelectMode.value == SelectMode.INACTIVE
        ? controller.emailList.isNotEmpty
            ? RefreshIndicator(
                color: AppColor.primaryColor,
                onRefresh: () async => controller.refreshGetAllEmailAction(),
                child: _buildListEmailBody(context, controller.emailList))
            : RefreshIndicator(
                color: AppColor.primaryColor,
                onRefresh: () async => controller.refreshGetAllEmailAction(),
                child: _buildEmptyEmail(context))
        : controller.emailList.isNotEmpty
            ? _buildListEmailBody(context, controller.emailList)
            : _buildEmptyEmail(context)));
  }

  Widget _buildListEmailBody(BuildContext context, List<PresentationEmail> listPresentationEmail) {
    return NotificationListener<ScrollNotification>(
      onNotification: (ScrollNotification scrollInfo) {
        if (scrollInfo is ScrollEndNotification
            && controller.loadMoreState.value == LoadMoreState.IDLE
            && scrollInfo.metrics.pixels == scrollInfo.metrics.maxScrollExtent) {
          controller.loadMoreEmailAction();
        }
        return false;
      },
      child: ListView.builder(
        controller: controller.listEmailController,
        physics: AlwaysScrollableScrollPhysics(),
        padding: EdgeInsets.only(top: 16),
        key: Key('presentation_email_list'),
        itemCount: listPresentationEmail.length,
        itemBuilder: (context, index) => Obx(() => (EmailTileBuilder(
                context,
                imagePaths,
                controller.getSelectMode(listPresentationEmail[index], controller.mailboxDashBoardController.selectedEmail.value),
                listPresentationEmail[index],
                responsiveUtils,
                controller.currentSelectMode.value)
            ..onOpenEmailAction((selectedEmail) => controller.previewEmail(context, selectedEmail))
            ..onSelectEmailAction((selectedEmail) => controller.selectEmail(context, selectedEmail))
            ..addOnMarkAsStarEmailActionClick((selectedEmail) => controller.markAsStarEmail(selectedEmail)))
          .build()),
      ));
  }

  Widget _buildEmptyEmail(BuildContext context) {
    return Obx(() => controller.viewState.value.fold(
      (failure) => SizedBox.shrink(),
      (success) => !(success is LoadingState)
        ? (BackgroundWidgetBuilder(context)
            ..key(Key('empty_email_background'))
            ..image(SvgPicture.asset(imagePaths.icEmptyImageDefault, width: 120, height: 120, fit: BoxFit.fill))
            ..text(AppLocalizations.of(context).no_emails))
          .build()
        : SizedBox.shrink())
    );
  }
}