import 'dart:math';

import 'package:fluffychat/pangea/enum/bar_chart_view_enum.dart';
import 'package:fluffychat/pangea/enum/construct_type_enum.dart';
import 'package:fluffychat/pangea/enum/time_span.dart';
import 'package:fluffychat/pangea/pages/analytics/analytics_language_button.dart';
import 'package:fluffychat/pangea/pages/analytics/analytics_list_tile.dart';
import 'package:fluffychat/pangea/pages/analytics/analytics_view_button.dart';
import 'package:fluffychat/pangea/pages/analytics/base_analytics.dart';
import 'package:fluffychat/pangea/pages/analytics/construct_list.dart';
import 'package:fluffychat/pangea/pages/analytics/messages_bar_chart.dart';
import 'package:fluffychat/pangea/pages/analytics/time_span_menu_button.dart';
import 'package:fluffychat/widgets/layouts/max_width_body.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:go_router/go_router.dart';

class BaseAnalyticsView extends StatelessWidget {
  const BaseAnalyticsView({
    super.key,
    required this.controller,
  });

  final BaseAnalyticsController controller;

  Widget chartView(BuildContext context) {
    switch (controller.currentView) {
      case BarChartViewSelection.messages:
        return MessagesBarChart(
          chartAnalytics: controller.chartData,
        );
      case BarChartViewSelection.grammar:
        return ConstructList(
          constructType: ConstructTypeEnum.grammar,
          defaultSelected: controller.widget.defaultSelected,
          selected: controller.selected,
          controller: controller,
          pangeaController: controller.pangeaController,
          refreshStream: controller.refreshStream,
        );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        centerTitle: true,
        title: RichText(
          text: TextSpan(
            style: TextStyle(
              color: Theme.of(context).textTheme.bodyLarge!.color,
              fontSize: 18,
              fontWeight: FontWeight.w700,
            ),
            children: [
              TextSpan(
                text: controller.widget.pageTitle,
                style: const TextStyle(decoration: TextDecoration.underline),
                recognizer: TapGestureRecognizer()
                  ..onTap = () {
                    final String route =
                        "/rooms/${controller.widget.defaultSelected.type.route}";
                    context.go(route);
                  },
              ),
              if (controller.activeSpace != null)
                const TextSpan(
                  text: " > ",
                ),
              if (controller.activeSpace != null)
                TextSpan(
                  text: controller.activeSpace!.getLocalizedDisplayname(),
                ),
              const TextSpan(
                text: " > ",
              ),
              TextSpan(
                text: controller.currentView.string(context),
              ),
            ],
          ),
          overflow: TextOverflow.ellipsis,
          textAlign: TextAlign.center,
        ),
      ),
      body: MaxWidthBody(
        withScrolling: false,
        child: Column(
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                TimeSpanMenuButton(
                  value: controller.currentTimeSpan,
                  onChange: (TimeSpan value) =>
                      controller.toggleTimeSpan(context, value),
                ),
                AnalyticsViewButton(
                  value: controller.currentView,
                  onChange: controller.toggleView,
                ),
                AnalyticsLanguageButton(
                  value: controller
                      .pangeaController.analytics.currentAnalyticsLang,
                  onChange: (lang) => controller.toggleSpaceLang(lang),
                  languages: controller.widget.targetLanguages,
                ),
              ],
            ),
            const SizedBox(
              height: 10,
            ),
            Expanded(
              flex: 1,
              child: chartView(context),
            ),
            Expanded(
              flex: 1,
              child: DefaultTabController(
                length: 2,
                child: Column(
                  children: [
                    TabBar(
                      tabs: [
                        ...controller.widget.tabs.map(
                          (tab) => Tab(
                            icon: Icon(
                              tab.icon,
                              color: Theme.of(context)
                                  .colorScheme
                                  .onSurfaceVariant,
                            ),
                          ),
                        ),
                      ],
                    ),
                    Expanded(
                      child: SingleChildScrollView(
                        child: SizedBox(
                          height: max(
                                controller.widget.tabs[0].items.length + 1,
                                controller.widget.tabs[1].items.length,
                              ) *
                              72,
                          child: TabBarView(
                            physics: const NeverScrollableScrollPhysics(),
                            children: [
                              Column(
                                crossAxisAlignment: CrossAxisAlignment.stretch,
                                children: [
                                  ...controller.widget.tabs[0].items.map(
                                    (item) => AnalyticsListTile(
                                      refreshStream: controller.refreshStream,
                                      avatar: item.avatar,
                                      defaultSelected:
                                          controller.widget.defaultSelected,
                                      selected: AnalyticsSelected(
                                        item.id,
                                        controller.widget.tabs[0].type,
                                        item.displayName,
                                      ),
                                      isSelected:
                                          controller.isSelected(item.id),
                                      onTap: (_) => controller.toggleSelection(
                                        AnalyticsSelected(
                                          item.id,
                                          controller.widget.tabs[0].type,
                                          item.displayName,
                                        ),
                                      ),
                                      allowNavigateOnSelect: controller
                                          .widget.tabs[0].allowNavigateOnSelect,
                                      pangeaController:
                                          controller.pangeaController,
                                      controller: controller,
                                    ),
                                  ),
                                  if (controller.widget.defaultSelected.type ==
                                      AnalyticsEntryType.space)
                                    AnalyticsListTile(
                                      refreshStream: controller.refreshStream,
                                      defaultSelected:
                                          controller.widget.defaultSelected,
                                      avatar: null,
                                      selected: AnalyticsSelected(
                                        controller.widget.defaultSelected.id,
                                        AnalyticsEntryType.privateChats,
                                        L10n.of(context)!.allPrivateChats,
                                      ),
                                      allowNavigateOnSelect: false,
                                      isSelected: controller.isSelected(
                                        controller.widget.defaultSelected.id,
                                      ),
                                      onTap: controller.toggleSelection,
                                      pangeaController:
                                          controller.pangeaController,
                                      controller: controller,
                                    ),
                                ],
                              ),
                              Column(
                                crossAxisAlignment: CrossAxisAlignment.stretch,
                                children: controller.widget.tabs[1].items
                                    .map(
                                      (item) => AnalyticsListTile(
                                        refreshStream: controller.refreshStream,
                                        avatar: item.avatar,
                                        defaultSelected:
                                            controller.widget.defaultSelected,
                                        selected: AnalyticsSelected(
                                          item.id,
                                          controller.widget.tabs[1].type,
                                          item.displayName,
                                        ),
                                        isSelected:
                                            controller.isSelected(item.id),
                                        onTap: controller.toggleSelection,
                                        allowNavigateOnSelect: controller.widget
                                            .tabs[1].allowNavigateOnSelect,
                                        pangeaController:
                                            controller.pangeaController,
                                        controller: controller,
                                      ),
                                    )
                                    .toList(),
                              ),
                            ],
                          ),
                        ),
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}