import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:tm_app/core/constants/assets.dart';
import 'package:tm_app/core/constants/strings.dart';
import 'package:tm_app/core/routes/app_routes.dart';
import 'package:tm_app/core/theme/colors.dart';
import 'package:tm_app/core/utils/size_config.dart';
import 'package:tm_app/view_models/home_view_model.dart';
import 'package:tm_app/views/shared/desktop_navigation_widget.dart';

import '../widgets.dart';

class DesktopHomePage extends StatelessWidget {
  const DesktopHomePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Consumer<HomeViewModel>(
        builder: (context, homeViewModel, child) {
          if (homeViewModel.isLoading) {
            return const Center(
              child: CircularProgressIndicator(color: AppColors.secondary50),
            );
          }

          if (homeViewModel.errorMessage != null) {
            return Center(child: Text(homeViewModel.errorMessage!));
          }

          if (homeViewModel.tenderApprovalsStateResponse != null &&
              homeViewModel.data != null &&
              homeViewModel.feedbackStats != null) {
            return Column(
              children: [
                DesktopNavigationWidget(
                  currentIndex: 0, // Home index
                  onTabChanged: (index) {
                    // Navigate to different screens based on index
                    switch (index) {
                      case 0:
                        // Already on home
                        break;
                      case 1:
                        // Navigate to tenders
                        Router.neglect(
                          context,
                          () => TendersRouteData().go(context),
                        );
                        break;
                      case 2:
                        // Navigate to profile
                        Router.neglect(
                          context,
                          () => ProfileRouteData().go(context),
                        );
                        break;
                    }
                  },
                ),
                Expanded(
                  child: Center(
                    child: SizedBox(
                      width: 780,
                      child: SingleChildScrollView(
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.center,
                          children: [
                            SizedBox(height: 55),
                            // SizedBox(width: 780, child: NotificationCard()),
                            SizedBox(height: 40.0),
                            _progressBarsRow(homeViewModel),
                            SizedBox(height: 32.0.h()),
                            Padding(
                              padding: EdgeInsets.symmetric(
                                horizontal: 15.0.w(),
                              ),
                              child: _firstTenderCardsRow(
                                context,
                                homeViewModel,
                              ),
                            ),
                            SizedBox(height: 32.0.h()),
                            _yourTenderText(homeViewModel),
                            SizedBox(height: 8.0.h()),
                            _bottomListView(homeViewModel),
                          ],
                        ),
                      ),
                    ),
                  ),
                ),
              ],
            );
          }
          return const Center(
            child: CircularProgressIndicator(color: AppColors.secondary50),
          );
        },
      ),
    );
  }

  Widget _progressBarsRow(HomeViewModel homeViewModel) {
    return Row(
      // mainAxisAlignment: MainAxisAlignment.spaceBetween,
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        ProgressBarColumn(
          text: AppStrings.partnership,
          value: homeViewModel.partnershipPercent,
          amount: homeViewModel.partnershipPercent.toString(),
          circularProgressIndicatorWidth: 176,
          circularProgressIndicatorHeight: 176,
        ),
        SizedBox(width: 106),
        ProgressBarColumn(
          text: AppStrings.selfApply,
          value: homeViewModel.selfApplyPercent,
          amount: homeViewModel.selfApplyPercent.toString(),
          circularProgressIndicatorWidth: 176,
          circularProgressIndicatorHeight: 176,
        ),
      ],
    );
  }

  Widget _firstTenderCardsRow(
    BuildContext context,
    HomeViewModel homeViewModel,
  ) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Expanded(
          child: TenderCard(
            backgroundColor: AppColors.primary20,
            iconPath: AssetsManager.arrows,
            title: AppStrings.tenderSubmitted,
            amount:
                homeViewModel
                    .tenderApprovalsStateResponse!
                    .data!
                    .submittedTenders
                    .toString(),

            textColor: AppColors.mainBlue,
            enableTap: true,
            width: 178,
            height: 148,
            onTap: () {
              YourTendersRouteData().push(context);
            },
          ),
        ),
        SizedBox(width: 10),
        Expanded(
          child: TenderCard(
            backgroundColor: AppColors.primary10,
            iconPath: AssetsManager.approve,
            title: AppStrings.approvedTenders,
            amount: '0',
            textColor: AppColors.jellyBean,
            enableTap: true,
            width: 178,
            height: 148,
            onTap: () {
              YourTendersRouteData().push(context);
            },
          ),
        ),
        SizedBox(width: 10),
        TenderCard(
          backgroundColor: AppColors.orange10,
          iconPath: AssetsManager.shield,
          title: AppStrings.tenderValue,
          amount: '3',
          textColor: AppColors.orange,
          enableTap: true,
          width: 178,
          height: 148,
          onTap: () {},
        ),
        SizedBox(width: 10),
        TenderCard(
          backgroundColor: AppColors.grey10,
          iconPath: AssetsManager.thumbLike,
          title: AppStrings.likedTenders,
          amount: homeViewModel.feedbackStats?.totalLikes.toString() ?? '0',
          textColor: AppColors.grey80,
          enableTap: false,
          width: 178,
          height: 148,
          onTap: () {},
        ),
      ],
    );
  }

  Widget _yourTenderText(HomeViewModel homeViewModel) {
    final isYourTenders = homeViewModel.data?.data?.isNotEmpty ?? false;
    return ConstrainedBox(
      constraints: BoxConstraints(maxWidth: 740),
      child: Align(
        alignment: Alignment.centerLeft,
        child: Text(
          isYourTenders
              ? AppStrings.yourTenders
              : AppStrings.recommendedTenders,
          style: TextStyle(
            fontSize: 18.0.sp(),
            fontWeight: FontWeight.w700,
            color: AppColors.grey80,
          ),
        ),
      ),
    );
  }

  Widget _bottomListView(HomeViewModel homeViewModel) {
    final controller = ScrollController();
    controller.addListener(() {
      if (homeViewModel.isRecommendedMode) {
        if (controller.position.pixels >=
            controller.position.maxScrollExtent - 200) {
          if (!homeViewModel.isLoadingMore && homeViewModel.hasMore) {
            homeViewModel.getHomeRecommandTenders();
          }
        }
      }
    });

    return SizedBox(
      width: 740,
      height: 387.0,
      child: ListView.builder(
        controller: controller,
        padding: EdgeInsets.only(bottom: 20),
        itemCount:
            homeViewModel.tenders.length +
            (homeViewModel.isLoadingMore ? 1 : 0),
        scrollDirection: Axis.horizontal,
        itemBuilder: (context, index) {
          if (index < homeViewModel.tenders.length) {
            return TendersListItem(tender: homeViewModel.tenders[index]);
          } else {
            return Center(
              child: Padding(
                padding: EdgeInsets.all(16.0),
                child: CircularProgressIndicator(color: AppColors.secondary50),
              ),
            );
          }
        },
      ),
    );
  }
}