lib/pages/practice/topic_picture_page.dart

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:wow_english/common/core/user_util.dart';
import 'package:wow_english/common/extension/string_extension.dart';
import 'package:wow_english/common/widgets/ow_image_widget.dart';
import 'package:wow_english/models/course_process_entity.dart';
import 'package:wow_english/pages/practice/topic_type.dart';
import 'package:wow_english/route/route.dart';
import '../../common/widgets/option_widget.dart';
import '../../common/widgets/recorder_widget.dart';
import '../../common/widgets/speaker_widget.dart';
import 'bloc/topic_picture_bloc.dart';
import 'widgets/practice_header_widget.dart';
class TopicPicturePage extends StatelessWidget {
  const TopicPicturePage({super.key, this.courseLessonId, this.moduleColor});
  final String? courseLessonId;
  final Color? moduleColor;
  @override
  Widget build(BuildContext context) {
    return BlocProvider(
      create: (context) => TopicPictureBloc(
          context, PageController(), courseLessonId ?? '', moduleColor)
        ..add(InitBlocEvent())
        ..add(RequestDataEvent()),
      child: _TopicPicturePage(),
    );
  }
}
class _TopicPicturePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return BlocListener<TopicPictureBloc, TopicPictureState>(
      listener: (context, state) {
        if (state is RequestDataState) {
          context.read<TopicPictureBloc>().add(CurrentPageIndexChangeEvent(0));
        }
        if (state is XSVoiceTestState) {}
      },
      child: _topicPictureView(),
    );
  }
  Widget _topicPictureView() =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          builder: (context, state) {
        final bloc = BlocProvider.of<TopicPictureBloc>(context);
        return Container(
          decoration: BoxDecoration(
            image: DecorationImage(
              image: AssetImage('read_background'.assetPng), // 背景图片路径
              fit: BoxFit.cover, // 适应图片的方式
            ),
          ),
          child: Stack(
            children: [
              Column(
                children: [
                  PracticeHeaderWidget(
                    color: bloc.moduleColor,
                    progress: bloc.currentPage,
                    total: bloc.entity?.topics?.length ?? 0,
                    onTap: () {
                      popPage(data: {
                        'currentStep': bloc.currentPage,
                        'courseLessonId': bloc.courseLessonId,
                        'isCompleted': bloc.isLastPage(),
                      });
                      // Navigator.pop(context);
                    },
                  ),
                  35.verticalSpace,
                  bloc.entity != null
                      ? Expanded(
                          child: PageView.builder(
                              itemCount: bloc.entity?.topics?.length,
                              scrollDirection: Axis.horizontal,
                              controller: bloc.pageController,
                              onPageChanged: (int index) {
                                bloc.add(CurrentPageIndexChangeEvent(index));
                              },
                              itemBuilder: (BuildContext context, int index) {
                                final bloc =
                                    BlocProvider.of<TopicPictureBloc>(context);
                                CourseProcessTopics? topics =
                                    bloc.entity?.topics![index];
                                bool isCurrentPage =
                                    index == bloc.currentPage - 1;
                                if (topics?.type ==
                                    TopicType.audioImageSelect.value) {
                                  //听音选图
                                  return _pageViewVoicePictureItemWidget(
                                      topics, isCurrentPage);
                                } else if (topics?.type ==
                                    TopicType.audioCharSelect.value) {
                                  //听音选字
                                  return _pageViewVoiceWordItemWidget(
                                      topics, isCurrentPage);
                                } else if (topics?.type ==
                                    TopicType.questionCharSelect.value) {
                                  //看题选字
                                  return _pageViewWordItemWidget(
                                      topics, isCurrentPage);
                                } else if (topics?.type ==
                                    TopicType.questionImageSelect.value) {
                                  //看题选图
                                  return _pageViewItemWidget(
                                      topics, isCurrentPage);
                                } else {
                                  //语音问答
                                  return _voiceAnswerItem(
                                      topics, isCurrentPage);
                                }
                              }),
                        )
                      : Container(
                          color: Colors.transparent,
                          child: const CircularProgressIndicator(),
                        ),
                ],
              )
            ],
          ),
        );
      });
  ///看题选图
  Widget _pageViewItemWidget(CourseProcessTopics? topics, bool isCurrentPage) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => isCurrentPage,
          builder: (context, state) {
            return SafeArea(
              child: Column(
                children: [
                  Text(topics?.word ?? '',
                      softWrap: true,
                      style: TextStyle(
                          fontSize: 21.sp, color: const Color(0xFF333333))),
                  26.verticalSpace,
                  SizedBox(
                    height: 143.h,
                    width: 143.w * (topics?.topicAnswerList?.length ?? 0),
                    child: ListView.builder(
                        scrollDirection: Axis.horizontal,
                        physics: const NeverScrollableScrollPhysics(),
                        itemCount: topics?.topicAnswerList?.length ?? 0,
                        itemBuilder: (context, index) {
                          return _decodeImageWidget(
                              index, topics?.topicAnswerList?[index]);
                        }),
                  ),
                ],
              ),
            );
          });
  Widget _decodeImageWidget(
          int index, CourseProcessTopicsTopicAnswerList? answerLis) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => s is SelectItemChangeState,
          builder: (context, state) {
            final bloc = BlocProvider.of<TopicPictureBloc>(context);
            final isAnswerOption = bloc.optionSelectItem == index;
            final answerCorrect =
                isAnswerOption && bloc.checkAnswerRight(index) == true;
            return Container(
              padding: EdgeInsets.symmetric(horizontal: 10.w),
              child: OptionWidget(
                onTap: () => bloc.add(SelectItemEvent(index)),
                isCorrect: isAnswerOption ? bloc.checkAnswerRight(index) : null,
                child: Container(
                  padding: const EdgeInsets.all(4.5),
                  decoration: BoxDecoration(
                    color: isAnswerOption
                        ? getResultColor(answerCorrect)
                        : Colors.white,
                    borderRadius: BorderRadius.circular(15),
                  ),
                  height: 143.h,
                  width: 143.w,
                  child: Container(
                    decoration: BoxDecoration(
                        color: Colors.white,
                        borderRadius: BorderRadius.circular(15),
                        border: Border.all(
                            width: 1.0, color: const Color(0xFF140C10)),
                        image: DecorationImage(
                            fit: BoxFit.fitWidth,
                            image: NetworkImage(answerLis?.picUrl ?? ''))),
                  ),
                ),
              ),
            );
          });
  ///看题选字
  Widget _pageViewWordItemWidget(
          CourseProcessTopics? topics, bool isCurrentPage) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => isCurrentPage,
          builder: (context, state) {
            return SafeArea(
              child: Column(
                children: [
                  Text(topics?.word ?? '',
                      softWrap: true,
                      style: TextStyle(
                          fontSize: 21.sp, color: const Color(0xFF333333))),
                  26.verticalSpace,
                  SizedBox(
                    height: 143.h,
                    width: 143.w * (topics?.topicAnswerList?.length ?? 0),
                    child: ListView.builder(
                        scrollDirection: Axis.horizontal,
                        itemCount: topics?.topicAnswerList?.length ?? 0,
                        physics: const NeverScrollableScrollPhysics(),
                        itemBuilder: (context, index) {
                          return _decodeWordWidget(
                              index, topics?.topicAnswerList?[index]);
                        }),
                  ),
                ],
              ),
            );
          });
  Widget _decodeWordWidget(
          int index, CourseProcessTopicsTopicAnswerList? answerLis) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => s is SelectItemChangeState,
          builder: (context, state) {
            final bloc = BlocProvider.of<TopicPictureBloc>(context);
            final isAnswerOption = bloc.optionSelectItem == index;
            final answerCorrect =
                isAnswerOption && bloc.checkAnswerRight(index) == true;
            return Container(
              padding: EdgeInsets.symmetric(horizontal: 10.w),
              child: OptionWidget(
                onTap: () => bloc.add(SelectItemEvent(index)),
                isCorrect: isAnswerOption ? bloc.checkAnswerRight(index) : null,
                child: Container(
                  width: 143.w,
                  height: 143.h,
                  padding: EdgeInsets.only(
                      left: 13.w, right: 13.w, top: 13.h, bottom: 13.h),
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.circular(15),
                    border:
                        Border.all(width: 1.0, color: const Color(0xFF140C10)),
                  ),
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.end,
                    children: [
                      Expanded(
                        child: Container(
                          alignment: Alignment.center,
                          child: Text(answerLis?.word ?? '',
                              style: TextStyle(
                                  fontSize: 20.sp,
                                  color: const Color(0xFF333333))),
                        ),
                      ),
                      Container(
                        height: 30.h,
                        width: double.infinity,
                        decoration: BoxDecoration(
                          color: isAnswerOption
                              ? getResultColor(answerCorrect)
                              : Colors.white,
                          borderRadius: BorderRadius.circular(15.r),
                          border: Border.all(
                              width: 1.5, color: const Color(0xFF140C10)),
                        ),
                        alignment: Alignment.center,
                        child: Image.asset('choose'.assetPng),
                      )
                    ],
                  ),
                ),
              ),
            );
          });
  ///听音选图
  Widget _pageViewVoicePictureItemWidget(
          CourseProcessTopics? topics, bool isCurrentPage) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (previous, current) {
        return isCurrentPage;
      }, builder: (context, state) {
        final bloc = BlocProvider.of<TopicPictureBloc>(context);
        return SafeArea(
          child: Column(
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  SpeakerWidget(
                    isPlaying: isCurrentPage && bloc.isAudioPlaying(),
                    // 控制动画播放
                    width: 32.w,
                    height: 32.w,
                    onTap: () {
                      bloc.add(VoicePlayEvent());
                    },
                  ),
                  10.horizontalSpace,
                  Text(topics?.word ?? '',
                      style: TextStyle(
                          fontSize: 20.sp, color: const Color(0xFF333333)))
                ],
              ),
              26.verticalSpace,
              SizedBox(
                height: 143.h,
                width: 203.w * (topics?.topicAnswerList?.length ?? 0),
                child: ListView.builder(
                    scrollDirection: Axis.horizontal,
                    physics: const NeverScrollableScrollPhysics(),
                    itemCount: topics?.topicAnswerList?.length ?? 0,
                    itemBuilder: (BuildContext context, int index) {
                      return _decodeVoiceImageWidget(
                          index, topics?.topicAnswerList?[index]);
                    }),
              )
            ],
          ),
        );
      });
  Widget _decodeVoiceImageWidget(
          int index, CourseProcessTopicsTopicAnswerList? answerList) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => s is SelectItemChangeState,
          builder: (context, state) {
            final bloc = BlocProvider.of<TopicPictureBloc>(context);
            final isAnswerOption = bloc.optionSelectItem == index;
            final answerCorrect =
                isAnswerOption && bloc.checkAnswerRight(index) == true;
            return OptionWidget(
              onTap: () => bloc.add(SelectItemEvent(index)),
              isCorrect: isAnswerOption ? bloc.checkAnswerRight(index) : null,
              child: Container(
                padding: EdgeInsets.symmetric(horizontal: 20.w),
                child: Container(
                  padding: const EdgeInsets.all(4.5),
                  decoration: BoxDecoration(
                    color: isAnswerOption
                        ? getResultColor(answerCorrect)
                        : Colors.white,
                    borderRadius: BorderRadius.circular(15),
                  ),
                  height: 143.h,
                  width: 163.w,
                  child: Container(
                    decoration: BoxDecoration(
                        color: Colors.white,
                        borderRadius: BorderRadius.circular(15),
                        image: DecorationImage(
                            fit: BoxFit.fill,
                            image: NetworkImage(answerList?.picUrl ?? ''))),
                  ),
                ),
              ),
            );
          });
  ///听音选字
  Widget _pageViewVoiceWordItemWidget(
          CourseProcessTopics? topics, bool isCurrentPage) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => isCurrentPage,
          builder: (context, state) {
            final bloc = BlocProvider.of<TopicPictureBloc>(context);
            return SafeArea(
              child: Column(
                children: [
                  SpeakerWidget(
                    isPlaying: isCurrentPage && bloc.isAudioPlaying(),
                    width: 32.w,
                    height: 32.w,
                    onTap: () {
                      bloc.add(VoicePlayEvent());
                    },
                  ),
                  26.verticalSpace,
                  SizedBox(
                    width: 163.w * (topics?.topicAnswerList?.length ?? 0),
                    height: 143.h,
                    child: ListView.builder(
                        scrollDirection: Axis.horizontal,
                        itemCount: topics?.topicAnswerList?.length,
                        physics: const NeverScrollableScrollPhysics(),
                        itemBuilder: (BuildContext context, int index) {
                          return _decodeVoiceWordImageWidget(
                              index, topics!.topicAnswerList![index]);
                        }),
                  ),
                ],
              ),
            );
          });
  Widget _decodeVoiceWordImageWidget(
          int index, CourseProcessTopicsTopicAnswerList answerList) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => s is SelectItemChangeState,
          builder: (context, state) {
            final bloc = BlocProvider.of<TopicPictureBloc>(context);
            final isAnswerOption = bloc.optionSelectItem == index;
            final answerCorrect =
                isAnswerOption && bloc.checkAnswerRight(index) == true;
            return OptionWidget(
              onTap: () => bloc.add(SelectItemEvent(index)),
              isCorrect: isAnswerOption ? bloc.checkAnswerRight(index) : null,
              child: Container(
                width: 163.w,
                height: 143.h,
                padding: EdgeInsets.symmetric(horizontal: 10.w),
                child: Container(
                  width: 143.w,
                  height: 143.h,
                  padding: EdgeInsets.only(
                      left: 13.w, right: 13.w, top: 13.h, bottom: 13.h),
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.circular(15),
                    border:
                        Border.all(width: 1.0, color: const Color(0xFF140C10)),
                  ),
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.end,
                    children: [
                      Expanded(
                        child: Container(
                          alignment: Alignment.center,
                          child: Text(answerList.word ?? '',
                              style: TextStyle(
                                  fontSize: 20.sp,
                                  color: const Color(0xFF333333))),
                        ),
                      ),
                      Container(
                        height: 30.h,
                        width: double.infinity,
                        decoration: BoxDecoration(
                          color: isAnswerOption
                              ? getResultColor(answerCorrect)
                              : Colors.white,
                          borderRadius: BorderRadius.circular(15.r),
                          border: Border.all(
                              width: 1.5, color: const Color(0xFF140C10)),
                        ),
                        alignment: Alignment.center,
                        child: Image.asset('choose'.assetPng),
                      )
                    ],
                  ),
                ),
              ),
            );
          });
  ///语音问答
  Widget _voiceAnswerItem(CourseProcessTopics? topics, bool isCurrentPage) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          buildWhen: (_, s) => isCurrentPage,
          builder: (context, state) {
            final bloc = BlocProvider.of<TopicPictureBloc>(context);
            return Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                ClipRRect(
                  borderRadius: BorderRadius.circular(20),
                  child: Container(
                    color: Colors.white,
                    child: OwImageWidget(
                      name: topics?.picUrl ?? '',
                      height: 186.h,
                      width: 186.w,
                    ),
                  ),
                ),
                120.horizontalSpace,
                Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Row(
                      children: [
                        SpeakerWidget(
                          isPlaying: isCurrentPage && bloc.isAudioPlaying(),
                          // 控制动画播放
                          isClickable: !bloc.isRecording,
                          // 控制是否可点击
                          width: 45.w,
                          height: 45.w,
                          onTap: () {
                            bloc.add(VoicePlayEvent());
                          },
                        ),
                        10.horizontalSpace,
                        Text(topics?.word ?? '')
                      ],
                    ),
                    70.verticalSpace,
                    RecorderWidget(
                      isPlaying: bloc.isRecording,
                      width: 72.w,
                      height: 72.w,
                      onTap: () {
                        if (bloc.isRecording) {
                          bloc.add(XSVoiceStopEvent());
                          return;
                        }
                        if (topics?.type == TopicType.voiceQuestion.value ||
                            topics?.type == TopicType.voiceWord.value) {
                          bloc.add(XSVoiceStartEvent(topics?.keyWord ?? '', '0',
                              UserUtil.getUser()!.id.toString()));
                        } else {
                          bloc.add(XSVoiceStartEvent(topics?.word ?? '', '0',
                              UserUtil.getUser()!.id.toString()));
                        }
                      },
                    ),
                  ],
                )
              ],
            );
          });
  Color getResultColor(bool correct) {
    if (correct) {
      return const Color(0xFF19D717);
    } else {
      return const Color(0xFFFF463C);
    }
  }
}