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/app_consts.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/pages/practice/widgets/shake_widget.dart';
import 'package:wow_english/route/route.dart';
import 'package:wow_english/utils/toast_util.dart';
import '../../common/widgets/speaker_widget.dart';
import '../../common/widgets/throttledGesture_gesture_detector.dart';
import '../../utils/log_util.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())
        ..add(XSVoiceInitEvent({
          'appKey': AppConsts.xsAppKey,
          'service': AppConsts.xsAppService,
          'secretKey': AppConsts.xsAppSecretKey,
          'userId': UserUtil.getUser()!.id.toString(),
        })),
      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) {
                                CourseProcessTopics? topics =
                                    bloc.entity?.topics![index];
                                if (topics?.type ==
                                    TopicType.audioImageSelect.value) {
                                  //听音选图
                                  return _pageViewVoicePictureItemWidget(
                                      topics);
                                } else if (topics?.type ==
                                    TopicType.audioCharSelect.value) {
                                  //听音选字
                                  return _pageViewVoiceWordItemWidget(topics);
                                } else if (topics?.type ==
                                    TopicType.questionCharSelect.value) {
                                  //看题选字
                                  return _pageViewWordItemWidget(topics);
                                } else if (topics?.type ==
                                    TopicType.questionImageSelect.value) {
                                  //看题选图
                                  return _pageViewItemWidget(topics);
                                } else {
                                  //语音问答
                                  return _voiceAnswerItem(topics);
                                }
                              }),
                        )
                      : Container(
                          color: Colors.transparent,
                          child: const CircularProgressIndicator(),
                        ),
                ],
              )
            ],
          ),
        );
      });
  ///看题选图
  Widget _pageViewItemWidget(CourseProcessTopics? topics) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          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.selectItem == index;
            final answerCorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == true;
            final answerIncorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == false;
            return Container(
              padding: EdgeInsets.symmetric(horizontal: 10.w),
              child: GestureDetector(
                onTap: () => bloc.add(SelectItemEvent(index)),
                child: ShakeWidget(
                  shouldShake: answerIncorrect,
                  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) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          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.selectItem == index;
            final answerCorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == true;
            final answerIncorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == false;
            return Container(
              padding: EdgeInsets.symmetric(horizontal: 10.w),
              child: GestureDetector(
                onTap: () => bloc.add(SelectItemEvent(index)),
                child: ShakeWidget(
                  shouldShake: answerIncorrect,
                  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) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          builder: (context, state) {
        final bloc = BlocProvider.of<TopicPictureBloc>(context);
        return SafeArea(
          child: Column(
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  GestureDetector(
                    onTap: () {
                      bloc.add(VoicePlayEvent());
                    },
                    child: Image.asset(
                      bloc.voicePlayState == VoicePlayState.playing
                          ? 'reade_answer'.assetGif
                          : 'voice'.assetPng,
                      height: 33.h,
                      width: 30.w,
                    ),
                  ),
                  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.selectItem == index;
            final answerCorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == true;
            final answerIncorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == false;
            return ShakeWidget(
              shouldShake: answerIncorrect,
              child: Container(
                padding: EdgeInsets.symmetric(horizontal: 20.w),
                child: GestureDetector(
                  onTap: () => bloc.add(SelectItemEvent(index)),
                  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) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          builder: (context, state) {
        final bloc = BlocProvider.of<TopicPictureBloc>(context);
        return SafeArea(
          child: Column(
            children: [
              GestureDetector(
                  onTap: () {
                    bloc.add(VoicePlayEvent());
                  },
                  child: Image.asset(
                      bloc.voicePlayState == VoicePlayState.playing
                          ? 'reade_answer'.assetGif
                          : 'voice'.assetPng,
                      height: 33.h,
                      width: 30.w)),
              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.selectItem == index;
            final answerCorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == true;
            final answerIncorrect = isAnswerOption &&
                bloc.checkAnswerRight(index) == false;
            return GestureDetector(
              onTap: () => bloc.add(SelectItemEvent(index)),
              child: ShakeWidget(
                shouldShake: answerIncorrect,
                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) =>
      BlocBuilder<TopicPictureBloc, TopicPictureState>(
          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: [
                GestureDetector(
                  onTap: () {
                    if (bloc.isVoicing) {
                      showToast('正在录音,不能终止');
                      return;
                    }
                    bloc.add(VoicePlayEvent());
                  },
                  child: Row(
                    children: [
                      SpeakerWidget(
                        isPlaying: bloc.voicePlayState == VoicePlayState.playing, // 控制动画播放
                        isClickable: true, // 控制是否可点击
                        width: 45.w,
                        height: 45.w,
                        onTap: () {
                          Log.d("Speaker tapped");
                        },
                      ),
                      10.horizontalSpace,
                      Text(topics?.word ?? '')
                    ],
                  ),
                ),
                70.verticalSpace,
                ThrottledGestureDetector(
                  throttleTime: 1000,
                  onTap: () {
                    if (bloc.voicePlayState == VoicePlayState.playing) {
                      showToast('正在播放音频,不能终止');
                      return;
                    }
                    if (bloc.isVoicing) {
                      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()));
                    }
                  },
                  child: Image.asset(
                    bloc.isVoicing
                        ? 'micro_phone'.assetGif
                        : 'micro_phone'.assetPng,
                    height: 46.h,
                    width: 46.w,
                  ),
                )
              ],
            )
          ],
        );
      });
  Color getResultColor(bool correct) {
    if (correct) {
      return const Color(0xFF19D717);
    } else {
      return const Color(0xFFFF463C);
    }
  }
}