import 'package:PiliPlus/http/msg.dart';
import 'package:PiliPlus/pages/common/common_publish_page.dart';
import 'package:PiliPlus/pages/dynamics/view.dart';
import 'package:PiliPlus/pages/emote/controller.dart';
import 'package:PiliPlus/pages/emote/view.dart';
import 'package:PiliPlus/pages/video/detail/reply_new/toolbar_icon_button.dart';
import 'package:PiliPlus/utils/storage.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart';

class CreateDynPanel extends CommonPublishPage {
  const CreateDynPanel({
    super.key,
    super.imageLengthLimit = 18,
  });

  @override
  State<CreateDynPanel> createState() => _CreateDynPanelState();
}

class _CreateDynPanelState extends CommonPublishPageState<CreateDynPanel> {
  bool _isPrivate = false;
  DateTime? _publishTime;
  ReplyOption _replyOption = ReplyOption.allow;

  @override
  void dispose() {
    try {
      Get.delete<EmotePanelController>();
    } catch (_) {}
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.transparent,
      resizeToAvoidBottomInset: false,
      appBar: _buildAppBar,
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Expanded(
            child: Column(
              mainAxisSize: MainAxisSize.max,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Flexible(
                  child: Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 16),
                    child: _buildEditWidget,
                  ),
                ),
                const SizedBox(height: 16),
                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 16),
                  child: Row(
                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
                    children: [
                      _buildPubtimeWidget,
                      Column(
                        mainAxisSize: MainAxisSize.min,
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          _buildReplyOptionWidget,
                          const SizedBox(height: 5),
                          _buildPrivateWidget,
                        ],
                      ),
                    ],
                  ),
                ),
                const SizedBox(height: 10),
                _buildImageList,
                const SizedBox(height: 2),
              ],
            ),
          ),
          _buildToolbar,
          buildPanelContainer(Colors.transparent),
        ],
      ),
    );
  }

  Widget get _buildImageList => Obx(
        () => SizedBox(
          height: 100,
          child: ListView.separated(
            scrollDirection: Axis.horizontal,
            physics: const AlwaysScrollableScrollPhysics(
              parent: BouncingScrollPhysics(),
            ),
            padding: const EdgeInsets.symmetric(horizontal: 16),
            itemCount: pathList.length == limit ? limit : pathList.length + 1,
            itemBuilder: (context, index) {
              if (pathList.length != limit && index == pathList.length) {
                return Material(
                  borderRadius: BorderRadius.circular(12),
                  child: InkWell(
                    borderRadius: BorderRadius.circular(12),
                    onTap: () {
                      onPickImage(() {
                        if (pathList.isNotEmpty && !enablePublish.value) {
                          enablePublish.value = true;
                        }
                      });
                    },
                    child: Ink(
                      width: 100,
                      height: 100,
                      decoration: BoxDecoration(
                        borderRadius: BorderRadius.circular(12),
                        color: Theme.of(context).colorScheme.secondaryContainer,
                      ),
                      child: Center(child: Icon(Icons.add, size: 35)),
                    ),
                  ),
                );
              } else {
                return buildImage(index, 100);
              }
            },
            separatorBuilder: (context, index) => const SizedBox(width: 10),
          ),
        ),
      );

  PreferredSizeWidget get _buildAppBar => PreferredSize(
        preferredSize: Size.fromHeight(66),
        child: Padding(
          padding: const EdgeInsets.all(16),
          child: Stack(
            alignment: Alignment.center,
            children: [
              Align(
                alignment: Alignment.centerLeft,
                child: SizedBox(
                  width: 34,
                  height: 34,
                  child: IconButton(
                    tooltip: '返回',
                    style: ButtonStyle(
                      padding: WidgetStateProperty.all(EdgeInsets.zero),
                      backgroundColor: WidgetStateProperty.resolveWith(
                        (states) {
                          return Theme.of(context)
                              .colorScheme
                              .secondaryContainer;
                        },
                      ),
                    ),
                    onPressed: Get.back,
                    icon: Icon(
                      Icons.arrow_back_outlined,
                      size: 18,
                      color: Theme.of(context).colorScheme.onSecondaryContainer,
                    ),
                  ),
                ),
              ),
              Center(
                child: const Text(
                  '发布动态',
                  style: TextStyle(fontSize: 15, fontWeight: FontWeight.bold),
                ),
              ),
              Align(
                alignment: Alignment.centerRight,
                child: Obx(
                  () => FilledButton.tonal(
                    onPressed: enablePublish.value ? onPublish : null,
                    style: FilledButton.styleFrom(
                      tapTargetSize: MaterialTapTargetSize.shrinkWrap,
                      padding: const EdgeInsets.symmetric(
                        horizontal: 20,
                        vertical: 10,
                      ),
                      visualDensity: const VisualDensity(
                        horizontal: -2,
                        vertical: -2,
                      ),
                    ),
                    child: Text(_publishTime == null ? '发布' : '定时发布'),
                  ),
                ),
              ),
            ],
          ),
        ),
      );

  Widget get _buildPrivateWidget => PopupMenuButton(
        initialValue: _isPrivate,
        onOpened: controller.keepChatPanel,
        onSelected: (value) {
          setState(() {
            _isPrivate = value;
          });
        },
        itemBuilder: (context) => List.generate(
          2,
          (index) => PopupMenuItem<bool>(
            enabled: _publishTime != null && index == 1 ? false : true,
            value: index == 0 ? false : true,
            child: Row(
              mainAxisSize: MainAxisSize.min,
              children: [
                Icon(
                  size: 19,
                  index == 0 ? Icons.visibility : Icons.visibility_off,
                ),
                const SizedBox(width: 4),
                Text(index == 0 ? '所有人可见' : '仅自己可见'),
              ],
            ),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.symmetric(vertical: 2),
          child: Row(
            mainAxisSize: MainAxisSize.min,
            children: [
              Icon(
                size: 19,
                _isPrivate ? Icons.visibility_off : Icons.visibility,
                color: _isPrivate
                    ? Theme.of(context).colorScheme.error
                    : Theme.of(context).colorScheme.secondary,
              ),
              const SizedBox(width: 4),
              Text(
                _isPrivate ? '仅自己可见' : '所有人可见',
                style: TextStyle(
                  height: 1,
                  color: _isPrivate
                      ? Theme.of(context).colorScheme.error
                      : Theme.of(context).colorScheme.secondary,
                ),
                strutStyle: StrutStyle(leading: 0, height: 1),
              ),
              Icon(
                size: 20,
                Icons.keyboard_arrow_right,
                color: _isPrivate
                    ? Theme.of(context).colorScheme.error
                    : Theme.of(context).colorScheme.secondary,
              ),
            ],
          ),
        ),
      );

  Widget get _buildReplyOptionWidget => PopupMenuButton(
        initialValue: _replyOption,
        onOpened: controller.keepChatPanel,
        onSelected: (item) {
          setState(() {
            _replyOption = item;
          });
        },
        itemBuilder: (context) => ReplyOption.values
            .map(
              (item) => PopupMenuItem<ReplyOption>(
                value: item,
                child: Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Icon(
                      size: 19,
                      item.iconData,
                    ),
                    const SizedBox(width: 4),
                    Text(item.title),
                  ],
                ),
              ),
            )
            .toList(),
        child: Padding(
          padding: const EdgeInsets.symmetric(vertical: 2),
          child: Row(
            mainAxisSize: MainAxisSize.min,
            children: [
              Icon(
                size: 19,
                _replyOption.iconData,
                color: _replyOption == ReplyOption.close
                    ? Theme.of(context).colorScheme.error
                    : Theme.of(context).colorScheme.secondary,
              ),
              const SizedBox(width: 4),
              Text(
                _replyOption.title,
                style: TextStyle(
                  height: 1,
                  color: _replyOption == ReplyOption.close
                      ? Theme.of(context).colorScheme.error
                      : Theme.of(context).colorScheme.secondary,
                ),
                strutStyle: StrutStyle(leading: 0, height: 1),
              ),
              Icon(
                size: 20,
                Icons.keyboard_arrow_right,
                color: _replyOption == ReplyOption.close
                    ? Theme.of(context).colorScheme.error
                    : Theme.of(context).colorScheme.secondary,
              ),
            ],
          ),
        ),
      );

  Widget get _buildPubtimeWidget => _publishTime == null
      ? FilledButton.tonal(
          style: FilledButton.styleFrom(
            padding: const EdgeInsets.symmetric(
              horizontal: 16,
              vertical: 10,
            ),
            visualDensity: const VisualDensity(
              horizontal: -2,
              vertical: -2,
            ),
          ),
          onPressed: _isPrivate
              ? null
              : () {
                  DateTime nowDate = DateTime.now();
                  showDatePicker(
                    context: context,
                    initialDate: nowDate,
                    firstDate: nowDate,
                    lastDate: DateTime(
                      nowDate.year,
                      nowDate.month,
                      nowDate.day + 7,
                    ),
                  ).then(
                    (selectedDate) {
                      if (selectedDate != null && mounted) {
                        TimeOfDay nowTime = TimeOfDay.now();
                        showTimePicker(
                          context: context,
                          initialTime: nowTime.replacing(
                            hour: nowTime.minute + 6 >= 60
                                ? (nowTime.hour + 1) % 24
                                : nowTime.hour,
                            minute: (nowTime.minute + 6) % 60,
                          ),
                        ).then((selectedTime) {
                          if (selectedTime != null) {
                            if (selectedDate.day == nowDate.day) {
                              if (selectedTime.hour < nowTime.hour) {
                                SmartDialog.showToast('时间设置错误，至少选择6分钟之后');
                                return;
                              } else if (selectedTime.hour == nowTime.hour) {
                                if (selectedTime.minute < nowTime.minute + 6) {
                                  if (selectedDate.day == nowDate.day) {
                                    SmartDialog.showToast('时间设置错误，至少选择6分钟之后');
                                  }
                                  return;
                                }
                              }
                            }
                            setState(() {
                              _publishTime = DateTime(
                                selectedDate.year,
                                selectedDate.month,
                                selectedDate.day,
                                selectedTime.hour,
                                selectedTime.minute,
                              );
                            });
                          }
                        });
                      }
                    },
                  );
                },
          child: const Text('定时发布'),
        )
      : OutlinedButton.icon(
          style: OutlinedButton.styleFrom(
            padding: const EdgeInsets.symmetric(
              horizontal: 16,
              vertical: 10,
            ),
            visualDensity: const VisualDensity(
              horizontal: -2,
              vertical: -2,
            ),
          ),
          onPressed: () {
            setState(() {
              _publishTime = null;
            });
          },
          label: Text(DateFormat('yyyy-MM-dd HH:mm').format(_publishTime!)),
          icon: Icon(Icons.clear, size: 20),
          iconAlignment: IconAlignment.end,
        );

  Widget get _buildToolbar => Padding(
        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        child: Row(
          children: [
            Obx(
              () => ToolbarIconButton(
                onPressed: () {
                  selectKeyboard.value = PanelType.emoji == currentPanelType;
                  updatePanelType(
                    PanelType.emoji == currentPanelType
                        ? PanelType.keyboard
                        : PanelType.emoji,
                  );
                },
                icon: const Icon(Icons.emoji_emotions, size: 22),
                tooltip: '表情',
                selected: !selectKeyboard.value,
              ),
            ),
          ],
        ),
      );

  Widget get _buildEditWidget => Form(
        autovalidateMode: AutovalidateMode.onUserInteraction,
        child: Listener(
          onPointerUp: (event) {
            if (readOnly.value) {
              updatePanelType(PanelType.keyboard);
              selectKeyboard.value = true;
            }
          },
          child: Obx(
            () => TextField(
              controller: editController,
              minLines: 4,
              maxLines: null,
              focusNode: focusNode,
              readOnly: readOnly.value,
              onChanged: (value) {
                bool isEmpty = value.trim().isEmpty && pathList.isEmpty;
                if (!isEmpty && !enablePublish.value) {
                  enablePublish.value = true;
                } else if (isEmpty && enablePublish.value) {
                  enablePublish.value = false;
                }
              },
              decoration: const InputDecoration(
                hintText: '说点什么吧',
                border: OutlineInputBorder(
                  borderSide: BorderSide.none,
                  gapPadding: 0,
                ),
                contentPadding: EdgeInsets.zero,
              ),
            ),
          ),
        ),
      );

  @override
  Widget? customPanel(double height) => SizedBox(
        height: height,
        child: EmotePanel(onChoose: onChooseEmote),
      );

  @override
  Future onCustomPublish({required String message, List? pictures}) async {
    SmartDialog.showLoading(msg: '正在发布');
    dynamic result = await MsgHttp.createDynamic(
      mid: GStorage.userInfo.get('userInfoCache')?.mid,
      rawText: editController.text,
      pics: pictures,
      publishTime: _publishTime != null
          ? _publishTime!.millisecondsSinceEpoch ~/ 1000
          : null,
      replyOption: _replyOption,
      privatePub: _isPrivate ? 1 : null,
    );
    if (result['status']) {
      Get.back();
      SmartDialog.dismiss();
      SmartDialog.showToast('发布成功');
    } else {
      SmartDialog.dismiss();
      SmartDialog.showToast(result['msg']);
      debugPrint('failed to publish: ${result['msg']}');
    }
  }
}