import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:vitalapp/architecture/utils/advance_debounce.dart';
import 'package:vitalapp/components/no_data_view.dart';
import 'package:vitalapp/database/entities/defines.dart';
import 'package:vitalapp/database/entities/patient.dart';
import '../controller.dart';

import '../state.dart';

enum _SyncCategoryEnum {
  patient,
  diagnosis,
  exam,
  gxyFollowUp,
  tnbFollowUp,
  tcmConsitution,
}

class _TableUtils {
  static Map<int, TableColumnWidth> columnWidths = {
    0: const FixedColumnWidth(100),
    1: const FixedColumnWidth(200),
    2: const FixedColumnWidth(250),
    3: const FixedColumnWidth(100),
    4: const FlexColumnWidth(),
    5: const FixedColumnWidth(100),
  };

  /// 行高
  static const double rowHeight = 48;

  /// 字号
  static const double textFontSize = 18;
}

class SyncDataTableHeader extends GetView<SyncCenterController> {
  const SyncDataTableHeader({super.key});

  @override
  Widget build(BuildContext context) {
    return Table(
      columnWidths: _TableUtils.columnWidths,
      children: [
        TableRow(
          decoration: BoxDecoration(
            color: Theme.of(context).primaryColor,
          ),
          children: const [
            SyncTableTextCell(text: "序号", isBlod: true),
            SyncTableTextCell(text: "姓名", isBlod: true),
            SyncTableTextCell(text: "身份证号", isBlod: true),
            SyncTableTextCell(text: "状态", isBlod: true),
            SyncTableTextCell(text: "待上传项目", isBlod: true),
            SyncTableTextCell(text: "操作", isBlod: true),
          ],
        ),
      ],
    );
  }
}

class SyncDataTableBody extends GetView<SyncCenterController> {
  const SyncDataTableBody({super.key});

  @override
  Widget build(BuildContext context) {
    final scrollController = ScrollController();
    scrollController.addListener(
      () {
        // 如果滑动到底部
        try {
          if (scrollController.position.atEdge) {
            if (scrollController.position.pixels != 0) {
              if (controller.state.hasNextPage) {
                controller.loadNextPageList();
              }
            }
          }
        } catch (e) {
          // logger.e("listViewScrollController exception:", e);
        }
      },
    );

    return RefreshIndicator(
      onRefresh: () async {
        await controller.reloadPageList();
      },
      child: Obx(() {
        final dataList = controller.state.dataList;
        if (dataList.isEmpty) {
          return const VNoDataView();
        }
        final List<TableRow> rows = [];
        for (var i = 0; i < dataList.length; i++) {
          final model = dataList[i];
          rows.add(_buildRow(context, i, model));
        }

        return SingleChildScrollView(
          controller: scrollController,
          child: Table(
            columnWidths: _TableUtils.columnWidths,
            children: rows,
          ),
        );
      }),
    );
  }

  TableRow _buildRow(
      BuildContext context, int index, SyncCenterDataModel model) {
    final no = (index + 1).toString();
    final data = model.data;
    return TableRow(
      key: PageStorageKey<String>(data.code),
      decoration: BoxDecoration(
        color: index % 2 == 0 ? null : Colors.blue.shade100,
      ),
      children: [
        SyncTableTextCell(text: no),
        SyncTableTextCell(text: data.name),
        SyncTableTextCell(text: data.code),
        SyncTableTextCell(text: data.overallSyncState.getDescription()),
        _buildTagsCell(data),
        _buildOperateCell(context, index, model),
      ],
    );
  }

  /// 操作栏
  Widget _buildOperateCell(
      BuildContext context, int index, SyncCenterDataModel model) {
    final widgets = <Widget>[];
    if (!model.isSynchronized) {
      widgets.add(
        TextButton.icon(
          onPressed: () {
            Debouncer.run(
              () {
                controller.uploadSingle(index);
              },
            );
          },
          icon: const Icon(
            Icons.cloud_upload_outlined,
            size: _TableUtils.textFontSize + 6,
          ),
          label: Text(
            "上传",
            style: TextStyle(
              color: Theme.of(context).primaryColor,
              fontSize: _TableUtils.textFontSize,
            ),
          ),
        ),
      );
    }
    return _SyncTableCell(
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: widgets,
      ),
    );
  }

  /// 标签栏
  Widget _buildTagsCell(PatientEntity data) {
    final List<Widget> tags = [];
    if (data.syncState != OfflineDataSyncState.success) {
      tags.add(const _SyncCategoryTag(category: _SyncCategoryEnum.patient));
    }
    if (data.examCount > 0) {
      tags.add(const _SyncCategoryTag(category: _SyncCategoryEnum.exam));
    }
    if (data.tcmConsitutionCount > 0) {
      tags.add(
          const _SyncCategoryTag(category: _SyncCategoryEnum.tcmConsitution));
    }
    if (data.gxyFollowUpCount > 0) {
      tags.add(const _SyncCategoryTag(category: _SyncCategoryEnum.gxyFollowUp));
    }
    if (data.tnbFollowUpCount > 0) {
      tags.add(const _SyncCategoryTag(category: _SyncCategoryEnum.tnbFollowUp));
    }
    if (data.diagnosisCount > 0) {
      tags.add(const _SyncCategoryTag(category: _SyncCategoryEnum.diagnosis));
    }

    return _SyncTableCell(
      child: Wrap(
        spacing: 4,
        runSpacing: 4,
        children: tags,
      ),
    );
  }
}

class SyncTableTextCell extends StatelessWidget {
  final String? text;
  final bool isBlod;
  final AlignmentGeometry? alignment;

  const SyncTableTextCell({
    super.key,
    this.text,
    this.isBlod = false,
    this.alignment,
  });

  @override
  Widget build(BuildContext context) {
    final child = Text(
      text ?? "",
      style: TextStyle(
        fontSize: _TableUtils.textFontSize,
        fontWeight: isBlod ? FontWeight.bold : FontWeight.normal,
      ),
    );
    return _SyncTableCell(
      alignment: alignment,
      child: child,
    );
  }
}

class _SyncTableCell extends StatelessWidget {
  final Widget? child;
  final AlignmentGeometry? alignment;

  const _SyncTableCell({this.alignment, this.child});

  @override
  Widget build(BuildContext context) {
    return TableCell(
      child: Container(
        alignment: alignment ?? Alignment.center,
        height: _TableUtils.rowHeight,
        child: child,
      ),
    );
  }
}

class _SyncCategoryTag extends StatelessWidget {
  static final Map<_SyncCategoryEnum, List> _configMap = {
    _SyncCategoryEnum.patient: ["档案", Colors.blue],
    _SyncCategoryEnum.diagnosis: ["检测", Colors.orange],
    _SyncCategoryEnum.exam: ["检查", Colors.green],
    _SyncCategoryEnum.gxyFollowUp: ["高血压随访", Colors.purple],
    _SyncCategoryEnum.tnbFollowUp: ["糖尿病随访", Colors.purple],
    _SyncCategoryEnum.tcmConsitution: ["中医体质", Colors.brown.shade400],
  };
  final _SyncCategoryEnum category;

  const _SyncCategoryTag({required this.category});
  @override
  Widget build(BuildContext context) {
    final configs = _configMap[category]!;
    final title = configs[0];
    final color = configs[1];
    return Container(
      padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 8),
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(4),
        color: color,
      ),
      child: Text(
        title,
        style: const TextStyle(color: Colors.white, fontSize: 14),
      ),
    );
  }
}