import 'dart:convert';
import 'dart:io';

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_colorpicker/flutter_colorpicker.dart';
import 'package:mnemo_cards/admin/admin_api.dart';
import 'package:mnemo_cards/di/injector.dart';
import 'package:mnemo_cards/managers/repository/api.dart';
import 'package:mnemo_cards/managers/repository/dio_provider.dart';
import 'package:mnemo_cards/utils/iterable_helper.dart';
import 'package:mnemo_cards/utils/string_helper.dart';
import 'package:mnemo_cards/widgets/header.dart';
import 'package:mnemo_cards_common/mnemo_cards_common.dart';
import 'package:file_picker/file_picker.dart';

import '../main.dart';
import '../widgets/image_fade.dart';

class AddPackage with Api {
  EditCardPackDto cardPackDto;
  AdminApi adminApi;
  bool palleteVisible = false;

  AddPackage(EditCardPackDto? cardPackDto, this.adminApi)
      : cardPackDto = cardPackDto ?? EditCardPackDto.fromJson({});

  void _deletePack() async {
    final delete = await showDialog(
        context: scaffoldKey.currentContext!,
        builder: (c) => Center(
              child: Container(
                color: Colors.white,
                width: 200,
                child: IconButton(
                  icon: Row(
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: [
                      Text('Удалить '),
                      Icon(Icons.delete),
                    ],
                  ),
                  onPressed: () {
                    Navigator.of(c).pop(true);
                  },
                ),
              ),
            ));
    if (!delete) return;
    final result = await adminApi.deletePack(cardPackDto);
    if (!result) {
      ScaffoldMessenger.of(scaffoldKey.currentContext!).showSnackBar(SnackBar(
        content: Text('ERROR'),
      ));
    } else {
      ScaffoldMessenger.of(scaffoldKey.currentContext!).showSnackBar(SnackBar(
        content: Text('Success!!!'),
      ));
      appRouter.maybePop();
    }
  }

  void _savePack() async {
    final result = await adminApi.editPack(cardPackDto);
    if (!result) {
      ScaffoldMessenger.of(scaffoldKey.currentContext!).showSnackBar(SnackBar(
        content: Text('ERROR'),
      ));
    } else {
      ScaffoldMessenger.of(scaffoldKey.currentContext!).showSnackBar(SnackBar(
        content: Text('Success!!!'),
      ));
      appRouter.maybePop();
    }
  }

  void addPack(BuildContext context) {
    showDialog(
        context: context,
        builder: (c) {
          return Center(
            child: Card(
              child: Padding(
                padding: const EdgeInsets.all(8.0),
                child: ListView(
                  children: [
                    Header(
                      '${cardPackDto.id}',
                      hasPopButton: true,
                      trail: Row(
                        children: [
                          IconButton(
                            onPressed: _savePack,
                            icon: Icon(Icons.save),
                          ),
                          if (cardPackDto.id != null)
                            GestureDetector(
                              onLongPress: _deletePack,
                              child: Icon(Icons.delete),
                            )
                        ],
                      ),
                    ),
                    _TextParam(
                      'Title',
                      cardPackDto.title,
                      (v) {
                        cardPackDto = cardPackDto.copyWith.title(v);
                      },
                    ),
                    _TextParam(
                      'Subtitle',
                      cardPackDto.subtitle,
                      (v) {
                        cardPackDto = cardPackDto.copyWith.subtitle(v);
                      },
                    ),
                    _TextParam(
                      'Description',
                      cardPackDto.description,
                      (v) => cardPackDto = cardPackDto.copyWith.description(v),
                    ),
                    _TextParam(
                      'Size',
                      cardPackDto.size?.toString(),
                      (v) {
                        cardPackDto = cardPackDto.copyWith.size(
                          int.tryParse(v),
                        );
                      },
                    ),
                    _TextParam(
                      'Google play id',
                      cardPackDto.googlePlayId,
                      (v) {
                        cardPackDto = cardPackDto.copyWith.googlePlayId(v);
                      },
                    ),
                    _TextParam(
                      'Appstore id',
                      cardPackDto.appStoreId,
                      (v) {
                        cardPackDto = cardPackDto.copyWith.appStoreId(v);
                      },
                    ),
                    _TextParam(
                      'Price',
                      cardPackDto.price,
                      (v) {
                        cardPackDto = cardPackDto.copyWith.price(v);
                      },
                    ),
                    Row(
                      children: [
                        Expanded(child: Text('Enabled ')),
                        StatefulBuilder(builder: (context, setState) {
                          return Switch(
                              value: cardPackDto.enabled ?? false,
                              onChanged: (v) {
                                setState(() {
                                  cardPackDto = cardPackDto.copyWith.enabled(v);
                                });
                              });
                        }),
                      ],
                    ),
                    StatefulBuilder(builder: (context, setState) {
                      return Column(
                        children: [
                          Row(
                            children: [
                              Expanded(child: Text('Поменять цвет ')),
                              Switch(
                                value: palleteVisible,
                                onChanged: (v) => setState(() {
                                  palleteVisible = !palleteVisible;
                                }),
                              ),
                            ],
                          ),
                          if (palleteVisible)
                            ColorPicker(
                              pickerAreaHeightPercent: 0.5,
                              paletteType: PaletteType.hsvWithHue,
                              pickerColor: cardPackDto.color?.asColor ??
                                  Colors.transparent,
                              onColorChanged: (color) {
                                String? colorString;
                                if (color.alpha != 0) {
                                  colorString = '#${color.toHexString()}';
                                }
                                cardPackDto =
                                    cardPackDto.copyWith.color(colorString);
                              },
                            ),
                        ],
                      );
                    }),
                    StatefulBuilder(builder: (context, setState) {
                      return SizedBox(
                        width: MediaQuery.of(context).size.width - 20,
                        height: MediaQuery.of(context).size.width - 20,
                        child: GestureDetector(
                          onTap: () async {
                            FilePickerResult? result =
                                await FilePicker.platform.pickFiles();
                            if (result != null && result.files.isNotEmpty) {
                              final file = result.files.first;
                              final encoded = base64.normalize(
                                base64.encode(
                                  File(file.path!).readAsBytesSync(),
                                ),
                              );
                              cardPackDto = cardPackDto.copyWith.cover(
                                encoded,
                              );
                            }
                            setState(() {});
                          },
                          child: cardPackDto.cover == null
                              ? Container(
                                  alignment: Alignment.center,
                                  color: Colors.white,
                                  child: Icon(
                                    Icons.image,
                                    color: Colors.grey,
                                  ),
                                )
                              : Stack(
                                  children: [
                                    ImageFade(
                                      key: ValueKey(cardPackDto.id),
                                      image: MemoryImage(
                                          base64.decode(cardPackDto.cover!)),
                                      fit: BoxFit.contain,
                                      syncDuration: Duration.zero,
                                    ),
                                    Positioned(
                                      top: 8.0,
                                      right: 8.0,
                                      child: IconButton(
                                          onPressed: () {
                                            cardPackDto = cardPackDto.copyWith(
                                              cover: null,
                                            );
                                            setState(() {});
                                          },
                                          icon: Icon(Icons.delete)),
                                    ),
                                  ],
                                ),
                        ),
                      );
                    }),
                    _TextParam(
                      'Preview cards',
                      cardPackDto.previewCards?.toString(),
                      (v) {
                        final cards = (jsonDecode(v) as List).cast<String>();
                        cardPackDto = cardPackDto.copyWith.previewCards(cards);
                      },
                    ),
                    _TextParam(
                      'Order (lower is higher)',
                      cardPackDto.order?.toString(),
                      (v) {
                        cardPackDto = cardPackDto.copyWith.order(
                          int.tryParse(v),
                        );
                      },
                    ),
                    _TextParam(
                      'Cards order (ids)',
                      cardPackDto.cardsOrder?.join(','),
                      (v) {
                        final ids = v
                            .split(',')
                            .map((s) => int.tryParse(s.trim()))
                            .whereNotNull()
                            .toList();
                        cardPackDto = cardPackDto.copyWith(cardsOrder: ids);
                      },
                    ),
                  ],
                ),
              ),
            ),
          );
        });
  }
}

class _TextParam extends StatelessWidget {
  final String title;
  final String? initial;
  final Function(String v) onChanged;

  _TextParam(this.title, this.initial, this.onChanged);

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(8.0),
      child: Row(
        children: [
          Text(title),
          Expanded(
            child: TextField(
              controller: TextEditingController(text: initial),
              onChanged: onChanged,
            ),
          ),
        ],
      ),
    );
  }
}