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

import 'package:flutter/material.dart';

import 'package:file_picker/file_picker.dart';
import 'package:mnemo_cards/admin/admin_api.dart';
import 'package:mnemo_cards_common/mnemo_cards_common.dart';
import 'package:mnemo_cards_frontend_common/mnemo_cards_frontend_common.dart';

import '../main.dart';

class EditCard {
  GameCardDto gameCardDto;
  AdminApi adminApi;
  bool imageChanged = false;

  EditCard(GameCardDto? cardDto, this.adminApi)
      : gameCardDto = cardDto ??
            const GameCardDto(
              id: -1,
              image: null,
              mnemo: null,
              original: null,
              translation: null,
              transcription: null,
              transcriptionMnemo: null,
              imageBack: null,
              back: null,
            );

  void _saveCard() async {
    final dto = imageChanged ? gameCardDto : gameCardDto.copyWith.image(null);
    final result = await adminApi.addCard(dto);
    if (!result) {
      ScaffoldMessenger.of(scaffoldKey.currentContext!).showSnackBar(SnackBar(
        content: Text('ERROR'),
      ));
    } else {
      ScaffoldMessenger.of(scaffoldKey.currentContext!).showSnackBar(SnackBar(
        content: Text('Success!!!'),
      ));
      appRouter.maybePop();
    }
  }

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

  void addCard(BuildContext context) {
    final theme = Theme.of(context).textTheme;

    final TextEditingController originalController =
        TextEditingController(text: gameCardDto.original);
    final TextEditingController translationController =
        TextEditingController(text: gameCardDto.translation);
    final TextEditingController transcriptionController =
        TextEditingController(text: gameCardDto.transcription);
    final TextEditingController transcriptionMnemoController =
        TextEditingController(text: gameCardDto.transcriptionMnemo);
    final TextEditingController mnemoController =
        TextEditingController(text: gameCardDto.mnemo);
    final TextEditingController backController =
        TextEditingController(text: gameCardDto.back);

    showDialog(
        context: context,
        builder: (c) {
          return Center(
            child: Scaffold(
              body: Material(
                child: ListView(
                  children: [
                    Header(
                      '${gameCardDto.id}',
                      hasPopButton: true,
                      trail: Row(
                        children: [
                          IconButton(
                            onPressed: _saveCard,
                            icon: Icon(Icons.save),
                          ),
                          if (gameCardDto.id >= 0)
                            GestureDetector(
                              onLongPress: _deleteCard,
                              child: Icon(Icons.delete),
                            )
                        ],
                      ),
                    ),
                    StatefulBuilder(builder: (context, setState) {
                      return Stack(
                        alignment: Alignment.center,
                        children: [
                          Padding(
                            padding: EdgeInsets.all(8.0),
                            child: Column(
                              mainAxisSize: MainAxisSize.max,
                              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                              children: [
                                Column(
                                  children: [
                                    TextField(
                                      controller: originalController,
                                      onChanged: (v) {
                                        gameCardDto =
                                            gameCardDto.copyWith(original: v);
                                      },
                                      decoration: InputDecoration(
                                          hintText: 'Original (cerdo)'),
                                      maxLines: 1,
                                      style: theme.displayMedium?.copyWith(
                                        fontSize:
                                            theme.displayMedium!.fontSize!,
                                      ),
                                    ),
                                    TextField(
                                      controller: translationController,
                                      onChanged: (v) {
                                        gameCardDto = gameCardDto.copyWith(
                                            translation: v);
                                      },
                                      decoration: InputDecoration(
                                          hintText: 'Translation (свинья)'),
                                      maxLines: 1,
                                      style: theme.headlineSmall?.copyWith(
                                        color: theme.headlineSmall!.color!
                                            .withOpacity(0.5),
                                        fontSize:
                                            theme.headlineSmall!.fontSize!,
                                      ),
                                    ),
                                    Row(
                                      children: [
                                        Flexible(
                                          child: TextField(
                                            controller: transcriptionController,
                                            onChanged: (v) {
                                              gameCardDto = gameCardDto
                                                  .copyWith(transcription: v);
                                            },
                                            decoration: InputDecoration(
                                                hintText: 'Transcription'),
                                            maxLines: 1,
                                            style:
                                                theme.headlineSmall?.copyWith(
                                              color:
                                                  theme.headlineSmall!.color!,
                                              fontSize: theme
                                                  .headlineSmall!.fontSize!,
                                            ),
                                          ),
                                        ),
                                        SizedBox(
                                          width: 4.0,
                                        ),
                                        Flexible(
                                          child: TextField(
                                            controller:
                                                transcriptionMnemoController,
                                            onChanged: (v) {
                                              gameCardDto =
                                                  gameCardDto.copyWith(
                                                      transcriptionMnemo: v);
                                            },
                                            decoration: InputDecoration(
                                                hintText:
                                                    'Transcription mnemo'),
                                            maxLines: 1,
                                            style:
                                                theme.headlineSmall?.copyWith(
                                              color:
                                                  theme.headlineSmall!.color!,
                                              fontSize: theme
                                                  .headlineSmall!.fontSize!,
                                            ),
                                          ),
                                        ),
                                      ],
                                    ),
                                  ],
                                ),
                                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) {
                                        imageChanged = true;
                                        final file = result.files.first;
                                        final encoded = base64.normalize(
                                          base64.encode(
                                            File(file.path!).readAsBytesSync(),
                                          ),
                                        );
                                        gameCardDto = gameCardDto.copyWith(
                                          image: encoded,
                                        );
                                      }
                                      setState(() {});
                                    },
                                    child: gameCardDto.image == null
                                        ? Container(
                                            alignment: Alignment.center,
                                            color: Colors.white,
                                            child: Icon(
                                              Icons.image,
                                              color: Colors.grey,
                                            ),
                                          )
                                        : Stack(
                                            children: [
                                              ImageFade(
                                                key: ValueKey(gameCardDto.id),
                                                image: MemoryImage(
                                                    base64.decode(
                                                        gameCardDto.image!)),
                                                fit: BoxFit.contain,
                                                syncDuration: Duration.zero,
                                              ),
                                              Positioned(
                                                top: 8.0,
                                                right: 8.0,
                                                child: IconButton(
                                                    onPressed: () {
                                                      gameCardDto =
                                                          gameCardDto.copyWith(
                                                        image: null,
                                                      );
                                                      setState(() {});
                                                    },
                                                    icon: Icon(Icons.delete)),
                                              ),
                                            ],
                                          ),
                                  ),
                                ),
                                TextField(
                                  controller: mnemoController,
                                  onChanged: (v) {
                                    gameCardDto =
                                        gameCardDto.copyWith(mnemo: v);
                                  },
                                  decoration: InputDecoration(
                                    hintText: 'Mnemo ([свинья] с сердечком)',
                                  ),
                                  maxLines: 1,
                                  style: theme.headlineSmall?.copyWith(
                                    fontSize: theme.headlineSmall!.fontSize!,
                                  ),
                                ),
                                TextField(
                                  controller: backController,
                                  onChanged: (v) {
                                    gameCardDto = gameCardDto.copyWith(
                                      back: v,
                                    );
                                  },
                                  decoration: InputDecoration(
                                    hintText: 'Задняя сторона',
                                  ),
                                  maxLines: 1,
                                  style: theme.headlineSmall?.copyWith(
                                    fontSize: theme.headlineSmall!.fontSize!,
                                  ),
                                ),
                              ],
                            ),
                          ),
                        ],
                      );
                    }),
                  ],
                ),
              ),
            ),
          );
        });
  }
}