import 'dart:async';
import 'dart:developer';

import 'package:fluffychat/pangea/choreographer/controllers/choreographer.dart';
import 'package:fluffychat/pangea/choreographer/controllers/it_controller.dart';
import 'package:fluffychat/pangea/choreographer/widgets/it_bar_buttons.dart';
import 'package:fluffychat/pangea/choreographer/widgets/it_feedback_card.dart';
import 'package:fluffychat/pangea/choreographer/widgets/translation_finished_flow.dart';
import 'package:fluffychat/pangea/constants/choreo_constants.dart';
import 'package:fluffychat/pangea/enum/instructions_enum.dart';
import 'package:fluffychat/pangea/utils/error_handler.dart';
import 'package:fluffychat/pangea/utils/inline_tooltip.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

import '../../../config/app_config.dart';
import '../../controllers/it_feedback_controller.dart';
import '../../models/it_response_model.dart';
import '../../utils/overlay.dart';
import '../../widgets/igc/word_data_card.dart';
import 'choice_array.dart';

class ITBar extends StatefulWidget {
  final Choreographer choreographer;
  const ITBar({super.key, required this.choreographer});

  @override
  ITBarState createState() => ITBarState();
}

class ITBarState extends State<ITBar> {
  ITController get itController => widget.choreographer.itController;
  StreamSubscription? _choreoSub;

  @override
  void initState() {
    // Rebuild the widget each time there's an update from choreo.
    _choreoSub = widget.choreographer.stateListener.stream.listen((_) {
      setState(() {});
    });
    super.initState();
  }

  @override
  void dispose() {
    _choreoSub?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return AnimatedSize(
      duration: itController.willOpen
          ? const Duration(milliseconds: 2000)
          : const Duration(milliseconds: 500),
      curve: Curves.fastOutSlowIn,
      clipBehavior: Clip.none,
      child: !itController.willOpen
          ? const SizedBox()
          : CompositedTransformTarget(
              link: widget.choreographer.itBarLinkAndKey.link,
              child: AnimatedOpacity(
                duration: itController.willOpen
                    ? const Duration(milliseconds: 2000)
                    : const Duration(milliseconds: 500),
                opacity: itController.willOpen ? 1.0 : 0.0,
                child: Container(
                  key: widget.choreographer.itBarLinkAndKey.key,
                  decoration: BoxDecoration(
                    color: Theme.of(context).brightness == Brightness.light
                        ? Colors.white
                        : Colors.black,
                    borderRadius: const BorderRadius.only(
                      topLeft: Radius.circular(AppConfig.borderRadius),
                      topRight: Radius.circular(AppConfig.borderRadius),
                    ),
                  ),
                  width: double.infinity,
                  padding: const EdgeInsets.fromLTRB(0, 3, 3, 3),
                  child: Stack(
                    children: [
                      SingleChildScrollView(
                        child: Column(
                          children: [
                            // Row(
                            //   mainAxisAlignment: MainAxisAlignment.spaceBetween,
                            //   crossAxisAlignment: CrossAxisAlignment.start,
                            //   children: [
                            //     // Row(
                            //     //   mainAxisAlignment: MainAxisAlignment.start,
                            //     //   crossAxisAlignment: CrossAxisAlignment.start,
                            //     //   children: [
                            //     //     CounterDisplay(
                            //     //       correct: controller.correctChoices,
                            //     //       custom: controller.customChoices,
                            //     //       incorrect: controller.incorrectChoices,
                            //     //       yellow: controller.wildcardChoices,
                            //     //     ),
                            //     //     CompositedTransformTarget(
                            //     //       link: choreographer.itBotLayerLinkAndKey.link,
                            //     //       child: ITBotButton(
                            //     //         key: choreographer.itBotLayerLinkAndKey.key,
                            //     //         choreographer: choreographer,
                            //     //       ),
                            //     //     ),
                            //     //   ],
                            //     // ),
                            //     ITCloseButton(choreographer: choreographer),
                            //   ],
                            // ),
                            // const SizedBox(height: 40.0),
                            OriginalText(controller: itController),
                            const SizedBox(height: 7.0),
                            IntrinsicHeight(
                              child: Container(
                                constraints:
                                    const BoxConstraints(minHeight: 80),
                                width: double.infinity,
                                padding:
                                    const EdgeInsets.symmetric(horizontal: 4.0),
                                child: Center(
                                  child: itController
                                          .choreographer.errorService.isError
                                      ? ITError(
                                          error: itController.choreographer
                                              .errorService.error!,
                                          controller: itController,
                                        )
                                      : itController.showChoiceFeedback
                                          ? ChoiceFeedbackText(
                                              controller: itController,
                                            )
                                          : itController.isTranslationDone
                                              ? TranslationFeedback(
                                                  controller: itController,
                                                )
                                              : ITChoices(
                                                  controller: itController,
                                                ),
                                ),
                              ),
                            ),
                            if (!widget
                                .choreographer.pangeaController.instructions
                                .wereInstructionsTurnedOff(
                              InlineInstructions.translationChoices.toString(),
                            ))
                              Container(
                                constraints: const BoxConstraints(
                                  maxWidth: 180,
                                ),
                                child: InlineTooltip(
                                  body: InlineInstructions.translationChoices
                                      .body(context),
                                  onClose: itController.closeHint,
                                ),
                              ),
                            const SizedBox(
                              height: 10,
                            ),
                          ],
                        ),
                      ),
                      Positioned(
                        top: 0.0,
                        right: 0.0,
                        child:
                            ITCloseButton(choreographer: widget.choreographer),
                      ),
                    ],
                  ),
                ),
              ),
            ),
    );
  }
}

class ChoiceFeedbackText extends StatelessWidget {
  const ChoiceFeedbackText({
    super.key,
    required this.controller,
  });

  final ITController controller;

  @override
  Widget build(BuildContext context) {
    //reimplement if we decide we want it
    return const SizedBox();
    // return AnimatedTextKit(
    //   isRepeatingAnimation: false,
    //   animatedTexts: [
    //     ScaleAnimatedText(
    //       controller.latestChoiceFeedback(context),
    //       duration: Duration(
    //         milliseconds:
    //             (ChoreoConstants.millisecondsToDisplayFeedback / 2).round(),
    //       ),
    //       scalingFactor: 1.4,
    //       textStyle: BotStyle.text(context),
    //     ),
    //   ],
    // );
  }
}

class OriginalText extends StatelessWidget {
  const OriginalText({
    super.key,
    required this.controller,
  });

  final ITController controller;

  @override
  Widget build(BuildContext context) {
    return Container(
      constraints: const BoxConstraints(minHeight: 50),
      padding: const EdgeInsets.only(left: 60.0, right: 40.0),
      decoration: const BoxDecoration(
        borderRadius: BorderRadius.only(
          topLeft: Radius.circular(AppConfig.borderRadius),
          topRight: Radius.circular(AppConfig.borderRadius),
        ),
      ),
      child: Row(
        //PTODO - does this already update after reset or we need to setState?
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          if (!controller.isEditingSourceText)
            controller.sourceText != null
                ? Flexible(child: Text(controller.sourceText!))
                : const LinearProgressIndicator(),
          if (controller.isEditingSourceText)
            Expanded(
              child: TextField(
                controller: TextEditingController(text: controller.sourceText),
                autofocus: true,
                enableSuggestions: false,
                maxLines: null,
                textInputAction: TextInputAction.send,
                onSubmitted: controller.onEditSourceTextSubmit,
                obscureText: false,
                decoration: const InputDecoration(
                  border: OutlineInputBorder(),
                ),
              ),
            ),
          if (!controller.isEditingSourceText && controller.sourceText != null)
            AnimatedOpacity(
              duration: const Duration(milliseconds: 500),
              opacity: controller.nextITStep != null ? 1.0 : 0.0,
              child: IconButton(
                onPressed: () => {
                  if (controller.nextITStep != null)
                    {
                      controller.setIsEditingSourceText(true),
                    },
                },
                icon: const Icon(Icons.edit_outlined),
              ),
            ),
        ],
      ),
    );
  }
}

class ITChoices extends StatelessWidget {
  const ITChoices({
    super.key,
    required this.controller,
  });

  // final choices = [
  //   "we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.",
  //   "we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.",
  //   "we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.",
  //   "we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.",
  //   "we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.",
  //   "we need a really long translation to see what's going to happen with that. it should probably have multiple sentences so that we can see what happens there.",
  // ];

  final ITController controller;

  String? get sourceText {
    if ((controller.sourceText == null || controller.sourceText!.isEmpty)) {
      ErrorHandler.logError(m: "null source text in ItChoices");
    }
    return controller.sourceText;
  }

  void showCard(
    BuildContext context,
    int index, [
    Color? borderColor,
    String? choiceFeedback,
  ]) {
    if (controller.currentITStep == null) {
      ErrorHandler.logError(
        m: "currentITStep is null in showCard",
        s: StackTrace.current,
      );
      return;
    }
    OverlayUtil.showPositionedCard(
      context: context,
      cardToShow: choiceFeedback == null
          ? WordDataCard(
              word: controller.currentITStep!.continuances[index].text,
              wordLang: controller.targetLangCode,
              fullText: sourceText ?? controller.choreographer.currentText,
              fullTextLang: sourceText != null
                  ? controller.sourceLangCode
                  : controller.targetLangCode,
              hasInfo: controller.currentITStep!.continuances[index].hasInfo,
              choiceFeedback: choiceFeedback,
              room: controller.choreographer.chatController.room,
            )
          : ITFeedbackCard(
              req: ITFeedbackRequestModel(
                sourceText: sourceText!,
                currentText: controller.choreographer.currentText,
                chosenContinuance:
                    controller.currentITStep!.continuances[index].text,
                bestContinuance: controller.currentITStep!.best.text,
                // TODO: we want this to eventually switch between target and source lang,
                // based on the learner's proficiency - maybe with the words involved in the translation
                // maybe overall. For now, we'll just use the source lang.
                feedbackLang: controller.choreographer.l1Lang?.langCode ??
                    controller.sourceLangCode,
                sourceTextLang: controller.sourceLangCode,
                targetLang: controller.targetLangCode,
              ),
              choiceFeedback: choiceFeedback,
            ),
      cardSize: const Size(300, 300),
      borderColor: borderColor,
      transformTargetId: controller.choreographer.itBarTransformTargetKey,
      backDropToDismiss: false,
    );
  }

  @override
  Widget build(BuildContext context) {
    try {
      if (controller.isEditingSourceText || controller.currentITStep == null) {
        return const SizedBox();
      }
      return ChoicesArray(
        isLoading: controller.isLoading ||
            controller.choreographer.isFetching ||
            controller.currentITStep == null,
        //TODO - pass current span being translated
        originalSpan: "dummy",
        choices: controller.currentITStep!.continuances.map((e) {
          try {
            return Choice(
              text: e.text.trim(),
              color: e.color,
              isGold: e.description == "best",
            );
          } catch (e) {
            debugger(when: kDebugMode);
            return Choice(text: "error", color: Colors.red);
          }
        }).toList(),
        onPressed: (int index) {
          final Continuance continuance =
              controller.currentITStep!.continuances[index];
          debugPrint("is gold? ${continuance.gold}");
          if (continuance.level == 1 || continuance.wasClicked) {
            Future.delayed(
              const Duration(milliseconds: 500),
              () => controller.selectTranslation(index),
            );
          } else {
            showCard(
              context,
              index,
              continuance.level == 2
                  ? ChoreoConstants.yellow
                  : ChoreoConstants.red,
              continuance.feedbackText(context),
            );
          }
          controller.currentITStep!.continuances[index].wasClicked = true;
          controller.choreographer.setState();
        },
        onLongPress: (int index) {
          showCard(context, index);
        },
        uniqueKeyForLayerLink: (int index) => "itChoices$index",
        selectedChoiceIndex: null,
      );
    } catch (e) {
      debugger(when: kDebugMode);
      return const SizedBox();
    }
  }
}

class ITError extends StatelessWidget {
  final ITController controller;
  final Object error;
  const ITError({super.key, required this.error, required this.controller});

  @override
  Widget build(BuildContext context) {
    final ErrorCopy errorCopy = ErrorCopy(context, error);
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 8),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          ConstrainedBox(
            constraints: const BoxConstraints(maxWidth: 300),
            child: Text(
              // Text(
              "${errorCopy.title}\n${errorCopy.body}",
              // Haga clic en su mensaje para ver los significados de las palabras.
              style: TextStyle(
                fontStyle: FontStyle.italic,
                color: Theme.of(context).colorScheme.error,
              ),
            ),
          ),
          ITRestartButton(controller: controller),
        ],
      ),
    );
  }
}