import 'dart:developer';

import 'package:dio/dio.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_platform_alert/flutter_platform_alert.dart';
import 'package:gap/gap.dart';
import 'package:styled_widget/styled_widget.dart';

// TODO support web here

String _parseRemoteError(DioException err) {
  log('${err.requestOptions.method} ${err.requestOptions.uri} ${err.message}');
  if (err.response?.data is String) return err.response?.data;
  if (err.response?.data?['errors'] != null) {
    final errors = err.response?.data['errors'] as Map<String, dynamic>;
    return errors.values
        .map(
          (ele) =>
              (ele as List<dynamic>).map((ele) => ele.toString()).join('\n'),
        )
        .join('\n');
  }
  return err.message ?? err.toString();
}

void showErrorAlert(dynamic err) async {
  final text = switch (err) {
    String _ => err,
    DioException _ => _parseRemoteError(err),
    Exception _ => err.toString(),
    _ => err.toString(),
  };
  FlutterPlatformAlert.showAlert(
    windowTitle: 'somethingWentWrong'.tr(),
    text: text,
    alertStyle: AlertButtonStyle.ok,
    iconStyle: IconStyle.error,
  );
}

void showInfoAlert(String message, String title) async {
  FlutterPlatformAlert.showAlert(
    windowTitle: title,
    text: message,
    alertStyle: AlertButtonStyle.ok,
    iconStyle: IconStyle.information,
  );
}

Future<bool> showConfirmAlert(String message, String title) async {
  final result = await FlutterPlatformAlert.showAlert(
    windowTitle: title,
    text: message,
    alertStyle: AlertButtonStyle.okCancel,
    iconStyle: IconStyle.question,
  );
  return result == AlertButton.okButton;
}

OverlayEntry? _loadingOverlay;
GlobalKey<_FadeOverlayState> _loadingOverlayKey = GlobalKey();

class _FadeOverlay extends StatefulWidget {
  const _FadeOverlay({super.key, required this.child});
  final Widget child;

  @override
  State<_FadeOverlay> createState() => _FadeOverlayState();
}

class _FadeOverlayState extends State<_FadeOverlay> {
  bool _visible = false;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      setState(() => _visible = true);
    });
  }

  @override
  Widget build(BuildContext context) {
    return AnimatedOpacity(
      opacity: _visible ? 1.0 : 0.0,
      duration: const Duration(milliseconds: 200),
      child: widget.child,
    );
  }
}

void showLoadingModal(BuildContext context) {
  if (_loadingOverlay != null) return;

  _loadingOverlay = OverlayEntry(
    builder:
        (context) => _FadeOverlay(
          key: _loadingOverlayKey,
          child: Material(
            color: Colors.black54,
            child: Center(
              child: Material(
                color: Colors.white,
                borderRadius: BorderRadius.circular(8),
                elevation: 4,
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    CircularProgressIndicator(year2023: true),
                    const Gap(24),
                    Text('loading'.tr()),
                  ],
                ).padding(all: 32),
              ),
            ),
          ),
        ),
  );

  Overlay.of(context).insert(_loadingOverlay!);
}

void hideLoadingModal(BuildContext context) async {
  if (_loadingOverlay == null) return;

  final entry = _loadingOverlay!;
  _loadingOverlay = null;

  final state = entry.mounted ? _loadingOverlayKey.currentState : null;

  if (state != null) {
    // ignore: invalid_use_of_protected_member
    state.setState(() => state._visible = false);
    await Future.delayed(const Duration(milliseconds: 200));
  }

  entry.remove();
}