import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:yumi/ui_kit/components/sc_debounce_widget.dart';
import 'package:yumi/ui_kit/theme/socialchat_theme.dart';

typedef RoomPasswordSubmit = Future<String?> Function(String password);

class RoomPasswordDialog extends StatefulWidget {
  static const String dialogTag = 'showRoomPasswordDialog';

  const RoomPasswordDialog({
    super.key,
    required this.onSubmit,
    required this.onCancel,
    required this.onSuccess,
  });

  final RoomPasswordSubmit onSubmit;
  final VoidCallback onCancel;
  final ValueChanged<String> onSuccess;

  static Future<String?> show({required RoomPasswordSubmit onSubmit}) {
    final completer = Completer<String?>();
    var isCompleted = false;

    void complete(String? password) {
      if (isCompleted) {
        return;
      }
      isCompleted = true;
      completer.complete(password);
    }

    SmartDialog.dismiss(tag: dialogTag);
    SmartDialog.show(
      tag: dialogTag,
      alignment: Alignment.center,
      animationType: SmartAnimationType.fade,
      backType: SmartBackType.block,
      clickMaskDismiss: false,
      maskColor: Colors.black.withValues(alpha: 0.58),
      onDismiss: () {
        complete(null);
      },
      builder: (_) {
        return RoomPasswordDialog(
          onSubmit: onSubmit,
          onCancel: () {
            complete(null);
            SmartDialog.dismiss(tag: dialogTag);
          },
          onSuccess: (password) {
            complete(password);
            SmartDialog.dismiss(tag: dialogTag);
          },
        );
      },
    );

    return completer.future;
  }

  @override
  State<RoomPasswordDialog> createState() => _RoomPasswordDialogState();
}

class _RoomPasswordDialogState extends State<RoomPasswordDialog> {
  final TextEditingController _passwordController = TextEditingController();
  String _errorText = "";
  bool _isSubmitting = false;

  @override
  void dispose() {
    _passwordController.dispose();
    super.dispose();
  }

  Future<void> _handleEnter() async {
    if (_isSubmitting) {
      return;
    }
    final password = _passwordController.text.trim();
    if (password.isEmpty) {
      setState(() {
        _errorText = "Please enter password";
      });
      return;
    }

    setState(() {
      _errorText = "";
      _isSubmitting = true;
    });
    final errorText = await widget.onSubmit(password);
    if (!mounted) {
      return;
    }
    if ((errorText ?? "").trim().isNotEmpty) {
      setState(() {
        _errorText = errorText!.trim();
        _isSubmitting = false;
      });
      return;
    }
    widget.onSuccess(password);
  }

  @override
  Widget build(BuildContext context) {
    return Material(
      type: MaterialType.transparency,
      child: Center(
        child: Container(
          width: 316.w,
          padding: EdgeInsets.fromLTRB(18.w, 18.w, 18.w, 16.w),
          decoration: BoxDecoration(
            color: const Color(0xff09372E),
            borderRadius: BorderRadius.circular(12.w),
          ),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Text(
                "Room lock",
                textAlign: TextAlign.center,
                style: TextStyle(
                  color: Colors.white,
                  fontSize: 16.sp,
                  fontWeight: FontWeight.w600,
                  height: 1,
                ),
              ),
              SizedBox(height: 18.w),
              _buildPasswordInput(),
              SizedBox(height: _errorText.isEmpty ? 14.w : 8.w),
              if (_errorText.isNotEmpty) _buildErrorText(),
              SizedBox(height: 12.w),
              Row(
                children: [
                  Expanded(
                    child: _buildButton(
                      label: "cancel",
                      filled: false,
                      onTap: _isSubmitting ? null : widget.onCancel,
                    ),
                  ),
                  SizedBox(width: 12.w),
                  Expanded(
                    child: _buildButton(
                      label: "enter",
                      filled: true,
                      onTap: _isSubmitting ? null : _handleEnter,
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }

  Widget _buildPasswordInput() {
    return Container(
      height: 44.w,
      decoration: BoxDecoration(
        color: const Color(0xff08251E),
        borderRadius: BorderRadius.circular(8.w),
        border: Border.all(color: const Color(0xffB2FBCC), width: 1),
      ),
      child: TextField(
        controller: _passwordController,
        autofocus: true,
        obscureText: true,
        cursorColor: SocialChatTheme.primaryColor,
        keyboardType: TextInputType.visiblePassword,
        textInputAction: TextInputAction.done,
        inputFormatters: [LengthLimitingTextInputFormatter(24)],
        onSubmitted: (_) {
          _handleEnter();
        },
        textAlignVertical: TextAlignVertical.center,
        decoration: InputDecoration(
          hintText: "Please enter password",
          hintStyle: TextStyle(
            color: Colors.white.withValues(alpha: 0.55),
            fontSize: 14.sp,
            height: 16 / 14,
          ),
          filled: true,
          fillColor: Colors.transparent,
          border: InputBorder.none,
          enabledBorder: InputBorder.none,
          focusedBorder: InputBorder.none,
          disabledBorder: InputBorder.none,
          errorBorder: InputBorder.none,
          focusedErrorBorder: InputBorder.none,
          isDense: true,
          contentPadding: EdgeInsets.symmetric(horizontal: 12.w),
        ),
        style: TextStyle(
          color: Colors.white,
          backgroundColor: Colors.transparent,
          fontSize: 14.sp,
          fontWeight: FontWeight.w400,
          height: 16 / 14,
        ),
      ),
    );
  }

  Widget _buildErrorText() {
    return SizedBox(
      width: double.infinity,
      child: Text(
        _errorText,
        maxLines: 2,
        overflow: TextOverflow.ellipsis,
        style: TextStyle(
          color: const Color(0xffff4d4d),
          fontSize: 12.sp,
          fontWeight: FontWeight.w400,
          height: 14 / 12,
        ),
      ),
    );
  }

  Widget _buildButton({
    required String label,
    required bool filled,
    required VoidCallback? onTap,
  }) {
    final child = Container(
      height: 38.w,
      alignment: Alignment.center,
      decoration: BoxDecoration(
        color: filled ? SocialChatTheme.primaryColor : Colors.transparent,
        borderRadius: BorderRadius.circular(19.w),
        border: Border.all(
          color: filled ? SocialChatTheme.primaryColor : Colors.white,
          width: 1.w,
        ),
      ),
      child: Text(
        label,
        textAlign: TextAlign.center,
        style: TextStyle(
          color: filled ? Colors.black : Colors.white,
          fontSize: 14.sp,
          fontWeight: FontWeight.w600,
          height: 1,
        ),
      ),
    );

    return Opacity(
      opacity: onTap == null ? 0.55 : 1,
      child: SCDebounceWidget(onTap: onTap ?? () {}, child: child),
    );
  }
}