nomo/lib/app/dialog/loading/simple_loading_dialog.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:lottie/lottie.dart';
import 'package:get/get.dart';
import 'package:nomo/config/theme/theme_extensions/theme_extension.dart';

import '../../components/ix_snackbar.dart';
import '../../data/models/api_exception.dart';
import '../../data/models/failure.dart';
import '../../../config/translations/strings_enum.dart';
import '../error_dialog.dart';

class SimpleLoadingDialog extends StatefulWidget {
  final Future<void> Function() onRequest; // 异步请求函数
  final VoidCallback? onSuccess; // 成功后的回调
  final VoidCallback? onError; // 错误后的回调
  final bool canCancel; // 是否可以取消
  final VoidCallback? onCancel; // 取消后的回调

  const SimpleLoadingDialog({
    super.key,
    required this.onRequest,
    this.onSuccess,
    this.onError,
    this.canCancel = false,
    this.onCancel,
  });

  static Future<void> show({
    required BuildContext context,
    required Future<void> Function() onRequest,
    VoidCallback? onSuccess,
    VoidCallback? onError,
    bool canCancel = false,
    VoidCallback? onCancel,
  }) {
    return showDialog(
      context: context,
      barrierDismissible: false,
      builder: (context) => SimpleLoadingDialog(
        onRequest: onRequest,
        onSuccess: onSuccess,
        onError: onError,
        canCancel: canCancel,
        onCancel: onCancel,
      ),
    );
  }

  @override
  State<SimpleLoadingDialog> createState() => _SimpleLoadingDialogState();
}

class _SimpleLoadingDialogState extends State<SimpleLoadingDialog>
    with TickerProviderStateMixin {
  late final AnimationController _controller;
  bool _isCancelled = false;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(vsync: this);
    _handleRequest();
  }

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

  Future<void> _handleRequest() async {
    try {
      if (_isCancelled) return;
      await widget.onRequest();
      if (_isCancelled) return;

      // 成功后直接关闭对话框并回调
      if (mounted) {
        Navigator.of(context).pop();
        widget.onSuccess?.call();
      }
    } catch (e, s) {
      if (mounted) {
        Navigator.of(context).pop();
        widget.onError?.call();
        handleSnackBarError(e, s);
      }
    }
  }

  void handleSnackBarError(dynamic error, StackTrace stackTrace) {
    if (error is ApiException) {
      ErrorDialog.show(message: error.message);
    } else if (error is Failure) {
      ErrorDialog.show(message: error.message ?? Strings.unknownError.tr);
    } else if (error is DioException) {
      switch (error.type) {
        case DioExceptionType.connectionError:
        case DioExceptionType.connectionTimeout:
        case DioExceptionType.receiveTimeout:
        case DioExceptionType.sendTimeout:
          IXSnackBar.showIXErrorSnackBar(
            title: Strings.error.tr,
            message: Strings.unableToConnectNetwork.tr,
          );
          break;
        default:
          IXSnackBar.showIXErrorSnackBar(
            title: Strings.error.tr,
            message: Strings.unableToConnectServer.tr,
          );
      }
    } else {
      IXSnackBar.showIXErrorSnackBar(
        title: Strings.error.tr,
        message: error.toString(),
      );
    }
  }

  void _handleCancel() {
    setState(() {
      _isCancelled = true;
    });
    Navigator.of(context).pop();
    widget.onCancel?.call();
  }

  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      onWillPop: () async => widget.canCancel,
      child: Dialog(
        backgroundColor: Colors.transparent,
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            SizedBox(
              width: 32.w,
              height: 32.w,
              child: Lottie.asset(
                'assets/lottie/loading.json',
                controller: _controller,
                frameRate: FrameRate.max,
                onLoaded: (composition) {
                  _controller.duration = const Duration(milliseconds: 3000);
                  _controller.addListener(() {
                    if (_controller.value >= 0.5) {
                      _controller.value = 0.0;
                      _controller.forward();
                    }
                  });
                  _controller.forward();
                },
              ),
            ),
            if (widget.canCancel) ...[
              16.verticalSpaceFromWidth,
              GestureDetector(
                onTap: _handleCancel,
                child: Container(
                  padding: EdgeInsets.symmetric(
                    horizontal: 16.w,
                    vertical: 8.h,
                  ),
                  decoration: BoxDecoration(
                    color: Get.reactiveTheme.scaffoldBackgroundColor,
                    borderRadius: BorderRadius.circular(8.r),
                    border: Border.all(
                      color: Get.reactiveTheme.scaffoldBackgroundColor,
                      width: 1.w,
                    ),
                  ),
                  child: Text(
                    Strings.cancel.tr,
                    style: TextStyle(
                      color: Get.reactiveTheme.textTheme.bodyLarge!.color,
                      fontSize: 12.sp,
                      fontWeight: FontWeight.w500,
                    ),
                  ),
                ),
              ),
            ],
          ],
        ),
      ),
    );
  }
}