nomo/lib/app/widgets/state/simple_state_wrapper.dart

import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:flutter_spinkit/flutter_spinkit.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:get/get.dart';
import 'package:nomo/config/theme/theme_extensions/theme_extension.dart';
import '../../../config/translations/strings_enum.dart';
import '../../constants/assets.dart';
import '../submit_btn.dart';

enum SimpleViewState { loading, empty, error, networkError, success }

class SimpleStateWrapper extends StatelessWidget {
  final Widget child;
  final SimpleViewState state;
  final String? errorMessage;
  final VoidCallback? onRetry;
  final VoidCallback? onRefresh;
  final double? width;
  final double? height;

  // 可选的自定义状态视图
  final Widget Function(BuildContext)? loadingBuilder;
  final Widget Function(BuildContext)? emptyBuilder;
  final Widget Function(BuildContext, String?)? errorBuilder;
  final Widget Function(BuildContext)? networkErrorBuilder;

  const SimpleStateWrapper({
    super.key,
    required this.child,
    required this.state,
    this.errorMessage,
    this.onRetry,
    this.onRefresh,
    this.width,
    this.height,
    this.loadingBuilder,
    this.emptyBuilder,
    this.errorBuilder,
    this.networkErrorBuilder,
  });

  // 默认加载视图
  Widget _defaultLoadingView(BuildContext context) {
    return Center(
      child: SpinKitRing(
        size: 24.w,
        lineWidth: 2.w,
        color: Get.reactiveTheme.primaryColor,
      ),
    );
  }

  // 默认空视图
  Widget _defaultEmptyView(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          SvgPicture.asset(Assets.oops, width: 160.w, height: 160.w),
          Text(
            Strings.noData.tr,
            style: TextStyle(
              fontSize: 14.sp,
              color: Get.reactiveTheme.textTheme.bodyLarge!.color!,
            ),
          ),
          24.verticalSpaceFromWidth,
          SizedBox(
            width: 247.w,
            child: SubmitSvgButton(
              onPressed: onRefresh ?? () {},
              text: Strings.refresh.tr,
              svgPath: Assets.refersh,
              svgColor: Get.reactiveTheme.textTheme.bodyLarge!.color,
              bgColor: Get.reactiveTheme.primaryColor,
              textColor: Get.reactiveTheme.textTheme.bodyLarge!.color,
              borderColor: Get.reactiveTheme.dividerColor,
            ),
          ),
          40.verticalSpaceFromWidth,
        ],
      ),
    );
  }

  // 默认错误视图
  Widget _defaultErrorView(BuildContext context, String? error) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          SvgPicture.asset(Assets.oops, width: 160.w, height: 160.w),
          Padding(
            padding: EdgeInsets.symmetric(horizontal: 20.w),
            child: Text(
              error ?? Strings.unableToConnectServer.tr,
              style: TextStyle(
                fontSize: 14.sp,
                color: Get.reactiveTheme.textTheme.bodyLarge!.color,
              ),
            ),
          ),
          24.verticalSpaceFromWidth,
          SizedBox(
            width: 247.w,
            child: SubmitSvgButton(
              onPressed: onRefresh ?? () {},
              text: Strings.retry.tr,
              svgPath: Assets.refersh,
              svgColor: Get.reactiveTheme.textTheme.bodyLarge!.color,
              bgColor: Get.reactiveTheme.primaryColor,
              textColor: Get.reactiveTheme.textTheme.bodyLarge!.color,
              borderColor: Get.reactiveTheme.dividerColor,
            ),
          ),
          40.verticalSpaceFromWidth,
        ],
      ),
    );
  }

  // 网络错误视图
  Widget _defaultNetworkErrorView(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          SvgPicture.asset(Assets.oops, width: 160.w, height: 160.w),
          Padding(
            padding: EdgeInsets.symmetric(horizontal: 20.w),
            child: Text(
              Strings.unableToConnectNetwork.tr, // 需要添加网络错误文案
              style: TextStyle(
                fontSize: 12.sp,
                color: Get.reactiveTheme.textTheme.bodyLarge!.color,
              ),
            ),
          ),
          24.verticalSpaceFromWidth,
          SizedBox(
            width: 247.w,
            child: SubmitSvgButton(
              onPressed: onRefresh ?? () {},
              text: Strings.retry.tr,
              svgPath: Assets.refersh,
              svgColor: Get.reactiveTheme.textTheme.bodyLarge!.color,
              bgColor: Get.reactiveTheme.primaryColor,
              textColor: Get.reactiveTheme.textTheme.bodyLarge!.color,
              borderColor: Get.reactiveTheme.dividerColor,
            ),
          ),
          40.verticalSpaceFromWidth,
        ],
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: width,
      height: height,
      child: Builder(
        builder: (context) {
          switch (state) {
            case SimpleViewState.loading:
              return loadingBuilder?.call(context) ??
                  _defaultLoadingView(context);
            case SimpleViewState.empty:
              return emptyBuilder?.call(context) ?? _defaultEmptyView(context);
            case SimpleViewState.error:
              return errorBuilder?.call(context, errorMessage) ??
                  _defaultErrorView(context, errorMessage);
            case SimpleViewState.networkError:
              return networkErrorBuilder?.call(context) ??
                  _defaultNetworkErrorView(context);
            case SimpleViewState.success:
              return child;
          }
        },
      ),
    );
  }
}