nomo/lib/app/widgets/state/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 '../../base/base_controller.dart';
import '../../constants/assets.dart';
import '../../constants/enums.dart';
import '../submit_btn.dart';

class StateWrapper extends StatelessWidget {
  final Widget child;
  final BaseController controller;
  final double? width;
  final double? height;
  final VoidCallback? onRefresh;

  // 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;

  const StateWrapper({
    super.key,
    required this.child,
    required this.controller,
    this.width,
    this.height,
    this.loadingBuilder,
    this.emptyBuilder,
    this.errorBuilder,
    this.onRefresh,
  });

  // 默认加载视图
  Widget _defaultLoadingView(BuildContext context) {
    return Center(
      // child: CircularProgressIndicator(),
      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,
    bool isNetworkError,
    String error,
  ) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          SvgPicture.asset(
            isNetworkError ? Assets.oops : Assets.oops,
            width: 160.w,
            height: 160.w,
          ),
          Padding(
            padding: EdgeInsets.symmetric(horizontal: 20.w),
            child: Text(
              error.isNotEmpty ? 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,
        ],
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: width,
      height: height,
      child: Obx(() {
        switch (controller.viewState.value) {
          case ViewState.loading:
            return loadingBuilder?.call(context) ??
                _defaultLoadingView(context);
          case ViewState.empty:
            return emptyBuilder?.call(context) ?? _defaultEmptyView(context);
          case ViewState.error:
            return errorBuilder?.call(context, controller.errorMessage.value) ??
                _defaultErrorView(
                  context,
                  controller.isNetworkError.value,
                  controller.errorMessage.value,
                );
          case ViewState.success:
            return child;
        }
      }),
    );
  }
}