import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:jiu_client/core/models/page_result.dart';
import 'package:jiu_client/models/product.dart';
import 'package:jiu_client/models/inventory.dart';
import 'package:jiu_client/providers/product_provider.dart';
import 'package:jiu_client/providers/inventory_provider.dart';
import 'package:jiu_client/repositories/product_repository.dart';
import 'package:jiu_client/repositories/inventory_repository.dart';
import 'package:jiu_client/screens/products/product_detail_screen.dart';

import '../support/golden_harness.dart';

/// design-distill 阶段4：商品详情「富数据版」golden × 三主题。
/// 验证 3 KPI（当前库存/货值/近30天出库）+ 各仓库分布 + 近期流水（接后端
/// /inventory?product_id + /inventory/logs?product_id 聚合）。
/// 更新基准：flutter test --update-goldens test/golden/product_detail_golden_test.dart

class _FakeProductRepo implements ProductRepository {
  @override
  Future<Product> getDetail(int id) async => const Product(
      id: 1,
      code: 'MT-FT-500',
      name: '茅台 飞天 53°',
      unit: '件',
      series: '飞天',
      spec: '500ml×6',
      brand: '茅台',
      purchasePrice: 2680,
      categoryName: '酱香');
  @override
  Future<List<({String date, double price})>> getPriceHistory(int id) async =>
      const [
        (date: '2026-06-12', price: 2680),
        (date: '2026-04-20', price: 2620),
        (date: '2026-02-08', price: 2700),
        (date: '2025-11-15', price: 2580),
      ];
  @override
  dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}

class _FakeInvRepo implements InventoryRepository {
  @override
  Future<PageResult<Inventory>> listInventory({
    int? warehouseId,
    int? productId,
    String? keyword,
    String? code,
    List<String>? series,
    List<String>? spec,
    int page = 1,
    int pageSize = 50,
  }) async =>
      const PageResult(data: [
        Inventory(id: 1, productId: 1, quantity: 92, warehouseName: '主仓'),
        Inventory(id: 2, productId: 1, quantity: 28, warehouseName: '二号仓'),
        Inventory(id: 3, productId: 1, quantity: 8, warehouseName: '冷藏库'),
      ], total: 3, page: 1, pageSize: 1000);

  @override
  Future<PageResult<InventoryLog>> listLogs({
    int? warehouseId,
    int? productId,
    int page = 1,
    int pageSize = 50,
  }) async =>
      const PageResult(data: [
        InventoryLog(
            warehouseId: 1,
            productId: 1,
            direction: 'in',
            quantity: 24,
            createdAt: '2026-06-20T09:00:00'),
        InventoryLog(
            warehouseId: 1,
            productId: 1,
            direction: 'out',
            quantity: 12,
            createdAt: '2026-06-18T09:00:00'),
        InventoryLog(
            warehouseId: 2,
            productId: 1,
            direction: 'out',
            quantity: 18,
            createdAt: '2026-06-15T09:00:00'),
        InventoryLog(
            warehouseId: 1,
            productId: 1,
            direction: 'in',
            quantity: 36,
            createdAt: '2026-06-12T09:00:00'),
      ], total: 4, page: 1, pageSize: 100);

  @override
  dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}

List<Override> _overrides() => [
      productRepositoryProvider.overrideWithValue(_FakeProductRepo()),
      inventoryRepositoryProvider.overrideWithValue(_FakeInvRepo()),
    ];

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  SharedPreferences.setMockInitialValues({});

  goldenAcrossThemes(
    'product detail 富数据(桌面)',
    goldenPrefix: 'product_detail',
    child: () => const Scaffold(body: ProductDetailScreen(productId: 1)),
    overrides: _overrides,
    logical: const Size(1100, 1300),
  );
}