using AssetManager.Data.Repositories;
using AssetManager.Infrastructure.Services;
using AssetManager.Models.DTOs;
using AssetManager.Services;
using FluentAssertions;
using Microsoft.Extensions.Logging;
using Moq;
using SqlSugar;
using Xunit;

namespace AssetManager.Tests.Services;

/// <summary>
/// PortfolioService 单元测试
/// </summary>
public class PortfolioServiceTests
{
    private readonly Mock<ISqlSugarClient> _dbMock;
    private readonly Mock<IMarketDataService> _marketDataServiceMock;
    private readonly Mock<IExchangeRateService> _exchangeRateServiceMock;
    private readonly Mock<IPortfolioNavService> _navServiceMock;
    private readonly Mock<ILogger<PortfolioService>> _loggerMock;
    private readonly PortfolioService _service;

    public PortfolioServiceTests()
    {
        _dbMock = new Mock<ISqlSugarClient>();
        _marketDataServiceMock = new Mock<IMarketDataService>();
        _exchangeRateServiceMock = new Mock<IExchangeRateService>();
        _navServiceMock = new Mock<IPortfolioNavService>();
        _loggerMock = new Mock<ILogger<PortfolioService>>();

        // Note: 实际测试需要更复杂的 SqlSugar mock 设置
        // 这里展示测试结构和模式
    }

    #region CreatePortfolio Tests

    [Fact(Skip = "需要 SqlSugar 完整 mock 设置")]
    public void CreatePortfolio_WithValidRequest_ShouldReturnResponse()
    {
        // Arrange
        var request = new CreatePortfolioRequest
        {
            Name = "测试组合",
            Currency = "CNY",
            Stocks = new List<StockItem>
            {
                new() { Code = "AAPL", Name = "Apple", Price = 150, Amount = 10 }
            }
        };
        var userId = "user-001";

        // Act
        // var response = _service.CreatePortfolio(request, userId);

        // Assert
        // response.Should().NotBeNull();
        // response.Id.Should().StartWith("port-");
        // response.Currency.Should().Be("CNY");
    }

    [Fact(Skip = "需要 SqlSugar 完整 mock 设置")]
    public void CreatePortfolio_WithStrategy_ShouldLoadStrategyStocks()
    {
        // Arrange
        var request = new CreatePortfolioRequest
        {
            Name = "风险平价组合",
            Currency = "USD",
            StrategyId = "strategy-001"
        };
        var userId = "user-001";

        // Act & Assert - 验证策略配置加载逻辑
    }

    #endregion

    #region GetPortfolios Tests

    [Fact(Skip = "需要 SqlSugar 完整 mock 设置")]
    public void GetPortfolios_ShouldReturnUserPortfolios()
    {
        // Arrange
        var userId = "user-001";

        // Act
        // var result = _service.GetPortfolios(userId);

        // Assert
        // result.Should().NotBeNull();
    }

    #endregion

    #region GetTotalAssets Tests

    [Fact(Skip = "需要 Repository mock 设置")]
    public async Task GetTotalAssetsAsync_ShouldConvertToTargetCurrency()
    {
        // Arrange
        var userId = "user-001";

        _marketDataServiceMock
            .Setup(x => x.GetPriceAsync(It.IsAny<string>(), It.IsAny<string>()))
            .ReturnsAsync(new MarketPriceResponse { Price = 100, PreviousClose = 98 });

        _exchangeRateServiceMock
            .Setup(x => x.ConvertAmountAsync(It.IsAny<decimal>(), It.IsAny<string>(), It.IsAny<string>()))
            .ReturnsAsync((decimal amount, string _, string _) => amount * 7.2m);

        // Act
        // var result = await _service.GetTotalAssetsAsync(userId);

        // Assert
        // result.Should().NotBeNull();
    }

    #endregion

    #region CreateTransaction Tests

    [Fact(Skip = "需要 SqlSugar 完整 mock 设置")]
    public async Task CreateTransaction_BuyNewStock_ShouldCreatePosition()
    {
        // Arrange
        var request = new CreateTransactionRequest
        {
            PortfolioId = "port-001",
            Type = "buy",
            StockCode = "AAPL",
            Amount = 10,
            Price = 150,
            Currency = "USD"
        };
        var userId = "user-001";

        // Act
        // var result = await _service.CreateTransaction(request, userId);

        // Assert
        // result.Should().NotBeNull();
    }

    [Fact(Skip = "需要 SqlSugar 完整 mock 设置")]
    public async Task CreateTransaction_SellMoreThanHeld_ShouldThrowException()
    {
        // Arrange
        var request = new CreateTransactionRequest
        {
            PortfolioId = "port-001",
            Type = "sell",
            StockCode = "AAPL",
            Amount = 100, // 超过持仓
            Price = 150,
            Currency = "USD"
        };
        var userId = "user-001";

        // Act & Assert
        // await Assert.ThrowsAsync<Exception>(() => _service.CreateTransaction(request, userId));
    }

    [Fact(Skip = "需要 SqlSugar 完整 mock 设置")]
    public async Task CreateTransaction_WrongCurrency_ShouldThrowException()
    {
        // Arrange
        var request = new CreateTransactionRequest
        {
            PortfolioId = "port-001", // 组合币种为 CNY
            Type = "buy",
            StockCode = "AAPL",
            Amount = 10,
            Price = 150,
            Currency = "USD" // 币种不匹配
        };
        var userId = "user-001";

        // Act & Assert
        // await Assert.ThrowsAsync<Exception>(() => _service.CreateTransaction(request, userId));
    }

    #endregion
}