using BudgetApp.Data.Entities;
using Xunit;

namespace BudgetApp.Tests.Models;

public class AccountModelTests
{
    [Theory]
    [InlineData("GBP", "£")]
    [InlineData("USD", "$")]
    [InlineData("EUR", "€")]
    [InlineData("JPY", "¥")]
    [InlineData("INR", "₹")]
    public void GetSymbol_KnownCurrency_ReturnsSymbol(string code, string expected)
    {
        var account = new Account { CurrencyCode = code };
        Assert.Equal(expected, account.GetSymbol());
    }

    [Fact]
    public void GetSymbol_UnknownCurrency_ReturnsCurrencyCode()
    {
        var account = new Account { CurrencyCode = "XYZ" };
        Assert.Equal("XYZ", account.GetSymbol());
    }

    [Fact]
    public void FormatAmount_FormatsWithSymbolAndTwoDecimals()
    {
        var account = new Account { CurrencyCode = "GBP" };
        Assert.Equal("£1,234.56", account.FormatAmount(1234.56m));
    }

    [Fact]
    public void FormatAmount_NegativeAmount_IncludesMinusSign()
    {
        var account = new Account { CurrencyCode = "USD" };
        Assert.Equal("$-50.00", account.FormatAmount(-50m));
    }

    [Fact]
    public void FormatAmount_Zero_FormatsCorrectly()
    {
        var account = new Account { CurrencyCode = "EUR" };
        Assert.Equal("€0.00", account.FormatAmount(0m));
    }

    [Fact]
    public void CurrencySymbols_ContainsExpectedCount()
    {
        Assert.Equal(20, Account.CurrencySymbols.Count);
    }

    [Fact]
    public void DefaultValues_AreCorrect()
    {
        var account = new Account();
        Assert.Equal(string.Empty, account.Name);
        Assert.Equal(0m, account.CurrentBalance);
        Assert.Equal("#1b6ec2", account.Color);
        Assert.Equal("GBP", account.CurrencyCode);
    }
}