using FiscalFlow.Core.Entities;
using Xunit;
using FluentAssertions;

namespace FiscalFlow.UnitTests.Domain;

public class InvoiceTests
{
    [Fact]
    public void Create_ShouldInitializeInvoiceWithCorrectValues()
    {
        var connectionId = Guid.NewGuid();
        var invoice = Invoice.Create(
            connectionId,
            "fortnox",
            "test.pdf",
            "/path/to/file",
            1024,
            "hash123");

        invoice.ConnectionId.Should().Be(connectionId);
        invoice.Provider.Should().Be("fortnox");
        invoice.OriginalFilename.Should().Be("test.pdf");
        invoice.StoragePath.Should().Be("/path/to/file");
        invoice.FileSize.Should().Be(1024);
        invoice.FileHash.Should().Be("hash123");
        invoice.Status.Should().Be(InvoiceStatus.Uploading);
    }

    [Fact]
    public void SetExtractionData_ShouldUpdateExtractionFields()
    {
        var invoice = CreateTestInvoice();
        var extractionData = "{\"test\": \"data\"}";
        
        invoice.SetExtractionData(
            extractionData,
            0.95m,
            "Test Supplier",
            "556677-8899",
            "INV-001",
            new DateTime(2024, 1, 15),
            new DateTime(2024, 2, 15),
            1250.00m,
            250.00m,
            25,
            "123456789",
            "123-4567",
            null,
            "SEK");

        invoice.ExtractionData.Should().Be(extractionData);
        invoice.ExtractionConfidence.Should().Be(0.95m);
        invoice.ExtractedSupplierName.Should().Be("Test Supplier");
        invoice.ExtractedSupplierOrgNumber.Should().Be("556677-8899");
        invoice.ExtractedInvoiceNumber.Should().Be("INV-001");
        invoice.ExtractedAmountTotal.Should().Be(1250.00m);
        invoice.ExtractedAmountVat.Should().Be(250.00m);
        invoice.ExtractedVatRate.Should().Be(25);
        invoice.ExtractedOcrNumber.Should().Be("123456789");
        invoice.ExtractedBankgiro.Should().Be("123-4567");
        invoice.ExtractedCurrency.Should().Be("SEK");
        invoice.Status.Should().Be(InvoiceStatus.Preview);
    }

    [Fact]
    public void SetStatus_Imported_ShouldSetProcessedAt()
    {
        var invoice = CreateTestInvoice();
        
        invoice.SetStatus(InvoiceStatus.Imported);

        invoice.Status.Should().Be(InvoiceStatus.Imported);
        invoice.ProcessedAt.Should().NotBeNull();
    }

    [Fact]
    public void SetError_ShouldSetErrorFieldsAndStatus()
    {
        var invoice = CreateTestInvoice();
        
        invoice.SetError("INVALID_FILE", "File format not supported");

        invoice.ErrorCode.Should().Be("INVALID_FILE");
        invoice.ErrorMessage.Should().Be("File format not supported");
        invoice.Status.Should().Be(InvoiceStatus.Failed);
    }

    private static Invoice CreateTestInvoice()
    {
        return Invoice.Create(
            Guid.NewGuid(),
            "fortnox",
            "test.pdf",
            "/path/to/file");
    }
}