using Grand.Business.Marketing.Services.Documents;
using Grand.Data;
using Grand.Domain.Documents;
using Grand.Infrastructure.Events;
using MediatR;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Moq;

namespace Grand.Business.Marketing.Tests.Services.Documents;

[TestClass]
public class DocumentServiceTests
{
    private Mock<IRepository<Document>> _documentRepositoryMock;
    private DocumentService _documentService;
    private Mock<IMediator> _mediatorMock;

    [TestInitialize]
    public void Init()
    {
        _mediatorMock = new Mock<IMediator>();
        _documentRepositoryMock = new Mock<IRepository<Document>>();
        _documentService = new DocumentService(_documentRepositoryMock.Object, _mediatorMock.Object);
    }

    [TestMethod]
    public async Task DeleteDocument_NullArgument_ThrowException()
    {
        await Assert.ThrowsExceptionAsync<ArgumentNullException>(async () => await _documentService.Delete(null),
            "document");
    }

    [TestMethod]
    public async Task DeleteDocument_ValidArgument()
    {
        await _documentService.Delete(new Document());
        _documentRepositoryMock.Verify(c => c.DeleteAsync(It.IsAny<Document>()), Times.Once);
        _mediatorMock.Verify(c => c.Publish(It.IsAny<EntityDeleted<Document>>(), default), Times.Once);
    }

    [TestMethod]
    public async Task GetDocumentById()
    {
        await _documentService.GetById("id");
        _documentRepositoryMock.Verify(c => c.GetByIdAsync(It.IsAny<string>()), Times.Once);
    }

    [TestMethod]
    public async Task InsertDocument_NullArgument_ThrowException()
    {
        await Assert.ThrowsExceptionAsync<ArgumentNullException>(async () => await _documentService.Insert(null),
            "document");
    }

    [TestMethod]
    public async Task InsertDocument_ValidArgument()
    {
        await _documentService.Insert(new Document());
        _documentRepositoryMock.Verify(c => c.InsertAsync(It.IsAny<Document>()), Times.Once);
        _mediatorMock.Verify(c => c.Publish(It.IsAny<EntityInserted<Document>>(), default), Times.Once);
    }

    [TestMethod]
    public async Task UpdateDocument_ValidArgument()
    {
        await _documentService.Update(new Document());
        _documentRepositoryMock.Verify(c => c.UpdateAsync(It.IsAny<Document>()), Times.Once);
        _mediatorMock.Verify(c => c.Publish(It.IsAny<EntityUpdated<Document>>(), default), Times.Once);
    }

    [TestMethod]
    public void UpdateDocument_NullArgument_ThrowException()
    {
        Assert.ThrowsExceptionAsync<ArgumentNullException>(async () => await _documentService.Update(null), "document");
    }
}