using System;
using System.Collections.Generic;
using System.IO;
using BroseCumulativeReport;
using BroseCumulativeReport.Model;
using Microsoft.Extensions.Configuration;
using Moq;
using Xunit;

namespace BroseCumulativeReport.Tests
{
    public class ExcelGeneratorTests
    {
        private readonly Mock<IConfiguration> _mockConfiguration = new();

        public ExcelGeneratorTests()
        {
            // Setup mock IConfiguration behavior if needed
        }

        [Fact]
        public void GenerateExcel_ShouldCreateFile_WhenProvidedValidInput()
        {
            // Arrange
            var excelGenerator = new ExcelGenerator(_mockConfiguration.Object);
            string tempFilePath = Path.GetTempFileName();
            List<MainRow> mainRows = new List<MainRow>();

            // Minimal MainRow data to avoid empty file scenario
            mainRows.Add(new MainRow
            {
                CustomerName = "Customer",
                CustomerOrderNumber = "Order1",
                OrderNumber = "OrderNum",
                OrderDate = DateTime.Today,
                SalesChannelProductCode = "SCP",
                ShipperProductCode = "SPC",
                LastWzNumber = "WZ123",
                WzQuantity = 1,
                SendDatesWithQuantity = new List<(DateTime, int)> { (DateTime.Today, 1) },
                ChildRows = new List<ChildRow>()
            });

            // Act
            excelGenerator.GenerateExcel(tempFilePath, mainRows);

            // Assert
            Assert.True(File.Exists(tempFilePath));

            // Cleanup
            File.Delete(tempFilePath);
        }

        //[Fact]
        // This test requires refactoring ExcelGenerator to allow injection of SMTP client
        // to mock and verify sending logic without side effects.
        //public void SendEmail_ShouldSendEmailWithoutExceptions_WhenCalled()
        //{
        //    // Arrange
        //    var excelGenerator = new ExcelGenerator(_mockConfiguration.Object);
        //    string dummyFilePath = "dummyfile.xlsx";

        //    // Act & Assert
        //    var exception = Record.Exception(() => excelGenerator.SendEmail(dummyFilePath));
        //    Assert.Null(exception);
        //}
    }
}