using MeetTheTeacher.Model;

namespace MeetTheTeacher.Test.Model;

public sealed class CsvDataTests
{
    [Fact]
    public void GetHeader_Valid()
    {
        var headerNames = new List<string> { "Name", "Day", "ConsultingHour", "Room" };
        var data = new List<string> { "Teacher1", "Monday", "10:00-12:00", "A1" };
        
        var csvData = new CsvData(headerNames, data);

        csvData.GetHeader().Should().Be("Name;Day;ConsultingHour;Room");
    }

    [Fact]
    public void GetData_Valid()
    {
        var headerNames = new List<string> { "Name", "Day", "ConsultingHour", "Room" };
        var data = new List<string> { "Teacher1", "Monday", "10:00-12:00", "A1" };
        
        var csvData = new CsvData(headerNames, data);

        csvData.GetData().Should().Be("Teacher1;Monday;10:00-12:00;A1");
    }

    [Fact]
    public void Deconstruct_Valid()
    {
        var headerNames = new List<string> { "Name", "Day", "ConsultingHour", "Room" };
        var data = new List<string> { "Teacher1", "Monday", "10:00-12:00", "A1" };
        
        var csvData = new CsvData(headerNames, data);

        var (deconstructedHeaderNames, deconstructedData) = csvData;

        deconstructedHeaderNames.Should().BeEquivalentTo(headerNames);
        deconstructedData.Should().BeEquivalentTo(data);
    }
    
    [Theory]
    [MemberData(nameof(EmptyInputData))]
    public void GetHeaderAndData_EmptyInputData_ReturnsEmptyString(string[] headerNames, string[] data)
    {
        var csvData = new CsvData(headerNames, data);

        string header = csvData.GetHeader();
        string rowData = csvData.GetData();

        header.Should().Be(string.Join(CsvData.Separator, headerNames));
        rowData.Should().Be(string.Join(CsvData.Separator, data));
    }
    
    public static TheoryData<string[], string[]> EmptyInputData => new()
    {
        { Array.Empty<string>(), new[] { "Teacher1", "Monday", "10:00-12:00", "A1" } },
        { new[] { "Name", "Day", "ConsultingHour", "Room" }, Array.Empty<string>() },
        { Array.Empty<string>(), Array.Empty<string>() }
    };
}