using BuildingDirectory.Model;

namespace BuildingDirectory.Test;

public sealed class BusinessCardTests
{

    [Fact]
    public void Equals_Equal()
    {
        BusinessCard[] cards = CreateSampleCards();

        cards[0].Equals(cards[1]).Should().BeTrue("only name is considered");
        cards[2].Equals(cards[3]).Should().BeTrue("only name is considered");
    }
    
    [Fact]
    public void Equals_NotEqual()
    {
        BusinessCard[] cards = CreateSampleCards();

        cards[1].Equals(cards[2]).Should().BeFalse("different people");
    }

    [Fact]
    public void HashCode_Value()
    {
        var card = CreateSampleCards()[0];
        
        card.GetHashCode()
            .Should().Be(card.GetHashCode(), "has to return same value for same input every time");
    }
    
    [Fact]
    public void HashCode_RelevantProperties()
    {
        BusinessCard[] cards = CreateSampleCards();
        var card1 = cards[2];
        var card2 = cards[3];
        
        card1.GetHashCode()
            .Should().Be(card2.GetHashCode(), "hash code only based on relevant properties");
    }
    
    private static BusinessCard[] CreateSampleCards() =>
    [
        new("Horst", "Fuchs", "Sales", null, "h.fuchs@foo.com"),
        new("Horst", "Fuchs", "KeyAccounting", "1234", "horst.fuchs@foo.com"),
        new("Susi", "Sonne", "Development", null, "s.sonne@foo.com"),
        new("Susi", "Sonne", "Research", null, "s.sonne@foo.com")
    ];
}