using System;
using NUnit.Framework;
using CandyHouseBase.DataModels;
using CandyHouseBase.Exceptions;

namespace CandyHouseTests.DataModelsTests
{
    [TestFixture]
    public class IngredientDataModelTests
    {
        [Test]
        public void CreateIngredientDataModel_ValidData_ShouldCreateSuccessfully()
        {
            var id = Guid.NewGuid().ToString();
            var name = "Sugar";
            var unit = "kg";
            var cost = 10.5m;

            var ingredient = new IngredientDataModel(id, name, unit, cost);

            Assert.AreEqual(id, ingredient.Id);
            Assert.AreEqual(name, ingredient.Name);
            Assert.AreEqual(unit, ingredient.Unit);
            Assert.AreEqual(cost, ingredient.Cost);
        }

        [Test]
        public void Validate_ValidData_ShouldNotThrowException()
        {
            var ingredient = new IngredientDataModel(Guid.NewGuid().ToString(), "Sugar", "kg", 10);

            Assert.DoesNotThrow(() => ingredient.Validate());
        }

        [Test]
        public void Validate_InvalidId_ShouldThrowValidationException()
        {
            var ingredient = new IngredientDataModel("", "Sugar", "kg", 10);

            Assert.Throws<ValidationException>(() => ingredient.Validate());
        }

        [Test]
        public void Validate_InvalidName_ShouldThrowValidationException()
        {
            var ingredient = new IngredientDataModel(Guid.NewGuid().ToString(), "", "kg", 10);

            Assert.Throws<ValidationException>(() => ingredient.Validate());
        }

        [Test]
        public void Validate_NegativeQuantity_ShouldThrowValidationException()
        {
            var ingredient = new IngredientDataModel(Guid.NewGuid().ToString(), "Sugar", "kg", -5);

            Assert.Throws<ValidationException>(() => ingredient.Validate());
        }
    }
}