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

namespace CandyHouseTests.DataModelsTests
{
    [TestFixture]
    public class ProductDataModelTests
    {
        [Test]
        public void CreateProductDataModel_ValidData_ShouldCreateSuccessfully()
        {
            var id = Guid.NewGuid().ToString();
            var name = "Candy";
            var description = "Delicious candy";
            var ingredients = new List<IngredientDataModel>()
                { new IngredientDataModel(Guid.NewGuid().ToString(), "sugar", "Sugar", 10) };
            var product = new ProductDataModel(id, name, description, ingredients);

            Assert.AreEqual(id, product.Id);
            Assert.AreEqual(name, product.Name);
            Assert.AreEqual(description, product.Description);
            Assert.AreEqual(ingredients, product.IngredientsItems);
        }

        [Test]
        public void CreateProductDataModel_InvalidId_ShouldThrowArgumentException()
        {
            var invalidId = "";
            var name = "Candy";
            var description = "Delicious candy";
            var ingredients = new List<IngredientDataModel>()
                { new IngredientDataModel(Guid.NewGuid().ToString(), "sugar", "Sugar", 10) };
            var product = new ProductDataModel(invalidId, name, description, ingredients);

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

        [Test]
        public void CreateProductDataModel_InvalidName_ShouldThrowArgumentException()
        {
            var id = Guid.NewGuid().ToString();
            var invalidName = "";
            var description = "Delicious candy";
            var ingredients = new List<IngredientDataModel>()
                { new IngredientDataModel(Guid.NewGuid().ToString(), "sugar", "Sugar", 10) };
            var product = new ProductDataModel(id, invalidName, description, ingredients);

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

        [Test]
        public void CreateProductDataModel_InvalidDescription_ShouldThrowArgumentException()
        {
            var id = Guid.NewGuid().ToString();
            var name = "Candy";
            var invalidDescription = "";
            var ingredients = new List<IngredientDataModel>()
                { new IngredientDataModel(Guid.NewGuid().ToString(), "sugar", "Sugar", 10) };
            var product = new ProductDataModel(id, name, invalidDescription, ingredients);

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

        [Test]
        public void CreateProductDataModel_InvalidIngredients_ShouldThrowArgumentException()
        {
            var id = Guid.NewGuid().ToString();
            var name = "Candy";
            var invalidDescription = "";
            var ingredients = new List<IngredientDataModel>();
            var product = new ProductDataModel(id, name, invalidDescription, ingredients);

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