using System;
using Deltares.Dam.Data;
using NUnit.Framework;
using System.Collections.Generic;

namespace Deltares.Dam.Tests
{
    [TestFixture]
    public class ObjectMaterializerTest
    {
        [Test]
        public void CanAddPropertySetter()
        {
            var materializer = new ObjectMaterializer<Foo>();
            materializer.Add("name", (entity, value) => entity.Name = value);
            Assert.AreEqual(1, materializer.Count);
        }        

        [Test]
        public void CanRemovePropertySetter()
        {
            var materializer = new ObjectMaterializer<Foo>();
            materializer.Add("name", (entity, value) => entity.Name = value);
            materializer.Remove("name");
            Assert.AreEqual(0, materializer.Count);
        }        

        [Test]
        [ExpectedExceptionAttribute(typeof(ArgumentException))]
        public void ThrowsExceptionWhenKeyIsAlreadyAdded()
        {
            var materializer = new ObjectMaterializer<Foo>();
            materializer.Add("name", (entity, value) => entity.Name = value);
            materializer.Add("name", (entity, value) => entity.Name = "test " + value);
        }

        [Test]
        [ExpectedExceptionAttribute(typeof(KeyNotFoundException))]
        public void ThrowsExceptionWhenPropertSetterNotExists()
        {
            var foo = new Foo();
            var materializer = new ObjectMaterializer<Foo>();
            materializer.Add("name", (entity, value) => entity.Name = value);
            materializer["age"](foo, "10");
        }

        [Test]
        public void CanMaterializeObject()
        {
            var foo = new Foo();
            var materializer = new ObjectMaterializer<Foo>();
            materializer.Add("name", (entity, value) => entity.Name = value);
            materializer.Add("age", (entity, value) => entity.Age = int.Parse(value));
            materializer["name"](foo, "Foo's name");
            materializer["age"](foo, "10");

            Assert.AreEqual(10, foo.Age);
            Assert.AreEqual("Foo's name", foo.Name);
        }

        class Foo
        {
            public string Name { get; set; }
            public int Age { get; set; }
        }
    }
}