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using System;
using System.Collections.Generic;
using Moq;
using XenAdmin.Actions;
using XenAPI;

namespace XenAdminTests.UnitTests.UnitTestHelper.MockObjectBuilders
{
    public class MockActionFactory
    {
        private readonly MockObjectManager ObjectManager;
        public MockActionFactory(MockObjectManager manager)
        {
            ObjectManager = manager;
        }

        public AsyncAction MockActionFor(string connectionId, Type actionType)
        {
            if (actionType == typeof(DeleteVIFAction))
                return deleteVifAction(connectionId);
            if (actionType == typeof(AddRemoveRolesAction))
                return addRemoveRolesAction(connectionId);
            if (actionType == typeof(GpuAssignAction))
                return gpuAssignAction(connectionId);

            throw new ArgumentException("the type of action provided is not supported");

        }

        private AsyncAction deleteVifAction(string id)
        {
            Mock<VM> vm = ObjectManager.NewXenObject<VM>(id);
            vm.Setup(v => v.power_state).Returns(vm_power_state.Running);
            ObjectManager.MockConnectionFor(id).Setup(c => c.Resolve(It.IsAny<XenRef<VM>>())).Returns(vm.Object);
            return new DeleteVIFAction(ObjectManager.NewXenObject<VIF>(id).Object);
        }

        private AsyncAction addRemoveRolesAction(string id)
        {
                Mock<Subject> subject = ObjectManager.NewXenObject<Subject>(id);
                subject.Setup(s => s.other_config).Returns(new Dictionary<string, string> { { Subject.SUBJECT_DISPLAYNAME_KEY, "myRole" } });
                return new AddRemoveRolesAction(ObjectManager.NewXenObject<Pool>(id).Object, subject.Object, 
                                                new List<Role>{ObjectManager.NewXenObject<Role>(id).Object}, 
                                                new List<Role>{ObjectManager.NewXenObject<Role>(id).Object});
        }

        private AsyncAction gpuAssignAction(string id)
        {
            Mock<GPU_group> group = ObjectManager.NewXenObject<GPU_group>(id);
            Mock<VM> vm = ObjectManager.NewXenObject<VM>(id);
            ObjectManager.MockConnectionFor(id).Setup(c => c.ResolveAll(It.IsAny<List<XenRef<VGPU>>>())).Returns(new List<VGPU>());
            ObjectManager.MockProxyFor(id).Setup(
                p =>
                p.async_vgpu_create(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>(), "0",
                              It.IsAny<object>())).Returns(new Response<string>("ok"));
            return new GpuAssignAction(vm.Object, group.Object, null);
        }
    }
}