using System.Collections.Generic;
using LCU.API.Internal.Operations.IncentiveApi.Services;
using LCU.Library.Internal.IncentiveApiModels.Entities;
using LCU.Library.Internal.IncentiveApiModels.Enums;
using Microsoft.AspNetCore.Mvc;
using Moq;
using NUnit.Framework;
using System;
using System.Threading.Tasks;
using LCU.API.Internal.Operations.IncentiveApi.Controllers;
using LCU.API.Internal.Operations.IncentiveApi.Models.DataTransfer;
using LCU.API.Internal.Operations.IncentiveApi.Exceptions;

namespace Application.UnitTests.Controllers
{
    public class UserAssignmentControllerTest
    {
        private UserAssignmentController _controller;
        private Mock<IUserAssignmentService> _mockUserAssignmentService;

        [SetUp]
        public void Setup()
        {
            _mockUserAssignmentService = new Mock<IUserAssignmentService>();
            _controller = new UserAssignmentController(_mockUserAssignmentService.Object);
        }

        [Test]
        public async Task GetAllUserAssignments_OK()
        {
            _mockUserAssignmentService.Setup(service => service.GetAllUserAssignmentsAsync())
                .ReturnsAsync(new List<UserAssignment>());

            var result = await _controller.GetAllUserAssignments();
            Assert.NotNull(result);

            var okResult = result as OkObjectResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(200, okResult.StatusCode);
        }

        [Test]
        public async Task GetAllUserAssignments_Exception()
        {
            {
                _mockUserAssignmentService.Setup(service => service.GetAllUserAssignmentsAsync())
                    .ThrowsAsync(new Exception("Exception Message"));

                var result = await _controller.GetAllUserAssignments();
                Assert.NotNull(result);

                var statusRes = result as StatusCodeResult;
                Assert.NotNull(statusRes);
                Assert.AreEqual(500, statusRes.StatusCode);
            }
        }

        [Test]
        public async Task SetRegionalManager_OK()
        {

            var assignment = new UserAssignmentRequest
            {
                EmployeeId = "123",
                Key = "NORTH",
                Type = AssignmentType.RegionalManager
            };

            _mockUserAssignmentService.Setup(service => service.SetRegionalManager(It.IsAny<UserAssignmentRequest>()))
                .ReturnsAsync(new UserAssignment());

            var result = await _controller.SetRegionalManager(assignment);
            Assert.NotNull(result);

            var okResult = result as OkResult;
            Assert.NotNull(okResult);
            Assert.AreEqual(200, okResult.StatusCode);
        }

        [Test]
        public async Task SetRegionalManager_BadUserAssignmentException()
        {
            var assignment = new UserAssignmentRequest();
            _mockUserAssignmentService.Setup(service => service.SetRegionalManager(assignment))
                .ThrowsAsync(new BadUserAssignmentException("Exception Message"));

            var result = await _controller.SetRegionalManager(assignment);
            Assert.NotNull(result);

            var badRequestRes = result as BadRequestObjectResult;
            Assert.NotNull(badRequestRes);
            Assert.AreEqual(400, badRequestRes.StatusCode);
            Assert.AreEqual("Exception Message", badRequestRes.Value);
        }

        [Test]
        public async Task SetRegionalManager_Exception()
        {
            var assignment = new UserAssignmentRequest();
            _mockUserAssignmentService.Setup(service => service.SetRegionalManager(assignment))
                .ThrowsAsync(new Exception("Exception Message"));

            var result = await _controller.SetRegionalManager(assignment);
            Assert.NotNull(result);

            var statusRes = result as StatusCodeResult;
            Assert.NotNull(statusRes);
            Assert.AreEqual(500, statusRes.StatusCode);
        }
    }
}