using System.Collections.Generic;
using System.Linq;
using LCU.API.Collections.RepoApi.Controllers;
using LCU.API.Collections.RepoApi.Services;
using LCU.Shared.Collections.RepoApiLib.Models;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Moq;
using Xunit;

namespace LCU.API.Collections.RepoApiTests.Controllers
{
    public class CollateralControllerTest
    {
        private readonly Mock<ICollateralService> mockCollateralService;
        private readonly CollateralController controller;
        private readonly Mock<IHttpContextAccessor> mockHttpContextAccessor;

        public CollateralControllerTest()
        {
            mockCollateralService = new Mock<ICollateralService>();
            mockHttpContextAccessor = new Mock<IHttpContextAccessor>();
            controller = new CollateralController(mockCollateralService.Object,
                mockHttpContextAccessor.Object);
        }

        // Get tests
        [Fact]
        public async void Get_OK()
        {
            // arrange
            var collateral = new List<Collateral>
            {
                new Collateral()
                {
                    CollateralId = 1234567,
                    RepoId = 2345678
                }
            };
            mockCollateralService.Setup(x => x.ListAll()).ReturnsAsync(collateral);

            // act
            var result = await controller.Get();
            Assert.NotNull(result);
            var okResult = result as OkObjectResult;

            // assert
            Assert.NotNull(okResult);
            Assert.Equal(200, okResult.StatusCode);

            var okValue = okResult.Value as IEnumerable<Collateral>;
            Assert.NotNull(okValue);
            Assert.True(collateral.SequenceEqual(okValue));
        }

        [Fact]
        public async void GetById_OK()
        {
            // arrange
            var repos = new List<Collateral>
            {
                new Collateral()
                {
                    CollateralId = 1234567,
                    RepoId = 2345678
                }
            };
            mockCollateralService.Setup(x => x.Get(It.IsAny<int>())).ReturnsAsync(repos.First());

            // act
            var result = await controller.GetById(1234567);
            Assert.NotNull(result);
            var okResult = result as OkObjectResult;

            // assert
            Assert.NotNull(okResult);
            Assert.Equal(200, okResult.StatusCode);

            var okValue = okResult.Value as Collateral;
            Assert.NotNull(okValue);
            Assert.Equal(2345678, okValue.RepoId);
        }

        // Post tests
        [Fact]
        public async void Post_OK()
        {
            // arrange
            var postCollateral = new Collateral()
            {
                CollateralId = 1234567,
                RepoId = 2345678
            };

            // act
            var result = await controller.Post(postCollateral);
            Assert.NotNull(result);
            var okResult = result as OkObjectResult;

            // assert
            Assert.NotNull(okResult);
            Assert.Equal(200, okResult.StatusCode);
        }

        [Fact]
        public async void Post_Bad_Request()
        {
            // arrange
            var postCollateral = new Collateral()
            {
                CollateralId = 1234567,
            };
            controller.ModelState.AddModelError("Message", "The message field is required.");

            // act
            var result = await controller.Post(postCollateral);
            Assert.NotNull(result);
            var badRequestResult = result as BadRequestObjectResult;

            // assert
            Assert.NotNull(badRequestResult);
            Assert.Equal(StatusCodes.Status400BadRequest, badRequestResult.StatusCode);
        }
    }
}