using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Xunit;
using Landmark.OLA.Models.Assets;
using Landmark.OLA.Models.Assets.Enums;
using Landmark.OLA.Models.HomeMortgageDisclosureAct;
using Landmark.OLA.Models.Individuals;
using Landmark.OLA.Models.Individuals.Enums;
using Landmark.OLA.Models.Loan;
using Landmark.OLA.Models.Loan.Enums;
using Landmark.OLA.Models.Loan.Validators;

namespace Landmark.OLA.Tests.Loan.Validators
{
    public class LoanApplicationValidatorTest
    {

        private List<LoanApplication> validTestApplications = [
              new LoanApplication
            {
                LoanType = LoanType.CC_CashBack,
                PrimaryContactMethod = "1234567890",
                Purpose = LoanPurpose.Purpose.Other,
                RequestedAmount = 5000,
                PrimaryBorrower = new Individual(),
            },          
              new LoanApplication
            {
                LoanType = LoanType.EQ_Mtg_Refi_Express,
                PrimaryContactMethod = "1234567890",
                Purpose = LoanPurpose.Purpose.Home_Refinance,
                TermLengthInMonths = 144,
                RequestedAmount = 10000,
                PrimaryBorrower = new Individual(new Hmda
                {
                    Ethnicities = [Ethnicity.NotProvided],
                    Races = [Race.NotProvided],
                    Sexes = [Sex.NotProvided],
                }),
                RealEstate = new RealEstate
                {
                    //This is valid from a business perspective. Model Validation would flag the empty object.
                }
            }
        ];

        private List<LoanApplication> invalidTestApplications = [
          
             new LoanApplication
            {
                LoanType = LoanType.V_Vehicle,
                Purpose = LoanPurpose.Purpose.Purchase,
                TermLengthInMonths = 36,
                RequestedAmount = 5000,
                PrimaryBorrower = new Individual(),
                Vehicle = new Vehicle
                {
                    Type = VehicleType.Automobile,
                }
            },                   
              new LoanApplication
            {
                LoanType = LoanType.EQ_Mtg_Refi_Express,
                Purpose = LoanPurpose.Purpose.Home_Refinance,
                TermLengthInMonths = 144,
                RequestedAmount = 5000,
                PrimaryBorrower = new Individual(),
            }             
        ];

        [Fact]
        public void IsValidTermLengthTest()
        {
            var validator = new LoanApplicationValidator();

            using (StreamReader file = File.OpenText("TestData" + System.IO.Path.DirectorySeparatorChar +
                "json" + System.IO.Path.DirectorySeparatorChar + "TestValidatorLoans.json")) 
            using (JsonTextReader reader = new JsonTextReader(file))
            {
                JObject o2 = (JObject)JToken.ReadFrom(reader);
                JArray a = (JArray)o2["validLoans"];
                IList<LoanApplication> validTestApps = a.ToObject<IList<LoanApplication>>();
                foreach (var loan in validTestApps)
                {
                    Assert.True(validator.Validate(loan).IsValid);
                }
            }
           
            foreach ( var loan in validTestApplications )
            {              
                Assert.True(validator.Validate(loan).IsValid);
            }

            foreach (var loan in invalidTestApplications)
            {
                Assert.False(validator.Validate(loan).IsValid);
            }

        }

        [Fact]
        public void GetSignatureTermValidityTest()
        {

        }

        [Fact]
        public void GetMfdHomeAndRvTermValidityTest()
        {

        }

        [Fact]
        public void GetVehicleTermValidityTest()
        {
            _ = new LoanApplicationValidator();

            using StreamReader file = File.OpenText("TestData" + Path.DirectorySeparatorChar +
                "json" + Path.DirectorySeparatorChar + "TestVehicleTermValidity.json");
            using JsonTextReader reader = new(file);
            JObject allData = (JObject)JToken.ReadFrom(reader);
            JArray vehicles = (JArray)allData["vehicles"];
            IList<Vehicle> validTestVehicles = vehicles.ToObject<IList<Vehicle>>();
            foreach (var vehicle in validTestVehicles)
            {
                List<int> termList = LoanApplicationValidator.GetVehicleTermList(vehicle);
                Assert.NotNull(termList);
                Assert.NotEmpty(termList);
            }
        }

        [Fact]
        public void GetBoatTermValidityTest()
        {

        }

        [Fact]
        public void GetPowersportTermValidityTest()
        {

        }

    }
}