using System;

using Fab2ApprovalSystem.DMO;
using Fab2ApprovalSystem.Models;

using Microsoft.AspNetCore.Mvc.Testing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;

namespace Fab2ApprovalTests.General;

[TestClass]
public class CorrectiveActionTests {

#pragma warning disable CS8618

    private static ILogger? _Logger;
    private static TestContext _TestContext;
    private static WebApplicationFactory<Fab2ApprovalMKLink.Program> _WebApplicationFactory;

#pragma warning restore

    private static DateTime? SetD3DueDate(int cANo) => throw new NotImplementedException();
    private static DateTime? SetD5D7DueDate(int cANo) => throw new NotImplementedException();
    private static void NotifyApprovers(int cANo, int v) => throw new NotImplementedException();
    private static void NotifySectionApprover(int cANo, int qAID, string sectionApproval) => throw new NotImplementedException();
    private static void NotifyAssignee(int cANo, int d1AssigneeID, string v, DateTime? d3DueDate, DateTime? d5D7DueDate) => throw new NotImplementedException();

    public static void SetGlobalVars(ILogger? logger, AppSettings appSettings) {
        logger?.LogDebug("Starting to set Fab2ApprovalSystem.Misc.GlobalVars");
        Fab2ApprovalSystem.Misc.GlobalVars.AppSettings = appSettings;
        Fab2ApprovalSystem.Misc.GlobalVars.AttachmentUrl = appSettings.AttachmentUrl is null ? string.Empty : appSettings.AttachmentUrl;
        Fab2ApprovalSystem.Misc.GlobalVars.CA_BlankFormsLocation = appSettings.CABlankFormsLocation;
        Fab2ApprovalSystem.Misc.GlobalVars.DBConnection = appSettings.DBConnection;
        Fab2ApprovalSystem.Misc.GlobalVars.DB_CONNECTION_STRING = appSettings.DBConnectionString;
        Fab2ApprovalSystem.Misc.GlobalVars.hostURL = appSettings.HostURL;
        Fab2ApprovalSystem.Misc.GlobalVars.IS_INFINEON_DOMAIN = appSettings.IsInfineonDomain;
        Fab2ApprovalSystem.Misc.GlobalVars.MesaTemplateFiles = appSettings.MesaTemplateFiles;
        Fab2ApprovalSystem.Misc.GlobalVars.NDriveURL = appSettings.NDriveURL;
        Fab2ApprovalSystem.Misc.GlobalVars.SENDER_EMAIL = appSettings.SenderEmail;
        Fab2ApprovalSystem.Misc.GlobalVars.USER_ID = appSettings.UserId;
        Fab2ApprovalSystem.Misc.GlobalVars.USER_ISADMIN = appSettings.UserIsAdmin;
        Fab2ApprovalSystem.Misc.GlobalVars.WSR_URL = appSettings.WSR_URL;
        logger?.LogDebug("Finished setting Fab2ApprovalSystem.Misc.GlobalVars");
    }

    [ClassInitialize]
    public static void ClassInitAsync(TestContext testContext) {
        _TestContext = testContext;
        _WebApplicationFactory = new WebApplicationFactory<Fab2ApprovalMKLink.Program>();
        IServiceProvider serviceProvider = _WebApplicationFactory.Services.CreateScope().ServiceProvider;
        _Logger = serviceProvider.GetRequiredService<ILogger<Fab2ApprovalMKLink.Program>>();
    }

    private static void NonThrowTryCatch() {
        try { throw new Exception(); } catch (Exception) { }
    }

    private static void Edit(int currentUserId, CorrectiveActionDMO caDMO, CorrectiveAction model) {
        CorrectiveAction caPrevious = caDMO.GetCAItemReadOnly(model.CANo, currentUserId);
        if (currentUserId != caPrevious.D1AssigneeID && currentUserId != caPrevious.QAID && currentUserId != caPrevious.RequestorID)
            throw new Exception("User is not authorized to save the CA.");
        try {
            if (model.TriggerApproval) {
                //model.FollowUpDate = DateTime.Now.AddMonths(6);
            }
            caDMO.UpdateCorrectiveAction(model);
            if ((model.D1AssigneeID != model.CurrentD1AssigneeID && model.CASubmitted) || (model.CASubmitted && !caPrevious.CASubmitted)) {
                //Set Due Dates here:
                DateTime? D3DueDate = null;
                DateTime? D5D7DueDate = null;
                if (model.CAType != "D0") {
                    D3DueDate = SetD3DueDate(model.CANo);
                    if (model.CAType != "D3") {
                        D5D7DueDate = SetD5D7DueDate(model.CANo);
                    }
                }
                NotifyAssignee(model.CANo, model.D1AssigneeID, "CorrectiveActionAssignee.txt", D3DueDate, D5D7DueDate);
            }
            if (model.TriggerSectionApproval) {
                if (model.SectionApproval == "D5D6D7Validation") {
                    caDMO.StartSectionApproval(model.CANo, model.RequestorID, model.SectionApproval);
                    throw new Exception("Successfully Saved...Validation initiated!");
                }
                caDMO.StartSectionApproval(model.CANo, model.QAID, model.SectionApproval);
                caDMO.StartSectionApproval(model.CANo, model.RequestorID, model.SectionApproval);
                NotifySectionApprover(model.CANo, model.QAID, model.SectionApproval);
                NotifySectionApprover(model.CANo, model.RequestorID, model.SectionApproval);
                //NotifyApprovers(model.CANo, 1);
                throw new Exception("Successfully Saved...Approval initiated!");
            }
            if (model.TriggerApproval) {
                _ = caDMO.StartApproval(model.CANo, currentUserId, model.WorkFlowNumber);
                NotifyApprovers(model.CANo, 1);
                throw new Exception("Successfully Saved...Approval initiated!");
            }
        } catch (Exception ex) {
            throw new Exception(ex.Message);
        }
    }

    internal static void TestCorrectiveAction(ILogger? logger, AppSettings appSettings, int caNo) {
        SetGlobalVars(logger, appSettings);
        CorrectiveAction ca;
        CorrectiveActionDMO caDMO = new();
        ca = caDMO.GetCAItemReadOnly(caNo, appSettings.UserId);
        if (ca is null)
            throw new Exception($"{nameof(ca)}");
        ca = caDMO.GetCAItem(caNo, appSettings.UserId);
        if (ca is null)
            throw new Exception($"{nameof(ca)}");
        Edit(appSettings.UserId, caDMO, ca);
    }

#if Release
    [Ignore]
#endif
    [DataTestMethod]
    [DataRow(295)]
    public void TestCorrectiveActionIsAttachedOnly(int caNo) {
        _Logger?.LogInformation("Starting Web Application");
        IServiceProvider? serviceProvider = _WebApplicationFactory?.Services.CreateScope().ServiceProvider;
        AppSettings? appSettings = serviceProvider?.GetRequiredService<AppSettings>();
        Assert.IsTrue(appSettings is not null);
        if (System.Diagnostics.Debugger.IsAttached)
            TestCorrectiveAction(_Logger, appSettings, caNo);
        _Logger?.LogInformation("{TestName} completed", _TestContext?.TestName);
        NonThrowTryCatch();
    }

}