using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using PowderCoating.Core.Entities;
using PowderCoating.Core.Interfaces;
using PowderCoating.Shared.Constants;
using PowderCoating.Web.ViewModels.Platform;

namespace PowderCoating.Web.Controllers;

[Authorize(Policy = AppConstants.Policies.SuperAdminOnly)]
public class OnboardingProgressController : Controller
{
    private readonly IUnitOfWork _unitOfWork;
    private readonly UserManager<ApplicationUser> _userManager;

    public OnboardingProgressController(IUnitOfWork unitOfWork, UserManager<ApplicationUser> userManager)
    {
        _unitOfWork = unitOfWork;
        _userManager = userManager;
    }

    /// <summary>
    /// Shows onboarding and activation status for every tenant company. SuperAdmin-only.
    /// Reads <c>CompanyPreferences</c> fields written by the setup wizard, guided activation,
    /// and the jobs/quotes/invoices controllers to give a cross-tenant activation funnel view.
    /// </summary>
    public async Task<IActionResult> Index()
    {
        var companies = (await _unitOfWork.Companies.GetAllAsync(
                ignoreQueryFilters: true,
                c => c.Preferences!))
            .Where(c => !c.IsDeleted)
            .OrderBy(c => c.CompanyName)
            .ToList();

        var rows = companies.Select(c => BuildRow(c)).ToList();

        return View(new OnboardingProgressIndexViewModel { Rows = rows });
    }

    private static OnboardingProgressRowViewModel BuildRow(Company company)
    {
        var prefs = company.Preferences;
        var wizardDone = prefs?.SetupWizardCompleted ?? false;

        // Mirror the same 6-step logic used in DashboardController.BuildShopProgressWidgetAsync
        // Steps: first job/quote, status history (unknown here — omit), first invoice,
        // team size (unknown here — omit), customized lookups (unknown — omit), payment defaults.
        // We track the 3 date-stamped milestones we can derive from prefs alone.
        int steps = 0;
        if (prefs?.FirstJobCreatedAt.HasValue == true || prefs?.FirstQuoteCreatedAt.HasValue == true) steps++;
        if (prefs?.FirstInvoiceCreatedAt.HasValue == true) steps++;
        if (prefs?.FirstWorkflowCompletedAt.HasValue == true) steps++;
        const int total = 3;

        OnboardingStatus status;
        if (!wizardDone)
            status = OnboardingStatus.NotStarted;
        else if (prefs?.FirstWorkflowCompletedAt.HasValue == true && prefs.GuidedActivationDismissedAt.HasValue)
            status = OnboardingStatus.Dismissed;
        else if (prefs?.FirstWorkflowCompletedAt.HasValue == true)
            status = OnboardingStatus.Complete;
        else if (steps > 0)
            status = OnboardingStatus.InProgress;
        else
            status = OnboardingStatus.NotStarted;

        return new OnboardingProgressRowViewModel
        {
            CompanyId                = company.Id,
            CompanyName              = company.CompanyName ?? "Unknown",
            WizardCompleted          = wizardDone,
            OnboardingPath           = prefs?.OnboardingPath,
            StepsCompleted           = steps,
            TotalSteps               = total,
            FirstJobCreatedAt        = prefs?.FirstJobCreatedAt,
            FirstQuoteCreatedAt      = prefs?.FirstQuoteCreatedAt,
            FirstInvoiceCreatedAt    = prefs?.FirstInvoiceCreatedAt,
            FirstWorkflowCompletedAt = prefs?.FirstWorkflowCompletedAt,
            GuidedActivationDismissedAt = prefs?.GuidedActivationDismissedAt,
            Status                   = status
        };
    }
}