<?php

namespace App\Http\Controllers;

use App\Http\Requests\ProfileUpdateRequest;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Redirect;
use Illuminate\View\View;

class ProfileController extends Controller
{
    /**
     * Display the user's profile form.
     */
    public function edit(Request $request): View
    {
        return view('profile.edit', [
            'user' => $request->user(),
            'activeServices' => \App\Models\TrustService::active()->get(),
        ]);
    }

    /**
     * Update the user's profile information.
     */
    public function update(ProfileUpdateRequest $request): RedirectResponse
    {
        $request->user()->fill($request->validated());

        if ($request->user()->isDirty('email')) {
            $request->user()->email_verified_at = null;
        }

        $request->user()->save();

        return Redirect::route('profile.edit')->with('status', 'profile-updated');
    }

    /**
     * Delete the user's account.
     */
    public function destroy(Request $request): RedirectResponse
    {
        $request->validateWithBag('userDeletion', [
            'password' => ['required', 'current_password'],
        ]);

        $user = $request->user();

        // Check for pending transactions that would prevent deletion
        $pendingTransactions = $user->transactions()
            ->whereIn('status', ['pending', 'paid', 'shipped', 'in_progress'])
            ->count();

        if ($pendingTransactions > 0) {
            return Redirect::route('profile.edit')
                ->withErrors(['userDeletion' => 'You cannot delete your account while you have pending transactions. Please complete or cancel all transactions first. If you have a special circumstance, <a href="' . route('messages.contact-admin') . '" class="text-blue-600 underline">contact support</a> for assistance.']);
        }

        // Check for active items in the buy queue (people waiting to buy their items)
        $activeQueueItems = $user->items()
            ->whereHas('buyQueue', function($query) {
                $query->where('status', 'active');
            })
            ->count();

        if ($activeQueueItems > 0) {
            return Redirect::route('profile.edit')
                ->withErrors(['userDeletion' => 'You cannot delete your account while people are in queue for your items. Please resolve all active listings first. If you have a special circumstance, <a href="' . route('messages.contact-admin') . '" class="text-blue-600 underline">contact support</a> for assistance.']);
        }

        // Log out the user
        Auth::logout();

        // Soft delete the user (preserves history for admins)
        $user->delete();

        $request->session()->invalidate();
        $request->session()->regenerateToken();

        return Redirect::to('/')->with('status', 'Your account has been deleted successfully.');
    }

    /**
     * Update the user's payment methods.
     */
    public function updatePaymentMethods(Request $request): RedirectResponse
    {
        $validated = $request->validate([
            'payment_methods' => 'array',
            'payment_methods.*.enabled' => 'boolean',
            'payment_methods.*.address' => 'nullable|string|max:500',
        ]);

        $paymentMethods = [];
        
        if (isset($validated['payment_methods'])) {
            foreach ($validated['payment_methods'] as $method => $data) {
                $enabled = isset($data['enabled']) && $data['enabled'];
                $address = $data['address'] ?? '';
                
                // Only store if enabled and has an address
                if ($enabled && !empty(trim($address))) {
                    $paymentMethods[$method] = [
                        'enabled' => true,
                        'address' => trim($address)
                    ];
                }
            }
        }

        $request->user()->update([
            'payment_methods' => $paymentMethods
        ]);

        return Redirect::route('profile.edit')->with('status', 'payment-methods-updated');
    }

    /**
     * Update the user's vacation mode settings.
     */
    public function updateVacationMode(Request $request): RedirectResponse
    {
        $validated = $request->validate([
            'is_on_vacation' => 'boolean',
            'vacation_message' => 'nullable|string|max:1000',
            'vacation_start_date' => 'nullable|date|after_or_equal:today',
            'vacation_end_date' => 'nullable|date|after:vacation_start_date',
        ]);

        // Convert checkbox to boolean
        $isOnVacation = $request->has('is_on_vacation') && $request->boolean('is_on_vacation');

        $updateData = [
            'is_on_vacation' => $isOnVacation,
            'vacation_message' => $validated['vacation_message'] ?? null,
            'vacation_start_date' => $validated['vacation_start_date'] ?? null,
            'vacation_end_date' => $validated['vacation_end_date'] ?? null,
        ];

        // If vacation mode is disabled, clear the dates and message
        if (!$isOnVacation) {
            $updateData['vacation_message'] = null;
            $updateData['vacation_start_date'] = null;
            $updateData['vacation_end_date'] = null;
        }

        $request->user()->update($updateData);

        return Redirect::route('profile.edit')->with('status', 'vacation-mode-updated');
    }
}
