<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Mail\ContactInquiryReplyMail;
use App\Models\Communication;
use App\Models\CommunicationReply;
use App\Services\DatabaseSchemaHelper;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Mail;
use Illuminate\View\View;

class CommunicationController extends Controller
{
    /**
     * Display a listing of all customer communications / inquiries.
     */
    public function index(Request $request): View
    {
        DatabaseSchemaHelper::ensureCommunicationsTables();

        $query = Communication::with(['user', 'order', 'replies'])->latest();

        // Status filter
        if ($request->filled('status') && $request->input('status') !== 'all') {
            $query->where('status', $request->input('status'));
        }

        // Search query
        if ($request->filled('q')) {
            $search = trim($request->input('q'));
            $query->where(function ($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                    ->orWhere('email', 'like', "%{$search}%")
                    ->orWhere('subject', 'like', "%{$search}%")
                    ->orWhere('message', 'like', "%{$search}%");
            });
        }

        $communications = $query->paginate(20)->withQueryString();

        $counts = [
            'all' => Communication::count(),
            'new' => Communication::where('status', 'new')->count(),
            'in_progress' => Communication::where('status', 'in_progress')->count(),
            'resolved' => Communication::where('status', 'resolved')->count(),
            'closed' => Communication::where('status', 'closed')->count(),
        ];

        return view('admin.communications.index', [
            'communications' => $communications,
            'counts' => $counts,
            'currentStatus' => $request->input('status', 'all'),
            'search' => $request->input('q', ''),
        ]);
    }

    /**
     * Display the specified communication thread.
     */
    public function show(Communication $communication): View
    {
        $communication->load(['user.orders', 'order.items', 'replies.user']);

        // Mark as in_progress if still new when viewed by admin
        if ($communication->status === 'new') {
            $communication->update(['status' => 'in_progress']);
        }

        return view('admin.communications.show', [
            'communication' => $communication,
        ]);
    }

    /**
     * Update the status and/or admin notes for this communication.
     */
    public function updateStatus(Request $request, Communication $communication): RedirectResponse
    {
        $validated = $request->validate([
            'status' => 'required|string|in:new,in_progress,resolved,closed',
            'admin_notes' => 'nullable|string|max:5000',
        ]);

        $communication->update($validated);

        return back()->with('success', 'Status van het bericht is bijgewerkt.');
    }

    /**
     * Send a reply to the customer from the admin dashboard.
     */
    public function sendReply(Request $request, Communication $communication): RedirectResponse
    {
        $validated = $request->validate([
            'message' => 'required|string|min:5|max:5000',
        ], [
            'message.required' => 'Vul alstublieft een antwoordbericht in.',
            'message.min' => 'Het antwoordbericht moet minimaal 5 tekens bevatten.',
        ]);

        $reply = CommunicationReply::create([
            'communication_id' => $communication->id,
            'user_id' => Auth::id(),
            'is_admin_reply' => true,
            'message' => trim($validated['message']),
        ]);

        $communication->update([
            'status' => 'resolved',
            'last_replied_at' => now(),
        ]);

        // Send email to customer from info@jouwdriedee.nl
        try {
            Mail::to($communication->email)->send(new ContactInquiryReplyMail($communication, $reply));
        } catch (\Throwable $e) {
            Log::error('Fout bij verzenden van admin reactie naar klant: '.$e->getMessage(), [
                'communication_id' => $communication->id,
                'email' => $communication->email,
            ]);

            return back()->with('warning', 'Het antwoord is opgeslagen in de database, maar er trad een fout op bij het verzenden van de e-mail: '.$e->getMessage());
        }

        return back()->with('success', 'Jouw antwoord is verzonden naar '.$communication->email.' en toegevoegd aan het communicatiedossier.');
    }

    /**
     * Remove the specified communication from storage.
     */
    public function destroy(Communication $communication): RedirectResponse
    {
        $communication->delete();

        return redirect()->route('admin.communications.index')->with('success', 'Klantbericht is verwijderd.');
    }
}