<?php

namespace Dashboard\Ticketing\Http\Controllers;

use Dashboard\Ticketing\Models\Ticket;
use Dashboard\Ticketing\Models\TicketMessage;
use Dashboard\Ticketing\Models\TicketingAgentAccess;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Mail;

class TicketMessageController extends Controller
{
    private function isAgent(int $groupId): bool
    {
        return TicketingAgentAccess::where('user_id', Auth::id())
            ->where('group_id', $groupId)
            ->exists();
    }

    public function store(Request $request, Ticket $ticket)
    {
        $user = Auth::user();
        $isAgent = $this->isAgent($ticket->group_id);
        $isSubmitter = $ticket->submitter_id === $user->id;

        if (!$isAgent && !$isSubmitter) {
            abort(403);
        }

        $validated = $request->validate([
            'body' => 'required|string',
            'is_internal' => 'boolean',
        ]);

        // Only agents can post internal notes
        if ($validated['is_internal'] ?? false) {
            if (!$isAgent) {
                abort(403, 'Only agents can post internal notes.');
            }
        }

        $message = TicketMessage::create([
            'ticket_id' => $ticket->id,
            'user_id' => $user->id,
            'body' => $validated['body'],
            'is_internal' => $validated['is_internal'] ?? false,
            'source' => 'web',
        ]);

        // Submitter reply reopens resolved/closed tickets
        if ($isSubmitter && in_array($ticket->status, ['resolved', 'closed'])) {
            $ticket->update(['status' => 'open']);
        }

        // Notify submitter if agent replied (not internal)
        if ($isAgent && !($validated['is_internal'] ?? false)) {
            $this->notifySubmitter($ticket, $message);
        }

        return back()->with('success', 'Message sent.');
    }

    private function notifySubmitter(Ticket $ticket, TicketMessage $message): void
    {
        // Placeholder for email notification
        // In production: Mail::to($submitterEmail)->send(new TicketReplyMail($ticket, $message));
    }
}