<?php
header('Content-Type: application/json');
require_once 'db/config.php';

$token = $_GET['token'] ?? '';
$data = json_decode(file_get_contents('php://input'), true);
$content = $data['content'] ?? '';
$username = $data['username'] ?? null;

if (empty($token)) {
    http_response_code(401);
    echo json_encode(['success' => false, 'error' => 'Missing token']);
    exit;
}

$stmt = db()->prepare("SELECT * FROM webhooks WHERE token = ?");
$stmt->execute([$token]);
$webhook = $stmt->fetch();

if (!$webhook) {
    http_response_code(401);
    echo json_encode(['success' => false, 'error' => 'Invalid token']);
    exit;
}

if (empty($content)) {
    http_response_code(400);
    echo json_encode(['success' => false, 'error' => 'Empty content']);
    exit;
}

try {
    // We'll use a special System user or a placeholder user_id for webhooks
    // Or we could create a bot user for each webhook.
    // For now, let's assume we use user_id 1 (System) but override the name if provided.
    
    $stmt = db()->prepare("INSERT INTO messages (channel_id, user_id, content) VALUES (?, ?, ?)");
    $stmt->execute([$webhook['channel_id'], 1, $content]);
    
    echo json_encode(['success' => true]);
} catch (Exception $e) {
    http_response_code(500);
    echo json_encode(['success' => false, 'error' => $e->getMessage()]);
}