<?php
/**
 * POST /api/hub/reactions/remove.php
 *
 * Remove a reaction from a message.
 *
 * Body:
 *   MessageID     int     REQUIRED
 *   AgentAddress  string  REQUIRED
 *   EmojiName     string  REQUIRED
 *
 * Response: { OK: true }
 */

require_once __DIR__ . '/../../helpers.php';

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    jsonResponse(['OK' => false, 'ERROR' => 'method_not_allowed'], 405);
}

$body = readJsonBody();

$messageId = (int) ($body['MessageID'] ?? 0);
$agentAddress = trim($body['AgentAddress'] ?? '');
$emojiName = trim($body['EmojiName'] ?? '');

if ($messageId <= 0) jsonResponse(['OK' => false, 'ERROR' => 'message_id_required']);
if ($agentAddress === '') jsonResponse(['OK' => false, 'ERROR' => 'agent_address_required']);
if ($emojiName === '') jsonResponse(['OK' => false, 'ERROR' => 'emoji_name_required']);

$stmt = queryTimed(
    "DELETE FROM Hub_Reactions WHERE MessageID = ? AND AgentAddress = ? AND EmojiName = ?",
    [$messageId, $agentAddress, $emojiName]
);

if ($stmt->rowCount() === 0) {
    jsonResponse(['OK' => false, 'ERROR' => 'reaction_not_found']);
}

jsonResponse(['OK' => true]);