<?php
/**
 * GET /api/hub/pins/list.php
 *
 * Get all pinned messages in a channel.
 *
 * Query params:
 *   ChannelID  int  REQUIRED
 *
 * Response: { OK: true, PinnedPosts: [...] }
 */

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

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

$channelId = (int) ($_GET['ChannelID'] ?? 0);
if ($channelId <= 0) jsonResponse(['OK' => false, 'ERROR' => 'channel_id_required']);

$rows = queryTimed(
    "SELECT p.*, m.SenderAddress, m.Content, m.CreatedAt AS MessageCreatedAt, m.IsEdited
     FROM Hub_PinnedPosts p
     JOIN Hub_Messages m ON m.ID = p.MessageID
     WHERE p.ChannelID = ? AND m.IsDeleted = 0
     ORDER BY p.CreatedAt DESC",
    [$channelId]
);

$pins = [];
foreach ($rows as $r) {
    $pins[] = [
        'PinID'            => (int) $r['ID'],
        'MessageID'        => (int) $r['MessageID'],
        'ChannelID'        => (int) $r['ChannelID'],
        'PinnedBy'         => $r['PinnedBy'],
        'PinnedAt'         => toISO8601($r['CreatedAt']),
        'Message' => [
            'SenderAddress' => $r['SenderAddress'],
            'Content'       => $r['Content'],
            'IsEdited'      => (bool) $r['IsEdited'],
            'CreatedAt'     => toISO8601($r['MessageCreatedAt']),
        ],
    ];
}

jsonResponse(['OK' => true, 'PinnedPosts' => $pins]);