<?php
require_once __DIR__ . '/../helpers.php';
runAuth();

global $businessId;

$data = readJsonBody();

if ($businessId <= 0) {
    apiAbort(['OK' => false, 'ERROR' => 'no_business_selected']);
}

$qBiz = queryOne("
    SELECT ID, Name, BeaconShardID, BeaconMajor FROM Businesses WHERE ID = ? LIMIT 1
", [$businessId]);

if (!$qBiz) {
    apiAbort(['OK' => false, 'ERROR' => 'invalid_business', 'MESSAGE' => 'Business not found']);
}

$shardID = (int) ($qBiz['BeaconShardID'] ?? 0);
$major = (int) ($qBiz['BeaconMajor'] ?? 0);

// Auto-allocate shard if needed
if ($shardID <= 0) {
    $qFreeShard = queryOne("
        SELECT bs.ID FROM BeaconShards bs
        WHERE bs.IsActive = 1
          AND bs.ID NOT IN (SELECT BeaconShardID FROM Businesses WHERE BeaconShardID IS NOT NULL)
        ORDER BY bs.ID LIMIT 1
    ", []);

    if (!$qFreeShard) {
        apiAbort(['OK' => false, 'ERROR' => 'no_shards_available', 'MESSAGE' => 'No beacon shards available']);
    }

    $shardID = (int) $qFreeShard['ID'];

    $qMaxMajor = queryOne("
        SELECT COALESCE(MAX(BeaconMajor), 0) AS MaxMajor FROM Businesses WHERE BeaconShardID = ?
    ", [$shardID]);
    $major = (int) $qMaxMajor['MaxMajor'] + 1;

    queryTimed("UPDATE Businesses SET BeaconShardID = ?, BeaconMajor = ? WHERE ID = ?",
        [$shardID, $major, $businessId]);
}

$qShard = queryOne("SELECT UUID FROM BeaconShards WHERE ID = ?", [$shardID]);
$shardUUID = $qShard['UUID'];

// Service point handling
$spName = trim($data['Name'] ?? '');
if ($spName === '') {
    apiAbort(['OK' => false, 'ERROR' => 'missing_name', 'MESSAGE' => 'Service point name is required']);
}

$servicePointID = (int) ($data['ServicePointID'] ?? 0);

if ($servicePointID > 0) {
    $qSP = queryOne("
        SELECT ID, BeaconMinor FROM ServicePoints WHERE ID = ? AND BusinessID = ? LIMIT 1
    ", [$servicePointID, $businessId]);

    if (!$qSP) {
        apiAbort(['OK' => false, 'ERROR' => 'invalid_service_point', 'MESSAGE' => 'Service point not found']);
    }

    $minor = $qSP['BeaconMinor'];
    if ($minor === null) {
        $qMaxMinor = queryOne("
            SELECT COALESCE(MAX(BeaconMinor), 0) AS MaxMinor FROM ServicePoints WHERE BusinessID = ?
        ", [$businessId]);
        $minor = (int) $qMaxMinor['MaxMinor'] + 1;
    }

    queryTimed("UPDATE ServicePoints SET Name = ?, BeaconMinor = ?, IsActive = 1 WHERE ID = ?",
        [$spName, $minor, $servicePointID]);
} else {
    $qMaxMinor = queryOne("
        SELECT COALESCE(MAX(BeaconMinor), 0) AS MaxMinor FROM ServicePoints WHERE BusinessID = ?
    ", [$businessId]);
    $minor = (int) $qMaxMinor['MaxMinor'] + 1;

    queryTimed("
        INSERT INTO ServicePoints (BusinessID, Name, TypeID, IsActive, BeaconMinor, SortOrder)
        VALUES (?, ?, 1, 1, ?, ?)
    ", [$businessId, $spName, $minor, $minor]);

    $servicePointID = (int) lastInsertId();
}

jsonResponse([
    'OK' => true,
    'ERROR' => '',
    'ServicePointID' => $servicePointID,
    'ServicePointName' => $spName,
    'BusinessID' => $businessId,
    'BusinessName' => $qBiz['Name'],
    'ShardID' => $shardID,
    'UUID' => $shardUUID,
    'Major' => $major,
    'Minor' => (int) $minor,
]);