<?php
include_once('../_common_con.php'); // 💡 [수정] 컴포넌트용 공통 파일 포함
header('Content-Type: application/json');

try {
    // 입력 데이터 정리
    $reservation_data = [
        'customer_name'      => trim($_POST['customer_name'] ?? ''),
        'customer_phone'     => trim($_POST['customer_phone'] ?? ''),
        'customer_email'     => trim($_POST['customer_email'] ?? ''),
        'reservation_date'   => trim($_POST['reservation_date'] ?? ''),
        'reservation_time'   => trim($_POST['reservation_time'] ?? ''),
        'consultation_type'  => trim($_POST['consultation_type'] ?? 'onsite'),
        'request_memo'       => trim($_POST['customer_request'] ?? ''),
        'payment_amount'     => (int)($_POST['payment_amount'] ?? 0),
        'status'             => 'payment_pending'
    ];

    // 필수 항목 유효성 검사
    if (empty($reservation_data['customer_name']) || empty($reservation_data['customer_phone']) || empty($reservation_data['reservation_date']) || empty($reservation_data['reservation_time'])) {
        throw new Exception('필수 예약 정보가 누락되었습니다.');
    }

    // 예약 가능 여부 재확인 (서버 측 검증)
    $sql_check = "SELECT COUNT(*) as cnt FROM consultant_schedule 
                  WHERE specific_date = '{$reservation_data['reservation_date']}' 
                  AND start_time = '{$reservation_data['reservation_time']}' 
                  AND is_available = 1";
    $schedule = sql_fetch($sql_check);

    if (!$schedule || $schedule['cnt'] == 0) {
        throw new Exception('선택하신 시간은 예약이 불가능합니다. 다른 시간을 선택해주세요.');
    }

    // 예약 생성
    $sql = "INSERT INTO consultant_reservations 
            (customer_name, customer_phone, customer_email, reservation_date, reservation_time, consultation_type, request_memo, payment_amount, status, created_at, updated_at) 
            VALUES 
            (
                '" . sql_real_escape_string($reservation_data['customer_name']) . "',
                '" . sql_real_escape_string($reservation_data['customer_phone']) . "',
                '" . sql_real_escape_string($reservation_data['customer_email']) . "',
                '" . sql_real_escape_string($reservation_data['reservation_date']) . "',
                '" . sql_real_escape_string($reservation_data['reservation_time']) . "',
                '" . sql_real_escape_string($reservation_data['consultation_type']) . "',
                '" . sql_real_escape_string($reservation_data['request_memo']) . "',
                '{$reservation_data['payment_amount']}',
                '{$reservation_data['status']}',
                NOW(),
                NOW()
            )";

    if (sql_query($sql)) {
        $reservation_id = sql_insert_id();
        consultant_log("새 예약 신청: ID {$reservation_id} (고객: {$reservation_data['customer_name']})");

        // TODO: 고객 및 관리자에게 알림 발송 로직 추가

        echo json_encode(['success' => true, 'message' => '예약 신청이 완료되었습니다.']);
    } else {
        throw new Exception('데이터베이스 저장 중 오류가 발생했습니다.');
    }

} catch (Exception $e) {
    consultant_log("예약 신청 오류: " . $e->getMessage(), 'error');
    echo json_encode(['success' => false, 'message' => $e->getMessage()]);
}
?>