<?php
session_start();
require_once $_SERVER['DOCUMENT_ROOT'].'/kngil/bbs/db_conn.php';

header('Content-Type: application/json');

if (!isset($_SESSION['login'])) {
    http_response_code(401);
    echo json_encode(['status' => 'error', 'message' => '로그인이 필요합니다.']);
    exit;
}

if (empty($_SESSION['mypage_verified'])) {
    http_response_code(403);
    echo json_encode(['status' => 'error', 'message' => '마이페이지 인증이 필요합니다.']);
    exit;
}

$userId = $_SESSION['login']['user_id'];

/* =========================
   페이징 파라미터
========================= */
$page     = max(1, intval($_GET['page'] ?? 1));
$pageSize = 5;
$offset   = ($page - 1) * $pageSize;

try {

    /* =========================
       1. 내 정보
    ========================= */
    $stmt = $pdo->prepare("SELECT * FROM kngil.sp_users_my_r(:user_id)");
    $stmt->execute([':user_id' => $userId]);
    $user = $stmt->fetch(PDO::FETCH_ASSOC);

    if (!$user) {
        echo json_encode(['status' => 'error', 'message' => '사용자 정보 없음']);
        exit;
    }

    /* =========================
       2. 전체 건수
    ========================= */
    $cntStmt = $pdo->prepare("
        SELECT COUNT(*) 
        FROM kngil.use_history 
        WHERE user_id = :user_id
    ");
    $cntStmt->execute([':user_id' => $userId]);
    $totalCount = (int)$cntStmt->fetchColumn();

    $totalPages = (int)ceil($totalCount / $pageSize);

    /* =========================
       3. 현재 페이지 데이터
    ========================= */
    $histStmt = $pdo->prepare("
        SELECT *
        FROM kngil.sp_users_my_history(:user_id)
        OFFSET :offset
        LIMIT :limit
    ");
    $histStmt->bindValue(':user_id', $userId, PDO::PARAM_STR);
    $histStmt->bindValue(':offset', $offset, PDO::PARAM_INT);
    $histStmt->bindValue(':limit', $pageSize, PDO::PARAM_INT);
    $histStmt->execute();

    $history = $histStmt->fetchAll(PDO::FETCH_ASSOC);

    echo json_encode([
        'status'      => 'success',
        'user'        => $user,
        'history'     => $history,
        'pagination'  => [
            'page'        => $page,
            'pageSize'    => $pageSize,
            'totalCount' => $totalCount,
            'totalPages' => $totalPages
        ]
    ]);

} catch (Exception $e) {
    http_response_code(500);
    echo json_encode([
        'status' => 'error',
        'message' => '서버 오류',
        'detail' => $e->getMessage()
    ]);
}