<?php
/**
 * VR票务插件 - C端票夹API控制器
 *
 * 路由机制（PluginsService::PluginsApiCall）:
 *   URL: ?s=api/plugins/index&pluginsname=vr_ticket&pluginscontrol=ticket&pluginsaction=list
 *   → pluginsname=vr_ticket, pluginscontrol=ticket, pluginsaction=list
 *   → class = \app\plugins\vr_ticket\api\Ticket (ucfirst('ticket') = 'Ticket')
 *   → method = ucfirst('list') = 'list'
 *   → app/plugins/vr_ticket/api/Ticket.php::list()  ✓
 *
 * @package vr_ticket\api
 */

namespace app\plugins\vr_ticket\api;

use app\plugins\vr_ticket\service\WalletService;

/**
 * C端票夹 API
 */
class Ticket
{
    /**
     * 获取当前登录用户ID
     *
     * ShopXO 使用 X-Token 或 Authorization 头
     * @return int|null
     */
    private static function getUserId()
    {
        // 方式1：从 header 获取（推荐）
        $token = request()->header('X-Token') ?: request()->header('Authorization', '');
        if (!empty($token)) {
            $token = str_replace('Bearer ', '', $token);
            $user = self::parseToken($token);
            if (!empty($user['id'])) {
                return intval($user['id']);
            }
        }

        // 方式2：从 session 获取
        $userId = session('user_id');
        if (!empty($userId)) {
            return intval($userId);
        }

        return null;
    }

    /**
     * 解析 Token（JWT格式）
     *
     * @param string $token
     * @return array
     */
    private static function parseToken(string $token): array
    {
        $parts = explode('.', $token);
        if (count($parts) !== 3) {
            return [];
        }

        $payload = base64_decode(strtr($parts[1], '-_', '+/'));
        if ($payload === false) {
            return [];
        }

        $data = json_decode($payload, true);
        return is_array($data) ? $data : [];
    }

    /**
     * 返回未登录错误
     *
     * @return Json
     */
    private static function unauthorized(string $msg = '请先登录'): Json
    {
        return json([
            'code' => 401,
            'msg'  => $msg,
            'data' => [],
        ]);
    }

    /**
     * 返回成功响应
     *
     * @param mixed $data
     * @param string $msg
     * @return Json
     */
    private static function success($data = [], string $msg = 'success'): Json
    {
        return json([
            'code' => 0,
            'msg'  => $msg,
            'data' => $data,
        ]);
    }

    /**
     * 返回错误响应
     *
     * @param string $msg
     * @param int $code
     * @return Json
     */
    private static function error(string $msg = '请求失败', int $code = -1): Json
    {
        return json([
            'code' => $code,
            'msg'  => $msg,
            'data' => [],
        ]);
    }

    /**
     * 获取用户票列表
     *
     * GET ?s=api/plugins/index&pluginsname=vr_ticket&pluginscontrol=ticket&pluginsaction=list
     *
     * @return Json
     */
    public function list(): Json
    {
        $userId = self::getUserId();
        if (empty($userId)) {
            return self::unauthorized();
        }

        try {
            $tickets = WalletService::getUserTickets($userId);

            return self::success([
                'tickets' => $tickets,
                'count'   => count($tickets),
            ]);
        } catch (\Exception $e) {
            return self::error('获取票列表失败: ' . $e->getMessage());
        }
    }

    /**
     * 获取票详情（含 QR payload）
     *
     * GET ?s=api/plugins/index&pluginsname=vr_ticket&pluginscontrol=ticket&pluginsaction=detail&id=X
     *
     * @return Json
     */
    public function detail(): Json
    {
        $userId = self::getUserId();
        if (empty($userId)) {
            return self::unauthorized();
        }

        $ticketId = input('id', 0, 'intval');
        if ($ticketId <= 0) {
            return self::error('参数错误：票ID无效');
        }

        try {
            $ticket = WalletService::getTicketDetail($ticketId, $userId);

            if (empty($ticket)) {
                return self::error('票不存在或无权访问', -404);
            }

            return self::success([
                'ticket' => $ticket,
            ]);
        } catch (\Exception $e) {
            return self::error('获取票详情失败: ' . $e->getMessage());
        }
    }

    /**
     * 强制刷新 QR payload
     *
     * GET ?s=api/plugins/index&pluginsname=vr_ticket&pluginscontrol=ticket&pluginsaction=refreshQr&id=X
     *
     * @return Json
     */
    public function refreshQr(): Json
    {
        $userId = self::getUserId();
        if (empty($userId)) {
            return self::unauthorized();
        }

        $ticketId = input('id', 0, 'intval');
        if ($ticketId <= 0) {
            return self::error('参数错误：票ID无效');
        }

        try {
            $ticket = WalletService::refreshQrPayload($ticketId, $userId);

            if (empty($ticket)) {
                return self::error('票不存在或无权访问', -404);
            }

            return self::success([
                'ticket' => $ticket,
            ]);
        } catch (\Exception $e) {
            return self::error('刷新QR失败: ' . $e->getMessage());
        }
    }
}