<?php

namespace app\index\controller;

use app\common\controller\Frontend;
use app\common\library\Ems as EmsLib;
use app\common\library\Sms as SmsLib;
use app\common\model\AppointmentEmailLog;
use app\common\model\AppointmentRecord;
use app\common\model\AppointmentSmsLog;
use think\facade\Cache;
use think\facade\Db;
use think\facade\Event;
use think\facade\Validate;

class Appointment extends Frontend
{
    protected $noNeedLogin = ['submit'];
    protected $noNeedRight = ['*'];

    protected function frontendCurrentUrl(): string
    {
        $url = (string)$this->request->url(true);
        return function_exists('cms_lang_url') ? cms_lang_url($url) : $url;
    }

    protected function resolveNotifyChannel(string $lang): string
    {
        $lang = strtolower(trim($lang));
        return in_array($lang, ['cn', 'zh-cn', 'zh'], true) ? 'sms' : 'email';
    }

    protected function getTranslatedActivity(int $activityId, string $lang): array
    {
        $lang = strtolower(trim($lang));
        if ($lang === '') {
            $lang = 'cn';
        }

        $query = Db::name('cms_yuyue_data')->where('did', $activityId);
        $row = (clone $query)->where('lang', $lang)->find();
        if (!$row && $lang !== 'cn') {
            $row = (clone $query)->where('lang', 'cn')->find();
        }

        return is_array($row) ? $row : [];
    }

    protected function getTranslatedNotifyContent(array $activity, string $field, string $lang): string
    {
        return trim((string)($activity[$field] ?? ''));
    }

    protected function sendAppointmentEmail(string $email, string $subject, string $content): array
    {
        try {
            $config = get_addon_config('phpmailer');
            if (!$config) {
                return [false, 'NO_CONFIG', '未找到 phpmailer 插件配置'];
            }
            $mailer = new \addons\phpmailer\library\Mailer($config);
            $result = $mailer->to($email)->subject($subject)->message($content, true)->send();
            if ($result) {
                return [true, 'SUCCESS', '邮件发送成功'];
            }
            return [false, 'FAIL', $mailer->getError() ?: '邮件发送失败'];
        } catch (\Throwable $e) {
            return [false, 'EXCEPTION', $e->getMessage()];
        }
    }

    public function submit()
    {
        if (!$this->request->isPost()) {
            $this->error('请求方式错误');
        }

        $activityId = (int)$this->request->post('activity_id/d', 0);
        $mobile = trim((string)$this->request->post('mobile/s', ''));
        $email = trim((string)$this->request->post('email/s', ''));
        $name = trim((string)$this->request->post('name/s', ''));
        $remark = trim((string)$this->request->post('remark/s', ''));
        $sourcePage = trim((string)$this->request->post('source_page/s', $this->frontendCurrentUrl()));
        $lang = strtolower(trim((string)$this->request->post('lang/s', '')));
        if ($lang === '' && function_exists('cms_current_region_lang')) {
            $lang = strtolower(trim((string)cms_current_region_lang('cn')));
        }
        if ($lang === '') {
            $lang = 'cn';
        }
        $notifyChannel = $this->resolveNotifyChannel($lang);

        if ($activityId <= 0) {
            $this->error('预约活动信息缺失');
        }
        if ($notifyChannel === 'sms') {
            if (!$mobile || !Validate::regex($mobile, '^1\d{10}$')) {
                $this->error('手机号格式不正确');
            }
        } else {
            if (!$email || !Validate::is($email, 'email')) {
                $this->error('Email格式不正确');
            }
        }

        $now = time();
        $ip = $this->request->ip();

        $activity = Db::name('cms_yuyue')->where('id', $activityId)->find();
        if (!$activity) {
            $this->error('预约活动不存在或已下线');
        }
        $translatedActivity = $this->getTranslatedActivity($activityId, $lang);
        if ($translatedActivity) {
            $activity = array_merge($activity, $translatedActivity);
        }

        $activityTitle = trim((string)($activity['title'] ?? ''));
        if ($activityTitle === '') {
            $this->error('预约活动标题缺失');
        }

        $starttime = isset($activity['starttime']) ? (int)$activity['starttime'] : 0;
        $endtime = isset($activity['endtime']) ? (int)$activity['endtime'] : 0;
        if ($starttime > 0 && $now < $starttime) {
            $this->error('预约尚未开始');
        }
        if ($endtime > 0 && $now > $endtime) {
            $this->error('预约已结束');
        }

        $ipLimitWindowSeconds = 60;
        $ipLimitWindowMax = max(0, (int) config('site.sms_rpm', 5));
        $ipLimitDailyMax = max(0, (int) config('site.sms_drl', 10));

        $dayKey = date('Ymd', $now);
        $ipWindowKey = 'appointment_submit_ip_window_' . md5($ip);
        $ipDailyKey = 'appointment_submit_ip_daily_' . md5($ip . '_' . $dayKey);

        $ipWindowHits = (int) Cache::get($ipWindowKey, 0);
        if ($ipLimitWindowMax > 0 && $ipWindowHits >= $ipLimitWindowMax) {
            $this->error('提交过于频繁，请稍后再试');
        }

        $ipDailyHits = (int) Cache::get($ipDailyKey, 0);
        if ($ipLimitDailyMax > 0 && $ipDailyHits >= $ipLimitDailyMax) {
            $this->error('今日提交次数已达上限，请明天再试');
        }

        if ($ipLimitWindowMax > 0) {
            Cache::set($ipWindowKey, $ipWindowHits + 1, $ipLimitWindowSeconds);
        }
        if ($ipLimitDailyMax > 0) {
            Cache::set($ipDailyKey, $ipDailyHits + 1, 86400);
        }

        if ($notifyChannel === 'sms') {
            $exists = AppointmentRecord::where(['activity_id' => $activityId, 'mobile' => $mobile])->find();
        } else {
            $exists = AppointmentRecord::where(['activity_id' => $activityId, 'email' => $email])->find();
        }
        if ($exists) {
            $duplicateMsg = $notifyChannel === 'sms'
                ? '您已提交过该活动预约，请勿重复提交'
                : 'You have already submitted this reservation for the activity.';
            $this->success($duplicateMsg, null, [
                'record_id' => $exists->id,
                'duplicate' => 1,
            ]);
        }

        $submitNotifyTpl = $this->getTranslatedNotifyContent($activity, 'submit_sms_content', $lang);
        $autoNotify = !empty($activity['appointment_auto_sms']) ? 1 : 0;

        Db::startTrans();
        try {
            $record = new AppointmentRecord();
            $record->save([
                'activity_id' => $activityId,
                'activity_title' => $activityTitle,
                'lang' => $lang,
                'notify_channel' => $notifyChannel,
                'mobile' => $mobile,
                'email' => $email,
                'name' => $name,
                'remark' => $remark,
                'status' => 1,
                'submit_sms_status' => 0,
                'submit_sms_time' => 0,
                'batch_sms_status' => 0,
                'batch_sms_time' => 0,
                'source_page' => $sourcePage,
                'ip' => $ip,
                'admin_remark' => '',
                'createtime' => $now,
                'updatetime' => $now,
            ]);

            if ($notifyChannel === 'sms') {
                $submitContent = $submitNotifyTpl !== ''
                    ? str_replace('{title}', $activityTitle, $submitNotifyTpl)
                    : '您已成功预约【' . $activityTitle . '】，新品动态发布后我们将第一时间短信通知您。';

                $smsLog = new AppointmentSmsLog();
                $smsLog->save([
                    'record_id' => $record->id,
                    'activity_id' => $activityId,
                    'mobile' => $mobile,
                    'sms_type' => 'appointment_submit',
                    'template_code' => '',
                    'content' => $submitContent,
                    'status' => 0,
                    'response_code' => '',
                    'response_msg' => $autoNotify ? '待自动发送' : '当前活动未开启提交后自动短信',
                    'retry_count' => 0,
                    'send_time' => 0,
                    'createtime' => $now,
                    'updatetime' => $now,
                ]);

                if ($autoNotify) {
                    if (Event::hasListener('sms_notice')) {
                        $sendResult = SmsLib::notice($mobile, $submitContent, null);
                        $smsLog->status = $sendResult ? 1 : 2;
                        $smsLog->response_code = $sendResult ? 'SUCCESS' : 'FAIL';
                        $smsLog->response_msg = $sendResult ? '提交后自动短信发送成功' : '提交后自动短信发送失败';
                        $smsLog->send_time = $sendResult ? $now : 0;
                        $smsLog->updatetime = $now;
                        $smsLog->save();

                        $record->submit_sms_status = $sendResult ? 1 : 2;
                        $record->submit_sms_time = $sendResult ? $now : 0;
                        $record->updatetime = $now;
                        $record->save();
                    } else {
                        $smsLog->status = 2;
                        $smsLog->response_code = 'NO_PLUGIN';
                        $smsLog->response_msg = '未检测到短信通知插件监听 sms_notice';
                        $smsLog->updatetime = $now;
                        $smsLog->save();

                        $record->submit_sms_status = 2;
                        $record->updatetime = $now;
                        $record->save();
                    }
                }
            } else {
                $submitContent = $submitNotifyTpl !== ''
                    ? str_replace('{title}', $activityTitle, $submitNotifyTpl)
                    : 'You have successfully reserved [' . $activityTitle . ']. We will notify you by email when updates are available.';
                $subject = $activityTitle . ' Reservation Confirmation';

                $emailLog = new AppointmentEmailLog();
                $emailLog->save([
                    'record_id' => $record->id,
                    'activity_id' => $activityId,
                    'email' => $email,
                    'mail_type' => 'appointment_submit',
                    'subject' => $subject,
                    'content' => $submitContent,
                    'status' => 0,
                    'response_code' => '',
                    'response_msg' => $autoNotify ? '待自动发送' : '当前活动未开启提交后自动邮件',
                    'retry_count' => 0,
                    'send_time' => 0,
                    'createtime' => $now,
                    'updatetime' => $now,
                ]);

                if ($autoNotify) {
                    [$sendResult, $responseCode, $responseMsg] = $this->sendAppointmentEmail($email, $subject, $submitContent);
                    $emailLog->status = $sendResult ? 1 : 2;
                    $emailLog->response_code = $responseCode;
                    $emailLog->response_msg = $responseMsg ?: ($sendResult ? '提交后自动邮件发送成功' : '提交后自动邮件发送失败');
                    $emailLog->send_time = $sendResult ? $now : 0;
                    $emailLog->updatetime = $now;
                    $emailLog->save();

                    $record->submit_sms_status = $sendResult ? 1 : 2;
                    $record->submit_sms_time = $sendResult ? $now : 0;
                    $record->updatetime = $now;
                    $record->save();
                }
            }

            Db::commit();
        } catch (\Throwable $e) {
            Db::rollback();
            $this->error('预约提交失败：' . $e->getMessage());
        }

        if ($notifyChannel === 'sms') {
            $msg = $autoNotify
                ? ($record->submit_sms_status == 1 ? '预约成功，短信已发送，请留意手机通知' : '预约成功，但自动短信发送未完成，请稍后关注后续通知')
                : '预约成功，我们会在合适时间统一发送短信通知';
        } else {
            $msg = $autoNotify
                ? ($record->submit_sms_status == 1 ? 'Reservation successful. A confirmation email has been sent.' : 'Reservation successful, but the automatic notification was not completed.')
                : 'Reservation successful. We will contact you later by email.';
        }

        $this->success($msg, null, [
            'record_id' => $record->id,
            'lang' => $lang,
            'notify_channel' => $notifyChannel,
            'submit_sms_status' => $record->submit_sms_status,
            'batch_sms_status' => $record->batch_sms_status,
            'appointment_auto_sms' => $autoNotify,
        ]);
    }
}