root
242 lines
7.7 KiB
PHP
Executable File
242 lines
7.7 KiB
PHP
Executable File
<?php
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declare(strict_types=1);
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namespace app\common\service;
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use app\admin\model\split\Link;
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use app\admin\model\split\Number;
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use app\admin\model\split\Ticket;
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use think\Collection;
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/**
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* 分流链接落地页：查链、选号、拼接跳转 URL、访问计数
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*
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* 号码池：同一 split_link_id 下 status=normal，且所属工单未关闭（ticket.status≠hidden）的号码；
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* 优先选用 ratio_deferred=0，全部触线降权时回退至降权池。
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*
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* random_shuffle=0：跨工单合并池，全局严格轮转；
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* random_shuffle=1：先按各工单开启号码数量比例随机选工单，再在该工单内随机选号。
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*/
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class SplitRedirectService
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{
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private SplitRoundRobinStore $roundRobinStore;
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private SplitNumberVisitRuleService $visitRuleService;
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public function __construct(
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?SplitRoundRobinStore $roundRobinStore = null,
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?SplitNumberVisitRuleService $visitRuleService = null
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) {
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$this->roundRobinStore = $roundRobinStore ?? new SplitRoundRobinStore();
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$this->visitRuleService = $visitRuleService ?? new SplitNumberVisitRuleService();
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}
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/**
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* 根据链接码解析本次应跳转的加好友 URL；无效时返回 null
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*
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* @param string $linkCode 9 位链接码
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* @param string $clientIp 访客 IP（IP 防护开启时用于国家校验）
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*/
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public function resolveRedirectUrl(string $linkCode, string $clientIp = ''): ?string
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{
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$linkCode = SplitLinkCodeService::normalize($linkCode);
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if (!SplitLinkCodeService::isValidFormat($linkCode)) {
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return null;
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}
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$link = Link::where('link_code', $linkCode)
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->where('status', 'normal')
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->find();
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if (!$link) {
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return null;
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}
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$ipProtect = (int) $link->getAttr('ip_protect');
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$countries = (string) $link->getAttr('countries');
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if (!SplitIpProtectService::isAllowed($ipProtect, $countries, $clientIp)) {
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return null;
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}
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$linkId = (int) $link->getAttr('id');
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$list = $this->loadEligibleNumbers($linkId);
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if ($list === []) {
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return null;
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}
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if (SplitNumberWeighService::isRandomShuffleEnabled($linkId)) {
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$picked = $this->pickNumberRowRandomByTicketWeight($linkId, $list);
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} else {
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$picked = $this->pickNumberRow($linkId, $list);
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}
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if ($picked === null) {
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return null;
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}
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$numberType = is_array($picked) ? (string) ($picked['number_type'] ?? '') : (string) $picked->getAttr('number_type');
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$numberValue = is_array($picked) ? (string) ($picked['number'] ?? '') : (string) $picked->getAttr('number');
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$numberCustom = is_array($picked)
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? (string) ($picked['number_type_custom'] ?? '')
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: (string) $picked->getAttr('number_type_custom');
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$replyText = '';
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if (in_array($numberType, ['whatsapp', 'telegram'], true)) {
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$replyText = SplitAutoReplyService::pickRandomLine((string) $link->getAttr('auto_reply'));
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}
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$redirectUrl = SplitFriendUrlBuilder::build(
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$numberType,
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$numberValue,
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$numberCustom,
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$replyText
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);
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if ($redirectUrl === '') {
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return null;
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}
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$numberId = is_array($picked) ? (int) ($picked['id'] ?? 0) : (int) $picked->getAttr('id');
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if ($numberId > 0) {
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Number::where('id', $numberId)->setInc('visit_count');
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$this->visitRuleService->recordVisitAfterRedirect($numberId);
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}
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return $redirectUrl;
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}
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/**
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* 可参与选号的号码：status=normal，且 ticket_name 不属于已关闭工单
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*
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* @return list<Number|array<string, mixed>>
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*/
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private function loadEligibleNumbers(int $linkId): array
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{
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if ($linkId <= 0) {
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return [];
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}
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/** @var list<string> $hiddenTicketNames */
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$hiddenTicketNames = Ticket::where('split_link_id', $linkId)
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->where('status', 'hidden')
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->column('ticket_name');
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$hiddenTicketNames = array_values(array_unique(array_filter(array_map(
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static function ($name): string {
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return trim((string) $name);
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},
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$hiddenTicketNames
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))));
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$query = Number::where('split_link_id', $linkId)
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->where('status', 'normal')
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->order('id', 'asc')
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->field('id,number,number_type,number_type_custom,ratio_deferred,ticket_name');
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if ($hiddenTicketNames !== []) {
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$query->where('ticket_name', 'not in', $hiddenTicketNames);
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}
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$numbers = $query->select();
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return $numbers instanceof Collection ? $numbers->all() : (array) $numbers;
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}
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/**
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* random_shuffle=1：先按工单开启号码数加权随机选工单，再在该工单内选号
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*
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* @param list<Number|array<string, mixed>> $rows
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* @return array<string, mixed>|Number|null
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*/
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private function pickNumberRowRandomByTicketWeight(int $linkId, array $rows)
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{
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$groups = $this->groupNumbersByTicket($rows);
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if ($groups === []) {
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return null;
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}
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$ticketKey = $this->pickTicketGroupKeyWeighted($groups);
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if ($ticketKey === null || !isset($groups[$ticketKey])) {
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return null;
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}
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return $this->pickNumberRow($linkId, $groups[$ticketKey]);
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}
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/**
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* @param list<Number|array<string, mixed>> $rows
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* @return array<string, list<Number|array<string, mixed>>>
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*/
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private function groupNumbersByTicket(array $rows): array
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{
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/** @var array<string, list<Number|array<string, mixed>>> $groups */
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$groups = [];
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foreach ($rows as $row) {
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$name = is_array($row)
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? trim((string) ($row['ticket_name'] ?? ''))
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: trim((string) $row->getAttr('ticket_name'));
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$key = $name !== '' ? $name : '__manual__';
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$groups[$key][] = $row;
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}
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return $groups;
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}
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/**
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* 按各分组号码数量加权随机选一个工单（分组 key）
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*
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* @param array<string, list<Number|array<string, mixed>>> $groups
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*/
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private function pickTicketGroupKeyWeighted(array $groups): ?string
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{
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$total = 0;
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foreach ($groups as $rows) {
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$total += count($rows);
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}
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if ($total <= 0) {
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return null;
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}
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$keys = array_keys($groups);
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if (count($keys) === 1) {
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return $keys[0];
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}
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$r = random_int(1, $total);
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$acc = 0;
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foreach ($groups as $key => $rows) {
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$acc += count($rows);
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if ($r <= $acc) {
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return $key;
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}
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}
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return $keys[0];
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}
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/**
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* 双层选号：优先 ratio_deferred=0，否则回退至降权池
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*
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* @param list<Number|array<string, mixed>> $rows
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* @return array<string, mixed>|Number|null
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*/
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private function pickNumberRow(int $linkId, array $rows)
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{
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$preferred = [];
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$deferred = [];
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foreach ($rows as $row) {
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$deferredFlag = is_array($row)
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? (int) ($row['ratio_deferred'] ?? 0)
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: (int) $row->getAttr('ratio_deferred');
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if ($deferredFlag === 1) {
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$deferred[] = $row;
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} else {
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$preferred[] = $row;
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}
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}
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$picked = SplitNumberWeighService::pickRowFromList($linkId, $preferred, $this->roundRobinStore, 'preferred');
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if ($picked !== null) {
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return $picked;
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}
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return SplitNumberWeighService::pickRowFromList($linkId, $deferred, $this->roundRobinStore, 'deferred');
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}
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}
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