<?php

namespace addons\shopro\service\partner;

use app\admin\model\shopro\order\Order as OrderModel;

/**
 * 30 日活跃：含今天共 N 个自然日有本人合格订单
 */
class ActiveService
{
    public function windowStart($endTime = null)
    {
        $days = PartnerConfig::activeDays();
        $end = $endTime ?: time();
        $endDay = strtotime(date('Y-m-d 00:00:00', $end));
        return $endDay - ($days - 1) * 86400;
    }

    public function isActive($agent, $atTime = null)
    {
        if (!$agent) {
            return false;
        }
        $last = is_array($agent) ? ($agent['last_self_order_time'] ?? null) : ($agent->last_self_order_time ?? null);
        $userId = is_array($agent) ? ($agent['user_id'] ?? 0) : ($agent->user_id ?? 0);
        $at = $atTime ?: time();
        $start = $this->windowStart($at);

        if ($last) {
            $lastTime = intval($last);
            $days = PartnerConfig::activeDays();
            return ($at <= $lastTime + $days * 86400) || ($lastTime >= $start);
        }
        if (!$userId) {
            return false;
        }
        return $this->hasQualifiedOrder($userId, $start, $at);
    }

    /**
     * 判断指定用户在时间窗口内是否有有效订单（本人自购或直推下级合格订单）
     */
    public function hasQualifiedOrder($userId, $start, $end)
    {
        if (!$userId) {
            return false;
        }
        $rateService = new RateService();
        $directChildIds = \think\Db::name('user')->where('parent_user_id', $userId)->column('id');
        $candidateUserIds = array_merge([$userId], $directChildIds);

        $order = $rateService->qualifiedOrderQuery($start, $end)
            ->whereIn('o.user_id', $candidateUserIds)
            ->find();
        return (bool) $order;
    }

    public function activeUserIds($start, $end, $extraWhere = [])
    {
        $createBaseQuery = function () use ($extraWhere) {
            $q = \think\Db::name('shopro_commission_agent')
                ->where('status', 'in', ['normal', 'freeze'])
                ->where('level', '>=', 1);
            foreach ($extraWhere as $field => $value) {
                $q->where($field, $value);
            }
            return $q;
        };

        // 1. 优先通过 last_self_order_time 索引快速命中
        $hitUserIds = $createBaseQuery()->where(function ($q) use ($start, $end) {
            $q->where('last_self_order_time', '>=', $start)
                ->where('last_self_order_time', '<=', $end);
        })->column('user_id');

        // 2. 容错：查找 last_self_order_time 为空或为 0 的代理商
        $nullUserIds = $createBaseQuery()->where(function ($q) {
            $q->whereNull('last_self_order_time')->whereOr('last_self_order_time', 0);
        })->column('user_id');

        if (!empty($nullUserIds)) {
            $rateService = new RateService();
            // 2.1 自购订单命中
            $orderHits = $rateService->qualifiedOrderQuery($start, $end)
                ->whereIn('o.user_id', $nullUserIds)
                ->group('o.user_id')
                ->column('max(o.paid_time)', 'o.user_id');

            foreach ($orderHits as $uId => $lastTime) {
                \think\Db::name('shopro_commission_agent')->where('user_id', $uId)->update(['last_self_order_time' => $lastTime]);
                $hitUserIds[] = intval($uId);
            }

            // 2.2 直推下级订单命中（针对仍未命中的代理商）
            $remainingNullIds = array_diff($nullUserIds, array_keys($orderHits));
            if (!empty($remainingNullIds)) {
                $userTable = \think\Db::name('user')->getTable();
                $directHits = $rateService->qualifiedOrderQuery($start, $end)
                    ->join($userTable . ' u', 'u.id = o.user_id')
                    ->whereIn('u.parent_user_id', $remainingNullIds)
                    ->group('u.parent_user_id')
                    ->column('max(o.paid_time)', 'u.parent_user_id');

                foreach ($directHits as $pId => $lastTime) {
                    \think\Db::name('shopro_commission_agent')->where('user_id', $pId)->update(['last_self_order_time' => $lastTime]);
                    $hitUserIds[] = intval($pId);
                }
            }
        }

        return array_values(array_unique(array_map('intval', $hitUserIds)));
    }

    /**
     * 批量校准所有分销商的有效订单时间（自购及直推合格订单最大值回填）
     */
    public function syncActiveTimes($sinceTime = null)
    {
        $rateService = new RateService();
        $userTable = \think\Db::name('user')->getTable();

        // 1. 本人自购最新合格订单时间
        $selfQuery = $rateService->qualifiedOrderQuery($sinceTime)
            ->group('o.user_id')
            ->column('max(o.paid_time)', 'o.user_id');

        // 2. 直推下级最新合格订单时间
        $directQuery = $rateService->qualifiedOrderQuery($sinceTime)
            ->join($userTable . ' u', 'u.id = o.user_id')
            ->where('u.parent_user_id', '>', 0)
            ->group('u.parent_user_id')
            ->column('max(o.paid_time)', 'u.parent_user_id');

        // 3. 汇总取最大值
        $allUserIds = array_unique(array_merge(array_keys($selfQuery), array_keys($directQuery)));
        $updated = 0;

        foreach ($allUserIds as $uId) {
            $selfTime = intval($selfQuery[$uId] ?? 0);
            $directTime = intval($directQuery[$uId] ?? 0);
            $maxTime = max($selfTime, $directTime);

            if ($maxTime > 0) {
                $agent = \think\Db::name('shopro_commission_agent')->where('user_id', $uId)->find();
                if ($agent && $maxTime > intval($agent['last_self_order_time'] ?? 0)) {
                    \think\Db::name('shopro_commission_agent')->where('user_id', $uId)->update([
                        'last_self_order_time' => $maxTime,
                    ]);
                    $updated++;
                }
            }
        }

        return $updated;
    }
}