<?php

namespace app\api\controller;

use app\common\model\user\User;

class ShareController extends BaseApiController
{
    public array $notNeedLogin = ['getShareInfo'];

    /**
     * @notes 获取分享信息（当前用户的邀请码、昵称、头像等）
     */
    public function getShareInfo()
    {
        $h5Domain = \app\common\service\ConfigService::get('website', 'h5_domain', '');
        if (empty($h5Domain)) {
            $h5Domain = request()->domain() . '/mobile';
        }

        // 未登录：返回通用分享信息
        if (empty($this->userId)) {
            return $this->data([
                'invite_code' => '',
                'nickname' => '世博头条',
                'avatar' => '',
                'h5_domain' => $h5Domain,
            ]);
        }

        $user = User::findOrEmpty($this->userId);
        if ($user->isEmpty()) {
            return $this->data([
                'invite_code' => '',
                'nickname' => '世博头条',
                'avatar' => '',
                'h5_domain' => $h5Domain,
            ]);
        }

        // 如果用户还没有邀请码，自动生成
        $inviteCode = $user->getData('invite_code');
        if (empty($inviteCode)) {
            $inviteCode = User::createInviteCode();
            $user->save(['invite_code' => $inviteCode]);
        }

        // 递归获取所有下级用户数
        $teamCount = self::getTeamCount($this->userId);

        return $this->data([
            'invite_code' => $inviteCode,
            'nickname' => $user->getData('nickname'),
            'avatar' => $user->avatar,
            'h5_domain' => $h5Domain,
            'team_count' => $teamCount,
        ]);
    }

    /**
     * 递归统计所有下级用户总数
     */
    private static function getTeamCount(int $userId): int
    {
        $directIds = User::where('inviter_id', $userId)->column('id');
        if (empty($directIds)) {
            return 0;
        }
        $count = count($directIds);
        foreach ($directIds as $id) {
            $count += self::getTeamCount($id);
        }
        return $count;
    }

    /**
     * @notes 获取我的邀请列表
     */
    public function getInviteList()
    {
        $page = $this->request->get('page/d', 1);
        $size = $this->request->get('size/d', 20);
        $level = $this->request->get('level/d', 1);

        // 未登录：返回空列表
        if (empty($this->userId)) {
            return $this->data([
                'list' => [],
                'total' => 0,
                'page' => $page,
                'size' => $size,
            ]);
        }

        if ($level == 2) {
            // 二级：我的一级用户邀请的人
            $firstLevelIds = User::where('inviter_id', $this->userId)->column('id');
            if (empty($firstLevelIds)) {
                return $this->data([
                    'list' => [],
                    'total' => 0,
                    'page' => $page,
                    'size' => $size,
                ]);
            }
            $query = User::whereIn('inviter_id', $firstLevelIds);
        } else {
            // 一级：直接邀请的人
            $query = User::where('inviter_id', $this->userId);
        }

        $list = $query->field('id, sn, nickname, avatar, create_time')
            ->order('id', 'desc')
            ->page($page, $size)
            ->select()
            ->toArray();

        $count = $query->count();

        return $this->data([
            'list' => $list,
            'total' => $count,
            'page' => $page,
            'size' => $size,
        ]);
    }
}