<?php

namespace app\api\controller;

use think\Db;

/**
 * 后台管理端 · 商家管理（Module-ADM-MERCHANT）
 * 路由：
 *   GET  /api/v1/admin/merchants                AM1 商家列表
 *   POST /api/v1/admin/merchant/:id/audit       AM2 商家资质审核
 */
class AdminMerchant extends V1
{
    /** 管理端接口必须校验管理员身份（V1 默认关闭了 URI 权限校验） */
    public function _initialize()
    {
        parent::_initialize();
        $this->adminOnly();
    }

    /**
     * AM1 商家列表
     * GET /api/v1/admin/merchants 入参 {status?,keyword?,page,size}
     * → 分页 {list:[{id,name,logo,contact,category,auditStatus,license,shopStatus,violations,postCount,createdAt}],page,size,total,hasMore}
     * 注意：id 返回 fc_merchant.user_id（与前端商家列表一致）
     */
    public function index()
    {
        $status = $this->input('status', '');
        $keyword = trim((string)$this->input('keyword', ''));

        // 闭包重建查询：TP5.0 的 count() 会清空 Query::options，不能复用同一对象
        list($rows, $total, $page, $size) = $this->pageQuery(function ($forCount) use ($status, $keyword) {
            $q = Db::name('fc_merchant');
            if ($status !== '' && $status !== null) {
                $q->where('audit_status', (int)$status);
            }
            if ($keyword !== '') {
                $q->where('name', 'like', '%' . $keyword . '%');
            }
            if ($forCount) {
                return $q;
            }
            return $q->order('id desc');
        });

        $list = [];
        foreach ($rows as $row) {
            $list[] = [
                'id'          => (int)$row['user_id'],
                'name'        => (string)$row['name'],
                'logo'        => (string)$row['logo'],
                'contact'     => (string)$row['contact'],
                'category'    => (string)$row['category'],
                'auditStatus' => (int)$row['audit_status'],
                'license'     => (string)$row['license'],
                'shopStatus'  => (string)$row['shop_status'],
                'violations'  => (int)$row['violations'],
                'postCount'   => (int)$row['post_count'],
                'createdAt'   => $this->iso($row['createtime']),
            ];
        }

        $this->ok($this->paginate($list, $total, $page, $size));
    }

    /**
     * AM2 商家资质审核
     * POST /api/v1/admin/merchant/:id/audit 入参 {auditStatus,reason?} → {id,auditStatus}
     * 规则 BR-11：auditStatus 仅允许 1（通过）/2（驳回）
     */
    public function audit()
    {
        $id = (int)$this->request->param('id', 0);
        $auditStatus = (int)$this->input('auditStatus', 0);
        $reason = trim((string)$this->input('reason', ''));

        if (!in_array($auditStatus, [1, 2], true)) {
            $this->fail('审核状态仅支持通过(1)/驳回(2)');
        }

        $merchant = Db::name('fc_merchant')->where('user_id', $id)->find();
        if (!$merchant) {
            $this->fail('商家不存在', 404);
        }

        Db::name('fc_merchant')->where('user_id', $id)->update([
            'audit_status' => $auditStatus,
            'audit_reason' => $reason,
            'shop_status'  => $auditStatus === 1 ? 'normal' : 'banned',
            'updatetime'   => time(),
        ]);

        if ($auditStatus === 1) {
            Db::name('fc_user_ext')->where('user_id', $id)->update([
                'user_type'  => 2,
                'updatetime' => time(),
            ]);
            $this->notify($id, 'system', '商家资质审核结果', '恭喜，您的商家资质已通过审核。');
        } else {
            $this->notify($id, 'system', '商家资质审核结果', '您的商家资质未通过：' . $reason);
        }

        $this->adminLog('审核商家 #' . $id . ' 结果' . $auditStatus);

        $this->ok(['id' => $id, 'auditStatus' => $auditStatus]);
    }
}