<?php
declare(strict_types=1);

namespace app\controller\api;

use app\BaseController;
use app\service\AuthContext;

class Upload extends BaseController
{
    public function image()
    {
        if (!AuthContext::mpUser()) {
            return json(['code' => 401, 'msg' => '未授权', 'data' => []]);
        }

        $file = $this->request->file('file');
        if (!$file) {
            return json(['code' => 400, 'msg' => '请选择文件', 'data' => []]);
        }

        $max = 10 * 1024 * 1024;
        if ($file->getSize() > $max) {
            return json(['code' => 400, 'msg' => '文件不能超过 10MB', 'data' => []]);
        }
        $ext = strtolower((string) $file->extension());
        if (!in_array($ext, ['jpg', 'jpeg', 'png', 'webp', 'gif'], true)) {
            return json(['code' => 400, 'msg' => '仅支持 jpg/png/webp/gif', 'data' => []]);
        }

        $subdir = date('Ymd');
        $root   = public_path() . 'uploads' . DIRECTORY_SEPARATOR . $subdir;
        if (!is_dir($root) && !mkdir($root, 0755, true) && !is_dir($root)) {
            return json(['code' => 500, 'msg' => '无法创建上传目录', 'data' => []]);
        }

        $saveName = bin2hex(random_bytes(8)) . '.' . $ext;
        $file->move($root, $saveName);

        $url = '/uploads/' . $subdir . '/' . $saveName;

        return json(['code' => 0, 'msg' => 'ok', 'data' => ['url' => $url]]);
    }
}