<?php

namespace base\common\scheme\attribute;

use Attribute;

#[Attribute(Attribute::TARGET_PROPERTY)]
class Field
{
    public function __construct(
        public string $type = 'varchar',
        public ?int $length = null,
        public int $precision = 0,
        public int $scale = 0,
        public bool $nullable = true,
        public mixed $default = null,
        public string $comment = '',
        public bool $unsigned = false,
        public bool $autoIncrement = false,
        public bool $primary = false
    ) {
        $type = strtolower(trim($this->type));

        if ($this->length !== null && $this->length < 1) {
            throw new \InvalidArgumentException("Scheme 字段 length 必须 >= 1，当前={$this->length}");
        }

        if ($type === 'char' && $this->length !== null && $this->length > 255) {
            throw new \InvalidArgumentException("Scheme 字段类型 char 的 length 超出范围，允许 1-255，当前={$this->length}");
        }
    }
}