86 lines
2.2 KiB
JavaScript
86 lines
2.2 KiB
JavaScript
const Base = require('./base.js')
|
|
const util = require('util')
|
|
const validate = require('../validate.js')
|
|
|
|
class TypeArray extends Base {
|
|
constructor () {
|
|
super()
|
|
this._type = 'object'
|
|
this._empty = false
|
|
this._min = null
|
|
this._max = null
|
|
/**
|
|
* @type {Base[]}
|
|
*/
|
|
this._itemTypes = []
|
|
}
|
|
|
|
/**
|
|
* set allow empty
|
|
*/
|
|
empty () {
|
|
this._empty = true
|
|
return this
|
|
}
|
|
|
|
/**
|
|
* set min length
|
|
* @param {number} num
|
|
*/
|
|
min (num) {
|
|
if (!isFinite(num) || num === true || num === false) throw new Error('input wrong')
|
|
if (this._max !== null && this._max <= num) throw new Error(`num >= ${this._max}`)
|
|
if (num < 0) throw new Error('array length must >= 0')
|
|
this._min = parseFloat(num)
|
|
return this
|
|
}
|
|
|
|
items (...args) {
|
|
this._itemTypes.push(...args)
|
|
return this
|
|
}
|
|
|
|
/**
|
|
* set max length
|
|
* @param {number} num
|
|
*/
|
|
max (num) {
|
|
if (!isFinite(num) || num === true || num === false) throw new Error('input wrong')
|
|
if (this._min !== null && this._min >= num) throw new Error(`num <= ${this._min}`)
|
|
this._max = parseFloat(num)
|
|
return this
|
|
}
|
|
|
|
validate (value) {
|
|
if (value === undefined && this._required) return `required`
|
|
if (value === undefined) return null
|
|
/* eslint-disable-next-line */
|
|
if (typeof value !== this._type) return `${util.inspect(value, false, null)} type not array`
|
|
if (!Array.isArray(value)) return `${util.inspect(value, false, null)} type not array`
|
|
if (!this._empty && value.length === 0) return `not allow empty`
|
|
if (this._min !== null && value.length < this._min) return `value length < ${this._min}`
|
|
if (this._max !== null && value.length > this._max) return `value length > ${this._max}`
|
|
|
|
if (this._itemTypes.length > 0) {
|
|
for (const item of value) {
|
|
let verified = false
|
|
let fail = ''
|
|
for (const type of this._itemTypes) {
|
|
const result = type.validate(item)
|
|
if (result) {
|
|
fail = result
|
|
} else {
|
|
verified = true
|
|
fail = ''
|
|
break
|
|
}
|
|
}
|
|
if (!verified || fail) return fail || `item type not match`
|
|
}
|
|
}
|
|
|
|
return null
|
|
}
|
|
}
|
|
module.exports = TypeArray
|