+import 'multer'
import * as validator from 'validator'
function exists (value: any) {
return isIdValid(value) || isUUIDValid(value)
}
+function isBooleanValid (value: any) {
+ return typeof value === 'boolean' || (typeof value === 'string' && validator.isBoolean(value))
+}
+
+function toIntOrNull (value: string) {
+ if (value === 'null') return null
+
+ return validator.toInt(value)
+}
+
+function toValueOrNull (value: string) {
+ if (value === 'null') return null
+
+ return value
+}
+
+function toArray (value: string) {
+ if (value && isArray(value) === false) return [ value ]
+
+ return value
+}
+
+function isFileValid (
+ files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[],
+ mimeTypeRegex: string,
+ field: string,
+ maxSize: number | null,
+ optional = false
+) {
+ // Should have files
+ if (!files) return optional
+ if (isArray(files)) return optional
+
+ // Should have a file
+ const fileArray = files[ field ]
+ if (!fileArray || fileArray.length === 0) {
+ return optional
+ }
+
+ // The file should exist
+ const file = fileArray[ 0 ]
+ if (!file || !file.originalname) return false
+
+ // Check size
+ if ((maxSize !== null) && file.size > maxSize) return false
+
+ return new RegExp(`^${mimeTypeRegex}$`, 'i').test(file.mimetype)
+}
+
// ---------------------------------------------------------------------------
export {
isIdValid,
isUUIDValid,
isIdOrUUIDValid,
- isDateValid
+ isDateValid,
+ toValueOrNull,
+ isBooleanValid,
+ toIntOrNull,
+ toArray,
+ isFileValid
}