feat: Filemagedon

Signed-off-by: Avior <git@avior.me>

src/libs/Schema/Items/SchemaString.ts

@@ -0,0 +1,76 @@
+import SchemaItem from '../SchemaItem'
+import SchemaNullable from './SchemaNullable'
+
+export default class SchemaString extends SchemaItem<string> {
+	/**
+	 * force the input text to be a minimum of `value` size
+	 * @param value the minimum length of the text
+	 * @param message the message to display on an error
+	 */
+	public min(value: number, message?: string): SchemaString {
+		this.validations.push({
+			fn(input) {
+				return input.length >= value
+			},
+			message: message
+		})
+
+		return this
+	}
+
+	/**
+	 * force the input text to be a maximum of `value` size
+	 * @param value the maximum length of the text
+	 * @param message the message to display on an error
+	 */
+	public max(value: number, message?: string): SchemaString {
+		this.validations.push({
+			fn(input) {
+				return input.length <= value
+			},
+			message: message
+		})
+		return this
+	}
+
+	/**
+	 * the value must not be empty (`''`)
+	 * @param message
+	 * @returns
+	 */
+	public notEmpty(message?: string): this {
+		this.validations.push({
+			fn(input) {
+				return input !== ''
+			},
+			message: message
+		})
+		return this
+	}
+
+	/**
+	 * note: this nullable MUST be used last as it change the type of the returned function
+	 */
+	public nullable() {
+		return new SchemaNullable(this)
+	}
+
+	/**
+	 * force the input text to respect a Regexp
+	 * @param regex the regex to validate against
+	 * @param message the message to display on an error
+	 */
+	public regex(regex: RegExp, message?: string): SchemaString {
+		this.validations.push({
+			fn(input) {
+				return regex.test(input)
+			},
+			message
+		})
+		return this
+	}
+
+	public override isOfType(input: unknown): input is string {
+		return typeof input === 'string'
+	}
+}