From 690a7b53a72ac71f9f76260fa50c634566c4e984 Mon Sep 17 00:00:00 2001 From: "(quasar) nebula" Date: Mon, 28 Nov 2022 23:25:05 -0400 Subject: divide things.js into modular files (hilariously) --- src/data/validators.js | 367 ------------------------------------------------- 1 file changed, 367 deletions(-) delete mode 100644 src/data/validators.js (limited to 'src/data/validators.js') diff --git a/src/data/validators.js b/src/data/validators.js deleted file mode 100644 index 5c357c83..00000000 --- a/src/data/validators.js +++ /dev/null @@ -1,367 +0,0 @@ -import {withAggregate} from '../util/sugar.js'; - -import {color, ENABLE_COLOR} from '../util/cli.js'; - -import {inspect as nodeInspect} from 'util'; - -function inspect(value) { - return nodeInspect(value, {colors: ENABLE_COLOR}); -} - -// Basic types (primitives) - -function a(noun) { - return /[aeiou]/.test(noun[0]) ? `an ${noun}` : `a ${noun}`; -} - -function isType(value, type) { - if (typeof value !== type) - throw new TypeError(`Expected ${a(type)}, got ${typeof value}`); - - return true; -} - -export function isBoolean(value) { - return isType(value, 'boolean'); -} - -export function isNumber(value) { - return isType(value, 'number'); -} - -export function isPositive(number) { - isNumber(number); - - if (number <= 0) throw new TypeError(`Expected positive number`); - - return true; -} - -export function isNegative(number) { - isNumber(number); - - if (number >= 0) throw new TypeError(`Expected negative number`); - - return true; -} - -export function isPositiveOrZero(number) { - isNumber(number); - - if (number < 0) throw new TypeError(`Expected positive number or zero`); - - return true; -} - -export function isNegativeOrZero(number) { - isNumber(number); - - if (number > 0) throw new TypeError(`Expected negative number or zero`); - - return true; -} - -export function isInteger(number) { - isNumber(number); - - if (number % 1 !== 0) throw new TypeError(`Expected integer`); - - return true; -} - -export function isCountingNumber(number) { - isInteger(number); - isPositive(number); - - return true; -} - -export function isWholeNumber(number) { - isInteger(number); - isPositiveOrZero(number); - - return true; -} - -export function isString(value) { - return isType(value, 'string'); -} - -export function isStringNonEmpty(value) { - isString(value); - - if (value.trim().length === 0) - throw new TypeError(`Expected non-empty string`); - - return true; -} - -// Complex types (non-primitives) - -export function isInstance(value, constructor) { - isObject(value); - - if (!(value instanceof constructor)) - throw new TypeError(`Expected ${constructor.name}, got ${value.constructor.name}`); - - return true; -} - -export function isDate(value) { - return isInstance(value, Date); -} - -export function isObject(value) { - isType(value, 'object'); - - // Note: Please remember that null is always a valid value for properties - // held by a CacheableObject. This assertion is exclusively for use in other - // contexts. - if (value === null) throw new TypeError(`Expected an object, got null`); - - return true; -} - -export function isArray(value) { - if (typeof value !== 'object' || value === null || !Array.isArray(value)) - throw new TypeError(`Expected an array, got ${value}`); - - return true; -} - -function validateArrayItemsHelper(itemValidator) { - return (item, index) => { - try { - const value = itemValidator(item); - - if (value !== true) { - throw new Error(`Expected validator to return true`); - } - } catch (error) { - error.message = `(index: ${color.green(index)}, item: ${inspect(item)}) ${error.message}`; - throw error; - } - }; -} - -export function validateArrayItems(itemValidator) { - const fn = validateArrayItemsHelper(itemValidator); - - return (array) => { - isArray(array); - - withAggregate({message: 'Errors validating array items'}, ({wrap}) => { - array.forEach(wrap(fn)); - }); - - return true; - }; -} - -export function validateInstanceOf(constructor) { - return (object) => isInstance(object, constructor); -} - -// Wiki data (primitives & non-primitives) - -export function isColor(color) { - isStringNonEmpty(color); - - if (color.startsWith('#')) { - if (![4, 5, 7, 9].includes(color.length)) - throw new TypeError(`Expected #rgb, #rgba, #rrggbb, or #rrggbbaa, got length ${color.length}`); - - if (/[^0-9a-fA-F]/.test(color.slice(1))) - throw new TypeError(`Expected hexadecimal digits`); - - return true; - } - - throw new TypeError(`Unknown color format`); -} - -export function isCommentary(commentary) { - return isString(commentary); -} - -const isArtistRef = validateReference('artist'); - -export function validateProperties(spec) { - const specEntries = Object.entries(spec); - const specKeys = Object.keys(spec); - - return (object) => { - isObject(object); - - if (Array.isArray(object)) - throw new TypeError(`Expected an object, got array`); - - withAggregate({message: `Errors validating object properties`}, ({call}) => { - for (const [specKey, specValidator] of specEntries) { - call(() => { - const value = object[specKey]; - try { - specValidator(value); - } catch (error) { - error.message = `(key: ${color.green(specKey)}, value: ${inspect(value)}) ${error.message}`; - throw error; - } - }); - } - - const unknownKeys = Object.keys(object).filter((key) => !specKeys.includes(key)); - if (unknownKeys.length > 0) { - call(() => { - throw new Error(`Unknown keys present (${unknownKeys.length}): [${unknownKeys.join(', ')}]`); - }); - } - }); - - return true; - }; -} - -export const isContribution = validateProperties({ - who: isArtistRef, - what: (value) => - value === undefined || - value === null || - isStringNonEmpty(value), -}); - -export const isContributionList = validateArrayItems(isContribution); - -export const isAdditionalFile = validateProperties({ - title: isString, - description: (value) => - value === undefined || - value === null || - isString(value), - files: validateArrayItems(isString), -}); - -export const isAdditionalFileList = validateArrayItems(isAdditionalFile); - -export function isDimensions(dimensions) { - isArray(dimensions); - - if (dimensions.length !== 2) throw new TypeError(`Expected 2 item array`); - - isPositive(dimensions[0]); - isInteger(dimensions[0]); - isPositive(dimensions[1]); - isInteger(dimensions[1]); - - return true; -} - -export function isDirectory(directory) { - isStringNonEmpty(directory); - - if (directory.match(/[^a-zA-Z0-9_-]/)) - throw new TypeError(`Expected only letters, numbers, dash, and underscore, got "${directory}"`); - - return true; -} - -export function isDuration(duration) { - isNumber(duration); - isPositiveOrZero(duration); - - return true; -} - -export function isFileExtension(string) { - isStringNonEmpty(string); - - if (string[0] === '.') - throw new TypeError(`Expected no dot (.) at the start of file extension`); - - if (string.match(/[^a-zA-Z0-9_]/)) - throw new TypeError(`Expected only alphanumeric and underscore`); - - return true; -} - -export function isLanguageCode(string) { - // TODO: This is a stub function because really we don't need a detailed - // is-language-code parser right now. - - isString(string); - - return true; -} - -export function isName(name) { - return isString(name); -} - -export function isURL(string) { - isStringNonEmpty(string); - - new URL(string); - - return true; -} - -export function validateReference(type = 'track') { - return (ref) => { - isStringNonEmpty(ref); - - const match = ref - .trim() - .match(/^(?:(?\S+):(?=\S))?(?.+)(? { - const errorMeta = []; - - for (let i = 0, check; (check = checks[i]); i++) { - try { - const result = check(value); - - if (result !== true) { - throw new Error(`Check returned false`); - } - - return true; - } catch (error) { - errorMeta.push([check, i, error]); - } - } - - // Don't process error messages until every check has failed. - const errors = []; - for (const [check, i, error] of errorMeta) { - error.message = check.name - ? `(#${i} "${check.name}") ${error.message}` - : `(#${i}) ${error.message}`; - error.check = check; - errors.push(error); - } - throw new AggregateError(errors, `Expected one of ${checks.length} possible checks, but none were true`); - }; -} -- cgit 1.3.0-6-gf8a5