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import * as fs from 'fs' |
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import { getTagsFromId3Tag } from '../id3-tag' |
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import { isFunction, isString } from '../util' |
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import { Tags, TagIdentifiers } from '../types/Tags' |
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import { Options } from '../types/Options' |
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/** |
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* Callback signature for successful asynchronous read operation. |
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* |
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* @param tags - `TagsIdentifiers` if the `rawOnly` option was true otherwise |
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* `Tags` |
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* @public |
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*/ |
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export type ReadSuccessCallback = |
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(error: null, tags: Tags | TagIdentifiers) => void |
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/** |
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* Callback signatures for failing asynchronous read operation. |
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* |
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* @public |
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*/ |
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export type ReadErrorCallback = |
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(error: NodeJS.ErrnoException | Error, tags: null) => void |
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/** |
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* Callback signatures for asynchronous read operation. |
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* |
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* @public |
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*/ |
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export type ReadCallback = |
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ReadSuccessCallback & ReadErrorCallback |
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/** |
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* Reads ID3-Tags synchronously from passed buffer/filepath. |
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* |
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* @public |
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*/ |
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export function read(filebuffer: string | Buffer, options?: Options): Tags |
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/** |
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* Reads ID3-Tags asynchronously from passed buffer/filepath. |
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* |
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* @public |
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*/ |
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export function read(filebuffer: string | Buffer, callback: ReadCallback): void |
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/** |
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* Reads ID3-Tags asynchronously from passed buffer/filepath. |
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* |
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* @public |
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*/ |
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export function read( |
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filebuffer: string | Buffer, options: Options, callback: ReadCallback |
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): void |
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export function read( |
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filebuffer: string | Buffer, |
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optionsOrCallback?: Options | ReadCallback, |
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callback?: ReadCallback |
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): Tags | TagIdentifiers | void { |
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const options: Options = |
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(isFunction(optionsOrCallback) ? {} : optionsOrCallback) ?? {} |
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callback = |
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isFunction(optionsOrCallback) ? optionsOrCallback : callback |
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if (isFunction(callback)) { |
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return readAsync(filebuffer, options, callback) |
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} |
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return readSync(filebuffer, options) |
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} |
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function readSync(filebuffer: string | Buffer, options: Options) { |
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if (isString(filebuffer)) { |
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filebuffer = fs.readFileSync(filebuffer) |
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} |
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return getTagsFromId3Tag(filebuffer, options) |
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} |
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function readAsync( |
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filebuffer: string | Buffer, |
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options: Options, |
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callback: ReadCallback |
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) { |
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if (isString(filebuffer)) { |
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fs.readFile(filebuffer, (error, data) => { |
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if(error) { |
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callback(error, null) |
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} else { |
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callback(null, getTagsFromId3Tag(data, options)) |
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} |
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}) |
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} else { |
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callback(null, getTagsFromId3Tag(filebuffer, options)) |
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} |
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} |
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Zazama /
node-id3
