audiobookshelf/server/providers/Audnexus.js

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const axios = require('axios').default
const { levenshteinDistance } = require('../utils/index')
const Logger = require('../Logger')
/**
* @typedef AuthorSearchObj
* @property {string} asin
* @property {string} description
* @property {string} image
* @property {string} name
*/
class Audnexus {
constructor() {
this.baseUrl = 'https://api.audnex.us'
}
/**
*
* @param {string} name
* @param {string} region
* @returns {Promise<{asin:string, name:string}[]>}
*/
authorASINsRequest(name, region) {
const searchParams = new URLSearchParams()
searchParams.set('name', name)
if (region) searchParams.set('region', region)
const authorRequestUrl = `${this.baseUrl}/authors?${searchParams.toString()}`
Logger.info(`[Audnexus] Searching for author "${authorRequestUrl}"`)
return axios
.get(authorRequestUrl)
.then((res) => {
return res.data || []
})
.catch((error) => {
Logger.error(`[Audnexus] Author ASIN request failed for ${name}`, error)
return []
})
}
/**
*
* @param {string} asin
* @param {string} region
* @returns {Promise<AuthorSearchObj>}
*/
authorRequest(asin, region) {
asin = encodeURIComponent(asin)
const regionQuery = region ? `?region=${region}` : ''
const authorRequestUrl = `${this.baseUrl}/authors/${asin}${regionQuery}`
Logger.info(`[Audnexus] Searching for author "${authorRequestUrl}"`)
return axios
.get(authorRequestUrl)
.then((res) => {
return res.data
})
.catch((error) => {
Logger.error(`[Audnexus] Author request failed for ${asin}`, error)
return null
})
}
/**
*
* @param {string} asin
* @param {string} region
* @returns {Promise<AuthorSearchObj>}
*/
async findAuthorByASIN(asin, region) {
const author = await this.authorRequest(asin, region)
if (!author) {
return null
}
return {
asin: author.asin,
description: author.description,
image: author.image || null,
name: author.name
}
}
/**
*
* @param {string} name
* @param {string} region
* @param {number} maxLevenshtein
* @returns {Promise<AuthorSearchObj>}
*/
async findAuthorByName(name, region, maxLevenshtein = 3) {
Logger.debug(`[Audnexus] Looking up author by name ${name}`)
const authorAsinObjs = await this.authorASINsRequest(name, region)
let closestMatch = null
authorAsinObjs.forEach((authorAsinObj) => {
authorAsinObj.levenshteinDistance = levenshteinDistance(authorAsinObj.name, name)
if (!closestMatch || closestMatch.levenshteinDistance > authorAsinObj.levenshteinDistance) {
closestMatch = authorAsinObj
}
})
if (!closestMatch || closestMatch.levenshteinDistance > maxLevenshtein) {
return null
}
const author = await this.authorRequest(closestMatch.asin)
if (!author) {
return null
}
return {
asin: author.asin,
description: author.description,
image: author.image || null,
name: author.name
}
}
getChaptersByASIN(asin, region) {
Logger.debug(`[Audnexus] Get chapters for ASIN ${asin}/${region}`)
return axios
.get(`${this.baseUrl}/books/${asin}/chapters?region=${region}`)
.then((res) => {
return res.data
})
.catch((error) => {
Logger.error(`[Audnexus] Chapter ASIN request failed for ${asin}/${region}`, error)
return null
})
}
}
module.exports = Audnexus