mirror of
https://github.com/murdos/musicbrainz-userscripts
synced 2024-12-13 20:02:27 +00:00
255 lines
9.8 KiB
JavaScript
255 lines
9.8 KiB
JavaScript
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// MusicBrainz Import helper functions
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/*
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* How to use this module?
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*
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* - First build a release object (see expected format below) that you'll fill in from source of data
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* - Call as follows, e.g.:
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* var parameters = MBReleaseImportHelper.buildFormParameters(parsedRelease, optionalEditNote);
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* - Then build the HTML that you'll inject into source site page:
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* var formHtml = MBReleaseImportHelper.buildFormHTML(parameters);
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* - Addinionally, you can inject a search link to verify that the release is not already known by MusicBrainz:
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* var linkHtml = MBReleaseImportHelper.buildSearchLink(parsedRelease);
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*
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* Expected format of release object:
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*
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* release = {
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* title,
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* artist_credit,
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* type,
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* status,
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* language,
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* script,
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* packaging,
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* country,
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* year,
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* month,
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* day,
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* labels = [ { name, mbid, catno }, ... ],
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* barcode,
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* urls = [ {url, link_type }, ... ],
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* discs = [
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* {
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* title,
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* format,
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* tracks = [
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* { number, title, duration, artist_credit },
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* ...
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* ]
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* },
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* ...
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* ],
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* }
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*
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* where 'artist_credit' has the following format:
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*
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* artist_credit = [
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* {
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* credited_name,
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* artist_name,
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* artist_mbid,
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* joinphrase
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* },
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* ...
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* ]
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*
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*/
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var MBReleaseImportHelper = (function() {
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// --------------------------------------- publics ----------------------------------------- //
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var url_types = {
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purchase_for_download: 74,
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download_for_free: 75,
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stream_for_free: 85,
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license: 301,
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purchase_for_mail_order: 79
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}
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// compute HTML of search link
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function fnBuildSearchLink(release) {
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var totaltracks = 0;
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for (var i=0; i < release.discs.length; i++) {
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totaltracks += release.discs[i].tracks.length;
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}
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var release_artist = "";
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for (var i=0; i < release.artist_credit.length; i++) {
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var ac = release.artist_credit[i];
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release_artist += ac.artist_name;
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if (typeof ac.joinphrase != 'undefined' && ac.joinphrase != "") {
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release_artist += ac.joinphrase;
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} else {
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if (i != release.artist_credit.length-1) release_artist += ", ";
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}
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}
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var innerHTML = '<a href="http://musicbrainz.org/search?query=artist%3A(' + luceneEscape(release_artist) + ')%20release%3A(' + luceneEscape(release.title) + ')%20tracks%3A(' + totaltracks + ')';
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if(release.country) innerHTML += '%20country:'+release.country;
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innerHTML += '&type=release&advanced=1">Search in MusicBrainz</a>';
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return innerHTML;
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}
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// compute HTML of import form
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function fnBuildFormHTML(parameters) {
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// Build form
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var innerHTML = '<form action="http://musicbrainz.org/release/add" method="post" target="_blank" accept-charset="UTF-8" charset="' + document.characterSet + '">';
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parameters.forEach(function(parameter) {
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var value = parameter.value + "";
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innerHTML += "<input type='hidden' value='" + value.replace(/'/g,"'") + "' name='" + parameter.name + "'/>";
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});
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innerHTML += '<input type="submit" value="Import into MB">';
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innerHTML += '</form>';
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return innerHTML;
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}
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// build form POST parameters that MB is waiting
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function fnBuildFormParameters(release, edit_note) {
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// Form parameters
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var parameters = new Array();
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appendParameter(parameters, 'name', release.title);
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// Release Artist credits
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buildArtistCreditsFormParameters(parameters, "", release.artist_credit);
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if (release["secondary_types"]) {
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for (var i=0; i < release.secondary_types.length; i++) {
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appendParameter(parameters, 'type', release.secondary_types[i]);
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}
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}
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appendParameter(parameters, 'type', release.type);
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appendParameter(parameters, 'status', release.status);
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appendParameter(parameters, 'language', release.language);
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appendParameter(parameters, 'script', release.script);
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appendParameter(parameters, 'packaging', release.packaging);
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// ReleaseGroup
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appendParameter(parameters, 'release_group', release.release_group_mbid);
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// Date + country
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appendParameter(parameters, 'country', release.country);
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if (!isNaN(release.year) && release.year != 0) { appendParameter(parameters, 'date.year', release.year); };
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if (!isNaN(release.month) && release.month != 0) { appendParameter(parameters, 'date.month', release.month); };
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if (!isNaN(release.day) && release.day != 0) { appendParameter(parameters, 'date.day', release.day); };
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// Barcode
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appendParameter(parameters, 'barcode', release.barcode);
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// Label + catnos
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for (var i=0; i < release.labels.length; i++) {
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var label = release.labels[i];
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appendParameter(parameters, 'labels.'+i+'.name', label.name);
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appendParameter(parameters, 'labels.'+i+'.mbid', label.mbid);
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if (label.catno != "none") {
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appendParameter(parameters, 'labels.'+i+'.catalog_number', label.catno);
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}
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}
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// URLs
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for (var i=0; i < release.urls.length; i++) {
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var url = release.urls[i];
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appendParameter(parameters, 'urls.'+i+'.url', url.url);
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appendParameter(parameters, 'urls.'+i+'.link_type', url.link_type);
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}
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// Mediums
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for (var i=0; i < release.discs.length; i++) {
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var disc = release.discs[i];
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appendParameter(parameters, 'mediums.'+i+'.format', disc.format);
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appendParameter(parameters, 'mediums.'+i+'.name', disc.title);
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// Tracks
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for (var j=0; j < disc.tracks.length; j++) {
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var track = disc.tracks[j];
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appendParameter(parameters, 'mediums.'+i+'.track.'+j+'.number', track.number);
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appendParameter(parameters, 'mediums.'+i+'.track.'+j+'.name', track.title);
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var tracklength = (typeof track.duration != 'undefined' && track.duration != '') ? track.duration : "?:??";
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appendParameter(parameters, 'mediums.'+i+'.track.'+j+'.length', tracklength);
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buildArtistCreditsFormParameters(parameters, 'mediums.'+i+'.track.'+j+'.', track.artist_credit);
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}
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}
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// Add Edit note parameter
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appendParameter(parameters, 'edit_note', edit_note);
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return parameters;
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}
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// Convert a list of artists to a list of artist credits with joinphrases
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function fnArtistCredits(artists_list) {
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var artists = artists_list.map(function(item) { return {artist_name: item}; });
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if (artists.length > 2) {
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var last = artists.pop();
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last.joinphrase = '';
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var prev = artists.pop();
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prev.joinphrase = ' & ';
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for (var i = 0; i < artists.length; i++) {
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artists[i].joinphrase = ', ';
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}
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artists.push(prev);
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artists.push(last);
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} else if (artists.length == 2) {
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artists[0].joinphrase = ' & ';
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}
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return artists;
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}
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// Try to guess release type using number of tracks, title and total duration (in secs)
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function fnGuessReleaseType(title, num_tracks, duration) {
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if (num_tracks < 1 || duration < 60) return '';
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var has_single = !!title.match(/\bsingle\b/i);
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var has_EP = !!title.match(/\bEP\b/i);
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if (has_single && has_EP) {
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has_single = false;
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has_EP = false;
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}
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if (((has_single && num_tracks <= 4) || num_tracks <= 2) && duration <= 11*60) return 'single';
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if ((has_EP || num_tracks <= 6) && duration <= 30*60) return 'EP';
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if (duration > 30*60 && num_tracks > 6) return 'album';
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return '';
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}
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// --------------------------------------- privates ----------------------------------------- //
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function appendParameter(parameters, paramName, paramValue) {
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if(!paramValue) return;
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parameters.push( { name: paramName, value: paramValue } );
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}
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function luceneEscape(text) {
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var newtext = text.replace(/[-[\]{}()*+?~:\\^!"]/g, "\\$&");
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return newtext.replace("&&", "\&&").replace("||", "\||");
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}
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function buildArtistCreditsFormParameters(parameters, paramPrefix, artist_credit) {
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if(!artist_credit) return;
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for (var i=0; i < artist_credit.length; i++) {
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var ac = artist_credit[i];
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appendParameter(parameters, paramPrefix+'artist_credit.names.'+i+'.name', ac.credited_name);
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appendParameter(parameters, paramPrefix+'artist_credit.names.'+i+'.artist.name', ac.artist_name);
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appendParameter(parameters, paramPrefix+'artist_credit.names.'+i+'.mbid', ac.mbid);
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if (typeof ac.joinphrase != 'undefined' && ac.joinphrase != "") {
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appendParameter(parameters, paramPrefix+'artist_credit.names.'+i+'.join_phrase', ac.joinphrase);
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}
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}
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}
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// ---------------------------------- expose publics here ------------------------------------ //
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return {
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buildSearchLink: fnBuildSearchLink,
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buildFormHTML: fnBuildFormHTML,
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buildFormParameters: fnBuildFormParameters,
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makeArtistCredits: fnArtistCredits,
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guessReleaseType: fnGuessReleaseType,
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URL_TYPES: url_types
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};
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})();
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