MediaWiki:Common.js/Wikinews:Article principal/leadGenerator

importScriptURI('//en.wikinews.org/w/index.php?title=user:Bawolff/mwapilib2.js&action=raw&ctype=text/javascript');
if (!window.Bawolff) {
 window.Bawolff = {};
}
// //en.wikinews.org/w/api.php?action=query&prop=revisions&titles=template:Lead%20article%201|template:Lead%20article%202|template:Lead%20article%203|template:Lead%20article%204|template:Lead%20article%205&rvprop=timestamp|content
//Call as Bawolff.leadGen(pageName, 1, alert)
//replacing 1 with which lead (1-5), alert with your callback
//optionally takes summary method (as numeric) argument. choose 0-4
Bawolff.leadGen = function (title, leadNumb, callback, summaryMethod) {
 api(title).getPage().lift(Bawolff.leadGen.extract, title, summaryMethod).lift(Bawolff.leadGen.create, leadNumb).lift(callback, title).exec();
}


/********
This is a list that maps categories/infboxes to generic images

Note: the category map only works with categories explicity included. it does not count categories included by templates
Note: this does not consider templates with parameters

*****/
Bawolff.leadGen.imgMap = { "Brésil": "Flag of Brazil.svg",
 "Canada": "Flag of Canada.svg",
 "États-Unis d'Amérique": "Flag of the United States.svg",
 "France": "Flag of France.svg",
 "Informatique": "Computer-aj aj ashton 01.svg",
 "Mexique": "Flag of Mexico.svg",
 "Nécrologie": "Wikinews tag obituary.png",
 "Ontario": "Flag of Ontario.svg",
 "Québec": "Flag of Quebec.svg",
 "Royaume-Uni": "Flag of the United Kingdom.svg",
 "Football": "Wikinews-football.svg",
 "Science et technologie": "Science-symbol-2.svg" }

//takes the source of a wikipage, extracts the first image name without the leading namespace
Bawolff.leadGen.extractImg = function (page) {
 var imgRegex = /\[\[(?:[iI][mM][aA][gG][eE]\:|[fF][Ii][lL][eE]\:|[Ff][Ii][cC][hH][iI][eE][rR]\:)((?:[^\|\]])*?\.[pPsSjJgG][nNvVpPiI][gGeEfF][gG]?)[\|\]]?/;
 var img = imgRegex.exec(page);
 if (img && img.length >= 2) {
  return img[1];
 }
 else {

  var infoboxRegex = /\{\{([^|}]*)\}\}/g;
  var categoryRegex = /\[\[[cC]at[eé]gor[yi]e?:([^|\]]*)(?:\|[^\]]*)?\]\]/g;
  //js seems to reuse these objects from prev calls without reseting lastIndex. reset lastIndex.
  infoboxRegex.lastIndex = categoryRegex.lastIndex = 0;
  var item; //note doesn't match infoboxes w/params

  while (item = infoboxRegex.exec(page)) {
   item = item[1];
   item = item.charAt(0).toUpperCase() + item.substring(1, item.length);
   if (Bawolff.leadGen.imgMap[item]) return Bawolff.leadGen.imgMap[item];
  }
  while (item = categoryRegex.exec(page)) {
   item = item[1];
   item = item.charAt(0).toUpperCase() + item.substring(1, item.length);
   if (Bawolff.leadGen.imgMap[item]) return Bawolff.leadGen.imgMap[item];
  }

  return "Wikinews-logo.png"; //default
 // return "";
 } 

}

Bawolff.leadGen.extractAudio = function (page) {
//Version audio|Ares I-X lancement réussi.ogg
 var res = page.match(/\{\{[vV]ersion audio\|([^|}]*)\|?[^}]*\}\}/);
 if (res) return res[1];
 return "";
}
Bawolff.leadGen.extractDate = function (page) {
 var ress = page.match(/\{\{[Dd]ate\|([^|}]*)\|?[^}]*\}\}/);
 if (ress) return ress[1];
 return "";
}
Bawolff.leadGen.extractType = function (page) {
 //valid types are: breaking, special, original, exclusive, urgent or none.
 //this currently does not detect special or urget.
 if (page.match(/\{\{[eE]n(?: cours)?\}\}/)) {
  return "breaking";
 }
 else if (page.match(/\{\{[iI]nterview(?:\|[^}]*)?\}\}/i)) {
  return "exclusive";
 }
 else if (page.match(/\{\{[rR]eportage(?: original)?(?:\|[^}]*)?\}\}/i)) {
  return "original";
 }
 else {
  //default
  return "none";
 } 

}

Bawolff.leadGen.takeIntro = function (pageText, method) {
 //first test for redirects.
 var isRedirect = pageText.match(/^#redirect\s?\[\[([^\]]*)\]\]/i)
 if (isRedirect) {
  alert("Il semble que vous essayez d\'utiliser la création d\'articles principaux sur un page de redirection. Utiliser s\'il vous plaît le nom réel de la page au lieu de (" + isRedirect[1] + ").");
  throw new Error("La page est une redirection. Merci de résoudre manuellement à : " + isRedirect[1] );
 }

 //doesn't handle links that make [1].
 //intentionally doesn't strip ' chars (bold or italic)
 //as this often marks thigs with periods (E. coli)
 //method is a number (must be a number. no type conversion preformed).
 // 0: 1st sentence
 // 1: 1st two senetences
 // 2: 1st paragraph
 // 3: 1st 250 characters (+ a couple so we don't end in middle of word), or paragraph
 // 4: 1st 500 characters-ish, or paragraph
 var fixWLink = /\{\{[wW]\|([^\}]+)\}\}/g
 var fixformatnum = /\{\{formatnum\:([^\}]+)\}\}/g
 var stripTemplates = /\{\{[^\}\{]*(?:\{\{[^\}\{]*(?:\{\{[^\}\{]*(?:\{\{[^\}\{]*\}\})?\}\})?\}\})?\}\}/g;
 var stripCitations = /\{\{(?:"\s?"|Guil|Citation1?)\|([^}]*)\}\}/g; //note: this misinterperts template:""
 var stripRefs = /\<ref[^>]*\>[\s\S]*?\<\/ref>/g;
 //the img regex, looks for a start of the image, than checks for nested internal links, external links, and for ending ]] in caption
 //templates shold already be stripped at this point. (fr image = Fichier)
 var img = /\[\[[IifF][mMIi][aALlcC][GgEehH][eEiI]?[eE]?[rR]?\:(?:\[\[(?:[^\]]*)\]\]|[^\]]|\](?!\]))*]]/g

 //note, these are run multiple times to deal with nesting.
 pageText = pageText.replace(fixWLink, '[[$1]]');
 pageText = pageText.replace(fixformatnum, '[[$1]]');
 pageText = pageText.replace(stripCitations, '« $1 »');
 pageText = pageText.replace(stripCitations, '« $1 »');
 pageText = pageText.replace(stripTemplates, '');
 pageText = pageText.replace(stripTemplates, '');
 pageText = pageText.replace(stripTemplates, '');
 pageText = pageText.replace(stripTemplates, '');
 pageText = pageText.replace(stripRefs, '');
 pageText = pageText.replace(img, '');
 var pipedLink = /\[\[[^\]\|]*\|([^\]\|]*)\]\]/g;
 pageText = pageText.replace(pipedLink, '$1');
 var normLink = /\[\[([^\]\|]*)\]\]/g;
 pageText = pageText.replace(normLink, '$1');
 var extLink = /\[(?:http|ftp|gopher|irc|https)\:[^\]\s]*\s?([^\]]*)]/g
 pageText = pageText.replace(extLink, '$1');
 var firstPar;
 switch (method) {
  case 1: //1st 2 sentence or 1st paragraph
   firstPar = /[^\n]+?\s[^\s\.]*\.(?=\s)(?:[^\n]+?\s[^\s\.]*\.(?=\s)|(?=\s))/;
   pageText = pageText.match(firstPar)[0];
   break;
  case 2: //1st paragraph
   firstPar = /[^\n]+?(?=\n)/;
   pageText = pageText.match(firstPar)[0];
   break;
  case 3: // 1st 250 characters-ish
   firstPar = /[^\n]{2,250}.*?\b/;
   pageText = pageText.match(firstPar)[0] + "...";
   break;
  case 4: //1st 500 characters-ish
   firstPar = /[^\n]{2,500}.*?\b/;
   pageText = pageText.match(firstPar)[0] + "...";
   break;
  default: //aka case 0. 1st sentence
   firstPar = /[^\n]+?\s[^\s\.]*\.(?=\s)/;
   pageText = pageText.match(firstPar)[0];
   break;
 }
 return pageText;
}

Bawolff.leadGen.extract = function(pageText, pageName, summaryMethod) {
//editlink is overriden later.
return { width:'200',
         image: Bawolff.leadGen.extractImg(pageText),
         title: pageName,
         synopsis: Bawolff.leadGen.takeIntro(pageText, summaryMethod),
         edit_this: 'Wikinews:Bac_à_sable',
         audio: Bawolff.leadGen.extractAudio(pageText),
         date: Bawolff.leadGen.extractDate(pageText)
         };
}


Bawolff.leadGen.create = function (leadObj, leadNumb) {
 var res = '{' + '{Article principal';
 res += "\n |modif=Modèle:Une " + leadNumb; <!-- Ne pas changer -->
 res += "\n |Image=" + leadObj.image;
 res += "\n |Image width=" + leadObj.width;
 res += "\n |Image text="; //default to blank for now.
 res += "\n |bordure=1";
 res += "\n |thème="; //default to blank for now.
 res += "\n |thème nom="; //default to blank for now.
 res += "\n |date=" + leadObj.date;
 res += "\n |Titre=" + leadObj.title;
 res += "\n |audio=" + leadObj.audio;
 res += "\n |Synopsis=" + leadObj.synopsis;
 res += "\n}}<noinclude>\n{{"
 res += "Modèle:Article principal/Documentation}}</noinclude>";
 return res;
}
//calls its argument giving it an object with meta info about the current leads.
//probably want to use Bawolff.leadGen.makeLeadTable instead.

Bawolff.leadGen.makeLeadMetaObject = function (callback) {
 var leadObj = function (doc) {
  var exTitle = function (text) {
   text = text.replace(/[\s\S]*?\|Titre=([^\|]*)[\s\S]*/, '$1');
   text = text.replace(/\s*$/, '');
   return text;
  }
  var pages = doc.getElementsByTagName('page');

  var obj = {}, time, time2 = Infinity;
  for (var i = 0; i < pages.length; i++) {
   pages[i].getElementsByTagName('rev')[0].normalize();
   time = Bawolff.mwapi.parseAPIDate(pages[i].getElementsByTagName('rev')[0].getAttribute('timestamp'));
   //This is really ugly...
   //put the oldest lead in a global variable.
   if (time < time2) { //this compares miliseconds after epoch
    Bawolff.leadGen.oldestLead = pages[i].getAttribute('title');
    time2 = time;
   }
   obj[pages[i].getAttribute('title')] = {timestamp: time,
   title: exTitle(pages[i].getElementsByTagName('rev')[0].firstChild.data)};
  }
  return obj;
 }
 api().makeRequest({action: 'query', prop: 'revisions', titles: 'Modèle:Une 1|Modèle:Une 2|Modèle:Une 3', prop: 'revisions', rvprop: 'timestamp|content', redirects: true}, leadObj).lift(callback).exec();
}


Bawolff.leadGen.oldestLead = null;
Bawolff.leadGen.makeLeadTable = function (callback) {
 var wrapper = function(leadObj) {
  var html = '<table class="wikitable"><caption>Articles principaux actuels</caption>';
  html += '<thead><tr><th>#</th><th>Position</th><th>Article</th><th>Âge</th></tr></thead><tbody>';
  for (var i in leadObj) {
   if (leadObj.hasOwnProperty(i)) {
    var numb = i.charAt(i.length - 1);
    html += '<tr><th>';
    html += numb; //last character
    html += '</th><td>';
    html += Bawolff.leadGen.leadToPosition(numb);
    html += '</td><td>';
    html += leadObj[i].title;
    html += '</td><td>';
    var time = leadObj[i].timestamp.getTime(); //convert to miliseconds
    var d = (new Date).getTime();
    var delta = Math.round((d - time) / (1000*60*60));
    var timeStr;
    if (delta === 1) {
     timeStr = delta + ' heure';
    }
    else {
     timeStr = delta + ' heures';
    }
    html += timeStr;
    html += "</td></tr>";
   }
  }
  html += '</tbody></table>';
  callback(html);
 }
 Bawolff.leadGen.makeLeadMetaObject(wrapper);
}

Bawolff.leadGen.leadToPosition = function (numb) {
//double equal sign intentional to convert from string.
 if (numb == 1 || numb === 'e') {
  return "En haut";
 }
 if (numb == 2) {
  return "Milieu";
 }
 if (numb == 3) {
  return "En bas";
 }
 else {
  throw new Error("Chiffre de l\'article principal invalide (" + numb +") trasmis à Bawolff.leadGen.leadToPosition");
 }
}