// Opus calls OnInit to initialize the script add-in
function OnInit(initData) {
  initData.name = "Test Name Refresh";
  initData.desc = "Adds columns defined by regex search against filenames.";
  initData.copyright = "playful & contributors 2015";
  initData.min_version = "11.5.1"
  initData.version = "0.9.2";
  initData.default_enable = true;
  var ColumnPrefix = "REFRESH.";

// Add all columns (create ScriptColumn objects via AddColumn()
  for(var key in columns) {
      if (columns.hasOwnProperty(key)) {
       var column = columns[key];
       var cmd = initData.AddColumn();
       cmd.autorefresh = true;     
       cmd.namerefresh = true;
       cmd.defsort =  1 ;     
       cmd.defwidth =  (typeof column.width === 'undefined') ? 5 : column.width;     
       cmd.header = key;
       cmd.label = ColumnPrefix + key;
       cmd.method = "OnRegexColumn";
       cmd.name = key;
       cmd.type = null;
   }
  }
} // End OnInit


// Define Three Columns

var columns = { 
'Title' :    { 
    // The title (stripping [the keys=values] )
    pattern: /^(?:[^ ]| (?!\[))*/,
    width: 30
    },

'Min' :  { 
    // Duration, e.g. 120
    // acceptable aliases for key: min, dur, duration
    pattern: /\[(?:[^\]]+_)?(?:min|dur(?:ation)?)=([^\]_]+)/i,
    group: 1,
    width: 3,
    },
'Year' :  { 
    // What year was it released?
    // acceptable aliases for key: y, yr, year
    pattern: /\[(?:[^\]]+_)?y(?:(?:ea)?r)?=([^\]_]+)/i,
    group: 1,
    width: 4,
    }
    
 };
 
 


function OnRegexColumn(ColumnData) {
  // OnRegexColumn is an OnScriptColumn method
  // See http://www.gpsoft.com.au/help/opus11/index.html#!Documents/Scripting/OnScriptColumn.htm
  // ColumnData is a ScriptColumnData object
  // See http://www.gpsoft.com.au/help/opus11/index.html#!Documents/Scripting/ScriptColumnData.htm
  var colName = ColumnData.col;
  if(!columns[colName]) return;

  var regexMatch;
  var subject = ColumnData.item["name_stem"];;
         
  regexMatch = columns[colName].pattern.exec(subject);

  if (regexMatch != null)    {
         // display the value for the correct capture group
         var capturegroup = (typeof columns[colName].group === 'undefined') ? 0 : columns[colName].group;
         ColumnData.value = regexMatch[capturegroup];
    }  // regexmatch  
} // OnRegexColumn