// ==UserScript==
// @name          Lakeland Library Coop Inventory Lookup
// @namespace     http://brianandmegan.com/stuff
// @description	  Search West Michigan's Lakeland Library Coop Catalog from Amazon book listings.
// @include       http://*.amazon.*
// ==/UserScript==

(function() {

mainmatch = window._content.location.href.match(/\/(\d{9}[\d|X])\//);
if (mainmatch){
	var isbn = mainmatch[1];
	var table_contents = "<table><TR><TD>Location</td><TD>Status</td></tr>";
	var boldsans = document.evaluate(
		"//div[@class='buying']",
		document,
		null,
		XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
		null
	)

	//alert("ok, we've looked for the spot at amazon.com to drop content");

	if (boldsans.snapshotLength) {
  		if (isbn)  {
			// search all locations and find the book 
			// Step 1: find the book (do they ahve it anywhere)
			//alert("and finding the isbn worked: " + isbn);
			var table_content = '';
  			GM_xmlhttpRequest( { 
				method:"POST", 
				url:'http://lakenet.llcoop.org/search/a?a&searchtype=i&searcharg=' + isbn + '&searchscope=1',
				data:'',
    		      	 	onload:function(responseDetails) {
					var content = responseDetails.responseText;
					var arrContent = content.split("\n");
					//alert( " content has " + content.length + ' length');
					//alert( " arrContent has " + arrContent.length + ' length');

					table_content = "<BR><table style='border: 1px solid black;'><TR><TD colspan=2><B>Lakeland Library Cooperative Inventory Lookup:</td></tr><TR><TD>Location</td><TD>Status</td></tr>";
					
					for (var i=0; i < arrContent.length; i++) {
						if ( arrContent[i].match(/<tr\s+class="bibItemsEntry">/) ) {
							// inside a TR entry right now
							var found=0;
							var this_row = '<TR>';
							while (i<arrContent.length) {
								if ( arrContent[i].match(/<!-- field 1 -->&nbsp;\s+(.+)/) ) {
									//alert(" line number " + i + " contains a field: " + arrContent[i]);
									// this is the location
									arrContent[i].replace(/.+field 1 -->&nbsp;\s+/,'');
									//this_row = this_row + "<TD style='background-color: #ff0000;'>" + arrContent[i] + "</td>";
									this_row = this_row + arrContent[i];

									// this is the status
									i = i + 3; 
									arrContent[i].replace(/.+-->&nbsp;\s+/,'');
									arrContent[i].replace(/<\/td>/,'');
									arrContent[i].replace(/<\/tr>/,'');
									//this_row = this_row + "<TD style='background-color: #00ff00;'>" + arrContent[i] + "</td>";
									this_row = this_row + arrContent[i];
								}
								i++;
							}
							this_row = this_row + '</tr>';
							table_content = table_content + this_row;
						}
					}

					table_content = table_content + '</table>';
					boldsans.snapshotItem(0).innerHTML = boldsans.snapshotItem(0).innerHTML + table_content;
					//alert('tabe content = ' + table_content);
      				}	
			});
		}	
	}
}

})();