From 7da109f1a693176ff2a51d01448306f6518a3df7 Mon Sep 17 00:00:00 2001
From: Colin <csteidtmann@pinterest.com>
Date: Mon, 22 Jul 2024 15:33:21 -0700
Subject: [PATCH] initial commit, added highlight lines if url has params

---
 static/application.js | 39 ++++++++++++++++++++++++++++-----------
 static/index.html     | 36 +++++++++++++++++++++++++++++++++---
 2 files changed, 61 insertions(+), 14 deletions(-)

diff --git a/static/application.js b/static/application.js
index 370bc74..8aef747 100644
--- a/static/application.js
+++ b/static/application.js
@@ -19,6 +19,7 @@ haste_document.prototype.htmlEscape = function(s) {
 // Get this document from the server and lock it here
 haste_document.prototype.load = function(key, callback, lang) {
   var _this = this;
+  var selectedLines = this.app.selectedLines;
   $.ajax(_this.app.baseUrl + 'documents/' + key, {
     type: 'get',
     dataType: 'json',
@@ -27,20 +28,35 @@ haste_document.prototype.load = function(key, callback, lang) {
       _this.key = key;
       _this.data = res.data;
       try {
-        var high;
-        if (lang === 'txt') {
-          high = { value: _this.htmlEscape(res.data) };
+        var high = { value: "" };
+        var lines = res.data.split("\n");
+        for (var i = 0; i < lines.length; i++) {
+          if (lang === "txt") {
+            highlighted = _this.htmlEscape(res.data);
+          } else if (lang) {
+            highlighted = hljs.highlight(lang, lines[i]).value;
+          } else {
+            var highlightedData = hljs.highlightAuto(lines[i]);
+            high.language = highlightedData.language;
+            highlighted = highlightedData.value;
+          }
+      
+          var currentLine = i + 1;
+          if (
+            currentLine >= selectedLines.startLine &&
+            currentLine <= selectedLines.endLine
+          ) {
+            highlighted =
+              '<span style="background-color: yellow;">' + highlighted + "</span>";
+          }
+      
+          highlighted = "<span id='line-" + i + "'>" + highlighted + "</span>";
+          high.value += highlighted + "\n";
         }
-        else if (lang) {
-          high = hljs.highlight(lang, res.data);
-        }
-        else {
-          high = hljs.highlightAuto(res.data);
-        }
-      } catch(err) {
+      } catch (err) {
         // failed highlight, fall back on auto
         high = hljs.highlightAuto(res.data);
-      }
+      }      
       callback({
         value: high.value,
         key: key,
@@ -104,6 +120,7 @@ var haste = function(appName, options) {
     $('#box2 .twitter').hide();
   };
   this.baseUrl = options.baseUrl || '/';
+  this.selectedLines = options.selectedLines;
 };
 
 // Set the page title - include the appName
diff --git a/static/index.html b/static/index.html
index 840fb6b..41a87ff 100644
--- a/static/index.html
+++ b/static/index.html
@@ -19,7 +19,7 @@
 			var handlePop = function(evt) {
 				var path = evt.target.location.href;
 				if (path === app.baseUrl) { app.newDocument(true); }
-				else { app.loadDocument(path.split('/').slice(-1)[0]); }
+				else { app.loadDocument(path.split('#')[0].split('/').slice(-1)[0]); }
 			};
 			// Set up the pop state to handle loads, skipping the first load
 			// to make chrome behave like others:
@@ -29,11 +29,41 @@
 					try { handlePop(evt); } catch(err) { /* not loaded yet */ }
 				};
 			}, 1000);
+			
+			
+			/**
+			 * Function to parse the URL fragment and extract line numbers
+			 * @returns {Object} Object with parsed startLine, endLine
+			 */
+			function getSelectedLinesFromURL() {
+				const urlHash = window.location.hash.substring(1); // Remove the '#' from the hash
+				if (!urlHash) return {}; // Return an empty object if there's no hash
+
+				// Parse the hash into start and end parts
+				const range = urlHash.split("L");
+				let start, end;
+
+				if (range.length > 2) {
+					start = parseInt(range[1], 10);
+					end = parseInt(range[2], 10);
+				} else {
+					start = parseInt(range[1], 10);
+					end = start;
+				}
+				return {
+					startLine: start,
+					endLine: end,
+				};
+			}
+			
 			// Construct app and load initial path
 			$(function() {
-				var baseUrl = window.location.href.split('/');
+				var baseUrl = window.location.href.split('#')[0].split('/');
 				baseUrl = baseUrl.slice(0, baseUrl.length - 1).join('/') + '/';
-				app = new haste('hastebin', { twitter: true, baseUrl: baseUrl });
+				console.log(baseUrl);
+				const selectedLines = getSelectedLinesFromURL();
+				console.log(selectedLines);
+				app = new haste('hastebin', { twitter: true, baseUrl: baseUrl, selectedLines: selectedLines });
 				handlePop({ target: window });
 			});
 		</script>