From 3cc622876c39ec7e4aef259ffb0ba9810aa56bed Mon Sep 17 00:00:00 2001
From: Maxi Redigonda <maxiredigonda@gmail.com>
Date: Wed, 14 Nov 2018 20:39:42 -0300
Subject: [PATCH] Adds mentions-parser lib app, used to parse ticket numbers
 preceded by a hashtag and transform them to links

---
 client/src/lib-app/mentions-parser.js | 53 +++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 client/src/lib-app/mentions-parser.js

diff --git a/client/src/lib-app/mentions-parser.js b/client/src/lib-app/mentions-parser.js
new file mode 100644
index 00000000..81579c57
--- /dev/null
+++ b/client/src/lib-app/mentions-parser.js
@@ -0,0 +1,53 @@
+const PARSING_TEXT = 0;
+const PARSING_MENTION = 1;
+
+class MentionsParser {
+
+    parse(text) {
+        let parsingLink = false;
+        let parsingType = PARSING_TEXT;
+        let parsingSegment = '';
+        let ans = '';
+
+        for(let index = 0; index < text.length; ++index){
+            let character = text[index];
+
+            if(character == '#'){
+                ans += this.compileSegment(parsingSegment, parsingType);
+
+                parsingLink = true;
+                parsingType = PARSING_MENTION;
+                parsingSegment = '';
+            } else if(!this.isAlphanumeric(character) && parsingLink){
+                ans += this.compileSegment(parsingSegment, parsingType);
+
+                parsingLink = false;
+                parsingType = PARSING_TEXT;
+                parsingSegment = character;
+            } else {
+                parsingSegment += character;
+            }
+        }
+
+        ans += this.compileSegment(parsingSegment, parsingType);
+
+        return ans;
+    }
+
+    isAlphanumeric(string){
+        return /[a-zA-Z0-9]/.test(string);
+    }
+ 
+    compileSegment(segment, parsingType){
+        switch(parsingType){
+            case PARSING_TEXT:
+                return segment;
+            case PARSING_MENTION:
+                return '<a href=' + root + '/admin/panel/tickets/view-ticket/' + segment + '>#' + segment + '</a>';
+            default:
+                return '';
+        }
+    }
+};
+
+export default new MentionsParser;