GC content calculation

export.js

@@ -194,7 +194,7 @@ async function chatUI(div){ // cerate a simple chat div
     let selectRole=document.createElement('select')
     selectRole.id = "selectRole"
     div.appendChild(selectRole);
-    ['system','user','assistant'].forEach(r=>{
+    ['system','user','assistant','function'].forEach(r=>{
         let opt = document.createElement('option')
         selectRole.appendChild(opt)
         opt.value=r
@@ -329,6 +329,9 @@ async function chatUI(div){ // cerate a simple chat div
                     if(x.choices[0].finish_reason=="function_call"){
                         console.log(`function_call:`,x)
                         let msg=x.choices[0].message
+                        msg.role="function"
+                        msg.name=msg.function_call.name
+                        delete msg.function_call
                         msgs.push(msg)
                         // show result in the UI
                         // continue back to the loop

functions/testFunctions.mjs

@@ -77,6 +77,30 @@ const fetchUCSC = {   // at NCI Shady Grove
     }
 };
 
+function funGCcontent(parms){
+    parms = parms||{
+        sequence:'AGAAGGAAAACGGGAAACTTCACAATTAGTGAATATTTAAAAACAGACTCTTAAGAAACCAAAGGATCAAGGAAGATACCACAGGGAAAAATAGAGAATA'
+    }
+    // calculate GC funGCcontent
+    let GClength = parms.sequence.toUpperCase().split('').filter(x=>(x=='G'|x=='C')).length
+    let seqLength = parms.sequence.length
+    return `GC content is ${GClength}/${seqLength} = ${GClength/seqLength}`
+}
+
+const defGCcontent={
+    "name": "funGCcontent",
+    "description": "calculate the GC content of a DNA sequence",
+    "parameters": {
+        "type":"object",
+        "properties":{
+            "sequence":{
+                "type":"string",
+                "description":"a DNA or genomic sequence, composed with four letters: A, C, G, and T"
+            }
+        }
+    }
+}
+
 async function rankSumTest(parms){
     // lets do t-test to warm things up
     parms=parms||{
@@ -124,5 +148,7 @@ export{
     fetchUCSC,
     funFetchUCSC,
     rankSumTest,
-    rankSumTestDescription
+    rankSumTestDescription,
+    funGCcontent,
+    defGCcontent
 }