implement enable disable with client side display and mod

public/js/js.js

@@ -20,6 +20,7 @@ function upsert() {
          console.log("error upserting:", status, body)
       }
    }
+   console.log("to upsert", jsonifyForm("upsert"))
    http("POST", "/api/job/upsert", cb, jsonifyForm("upsert"))
 }
 
@@ -27,6 +28,7 @@ function jsonifyForm(id) {
    var form = document.getElementById(id)
    var entries = new FormData(form).entries();
    var json = Object.assign(...Array.from(entries, ([x,y]) => ({[x]:y})));
+   json.disabled = json.disabled == "false"
    var s = JSON.stringify(json)
    return s
 }
@@ -67,15 +69,19 @@ function format(job) {
          </span>
       `
    })
+   var strikethrough = "initial"
+   if (job.disabled) 
+      strikethrough = "line-through"
+   strikethrough = "text-decoration: "+strikethrough
    return `<tr><td><details>
       <summary name="${job.id}">
-         <span>${job.title}</span>
+         <span style="${strikethrough}">${job.title}</span>
          <span>${passing}</span>
          ${buttons}
       </summary>
       <table>
          <tr><td>
-            <code>${job.cron}</code>
+            <code style="${strikethrough}">${job.cron}</code>
             <code>${job.language}</code>
          </td></tr>
          <tr><td>
@@ -126,7 +132,14 @@ function jobmodify(input) {
 }
 
 function jobdelete(input) {
-   http("DELETE", "/api/job/delete", cb, null)
+   var job = jobFromInput(input)
+   if (!confirm(`Delete the job "${job.title}"?`))
+      return
+   function cb(body, status) {
+      var tr = getJobElement(job.id)
+      tr.parentNode.removeChild(tr)
+   }
+   http("DELETE", "/api/job/delete/"+job.id, cb, null)
 }
 
 function jobrefresh(input) {
@@ -154,6 +167,20 @@ function jobrefresh(input) {
    http("GET", "/api/job/get/"+job.id, cb, null)
 }
 
+function getJobElement(id) {
+   var table = getJobsTable()
+   var summaries = Array.from(table.getElementsByTagName("summary"))
+   var target = null
+   summaries.forEach(function(e) {
+      if (e.getAttribute("name") == id) {
+         e = e.parentElement
+         e = e.parentElement.parentElement
+         target = e
+      }
+   })
+   return target
+}
+
 function jobFromInput(input) {
    var b64 = input.getAttribute("job")
    var json = atob(b64)