delete point from db on delete button pressed

main.js

@@ -7,10 +7,6 @@
 // @match        https://rst.runcity.org/*/cp_mgmt*
 // @icon         https://www.google.com/s2/favicons?sz=64&domain=runcity.org
 // @grant        none
-// @require https://code.jquery.com/jquery-3.7.1.min.js
-// @require https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js
-// @require https://api.mapbox.com/mapbox.js/plugins/leaflet-fullscreen/v1.0.1/Leaflet.fullscreen.min.js
-// @require https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js
 // ==/UserScript==
 
 (function () {
@@ -113,18 +109,35 @@
     document.head.appendChild(css)
   }
 
+  function addJs(link) {
+    let script = document.createElement("script")
+    script.src = link
+    document.head.appendChild(script)
+  }
+
   function isEditCpPage() {
     let params = new URLSearchParams(document.location.search)
     return params.get("action") === "edit"
   }
 
-  async function sendData(formData) {
+  function isDeleteCpPage() {
+    let params = new URLSearchParams(document.location.search)
+    return params.get("action") === "delete"
+  }
+  
+  async function updatePoint(formData) {
     return await fetch(`https://runcity.geo.rictum.ru/api/competitions/${window.location.pathname.split('/')[1]}/update`, {
       method: 'POST',
       body: formData
     })
   }
 
+  async function deletePoint() {
+    return await fetch(`https://runcity.geo.rictum.ru/api/points/${new URLSearchParams(location.search).get("cp_id")}`, {
+      method: 'DELETE'
+    })
+  }
+
   function copyCoordinates() {
     let copyButton = document.createElement("button")
     copyButton.addEventListener("click", async event => {
@@ -214,7 +227,7 @@
     let normalInputName = fileInputs[inputName]
     formData.set(`cp[id]`, document.querySelector("input[name='cp[id]']").value)
     formData.set(`cp[${normalInputName}]`, "-1")
-    let result = await sendData(formData)
+    let result = await updatePoint(formData)
     try {
       console.log(result.ok)
     }
@@ -652,7 +665,7 @@
       formData.set(`propname[${prop.name}]`, propName)
     }
 
-    let result = await sendData(formData)
+    let result = await updatePoint(formData)
 
     try {
       console.log(result.ok)
@@ -1070,7 +1083,7 @@
     }
   `
 
-  /* HEAD */
+  /* REDIRECTS */
 
   let justCreated = localStorage.getItem(localStorageItems.JUST_CREATED)
   let prevCreated = localStorage.getItem(localStorageItems.PREV_CREATED)
@@ -1082,7 +1095,7 @@
     formData.set("cp[id]", new URLSearchParams(document.location.search).get("cp_id"))
     formData.set("cp[number]", document.querySelector(`input[name="cp[number]"]`).value)
     formData.set("update_id", true)
-    sendData(formData).then(() => localStorage.removeItem(localStorageItems.NEED_UPDATE_ID))
+    updatePoint(formData).then(() => localStorage.removeItem(localStorageItems.NEED_UPDATE_ID))
   }
 
   if (exit) {
@@ -1109,19 +1122,46 @@
     localStorage.removeItem(localStorageItems.LONGITUDE)
   }
 
+  /* HEAD */
+
   let styleSheet = document.createElement("style")
   styleSheet.textContent = styles
   document.head.appendChild(styleSheet)
 
-  addCss("https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css")
+  /* SWITCH FOR DIFFERENT PAGES */
-  addCss('https://api.mapbox.com/mapbox.js/plugins/leaflet-fullscreen/v1.0.1/leaflet.fullscreen.css')
-  addCss("https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.css")
 
+  if (isDeleteCpPage()) {
+    let deleteButton = document.querySelector(`input[name="delete_go"]`)
+    let pseudoDeleteButton = document.createElement("button")
+    pseudoDeleteButton.type = "button"
+    pseudoDeleteButton.textContent = deleteButton.value
+    pseudoDeleteButton.classList.add("unsafe-action", "pseudo-save")
+    pseudoDeleteButton.addEventListener("click", async () => {
+      await deletePoint()
+      deleteButton.click()
+    })
+
+    deleteButton.style.display = "none"
+    deleteButton.parentElement.insertBefore(pseudoDeleteButton, deleteButton)
+    
+    return
+  }
 
   if (!isEditCpPage()) {
     return
   }
 
+  /* action=edit HEAD */
+
+  addJs("https://code.jquery.com/jquery-3.7.1.min.js")
+  addJs("https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js")
+  addJs("https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js")
+  addJs('https://api.mapbox.com/mapbox.js/plugins/leaflet-fullscreen/v1.0.1/Leaflet.fullscreen.min.js')
+
+  addCss("https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css")
+  addCss('https://api.mapbox.com/mapbox.js/plugins/leaflet-fullscreen/v1.0.1/leaflet.fullscreen.css')
+  addCss("https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.css")
+
   /* NEW DEFALUT VALUES */
 
   document.querySelector(`#props input[name="new_file_type1"][value="l"]`).click()
@@ -1379,6 +1419,7 @@
   container.appendChild(bottomButtonsContainer)
 
   /* MAP */
+  if (map !== undefined && L !== undefined) {
     let content = document.querySelector("#content")
     let contentWrapper = document.createElement("div")
     contentWrapper.id = "content-wrapper"
@@ -1398,6 +1439,7 @@
       map.setView(new L.LatLng(parseFloat(lat), parseFloat(lon)), 16)
     })
     document.querySelector("#map_controls").appendChild(panToCenter)
+  }
 
   /* DIALOG */
   let dialog = document.createElement("dialog")