refactor: Externalize all template JavaScript to asset files

core/scripts/webpanel/assets/js/config.js

@@ -0,0 +1,95 @@
+document.addEventListener('DOMContentLoaded', function () {
+    const mainContent = document.querySelector('.content-wrapper > div');
+    const GET_FILE_URL = mainContent.dataset.getFileUrl;
+    const SET_FILE_URL = mainContent.dataset.setFileUrl;
+
+    const saveButton = document.getElementById("save-button");
+    const restoreButton = document.getElementById("restore-button");
+    const container = document.getElementById("jsoneditor");
+
+    const editor = new JSONEditor(container, {
+        mode: "code",
+        onChange: validateJson
+    });
+
+    function validateJson() {
+        try {
+            editor.get();
+            updateSaveButton(true);
+            hideErrorMessage();
+        } catch (error) {
+            updateSaveButton(false);
+            showErrorMessage("Invalid JSON! Please correct the errors.");
+        }
+    }
+
+    function updateSaveButton(isValid) {
+        saveButton.disabled = !isValid;
+        saveButton.style.cursor = isValid ? "pointer" : "not-allowed";
+        saveButton.style.setProperty('background-color', isValid ? "#28a745" : "#ccc", 'important');
+        saveButton.style.setProperty('color', isValid ? "#fff" : "#666", 'important');
+    }
+
+    function showErrorMessage(message) {
+        Swal.fire({
+            title: "Error",
+            text: message,
+            icon: "error",
+            showConfirmButton: false,
+            timer: 5000,
+            position: 'top-right',
+            toast: true,
+            showClass: { popup: 'animate__animated animate__fadeInDown' },
+            hideClass: { popup: 'animate__animated animate__fadeOutUp' }
+        });
+    }
+
+    function hideErrorMessage() {
+        Swal.close();
+    }
+
+    function saveJson() {
+        Swal.fire({
+            title: 'Are you sure?',
+            text: 'Do you want to save the changes?',
+            icon: 'warning',
+            showCancelButton: true,
+            confirmButtonText: 'Yes, save it!',
+            cancelButtonText: 'Cancel',
+            reverseButtons: true
+        }).then((result) => {
+            if (result.isConfirmed) {
+                fetch(SET_FILE_URL, {
+                    method: "POST",
+                    headers: { "Content-Type": "application/json" },
+                    body: JSON.stringify(editor.get())
+                })
+                .then(() => {
+                    Swal.fire('Saved!', 'Your changes have been saved.', 'success');
+                })
+                .catch(error => {
+                    Swal.fire('Error!', 'There was an error saving your data.', 'error');
+                    console.error("Error saving JSON:", error);
+                });
+            }
+        });
+    }
+
+    function restoreJson() {
+        fetch(GET_FILE_URL)
+            .then(response => response.json())
+            .then(json => {
+                editor.set(json);
+                Swal.fire('Success!', 'Your JSON has been loaded.', 'success');
+            })
+            .catch(error => {
+                Swal.fire('Error!', 'There was an error loading your JSON.', 'error');
+                console.error("Error loading JSON:", error);
+            });
+    }
+
+    saveButton.addEventListener('click', saveJson);
+    restoreButton.addEventListener('click', restoreJson);
+
+    restoreJson();
+});