CFG: Don't inject anything when guidance scale doesn't exist

If the guidance scale is 1, completely disable sending CFG and creating
a negative prompt.

Signed-off-by: kingbri <bdashore3@proton.me>

public/script.js

@@ -2741,6 +2741,12 @@ async function Generate(type, { automatic_trigger, force_name2, resolve, reject,
             // Fetches the combined prompt for both negative and positive prompts
             const cfgGuidanceScale = getGuidanceScale();
             function getCombinedPrompt(isNegative) {
+                // Only return if the guidance scale doesn't exist or the value is 1
+                // Also don't return if constructing the neutral prompt
+                if (isNegative && (!cfgGuidanceScale || cfgGuidanceScale?.value === 1)) {
+                    return;
+                }
+
                 let finalMesSend = [...mesSend];
                 let cfgPrompt = {};
                 if (cfgGuidanceScale && cfgGuidanceScale?.value !== 1) {
@@ -2754,7 +2760,7 @@ async function Generate(type, { automatic_trigger, force_name2, resolve, reject,
                                 ? cfgPrompt.value
                                 : ` ${cfgPrompt.value}`;
                     } else {
-                        // TODO: Switch from splice method to insertion depth method
+                        // TODO: Make all extension prompts use an array/splice method
                         finalMesSend.splice(mesSend.length - cfgPrompt.depth, 0, `${cfgPrompt.value}\n`);
                     }
                 }

public/scripts/extensions/cfg/index.js

@@ -348,7 +348,7 @@ jQuery(async () => {
             .filter(":checked")
             .map(function() { return parseInt($(this).val()) })
             .get()
-            .filter((e) => e !== NaN) || [];
+            .filter((e) => !Number.isNaN(e)) || [];
 
         chat_metadata[metadataKeys.prompt_combine] = values;
         saveMetadataDebounced();

public/scripts/extensions/cfg/util.js

@@ -39,10 +39,12 @@ export function getGuidanceScale() {
         };
     }
 
-    return {
-        type: cfgType.global,
-        value: extension_settings.cfg.global.guidance_scale
-    };
+    if (extension_settings.cfg.global && extension_settings.cfg.global?.guidance_scale !== 1) {
+        return {
+            type: cfgType.global,
+            value: extension_settings.cfg.global.guidance_scale
+        };
+    }
 }
 
 // Gets the CFG prompt

public/scripts/textgen-settings.js

@@ -234,10 +234,6 @@ async function generateTextGenWithStreaming(generate_data, signal) {
 }
 
 export function getTextGenGenerationData(finalPrompt, this_amount_gen, isImpersonate, cfgValues) {
-    if (cfgValues?.guidanceScale?.value === 1) {
-        cfgValues = null;
-    }
-
     return {
         'prompt': finalPrompt,
         'max_new_tokens': this_amount_gen,