protect some functions to run in wrong config mode

src/checkDifferences.ts

@@ -3,11 +3,15 @@ import path from 'node:path';
 import { mapLimit } from 'async';
 import { compareImages } from './compare/compare';
 import { log } from './log';
-import { config } from './config';
+import { config, isPlatformModeConfig } from './config';
 import type { ShotItem } from './types';
-import { shallGenerateMeta } from './utils';
+import { featureNotSupported, shallGenerateMeta } from './utils';
 
 export const checkDifferences = async (shotItems: ShotItem[]) => {
+  if (isPlatformModeConfig(config)) {
+    return featureNotSupported('checkDifferences()');
+  }
+
   log.process(
     'info',
     'general',

src/compare/compare.ts

@@ -2,7 +2,8 @@ import { readFileSync, writeFileSync } from 'node:fs';
 import pixelmatch from 'pixelmatch';
 import { compare as odiffCompare } from 'odiff-bin';
 import { PNG } from 'pngjs';
-import { config } from '../config';
+import { config, isPlatformModeConfig } from '../config';
+import { featureNotSupported } from '../utils';
 import { resizeImage } from './utils';
 
 export const checkThreshold = (
@@ -158,6 +159,10 @@ export const compareImages = async (
   pixelDifferencePercentage: number;
   isWithinThreshold: boolean;
 }> => {
+  if (isPlatformModeConfig(config)) {
+    return featureNotSupported('compareImages()');
+  }
+
   if (config.compareEngine === 'pixelmatch') {
     return compareImagesViaPixelmatch(
       threshold,

src/utils.ts

@@ -306,3 +306,13 @@ export const hashFile = (filePath: string): string => {
 
   return hashBuffer(file);
 };
+
+export const featureNotSupported = (feature: string) => {
+  log.process(
+    'error',
+    'general',
+    `${feature} is not supported in this configuration mode`,
+  );
+
+  process.exit(1);
+};