Resolving article images

lib/validation.js

@@ -39,6 +39,21 @@ export const BLOG_POST_SCHEMA = {
       maxLength: 50,
     },
   },
+  thumbnail: {
+    type: "object",
+    required: false,
+    default: null,
+    properties: {
+      vertical: {
+        type: "string",
+        required: false,
+      },
+      horizontal: {
+        type: "string",
+        required: false,
+      },
+    },
+  },
 };
 
 /**
@@ -81,12 +96,12 @@ export function validateBlogPost(frontmatter) {
       if (config.type === "string" && typeof frontmatter[field] === "string") {
         if (config.minLength && frontmatter[field].length < config.minLength) {
           errors.push(
-            `Field ${field} must be at least ${config.minLength} characters`,
+            `Field ${field} must be at least ${config.minLength} characters`
           );
         }
         if (config.maxLength && frontmatter[field].length > config.maxLength) {
           errors.push(
-            `Field ${field} must be no more than ${config.maxLength} characters`,
+            `Field ${field} must be no more than ${config.maxLength} characters`
           );
         }
       }
@@ -105,12 +120,12 @@ export function validateBlogPost(frontmatter) {
           }
           if (config.items.minLength && item.length < config.items.minLength) {
             errors.push(
-              `Item ${i} in ${field} must be at least ${config.items.minLength} characters`,
+              `Item ${i} in ${field} must be at least ${config.items.minLength} characters`
             );
           }
           if (config.items.maxLength && item.length > config.items.maxLength) {
             errors.push(
-              `Item ${i} in ${field} must be no more than ${config.items.maxLength} characters`,
+              `Item ${i} in ${field} must be no more than ${config.items.maxLength} characters`
             );
           }
         }
@@ -134,7 +149,12 @@ export function sanitizeBlogPost(frontmatter) {
 
   for (const [field, config] of Object.entries(BLOG_POST_SCHEMA)) {
     if (frontmatter[field] !== undefined) {
-      sanitized[field] = frontmatter[field];
+      // Special handling for thumbnail object
+      if (field === "thumbnail" && typeof frontmatter[field] === "object") {
+        sanitized[field] = frontmatter[field];
+      } else {
+        sanitized[field] = frontmatter[field];
+      }
     } else if (config.default !== undefined) {
       sanitized[field] = config.default;
     }