fix: exclude external service documents from main client type generation (#31)

External service document files were being incorrectly included in the main
client type generation and validated against the local server schema, causing
validation failures when external service queries referenced fields not present
in the local schema.

This fix enhances the scanDocs function to filter out documents that match
external service document patterns, ensuring they are only validated against
their respective external schemas.

Resolves GraphQL Document Validation errors like:
- Cannot query field "countries" on type "Query"
- Cannot query field "country" on type "Query"

Author: productdevbook

src/utils/index.ts

@@ -173,9 +173,34 @@ export async function scanSchemas(nitro: Nitro) {
 
 export async function scanDocs(nitro: Nitro) {
   const files = await scanDir(nitro, nitro.options.rootDir, nitro.graphql.dir.client, '**/*.graphql')
-  // Filter out files in the external directory
+
+  // Get external service document patterns to filter out
+  const externalServices = nitro.options.graphql?.externalServices || []
+  const externalPatterns = externalServices.flatMap(service => service.documents || [])
+
+  // Filter out files in the external directory and files matching external service patterns
   return files
     .filter(f => !f.path.startsWith('external/'))
+    .filter((f) => {
+      // Check if this file matches any external service document patterns
+      const relativePath = f.path
+
+      for (const pattern of externalPatterns) {
+        // Remove the leading 'app/graphql/' from patterns to match relative paths
+        const cleanPattern = pattern.replace(/^app\/graphql\//, '')
+
+        // Extract directory name from pattern for matching
+        const patternDir = cleanPattern.split('/')[0]
+        const fileDir = relativePath.split('/')[0]
+
+        // If the file is in a directory that's part of an external service pattern, exclude it
+        if (patternDir === fileDir) {
+          return false
+        }
+      }
+
+      return true
+    })
     .map(f => f.fullPath)
 }