Automatic category from expense title (#80)

* environment variable

* random category draft

* get category from ai

* input limit and documentation

* use watch

* use field.name

* prettier

* presigned upload, readme warning, category to string util

* prettier

* check whether feature is enabled

* use process.env

* improved prompt to return id only

* remove console.debug

* show loader

* share class name

* prettier

* use template literals

* rename format util

* prettier

2 files changed, 12 insertions, 2 deletions

diff --git a/src/lib/env.ts b/src/lib/env.ts
index f1d59db..927e756 100644
--- a/src/lib/env.ts
+++ b/src/lib/env.ts
@@ -19,6 +19,7 @@ const envSchema = z
     S3_UPLOAD_REGION: z.string().optional(),
     S3_UPLOAD_ENDPOINT: z.string().optional(),
     NEXT_PUBLIC_ENABLE_RECEIPT_EXTRACT: z.coerce.boolean().default(false),
+    NEXT_PUBLIC_ENABLE_CATEGORY_EXTRACT: z.coerce.boolean().default(false),
     OPENAI_API_KEY: z.string().optional(),
   })
   .superRefine((env, ctx) => {
@@ -36,11 +37,15 @@ const envSchema = z
           'If NEXT_PUBLIC_ENABLE_EXPENSE_DOCUMENTS is specified, then S3_* must be specified too',
       })
     }
-    if (env.NEXT_PUBLIC_ENABLE_RECEIPT_EXTRACT && !env.OPENAI_API_KEY) {
+    if (
+      (env.NEXT_PUBLIC_ENABLE_RECEIPT_EXTRACT ||
+        env.NEXT_PUBLIC_ENABLE_CATEGORY_EXTRACT) &&
+      !env.OPENAI_API_KEY
+    ) {
       ctx.addIssue({
         code: ZodIssueCode.custom,
         message:
-          'If NEXT_PUBLIC_ENABLE_RECEIPT_EXTRACT is specified, then OPENAI_API_KEY must be specified too',
+          'If NEXT_PUBLIC_ENABLE_RECEIPT_EXTRACT or NEXT_PUBLIC_ENABLE_CATEGORY_EXTRACT is specified, then OPENAI_API_KEY must be specified too',
       })
     }
   })
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index d0b32e2..39477d1 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -1,3 +1,4 @@
+import { Category } from '@prisma/client'
 import { clsx, type ClassValue } from 'clsx'
 import { twMerge } from 'tailwind-merge'
 
@@ -15,3 +16,7 @@ export function formatExpenseDate(date: Date) {
     timeZone: 'UTC',
   })
 }
+
+export function formatCategoryForAIPrompt(category: Category) {
+  return `"${category.grouping}/${category.name}" (ID: ${category.id})`
+}