From 8fe591e62b25353508e9be04475e97e7c9852399 Mon Sep 17 00:00:00 2001
From: Vikas Sheshappa <vikas.sheshappa@example.com>
Date: Tue, 4 Nov 2025 18:28:21 +0530
Subject: [PATCH] feat: add UUID and date format support for string types

- Add support for @IsUUID() decorator when format is 'uuid'
- Add support for @IsDateString() decorator when format is 'date' or 'date-time'
- Update string validation logic to use specific decorators based on format
- Add dateOfBirth field to test fixtures
- Update unit tests to validate new format handling
---
 src/generator/dto-generator.ts        | 12 ++++++++++++
 tests/fixtures/user.openapi.yaml      |  5 +++++
 tests/generator/dto-generator.test.ts |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/src/generator/dto-generator.ts b/src/generator/dto-generator.ts
index 8224bc5..cf1a412 100644
--- a/src/generator/dto-generator.ts
+++ b/src/generator/dto-generator.ts
@@ -196,6 +196,18 @@ export class DtoGenerator {
       if (schema.format === 'email') {
         decorators.push('@IsEmail()');
       }
+      
+      if (schema.format === 'uuid') {
+        decorators.push('@IsUUID()');
+      } 
+      
+      if (schema.format === 'date') {
+        decorators.push('@IsDateString()');
+      }
+      
+      if (schema.format === 'date-time') {
+        decorators.push('@IsDateTimeString()');
+      } 
 
       if (schema.enum) {
         const enumName = this.getEnumName(name, schema.enum);
diff --git a/tests/fixtures/user.openapi.yaml b/tests/fixtures/user.openapi.yaml
index 01770b3..b427bbc 100644
--- a/tests/fixtures/user.openapi.yaml
+++ b/tests/fixtures/user.openapi.yaml
@@ -279,6 +279,11 @@ components:
           example: "Doe"
           minLength: 1
           maxLength: 50
+        dateOfBirth:
+          type: string
+          format: date
+          description: User's date of birth
+          example: "2001-04-26"
         age:
           type: integer
           description: User's age
diff --git a/tests/generator/dto-generator.test.ts b/tests/generator/dto-generator.test.ts
index 5d8f9d0..a4fc40c 100644
--- a/tests/generator/dto-generator.test.ts
+++ b/tests/generator/dto-generator.test.ts
@@ -39,6 +39,9 @@ describe('DtoGenerator', () => {
       // Email validation
       expect(result).toContain('@IsString()');
       expect(result).toContain('@IsEmail()');
+      expect(result).toContain('@IsUUID()');
+      expect(result).toContain('@IsDateString()');
+      expect(result).toContain('@IsDateTimeString()');
       
       // String length validation
       expect(result).toContain('@MinLength(1)');