Inline definitions in openapi can overwrite classes

What are you generating using Kiota, clients or plugins?

API Client/SDK

In what context or format are you using Kiota?

Linux executable

Client library/SDK language

PHP

Describe the bug

Generating coded in PHP, when in the openapi we have a definition of a component (B) inside another component (A) the class name is generated concatenating parent component with underscores (A_B). This generated name can collide with the name of another component, so the generated class overwrites the existing one.

For example, in we have an openapi with a component test_case and a component test, that includes another component called case. "definitions": { "test_case": { "properties": { "name": { "example": 1, "type": "integer" }, "uuid": { "example": "e22e3261-2bcf-4ca8-acc7-819cf9f19548", "type": "string" } }, "type": "object" }, "test": { "properties": { "case": { "properties": { "name2": { "example": 2, "type": "integer" }, "uuid2": { "example": "6d5b5321-c25c-4dbb-a3e1-da0a506131d2", "type": "string" } } } }, "type": "object" } }

When we generate code, we have only two classes:

• Test
• Test_case The class Test_case has been generated for component case having properties name2 and uuid2, but overwritten by the generation of component test_case having properties name and uuid eventually, so we have lost the functionality of component case.

Class name generation for inline components should check if a class already exists and, in that case, rename it.

Expected behavior

In the example: "definitions": { "test_case": { "properties": { "name": { "example": 1, "type": "integer" }, "uuid": { "example": "e22e3261-2bcf-4ca8-acc7-819cf9f19548", "type": "string" } }, "type": "object" }, "test": { "properties": { "case": { "properties": { "name2": { "example": 2, "type": "integer" }, "uuid2": { "example": "6d5b5321-c25c-4dbb-a3e1-da0a506131d2", "type": "string" } } } }, "type": "object" } }

After generation code, we should have 3 classes instead of only 2:

• Test
• Test_case
• Test_case1 (or any other name different from the existing Test_case)

How to reproduce

Use the attached openapi description and generate code in PHP.

Open API description file

{
  "basePath": "/api",
  "consumes": [
    "application/json",
    "application/hal+json"
  ],
  "info": {
      "contact": {
        "name": "Test",
        "url": "https://test.lan"
      },
      "title": "ONTAP REST API Online Reference",
      "version": "v1"
    },
  "paths": {
    "/tests_cases": {
      "get": {
        "responses": {
          "200": {
            "description": "OK",
            "schema": {
              "$ref": "#/definitions/test_case"
            }
          }
        }
      }
    },
    "/tests": {
      "get": {
        "responses": {
          "200": {
            "description": "OK",
            "schema": {
              "$ref": "#/definitions/test"
            }
          }
        }
      }
    }
  },
  "produces": [
    "application/json",
    "application/hal+json"
  ],
  "schemes": [
    "https"
  ],
  "security": [
    {
      "simple": []
    }
  ],
  "securityDefinitions": {
    "simple": {
      "type": "basic"
    }
  },
  "swagger": "2.0",
  "definitions": {
    "test_case": {
      "properties": {
        "name": {
          "example": 1,
          "type": "integer"
        },
        "uuid": {
          "example": "e22e3261-2bcf-4ca8-acc7-819cf9f19548",
          "type": "string"
        }
      },
      "type": "object"
    },
    "test": {
      "properties": {
        "case": {
          "properties": {
            "name2": {
              "example": 2,
              "type": "integer"
            },
            "uuid2": {
              "example": "6d5b5321-c25c-4dbb-a3e1-da0a506131d2",
              "type": "string"
            }
          }
        }
      },
      "type": "object"
    }
  }
}

Kiota Version

1.21.0

Latest Kiota version known to work for scenario above?(Not required)

No response

Known Workarounds

No response

Configuration

• OS: Ubuntu 22.04

Debug output

</details>


### Other information

_No response_