[dart-dio] Fix webhook imports generating Map-style strings

[Lutra-Fs]

Webhook operations were generating broken import statements with Map-style representation and HTML entity encoding:
import '{import=model.Pet, classname=Pet}';

Instead of proper Dart package imports:
import 'package:my-package/src/model/pet.dart';

This occurred because DartDioClientCodegen.postProcessOperationsWithModels() applied import processing to regular operations, but postProcessWebhooksWithModels() was missing the same logic.

Fix:

• Extracted shared import processing logic into processImports() method, just like C#
• Added postProcessWebhooksWithModels() override to apply same logic
• Both operations and webhooks now use consistent import generation

Test:

• Added verifyWebhookImports() test using existing webhooks.yaml resource
• Verifies generated code does not contain Map-style imports
• Verifies generated code does not contain HTML entity encoding

Closes #22586

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Summary by cubic

Fixes broken Dart Dio webhook imports that were emitted as Map-style, HTML-encoded strings. Webhooks now generate proper package imports and compile correctly. Fixes #22586.

• Bug Fixes
  • Extracted shared import logic into processImports() and applied it in postProcessWebhooksWithModels() to mirror operations.
  • Added verifyWebhookImports test to ensure no Map-style or HTML-encoded imports.

^{Written for commit 2dd599c. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 2 files

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java">

<violation number="1" location="modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java:750">
P1: Imports are being put on `OperationMap` instead of the parent `OperationsMap`/`WebhooksMap`. The `OperationMap` class doesn&#39;t have imports accessors, while `OperationsMap` and `WebhooksMap` do. This breaks the data structure contract and likely causes template rendering issues. The method signature should accept the parent map to put imports on the correct level.</violation>
</file>

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[Copilot]

Pull request overview

This PR fixes a critical bug in the dart-dio generator where webhook operations produced invalid Dart import statements containing Map-style representations and HTML entity encoding instead of proper package imports. The fix extracts shared import processing logic and ensures webhooks receive the same treatment as regular API operations.

Key Changes:

• Extracted import processing logic into a shared processImports() method to eliminate code duplication
• Added postProcessWebhooksWithModels() override to apply import processing to webhook operations
• Fixed a typo in an existing comment ("Uin8List" → "Uint8List")

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
DartDioClientCodegen.java	Refactored import processing into shared processImports() method and added webhook support via postProcessWebhooksWithModels() override
DartDioClientCodegenTest.java	Added verifyWebhookImports() test to verify webhooks generate valid Dart imports without Map-style syntax or HTML entity encoding

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