fix kafka producer members filter to properly display completions for kafka producer

[senithkay]

Purpose

The value serializer dropdown in kafka:Producer was missing several serializer options.
This prevented users from selecting certain serializer types (e.g., SER_AVRO) when typing prefixes such as SER_.

This PR resolves wso2/product-ballerina-integrator#1983

Goals

• Ensure that valid serializer options appear in the value serializer dropdown.
• Improve the accuracy and completeness of the completion suggestions.

Approach

The issue was caused by the completion filtering logic excluding valid completion types.
To fix this, the filter was updated to allow completions where:

• completion.kind === 'enum-member'

This ensures that serializer-related suggestions are included in the completions.

Summary by CodeRabbit

• Bug Fixes
  • Enhanced autocomplete suggestions in the expression editor to include enum members when a prefix is provided during code editing.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

The change modifies the completion filter logic in ChipExpressionEditor to include enum-member kinds when a prefix is provided. Previously, enum-members were excluded from completions; now they are treated alongside functions, variables, and fields during prefix matching.

Changes

Cohort / File(s)	Change Summary
Completion Filter Enhancement workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/ChipExpressionEditor/utils.ts	Modified the completion filter to include enum-member kinds when a prefix is supplied, allowing enum values to appear in filtered completions alongside functions, variables, and fields.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

• Verify that the enum-member kind addition doesn't introduce unintended completions in other contexts
• Confirm the filter logic correctly handles empty prefix scenarios (should return only fields as before)
• Validate that the change resolves the kafka:Producer value serializer dropdown issue mentioned in #1983

Possibly related PRs

• fix completions not appearing for record field access #832: Modifies the same completion-filtering logic in ChipExpressionEditor/utils.ts, changing allowed kinds and empty-prefix behavior.

Suggested reviewers

• hevayo
• gigara
• kanushka

Poem

🐰 A humble enum hid in the shadows, unseen,
Until the filter's heart grew keen,
Now SER_AVRO dances in the dropdown's light,
The rabbit's fix makes the serializer right! ✨

Pre-merge checks and finishing touches

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly addresses the main change: enabling kafka producer serializer completions by fixing the filter logic.
Description check	✅ Passed	The description includes Purpose, Goals, and Approach sections as required by template, though most optional sections are omitted.
Linked Issues check	✅ Passed	The PR directly addresses issue #1983 by allowing enum-member completions for kafka producer serializers, matching the reported requirement.
Out of Scope Changes check	✅ Passed	The change is narrowly scoped to fixing the completion filter for enum-member kinds in kafka producer serializer dropdowns, aligning with the linked issue.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/ChipExpressionEditor/utils.ts (1)

145-150: Re-evaluate whether enum members should also appear when no prefix is present

When prefix is falsy, the filter still returns only kind === 'field'. For the value serializer dropdown, that means enum members won’t show up until the user starts typing. If the UX expectation is to see all serializer options immediately on opening the dropdown (even before typing), consider including enum-member in the no-prefix branch as well.

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a333bcf and 2a9b951.

📒 Files selected for processing (1)

• workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/ChipExpressionEditor/utils.ts (1 hunks)

🧰 Additional context used

🧠 Learnings (1)

📚 Learning: 2025-11-24T22:16:28.380Z

Learnt from: dan-niles
Repo: wso2/vscode-extensions PR: 980
File: workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/RichTextTemplateEditor/RichTextTemplateEditor.tsx:384-412
Timestamp: 2025-11-24T22:16:28.380Z
Learning: In the RichTextTemplateEditor component (workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/RichTextTemplateEditor/RichTextTemplateEditor.tsx), token fetching on external `value` prop changes is intentionally disabled. Users cannot edit both the minimized and expanded editors simultaneously, so tokens only need to be generated based on user typing in the expanded editor view, not on external prop updates.

Applied to files:

• workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/ChipExpressionEditor/utils.ts

🔇 Additional comments (1)

workspaces/ballerina/ballerina-side-panel/src/components/editors/MultiModeExpressionEditor/ChipExpressionEditor/utils.ts (1)

152-155: Enum-member inclusion in prefix-based filtering looks correct

Allowing completion.kind === 'enum-member' in the prefix filter aligns with the goal of surfacing enum-based serializers (e.g., SER_AVRO) when the user types a prefix like SER_. The case-insensitive startsWith check is consistent with the existing pattern and should cover the reported kafka:Producer scenario.

Please double-check that the completion items for Kafka serializer values actually come through with kind === 'enum-member' (and not e.g. enumMember or another variant) in the @wso2/ui-toolkit CompletionItem type, just to avoid a silent mismatch.