fix: update prompt handling in completions to remove unnecessary whitespace

[CoolSpring8]

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Fixed text prediction behavior to accurately process empty input fields. The feature now sends the exact current input content as the prompt, improving handling when no initial text is provided.

[coderabbitai]

Walkthrough

The prompt handling in the text-prediction flow was modified to send the exact current textContent as the prompt instead of defaulting to a single space when textContent is empty. This changes the initial input sent to the model for text completion and alters stream behavior for empty inputs.

Changes

Cohort / File(s)	Summary
Prompt handling in text prediction src/App.tsx	Removed fallback to space character; now sends exact textContent value as prompt to model, affecting initial content generation behavior when input is empty

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Verify the intended behavior change when textContent is empty (no fallback placeholder)
• Check if downstream model handling properly accommodates empty string prompts
• Confirm stream behavior and output expectations for edge cases with empty input

Possibly related PRs

• feat: add text completion mode #8: Modifies the same text prediction flow in src/App.tsx around textContent-based completion logic.

Suggested labels

codex

Poem

🐰 A prompt now flows without its safety space,
The exact text takes center stage,
No space to fill the empty place—
The model reads a blank page.
Change made swift, one file refined,
New behavior, carefully designed! ✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: removing unnecessary whitespace from prompt handling in the completions flow, which aligns with the AI-generated summary.
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
• Commit unit tests in branch empty-prompt-extra-space

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between cf53b40 and e4146e6.

📒 Files selected for processing (1)

• src/App.tsx (1 hunks)

🔇 Additional comments (1)

src/App.tsx (1)

375-375: No changes needed. The OpenAI completions API accepts empty string prompts.

When no prompt is provided, the model behaves as if starting a new document (using the <|endoftext|> separator), so sending an empty textContent as the prompt will not cause a runtime error. The change is API-compatible.

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