This commit fixes a bug where the method updateExpTextProcessingTime incorrectly called getExpImgProcessingTime. The change ensures that text and image processing times are tracked independently.

Description

Fixes a bug in updateExpTextProcessingTime() where it incorrectly calls getExpImgProcessingTime() instead of getExpTextProcessingTime(). This causes database type conflicts when processing text generation tasks.

The Bug

File: lib/Service/OpenAiAPIService.php
Line: 850

The function reads image processing time configuration when it should read text processing time configuration:

public function updateExpTextProcessingTime(int $runtime): void {
    $oldTime = floatval($this->getExpImgProcessingTime());  // ❌ Wrong method
    // ...
}

This causes a mismatch between:

• Read: openai_image_generation_time / localai_image_generation_time
• Write: openai_text_generation_time / localai_text_generation_time

Impact

Error Message

RuntimeException: OpenAI/LocalAI request failed: conflict with value type from database

When it Occurs

• Background job processing for TaskProcessing text generation tasks
• All text-based AI operations (FreePrompt, Summary, Headline, etc.)
• Both OpenAI and LocalAI endpoints affected

Affected Versions

• Introduced in v3.6.0 (commit e1ffaba - "psalm fixes", April 4, 2025)
• Present in all subsequent versions through current v4.2.0

The Fix

Change line 850 to call the correct method:

  public function updateExpTextProcessingTime(int $runtime): void {
-     $oldTime = floatval($this->getExpImgProcessingTime());
+     $oldTime = floatval($this->getExpTextProcessingTime());
      $newTime = (1.0 - Application::EXPECTED_RUNTIME_LOWPASS_FACTOR) * $oldTime + Application::EXPECTED_RUNTIME_LOWPASS_FACTOR * floatval($runtime);

Root Cause

Copy-paste error when updateExpTextProcessingTime() was created. The corresponding updateExpImgProcessingTime() method (line 774) correctly calls getExpImgProcessingTime(), but this pattern wasn't updated for the text processing variant.

Testing

The fix ensures:

1. Text processing time metrics are properly tracked
2. No database type conflicts when reading/writing config values
3. Proper exponential moving average calculation for text generation times

Reproduction

1. Configure LocalAI or OpenAI endpoint
2. Trigger any text generation task via Assistant
3. Background job worker processes the task
4. Error occurs when trying to update processing time metrics

Stack Trace Context

File: /var/www/html/lib/private/TaskProcessing/Manager.php:949
  -> OCA\OpenAi\TaskProcessing\TextToTextProvider->process()

File: /var/www/html/apps-external/integration_openai/lib/TaskProcessing/TextToTextProvider.php:135
  -> RuntimeException: OpenAI/LocalAI request failed: conflict with value type from database

Checklist

• Bug fix (non-breaking change which fixes an issue)
• Tested locally
• One-line change, minimal risk
• No new dependencies
• Maintains backward compatibility