Feature Request: Add OpenAI AutoComplete/Rewrite Support with User-Managed API Key.

[imlolman]

Issue Description:

Background:
As a popular webmail client, RainLoop has been the go-to solution for many users and organizations who prefer to manage their email communication via a web interface. With the fast-paced growth of AI technologies, integrating an AI-powered autocomplete and rewrite feature can significantly enhance user experience and productivity.

Feature Request:
I propose to add OpenAI's AutoComplete and Rewrite support to RainLoop webmail. OpenAI's GPT-based models have been known for their excellent natural language understanding and generation capabilities. This integration will allow users to draft and respond to emails more efficiently and accurately.

Benefits:

• Enhanced user experience: The autocomplete feature will help users draft emails faster by suggesting the most suitable words or phrases as they type.
• Improved accuracy: With OpenAI's Rewrite support, users can fix grammatical errors and improve sentence clarity, leading to better communication.
• Time-saving: Both autocomplete and rewrite features will save users time, allowing them to focus on other essential tasks.
• Competitive advantage: By integrating cutting-edge AI features, RainLoop will differentiate itself from other webmail clients and attract more users.

Implementation:
The implementation can be done in several steps:

• Add an option in the settings menu for users to input their OpenAI API key, allowing them to manage the cost of using the autocomplete and rewrite features themselves.
• Add a button in CKEditor to rewrite the email, which will fetch an automated reply by sending the email content and its context (previous emails in the thread) to the OpenAI API and update the draft with the received suggestion.
• Integrate OpenAI API calls for the autocomplete feature, which will be triggered as users type within the CKEditor. Provide a list of word or phrase suggestions based on the current context of the email draft.
• Implement a caching mechanism to store recent API responses for a limited time, reducing redundant API calls and further managing the cost of OpenAI API usage.
• Add a settings option to configure the sensitivity level of the autocomplete and rewrite features, allowing users to control the level of assistance they receive from the AI model (e.g., aggressive, moderate, or minimal suggestions).
• Develop thorough unit and integration tests to ensure the compatibility and reliability of the autocomplete and rewrite features with RainLoop webmail and various browser environments.
• Create comprehensive user documentation, including step-by-step guides, FAQs, and troubleshooting tips for enabling, configuring, and using the OpenAI autocomplete and rewrite features in RainLoop webmail.
• Ensure compliance with GDPR and other data protection regulations by implementing necessary measures, such as anonymizing user data before sending it to the OpenAI API and providing clear privacy notices to users.
• Monitor and evaluate the usage and performance of the autocomplete and rewrite features after deployment, and gather user feedback to identify areas for improvement and further enhancement.

Considerations:

• The OpenAI API usage comes with its cost; thus, the integration should ensure that the autocomplete and rewrite features are optional, and users can enable/disable them according to their preferences and requirements.
• Allowing users to input their OpenAI API key will enable them to manage their API usage costs independently.
• Privacy and security should be taken into account, as some users might not want their email content to be processed by an external service.

I hope you find this feature request valuable, and I'm looking forward to seeing this enhancement in RainLoop webmail.