Calendar integration

[jatoko]

Is your feature request related to a problem? Please describe.
Many emails contain information about to-dos and events. The LLM can easily extract the information to generate events in .ics-format, for example. But let's face it: importing ics files is painful and we can do much better.

Describe the solution you'd like
I would like to link ThunderAI to Thunderbird's Calendar API, e.g. to automatically display the UI for a new calendar event, which is automatically prepopulated with the LLM output. Users would then only need to click save to add the event to a calendar.
I would also love to have an input field in the calendar view to add events to my calendar in a conversational manner.
E.g.: I have a doctor's appointment Wednesday, Nov 27 at 3:15 pm. --> creates calendar event/ Thunderbird calendar dialogue window.

Additional context
General strategic question: Is ThunderAI the right place to integrate this calendar integration? Or is this considered out of scope/ a different domain?

[micz]

Thank you for your suggestion!
I think this fits well with ThunderAI's scope.

The only issue is that there isn't a Calendar API available at the moment, so implementing this will require extra effort to find a workaround. However, I definitely think it's worth exploring.

I also think that the idea could be to open the "New Event" dialog pre-populated with data from the AI.
In this way, adding a tool to create calendar events in a conversational manner could also become feasible.

It won't be easy, but I'll look into it!

[micz]

A bit of information to start with, thanks to the help of @kewisch.

This it the method to call to open the new event dialog: https://searchfox.org/comm-central/source/calendar/base/content/item-editing/calendar-item-editing.js#261

The parameters structure is defined in those files in https://searchfox.org/comm-central/source/calendar/base/public , and then there is the mega-module https://searchfox.org/comm-central/source/calendar/base/modules/calUtils.sys.mjs which will give us ways to create most of the things we need.

[micz]

I'm currently testing this prompt with variable results with OpenAI and Google Gemini:

Extract all relevant details required to generate a calendar event from the following text. The extracted information should include:

• Event Title
• Start Date and Time (including timezone, if specified)
• End Date and Time (including timezone, if specified)
• Full day (if mentioned)
  Ensure the data is formatted clearly and consistently so that it can be directly used for creating a calendar event.
  If there are relative time references, consider that the date and time of the considered email are "{%mail_datetime%}".
  If the duration is not specified, set it to one hour.
  If you're not able to get one or more of the required information, please respond with an empty string.
  Generate a response in JSON format only. Do not include any additional text or explanations; provide only the JSON. Here is the format to be used:
  {
  "startDate": "AAAAMMDDTHHMMSSZ",
  "endDate": "AAAAMMDDTHHMMSSZ",
  "summary": "Calendar event summary here",
  "forceAllDay": false
  }
  Here's the text:"{%selected_text%}"

Consider {%mail_datetime%} will be implemented in #223.

When {%selected_text%} is a specified date and time it works, but if it's something like "Tomorrow at 15:00", it does not work consistently.
Do you have any suggestions?

[micz]

This prompt is working better.

Extract all relevant details required to generate a calendar event from the following text. The extracted information should include:

• Event Title
• Start Date and Time (including timezone, if specified)
• End Date and Time (including timezone, if specified)
• Full day (if mentioned)
  Ensure the data is formatted clearly and consistently so that it can be directly used for creating a calendar event.
  If there are relative time references, consider that the date and time of the email are "{%mail_datetime%}". Calculate the start date and time based on this reference. If the calculated start date and time are earlier than "{%current_datetime%}", recalculate the start date and time using "{%current_datetime%}" as the base.
  If the duration is not specified, set it to one hour.
  If you're not able to get one or more of the required information, please respond with an empty string.
  Generate a response in JSON format only. Do not include any additional text or explanations; provide only the JSON. Here is the format to be used:
  {
  "startDate": "YYYYMMDDTHHMMSS",
  "endDate": "YYYYMMDDTHHMMSS",
  "summary": "Calendar event summary here",
  "forceAllDay": false
  }
  Here's the text:"{%selected_text%}"

I implemented also #224 for the current date and time placeholder.