[quick-event] Add Fantastical-style calendar selector and improve date parsing

[alexpriest]

Summary

This PR adds several quality-of-life improvements to the Quick Event extension:

• Calendar selector: Append /calendarname to quickly select which calendar to use

  • Example: Lunch with Sarah tomorrow /work
  • Supports fuzzy matching (e.g., /w matches "Work")

• Time range parsing: Ranges like 2-3pm now work correctly

  • Before: "piano tuning 2-3pm" → parsed as all-day event with "2" in title
  • After: "piano tuning 2-3pm" → correctly parsed as 2:00 PM to 3:00 PM

• Timezone support: Specify timezone after time

  • Example: Call with NYC team 3pm EST tomorrow
  • Supports major timezones: EST/EDT, PST/PDT, GMT/UTC, CET, JST, AEST, etc.

• Smart date handling: Past dates auto-advance to next year

  • "Dec 18" in late December → Dec 18 next year

Test plan

• [ ] Test calendar selector with /calendarname syntax
• [ ] Test fuzzy matching with partial calendar names
• [ ] Test time ranges like 2-3pm, 10-11:30am
• [ ] Test timezone specification like 3pm EST
• [ ] Test past dates auto-advance to next year

🤖 Generated with Claude Code

[raycastbot]

Thank you for your contribution! :tada:

🔔 @mblode @bascomb @whitespacecode @ridemountainpig you might want to have a look.

You can use this guide to learn how to check out the Pull Request locally in order to test it.

📋 Quick checkout commands

BRANCH="quick-event-calendar-selector"
FORK_URL="https://github.com/alexpriest/extensions.git"
EXTENSION_NAME="quick-event"
REPO_NAME="extensions"

git clone -n --depth=1 --filter=tree:0 -b $BRANCH $FORK_URL
cd $REPO_NAME
git sparse-checkout set --no-cone "extensions/$EXTENSION_NAME"
git checkout
cd "extensions/$EXTENSION_NAME"
npm install && npm run dev

Due to our current reduced availability, the initial review may take up to 10-15 business days.

[greptile-apps[bot]]

Greptile Summary

This PR adds several quality-of-life improvements to the Quick Event extension, bringing it closer to Fantastical's functionality:

• Calendar selector: Append /calendarname to select which calendar to use with fuzzy matching support
• Time range parsing: Ranges like 2-3pm now work correctly by converting to from X to Y format for Sherlock
• Timezone support: Specify timezone after time (e.g., 3pm EST) with support for major timezones
• Smart date handling: Past dates automatically advance to next year

Key changes:

• Added fuse.js for fuzzy calendar name matching with exact match → prefix match → fuzzy match fallback
• Implemented timezone extraction and conversion logic with TIMEZONE_OFFSETS mapping
• Enhanced UI with timezone and matched calendar tags, reordered action panel to prioritize matched calendar
• Updated time range preprocessing to convert 2-3pm patterns to from 2pm to 3pm format

Issues found:

• Critical: Timezone conversion logic in applyTimezone() has incorrect calculation that will produce wrong times

Confidence Score: 3/5

• This PR has a critical timezone conversion bug that will cause incorrect event times
• The implementation is well-structured with good UX improvements, but the timezone conversion logic contains a mathematical error that will produce incorrect event times. This is a functional bug that needs to be fixed before merging. Other than this issue, the code quality is good with proper error handling, fuzzy matching, and sensible fallbacks.
• Pay close attention to useCalendar.tsx - the timezone conversion logic needs correction

Important Files Changed

Filename	Overview
extensions/quick-event/src/useCalendar.tsx	Added calendar selector with fuzzy matching, timezone support, and smart date handling for past dates
extensions/quick-event/src/index.tsx	Updated UI to display matched calendar and timezone tags, reordered action panel to prioritize matched calendar
extensions/quick-event/src/dates.ts	Added time range parsing for patterns like "2-3pm" and "2pm-3pm" to improve Sherlock parsing
extensions/quick-event/CHANGELOG.md	Existing changelog file, missing entry for current PR changes