Two root causes:
- claim_open_shift ConditionExpression failed when no OVERRIDE record
existed (shift available via weekly fallback). Added attribute_not_exists
check so claims succeed for both missing and OPEN overrides.
- Slack ack timeout: chat_postMessage took too long before respond() was
called, causing Slack to show an error. Moved respond() first and made
channel notifications best-effort with try/except.
Slash command handlers (drop, pick, swap) were posting notifications to
command["channel_id"] — wherever the command was run. If someone ran
/oncall drop from a DM, the notification went there instead of the
schedule channel. Pickup buttons didn't have this problem because
body["channel"]["id"] is always the channel where the button lives.
Added SHIFT_CHANNEL_PARAM to the SlackBotFunction env vars, read it on
cold start, and route all slash command shift-change notifications to
the configured schedule channel.
Closes#21
The pickup button handler used an unconditional put_item, so concurrent
clicks would both succeed with last-write-wins. Added claim_open_shift()
which uses a DynamoDB ConditionExpression to only write if the shift is
still OPEN. The button handler now returns an ephemeral "already taken"
message when the condition fails.
Closes#19
Saturdays and Sundays now have two shift slots: a day shift (8am–5pm)
and the existing after-hours shift. Extension 100 (fallback) is
excluded from pay calculations. Pickup buttons and schedule display
updated to handle both shift types.
- /oncall rate — view current default and per-person rates
- /oncall rate default <amount> — set the global fallback rate
- /oncall rate <extension> <amount> — set a person-specific rate
Each roster entry can now have its own shift_rate, falling back to the
global CONFIG rate when not set. Pay breakdowns show individual rates
per shift and per-person totals.
Calculates after-hours pay per shift using a configurable rate stored
in DynamoDB CONFIG. Pay summaries are computed on Monday mornings for
the previous week, stored in DynamoDB (PK=PAY), and posted to Slack.
Adds /oncall pay command for on-demand viewing.
Closes#2
Slack Bolt app on Lambda for managing on-call shifts. Employees can
pick up, drop, and swap shifts via /oncall commands. Changes update
3CX ring group 800 routing in real time for same-day shifts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
