be9f14ce34
A small helpdesk system: an office Pixel running a patched GrapheneOS Dialer answers technician calls, records both call legs as separate channels, and a Ruby backend transcribes them through Whisper and files an AI summary against the caller. Squashed to a single commit for sharing. No credentials are included; secrets live outside the repo in /etc/helpdesk/env on the server or a gitignored .claude/env.local locally. See .claude/env.local.example for the shape. Start at README.md, then docs/architecture.md.
74 lines
2.9 KiB
Ruby
74 lines
2.9 KiB
Ruby
# frozen_string_literal: true
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# Business-hours decision: Mon-Fri 08:00-16:00 Europe/Prague, excluding Czech public holidays.
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# This is the authoritative backend check (the device's util/BusinessHours.java is only a local
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# reflex when the network is down). Pure functions over a supplied local Time — deterministic + testable.
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# Note: prague_now uses a TZ-env trick for DST; a tz library would be sturdier if this grows.
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require "date"
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module Helpdesk
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module BusinessHours
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OPEN_HOUR = 8
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CLOSE_HOUR = 16 # closed at 16:00 sharp
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module_function
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# `local` must be a Time already in Europe/Prague.
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def open?(local)
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return false if weekend?(local)
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return false if holiday?(local.to_date)
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local.hour >= OPEN_HOUR && local.hour < CLOSE_HOUR
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end
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def weekend?(local) = [0, 6].include?(local.wday) # Sun=0, Sat=6
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# Czech public holidays (fixed) + movable Good Friday & Easter Monday.
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def holiday?(date)
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y = date.year
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fixed = [[1, 1], [5, 1], [5, 8], [7, 5], [7, 6], [9, 28], [10, 28], [11, 17], [12, 24], [12, 25], [12, 26]]
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return true if fixed.include?([date.month, date.day])
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easter = easter_date(y)
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date == (easter - 2) || date == (easter + 1) # Good Friday, Easter Monday
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end
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# Anonymous Gregorian algorithm.
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def easter_date(y)
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a = y % 19; b = y / 100; c = y % 100; d = b / 4; e = b % 4
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f = (b + 8) / 25; g = (b - f + 1) / 3
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h = (19 * a + b - d - g + 15) % 30
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i = c / 4; k = c % 4
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l = (32 + 2 * e + 2 * i - h - k) % 7
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m = (a + 11 * h + 22 * l) / 451
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month = (h + l - 7 * m + 114) / 31
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day = ((h + l - 7 * m + 114) % 31) + 1
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Date.new(y, month, day)
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end
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# Prague "now" without a tz gem AND without mutating the process-global ENV["TZ"] (the old
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# `ENV["TZ"]=` trick raced across WEBrick request threads: concurrent /status polls could
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# permanently leak TZ, and libc setenv isn't thread-safe against getenv in other threads). Instead
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# apply the Europe/Prague UTC offset (CET/CEST) directly to a UTC clock — pure, thread-safe.
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def prague_now
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utc = Time.now.utc
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utc.getlocal(prague_offset(utc))
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end
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# "+02:00" during EU summer time (CEST), else "+01:00" (CET). EU DST runs from 01:00 UTC on the
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# last Sunday of March to 01:00 UTC on the last Sunday of October.
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def prague_offset(utc)
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y = utc.year
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dst_start = Time.utc(y, 3, last_sunday(y, 3).day, 1)
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dst_end = Time.utc(y, 10, last_sunday(y, 10).day, 1)
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(utc >= dst_start && utc < dst_end) ? "+02:00" : "+01:00"
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end
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def last_sunday(y, month)
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d = Date.new(y, month, -1) # last day of the month
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d - d.wday # step back to Sunday (Date#wday: Sunday=0)
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end
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# Out-of-hours SMS text (Czech).
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OUT_OF_HOURS_SMS = "Mimo pracovní dobu (Po–Pá 8–16). Zavolejte prosím zítra v 8:00. Děkujeme."
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end
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end
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