#!/bin/bash
# Copyright (C) 2019 Ian Kelling
# SPDX-License-Identifier: AGPL-3.0-or-later

if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi

source /a/bin/errhandle/err

shopt -s nullglob
shopt -s dotglob

shopt -s nullglob
for p in ~/.gem/ruby/*/bin; do
  PATH="$PATH:$p"
done

todaycache=/tmp/timetraptoday
newer() {
  if [[ ! -e $todaycache ]]; then
    return 1
  fi
  ! find $todaycache -mmin $1 -type f -exec false {} + &>/dev/null
}
td() { /a/opt/timetrap/bin/t d -ftotal all -m '^w|x$' "$@"; }

main() {

  ps_char=
  if [[ -e /dev/shm/iank-status ]]; then
    eval $(< /dev/shm/iank-status)
  fi

  # clocked in or out?
  cursheet=$(sqlite3 /p/.timetrap.db "select sheet from entries where end is NULL;")

  if [[ $cursheet ]]; then
    if i3-msg -t get_bar_config bar-0 | grep '"mode":"dock"' &>/dev/null; then
      i3-msg -q 'bar mode hide'
    fi
  else
    if i3-msg -t get_bar_config bar-0 | grep '"mode":"hide"' &>/dev/null; then
      i3-msg -q 'bar mode dock'
    fi
    cursheet=out
  fi

  # maybe sometime show work and x separate
  if newer 3; then
    today=$(< /tmp/timetraptoday)
  elif newer 10; then
    today=$(< /tmp/timetraptoday)
    td -s today >/tmp/timetraptoday &
  else
    today=$(td -s today)
    echo "$today" >/tmp/timetraptoday
  fi

  # hours remaining in the day:

  # work+study in the last week, not counting today.
  # no arg to printf for the intentional behavior of no arg
  # shellcheck disable=SC2183
  cache=/tmp/timetrap$(printf '%(%F)T')
  if [[ -e $cache ]]; then
    eval $(<$cache)
  else
    week=$(td -s '8 days ago' -e 'yesterday')
    printf 'week="%s"\n' "$week" >$cache
    week4=$(td -s '29 days ago' -e 'yesterday')
    printf 'week4="%s"\n' "$week4" >>$cache
  fi
  # weekly work+study in the last 4 weeks, not counting today.
  # todo later:
  # 4 weeks
  # ($x4week + $w4week + .05) /4
  #weekly work+study in the last 16 weeks, not counting today.
  #weekly work+study in the last 52 weeks, not counting today.

  unixtime=$EPOCHSECONDS
  midnight=$(date +%s -d 'tomorrow 00:00')
  tmp=($(echo "scale=1; today_left=($midnight-$unixtime) / 60 / 60;
today_left;
done_today=($today + .05) /1;
/* hours I could do today by working 80% of the remainder time */
today_left * .8 + done_today;
done_today;
($week + .05) /1;
($week4 + .05) /4"|bc))
  printf "[ { \"full_text\": \""
  if [[ $ps_char ]]; then
    printf "%s| " "$ps_char"
  fi
  printf "%s | left today %s %s | today %s | week %s | 4weeks %s | %s\" } ],\n" "$cursheet" "${tmp[@]}" "$(date "+%A, %B %d, %r")"
}

# pass any arg and we just run once
if (( $# )); then
  main
else
  printf '{ "version": 1 }\n['
  while true; do
    main
    sleep 5
  done
fi