#!/bin/sh
# wren-idle: written by Wren Linux parts/swayidle.sh
# Runs swayidle with Wren Linux's timeouts. After the minutes set with
#  timer lock MINUTES  (5 unless you changed it, as in sway's own config; 1 to 120)
# the screen turns off, but doesn't lock: any key or mouse movement brings it
# back, no password. One minute later it locks, and the on-lock programs run
# (the vault closes its folder, KeePassXC locks). Most short breaks away from the
# computer end within that time (developers' average is about 4 minutes), so you
# rarely see the lock; the minute in the dark lets you come back without it.
# For the 30 seconds before the screen turns off it fades down with a notice
# (bin/dim-warning). It always locks before the laptop sleeps, at once.
# Super+Escape, the power menu and the lid lock at once too, through bin/wren-lock.
# sway starts it (~/.config/sway/config.d/idle.conf); timer lock restarts it.
#   wren-idle              run swayidle
#   wren-idle --minutes    print the minutes until the screen turns off
conf=${XDG_CONFIG_HOME:-$HOME/.config}/wren/lock

minutes=$(sed -n 's/^minutes=//p' "$conf" 2>/dev/null | tail -n 1)
case $minutes in '' | *[!0-9]*) minutes=5 ;; esac
[ "$minutes" -ge 1 ] && [ "$minutes" -le 120 ] || minutes=5

if [ "${1:-}" = --minutes ]; then
    echo "$minutes"
    exit 0
fi

off=$((minutes * 60))
dim=$((off - 30))
# the minute in the dark, then the lock
lock=$((off + 60))
DIM=$HOME/.local/bin/dim-warning
# the same as LOCK_CMD in lib/sway.sh (test.sh checks)
# shellcheck disable=SC2016  # expanded where it runs; one word: a checked color
LOCK='swaylock -f -c $(~/.local/bin/theme get LOCK 2>/dev/null || echo 000000)'
hooks=${XDG_CONFIG_HOME:-$HOME/.config}/wren/on-lock.d
case $hooks in *"'"*) HOOKS=: ;; *) HOOKS="for h in '$hooks'/*; do [ -x \"\$h\" ] && timeout 10 \"\$h\"; done" ;; esac
exec swayidle -w \
    timeout "$dim" "$DIM start" resume "$DIM stop" \
    timeout "$off" 'swaymsg "output * power off"' resume 'swaymsg "output * power on"' \
    timeout "$lock" "$HOOKS; $LOCK" \
    before-sleep "$HOOKS; $LOCK"