#!/bin/bash

# omarchy:summary=Apply current Omarchy theme colors and background alpha to running Foot terminals
# omarchy:hidden=true

colors_toml=$HOME/.local/state/omarchy/current/theme/colors.toml
foot_ini=$HOME/.local/state/omarchy/current/theme/foot.ini

if [[ ! -f $colors_toml ]] || ! pgrep -x foot >/dev/null; then
  exit 0
fi

foot_osc=$(omarchy-theme-osc "$colors_toml")
[[ -n $foot_osc ]] || exit 0

# foot takes a background alpha as an urxvt-style [percent] prefix, so a theme
# going see-through or back, as with Glassy windows, reaches running terminals.
# The last alpha in the theme's foot.ini wins, as it does when foot reads it.
alpha=$(sed -n 's/^[[:space:]]*alpha[[:space:]]*=[[:space:]]*\([0-9.]*\).*/\1/p' "$foot_ini" 2>/dev/null | tail -n 1)
background=$(omarchy-theme-color --file "$colors_toml" background 2>/dev/null)
if [[ -n $background ]]; then
  percent=$(awk -v alpha="${alpha:-1}" 'BEGIN { printf "%d", alpha * 100 + 0.5 }')
  foot_osc+=$(printf '\033]11;[%d]%s\007' "$percent" "$background")
fi

for foot_pid in $(pgrep -x foot); do
  for child_pid in $(pgrep -P "$foot_pid"); do
    tty=$(readlink "/proc/$child_pid/fd/1" 2>/dev/null)
    [[ $tty == /dev/pts/* ]] && printf '%b' "$foot_osc" >"$tty"
  done
done