#!/usr/bin/env bash

set -e
set -o nounset
set -o pipefail

SCRIPTS=${SCRIPTS:-$HOME/.local/scripts}
THIS_FILE=${BASH_SOURCE[0]}
LOG_LABEL=$(basename "$THIS_FILE")
THIS=${THIS:-$LOG_LABEL}
LOG_FILE=${LOG_FILE:-"/tmp/$LOG_LABEL.log"}

usage() {
  cat <<EOF

Shows a window picker and window details, then prompts for an action that can be 
performed on the selected window.

USAGE:

  $ $THIS <flags>

FLAGS:
  -a | --active:      Select action to perform on active window.
  -h | --help:        Show this page.

EOF
}

# Logging utility function, use in place of echo.
log() {
  logging log --source "$THIS_FILE" "$@"
}

handle_selected_value() {
  local selection=""
  read -r selection

  if [[ -z $selection ]]; then
    log "No selected value."
    return 1
  fi

  log "Prompting for action, window: '$selection'"

  local res=$(echo "$selection" | "$SCRIPTS/hypr/utils/windows/window-action-picker" --show-back)
  log "Action callback result: $res"
  echo "$res"

}

prompt_for_window_selection() {
  local selected_value=$("$SCRIPTS/hypr/window-picker")
  local status=$?
  if [[ $status -ne 0 ]]; then
    exit $status
  fi
  echo "$selected_value"
}

################################################################################
# MAIN
################################################################################

# Setup logging file and label.
source "$SCRIPTS/hypr/logging"
setup-logging $LOG_FILE $LOG_LABEL
should_quit="0"
address=""

log "Starting $THIS..."

while [[ $# -gt 0 ]]; do
  if [[ $1 == "-h" ]] || [[ $1 == "--help" ]]; then
    usage && exit 0
  elif [[ $1 == "-a" ]] || [[ $1 == "--active" ]]; then
    address=$(hyprctl activewindow -j | jq -r '.address')
  elif [[ -n $1 ]]; then
    address=$1
  fi
  shift
done

trap 'log "Stoping..."; should_quit="1"' SIGINT

while [[ $should_quit -eq 0 ]]; do

  if [[ -n $address ]]; then
    res=$(echo $address | handle_selected_value)
  else
    res=$(prompt_for_window_selection | handle_selected_value)
  fi

  if [[ ! $res =~ ^back ]]; then
    should_quit=1
  elif [[ $res == "back:close" ]]; then
    sleep 0.3 # allow time for windows close, to prevent showing closed windows.
  fi

  log "Should quit: $should_quit"
done