#!/usr/bin/env bash

set -euo pipefail

launcher_path="$(readlink -f -- "$0")"
launcher_dir="$(cd "$(dirname "$launcher_path")" && pwd)"
app_dir="${NANI_APP_DIR:-$launcher_dir}"
electron="$app_dir/electron"

if [[ "${APPIMAGE:-}" = /* ]]; then
  NANI_LAUNCHER_PATH="$(readlink -f -- "$APPIMAGE")"
else
  NANI_LAUNCHER_PATH="$launcher_path"
fi
export NANI_LAUNCHER_PATH

if [ ! -x "$electron" ]; then
  printf 'nani: Electron executable not found: %s\n' "$electron" >&2
  exit 1
fi

ozone_platform="${NANI_OZONE_PLATFORM:-auto}"
case "$ozone_platform" in
  x11|wayland|auto) ;;
  *)
    printf 'nani: NANI_OZONE_PLATFORM must be x11, wayland, or auto (got %s)\n' \
      "$ozone_platform" >&2
    exit 2
    ;;
esac

has_ozone_argument=false
for argument in "$@"; do
  case "$argument" in
    --ozone-platform|--ozone-platform=*|--ozone-platform-hint|--ozone-platform-hint=*)
      has_ozone_argument=true
      break
      ;;
  esac
done

electron_arguments=()
if [ "$has_ozone_argument" = false ]; then
  if [ "$ozone_platform" = auto ]; then
    if [ -n "${DISPLAY:-}" ]; then
      ozone_platform=x11
    elif [ -n "${WAYLAND_DISPLAY:-}" ]; then
      ozone_platform=wayland
    else
      ozone_platform=x11
    fi
  fi
  electron_arguments+=("--ozone-platform=$ozone_platform")
fi

if [ -n "${NANI_CDP_PORT:-}" ]; then
  if [[ ! "$NANI_CDP_PORT" =~ ^[0-9]+$ ]] ||
    (( 10#$NANI_CDP_PORT < 1 || 10#$NANI_CDP_PORT > 65535 )); then
    printf 'nani: NANI_CDP_PORT must be an integer from 1 to 65535\n' >&2
    exit 2
  fi
  electron_arguments+=(
    "--remote-debugging-address=127.0.0.1"
    "--remote-debugging-port=$NANI_CDP_PORT"
  )
fi

cache_dir="${XDG_CACHE_HOME:-$HOME/.cache}/nani-translate-linux"
mkdir -p "$cache_dir"
log_file="$cache_dir/nani.log"
printf '\n[%s] starting Nani\n' "$(date -u +%Y-%m-%dT%H:%M:%SZ)" >>"$log_file"

exec "$electron" "${electron_arguments[@]}" "$@" >>"$log_file" 2>&1