#!/usr/bin/env bash
# Единая точка запуска Waitress для systemd, post_update и dev.
# Переменные: WESP_LISTEN (0.0.0.0:80), WESP_WAITRESS_THREADS (по умолчанию 20).
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$ROOT"

LISTEN="${WESP_LISTEN:-0.0.0.0:80}"
THREADS="${WESP_WAITRESS_THREADS:-20}"
if ! [[ "$THREADS" =~ ^[0-9]+$ ]] || [[ "$THREADS" -lt 4 ]]; then
  THREADS=4
fi

wesp_waitress() {
  local venv_dir py
  venv_dir="${WESP_VENV:-/opt/wes}"
  if [[ -x "${venv_dir}/bin/waitress-serve" ]]; then
    echo "${venv_dir}/bin/waitress-serve"
    return
  fi
  py="$(command -v python3 2>/dev/null || true)"
  if [[ -n "$py" && -x "${py%/*}/waitress-serve" ]]; then
    echo "${py%/*}/waitress-serve"
    return
  fi
  if [[ -x "${ROOT}/../wes_mac/bin/waitress-serve" ]]; then
    echo "${ROOT}/../wes_mac/bin/waitress-serve"
    return
  fi
  if [[ -x "${ROOT}/.venv/bin/waitress-serve" ]]; then
    echo "${ROOT}/.venv/bin/waitress-serve"
    return
  fi
  command -v waitress-serve
}

WAITRESS="$(wesp_waitress)"
exec "$WAITRESS" --listen="$LISTEN" --threads="$THREADS" wsgi:app