#!/usr/bin/env bash
# Shared helpers for heavy-duty-watcher scripts.
# shellcheck shell=bash
# Usage: source "$(dirname "$0")/lib/common.sh"  (from scripts/*.sh)

# Resolve repo root from the calling script when WATCHER_DIR is unset.
if [[ -z "${WATCHER_DIR:-}" ]]; then
  _COMMON_HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
  WATCHER_DIR="$(cd "${_COMMON_HERE}/../.." && pwd)"
  unset _COMMON_HERE
fi

# Optional local overrides (never committed — see .gitignore).
if [[ -f "${WATCHER_DIR}/config/watcher.env" ]]; then
  # shellcheck disable=SC1091
  set -a
  # shellcheck source=/dev/null
  source "${WATCHER_DIR}/config/watcher.env"
  set +a
fi

ORG="${ORG:-heavy-duty}"
BOT_LOGIN="${BOT_LOGIN:-grok-bot-andresmgsl}"
# github | forgejo — discovery/posting backend
FORGE_BACKEND="${FORGE_BACKEND:-github}"
FORGEJO_URL="${FORGEJO_URL:-https://forgejo.heavyduty.builders}"
POLL_INTERVAL_SEC="${POLL_INTERVAL_SEC:-900}"
HEALTH_INTERVAL_SEC="${HEALTH_INTERVAL_SEC:-3600}"
STALE_POLL_MINUTES="${STALE_POLL_MINUTES:-45}"
TMUX_SESSION="${TMUX_SESSION:-heavy-duty-watcher}"
LEGACY_TMUX="${LEGACY_TMUX:-rig-watcher}"
LIMIT="${LIMIT:-50}"

LOG_DIR="${LOG_DIR:-${WATCHER_DIR}/logs}"
STATE_FILE="${STATE_FILE:-${WATCHER_DIR}/state.json}"

watcher_log() {
  local file="$1"
  shift
  mkdir -p "$(dirname "${file}")"
  echo "[$(date -u +%Y-%m-%dT%H:%M:%SZ)] $*" >> "${file}"
}

utc_now() {
  date -u +%Y-%m-%dT%H:%M:%SZ
}

require_cmd() {
  local c
  for c in "$@"; do
    if ! command -v "${c}" >/dev/null 2>&1; then
      echo "error: required command not found: ${c}" >&2
      return 1
    fi
  done
}

# True if a process whose args contain the given regex is running (excludes awk).
process_running() {
  local pattern="$1"
  ps -eo args 2>/dev/null | awk -v p="${pattern}" '
    $0 ~ p && $0 !~ /awk/ { found=1 }
    END { exit !found }
  '
}