#!/usr/bin/env bash
set -euo pipefail

# Watchdog B v2 dispatcher/runner.
# Unified entrypoint for timer/service/manual runs.
#
# Flow:
# 1) Call check_openclaw_state.sh to get one of: running | stalled | idle
# 2) Emit a human-readable action template for the detected state
# 3) Invoke the notification layer (dry-run/manual by default, configurable)
# 4) Persist rendered output for local verification / future integrations
#
# Notification behavior is intentionally conservative:
# - running: defaults to a manual/queue-ready owner report path
# - stalled/idle: nudge main agent first, then optionally escalate to owner report
# - outbound owner messaging reuses the existing owner-reporting-system queue

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
SKILL_DIR="$(cd -- "$SCRIPT_DIR/.." && pwd)"
WATCHDOG_B_CONFIG_FILE_DEFAULT="$HOME/.config/openclaw/watchdog-b.env"
WATCHDOG_B_CONFIG_FILE="${WATCHDOG_B_CONFIG_FILE:-$WATCHDOG_B_CONFIG_FILE_DEFAULT}"
if [[ -f "$WATCHDOG_B_CONFIG_FILE" ]]; then
  set -a
  # shellcheck disable=SC1090
  . "$WATCHDOG_B_CONFIG_FILE"
  set +a
fi

WORKSPACE_DEFAULT="$HOME/.openclaw/workspace"
WORKSPACE_DIR="${WATCHDOG_B_WORKSPACE:-$WORKSPACE_DEFAULT}"
CHECKER="${WATCHDOG_B_CHECKER:-$SCRIPT_DIR/check_openclaw_state.sh}"
ARTIFACT_DIR="${WATCHDOG_B_ARTIFACT_DIR:-$WORKSPACE_DIR/state/watchdog-b}"
TIMESTAMP="$(date '+%Y-%m-%dT%H:%M:%S%z')"
HOSTNAME_VALUE="$(hostname 2>/dev/null || echo unknown-host)"
NOTIFIER="${WATCHDOG_B_NOTIFIER:-$SCRIPT_DIR/notify_watchdog_b.py}"
NOTIFY_DRY_RUN="${WATCHDOG_B_NOTIFY_DRY_RUN:-1}"

mkdir -p "$ARTIFACT_DIR"

if [[ ! -x "$CHECKER" ]]; then
  echo "watchdog-b error: checker not executable: $CHECKER" >&2
  exit 1
fi

STATE="$($CHECKER)"

emit_running() {
  cat <<EOF
WATCHDOG_B_STATE=running
WATCHDOG_B_TIMESTAMP=$TIMESTAMP
WATCHDOG_B_HOST=$HOSTNAME_VALUE
WATCHDOG_B_ACTION=progress-template
WATCHDOG_B_TEMPLATE_BEGIN
[watchdog-b][running] OpenClaw main runtime appears active.
Suggested future progress-report message template:
- Status: still running
- Checked at: $TIMESTAMP
- Host: $HOSTNAME_VALUE
- Summary: main runtime is alive and log activity is fresh.
- Next step: if desired, attach latest task/progress snapshot before sending.
WATCHDOG_B_TEMPLATE_END
WATCHDOG_B_NEXT_HOOK=progress_report_stub
EOF
}

emit_stalled() {
  cat <<EOF
WATCHDOG_B_STATE=stalled
WATCHDOG_B_TIMESTAMP=$TIMESTAMP
WATCHDOG_B_HOST=$HOSTNAME_VALUE
WATCHDOG_B_ACTION=nudge-template
WATCHDOG_B_TEMPLATE_BEGIN
[watchdog-b][stalled] OpenClaw main runtime looks alive but may be stuck.
Suggested future nudge/escalation template:
- Audience: main agent and/or Eric
- Checked at: $TIMESTAMP
- Host: $HOSTNAME_VALUE
- Observation: process is alive, but activity log appears stale beyond threshold.
- Suggested ask: please confirm current task state, unblock reason, or whether intervention is needed.
WATCHDOG_B_TEMPLATE_END
WATCHDOG_B_NEXT_HOOK=stalled_nudge_stub
EOF
}

emit_idle() {
  cat <<EOF
WATCHDOG_B_STATE=idle
WATCHDOG_B_TIMESTAMP=$TIMESTAMP
WATCHDOG_B_HOST=$HOSTNAME_VALUE
WATCHDOG_B_ACTION=idle-template
WATCHDOG_B_TEMPLATE_BEGIN
[watchdog-b][idle] OpenClaw main runtime does not appear to be actively running.
Suggested future reminder template:
- Audience: main agent and/or Eric
- Checked at: $TIMESTAMP
- Host: $HOSTNAME_VALUE
- Observation: no live runtime detected from pid/log heuristic.
- Suggested ask: confirm whether the runtime should be started, ignored, or left idle.
WATCHDOG_B_TEMPLATE_END
WATCHDOG_B_NEXT_HOOK=idle_reminder_stub
EOF
}

case "$STATE" in
  running)
    OUTPUT="$(emit_running)"
    ;;
  stalled)
    OUTPUT="$(emit_stalled)"
    ;;
  idle)
    OUTPUT="$(emit_idle)"
    ;;
  *)
    echo "watchdog-b error: unexpected state from checker: $STATE" >&2
    exit 2
    ;;
esac

printf '%s\n' "$OUTPUT"

NOTIFY_OUTPUT=""
if [[ -x "$NOTIFIER" ]]; then
  NOTIFY_CMD=("$NOTIFIER" --state "$STATE" --timestamp "$TIMESTAMP")
  if [[ "$NOTIFY_DRY_RUN" == "1" ]]; then
    NOTIFY_CMD+=(--dry-run)
  fi
  if NOTIFY_OUTPUT="$(WATCHDOG_B_ARTIFACT_DIR="$ARTIFACT_DIR" "${NOTIFY_CMD[@]}" 2>&1)"; then
    printf '%s\n' "$NOTIFY_OUTPUT"
  else
    printf '%s\n' "$NOTIFY_OUTPUT"
    echo "watchdog-b warning: notifier returned non-zero for state=$STATE" >&2
  fi
else
  echo "watchdog-b warning: notifier not executable: $NOTIFIER" >&2
fi

printf '%s\n' "$OUTPUT" > "$ARTIFACT_DIR/last-output.txt"
printf '%s\n' "$NOTIFY_OUTPUT" > "$ARTIFACT_DIR/last-notify-output.txt"
printf '%s\t%s\n' "$TIMESTAMP" "$STATE" >> "$ARTIFACT_DIR/history.tsv"
printf '%s\n' "$STATE" > "$ARTIFACT_DIR/last-state.txt"