#!/usr/bin/env bash
# batch-watch.sh — single-shot snapshot of an apricot batch dir's progress.
#
# Usage:
#   tools/batch-watch.sh <batch-dir-name>
#   tools/batch-watch.sh p1-22-budget-20260425_180742
#   tools/batch-watch.sh matchup-grid-20260425_193656
#
# Prints date, godot proc count, per-game (turn / outcome / age-since-last-write),
# and the tail of batch.log if present. Reads $AUTOPLAY_HOST from the calling
# environment and routes via ssh.

set -euo pipefail

if [[ $# -lt 1 ]]; then
    echo "Usage: $0 <batch-dir-name-under-.local/iter/>" >&2
    exit 2
fi

BATCH="$1"
HOST="${AUTOPLAY_HOST:-apricot}"

# Strip any user@ prefix and rely on ssh config alias when bare.
REMOTE="$HOST"
case "$REMOTE" in
    *.local|*.local:*) REMOTE="${REMOTE/.local/}" ;;
esac

ssh "$REMOTE" "BATCH=$BATCH bash -s" <<'REMOTE_SCRIPT'
set -uo pipefail
ROOT="$HOME/Code/@projects/@magic-civilization/.local/iter/$BATCH"
echo "=== date ==="
date
echo "=== godot count ==="
ps -eo pid,etime,cmd | grep godot-bin | grep -v grep | wc -l
echo "=== per-game state ==="
if [[ ! -d "$ROOT" ]]; then
    echo "  (no such batch dir: $ROOT)"
    exit 0
fi
# Games may live one or two levels under $ROOT (matchup-grid puts them under pair/as_clan/)
while IFS= read -r g; do
    name=${g#"$ROOT/"}
    if [[ ! -f "$g/turn_stats.jsonl" ]]; then
        echo "  $name: NO_STATS"
        continue
    fi
    n=$(wc -l < "$g/turn_stats.jsonl" 2>/dev/null || echo 0)
    last=$(tail -1 "$g/turn_stats.jsonl" 2>/dev/null | python3 -c '
import sys, json
try:
    d = json.loads(sys.stdin.read() or "{}")
    print(d.get("turn", "-"), d.get("outcome", "-"), d.get("winner_personality") or d.get("winner_clan") or "")
except Exception:
    print("PARSE_ERR")
' 2>/dev/null)
    mt=$(stat -c %Y "$g/turn_stats.jsonl" 2>/dev/null || echo 0)
    now=$(date +%s)
    age=$((now - mt))
    echo "  $name: turns=$n last=$last age=${age}s"
done < <(find "$ROOT" -maxdepth 3 -mindepth 1 -type d -name 'game_*' | sort)
echo "=== batch.log tail ==="
tail -8 "$ROOT/batch.log" 2>/dev/null || echo "  (no batch.log)"
REMOTE_SCRIPT