#!/bin/bash
# A way back for a player whose browser lost their seat: the seat gets a new
# token, the old one stops working, and the link printed carries the new one.
# Whether the one asking holds that seat is the keeper's call; send the link
# only to them. Runs ON the droplet, through the game server's keeper door,
# which listens on the loopback alone.
#   wizwar-reseat.sh ROOM          who sits at the table, and when each person last moved or spoke
#   wizwar-reseat.sh ROOM NAME     re-seat the wizard NAME and print the link
set -euo pipefail
ROOM="${1:?usage: wizwar-reseat.sh ROOM [NAME]}"
DOOR="http://127.0.0.1:${KEEPER_PORT:-9787}/keeper/rooms/${ROOM^^}"
KEY_FILE="${KEEPER_KEY_FILE:-/etc/wizwar/keeper.key}"
[ -s "$KEY_FILE" ] || { echo "No keeper's key at $KEY_FILE; a deploy makes it." >&2; exit 1; }
# The key goes as a header read from a file descriptor, never on a command line another user could see.
KEY="@/dev/fd/3"
exec 3< <(printf 'x-keeper-key: %s\n' "$(cat "$KEY_FILE")")
if [ $# -lt 2 ]; then
  curl -s -H "$KEY" "$DOOR" | python3 -c '
import json, sys
r = json.load(sys.stdin)
if "error" in r: sys.exit(r["error"])
print("room %s, %s" % (r["roomId"], "finished" if r["finished"] else "in play" if r["started"] else "not begun"))
for s in r["seats"]:
    when = "automaton" if s["bot"] else "never moved or spoke" if s["lastActed"] is None else "last acted " + s["lastActed"][:16].replace("T", " ") + " UTC"
    print("  %-24s %-5s %s" % (s["name"], "host" if s["host"] else "", when))
'
else
  python3 -c 'import json, sys; print(json.dumps({"seat": sys.argv[1]}))' "$2" \
    | curl -s -X POST -H "$KEY" -H 'content-type: application/json' --data-binary @- "$DOOR/reseat" | python3 -c '
import json, sys
r = json.load(sys.stdin)
if "error" in r: sys.exit(r["error"])
print("%s has a new token; their old one opens nothing now. Send them this link:" % r["name"])
print(r["link"])
'
fi