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

SCRIPT_DIR=$(cd -- "$(dirname -- "$0")" && pwd)
HOLDER="$SCRIPT_DIR/mosaic-tmux-holder.service"
AGENT="$SCRIPT_DIR/mosaic-agent@.service"
INTERACTION="$SCRIPT_DIR/mosaic-interaction-agent@.service"

fail() {
  echo "FAIL: $*" >&2
  exit 1
}

[ -f "$HOLDER" ] || fail "missing mosaic-tmux-holder.service"
[ -f "$AGENT" ] || fail "missing mosaic-agent@.service"
[ -f "$INTERACTION" ] || fail "missing mosaic-interaction-agent@.service"

grep -qF 'ExecStart=' "$HOLDER" || fail "holder has no ExecStart"
grep -qF 'tmux -L' "$HOLDER" || fail "holder does not use named tmux socket"
grep -qF '_holder' "$HOLDER" || fail "holder session is not explicit"
grep -qF 'Requires=mosaic-tmux-holder.service' "$AGENT" || fail "agent does not require holder"
grep -qF 'start-agent-session.sh' "$AGENT" || fail "agent unit does not call start-agent-session.sh"
grep -qF 'kill-session -t "=%i"' "$AGENT" || fail "agent stop does not exact-match its session"
grep -qF 'Requires=mosaic-tmux-holder.service' "$INTERACTION" || fail "interaction service does not require holder"
grep -qF 'EnvironmentFile=%h/.config/mosaic/fleet/agents/%i.env' "$INTERACTION" || fail "interaction service does not require per-agent config"
grep -qF 'start-interaction-service.sh %i' "$INTERACTION" || fail "interaction service does not validate before startup"

if command -v systemd-analyze >/dev/null 2>&1; then
  systemd-analyze verify --user "$HOLDER" "$AGENT" "$INTERACTION" >/tmp/mosaic-fleet-systemd-verify.log 2>&1 || {
    cat /tmp/mosaic-fleet-systemd-verify.log >&2
    fail "systemd-analyze verify failed"
  }
fi

echo "ok - fleet systemd unit templates"