#!/usr/bin/env bash
# Push the built binaries, dashboard, and systemd unit files to both
# SDP VMs, then enable + start the services.
#
#   92 (micro):    ~/SDP/agent-micro, sdp-agent-micro.service
#   186 (gateway): ~/SDP/{control-plane,agent-gateway,dashboard},
#                  sdp-control-plane.service, sdp-agent-gateway.service
#
# Nginx is configured by hand on 186 (out of scope for this script).
# Run scripts/build.sh first.

set -euo pipefail
cd "$(dirname "$0")/.."
REPO_ROOT="$(pwd)"

# ponytail: paths can be overridden by env so the same script works from CI.
HOST_92="${SDP_92_HOST:-administrator@172.18.136.92}"
PASS_92="${SDP_92_PASS:-password}"
HOST_186="${SDP_186_HOST:-administrator@172.18.139.186}"
PASS_186="${SDP_186_PASS:-Bre@kthrough2312}"

if ! command -v sshpass >/dev/null 2>&1; then
  echo "sshpass not found. Install with: brew install sshpass" >&2
  exit 1
fi

SSH_92="sshpass -p $PASS_92 ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR"
SCP_92="sshpass -p $PASS_92 scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR"
SSH_186="sshpass -p $PASS_186 ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR"
SCP_186="sshpass -p $PASS_186 scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR"

# ponytail: Wipe-and-replace. The deploys are stateful on the VM only via
# SQLite + .log files in ~/SDP/data — we keep that. Binaries, dashboard,
# and unit files in /etc/systemd/system are replaced cleanly.
REMOTE_RESET='rm -rf ~/SDP/bin ~/SDP/dashboard && mkdir -p ~/SDP/bin ~/SDP/dashboard'

# install_unit <ssh-prefix-with-host> <unit-name>
#   stops the old unit (if any), copies the file from /tmp/ (already
#   scp'd there), reloads systemd, and re-enables on next boot.
install_unit() {
  local ssh_prefix="$1"   # e.g. "sshpass -p ... ssh -o ... administrator@host"
  local unit="$2"
  $ssh_prefix "sudo systemctl stop $unit 2>/dev/null || true"
  $ssh_prefix "sudo install -m 644 -o root -g root /tmp/$unit /etc/systemd/system/$unit"
  $ssh_prefix "sudo systemctl daemon-reload"
  $ssh_prefix "sudo systemctl enable $unit"
}

# status_block <ssh-prefix> <unit>
#   prints a short status + last 10 journal lines.
status_block() {
  local ssh_prefix="$1"
  local unit="$2"
  $ssh_prefix "echo '    status:'; sudo systemctl --no-pager --full status $unit | head -3"
  $ssh_prefix "echo '    journal (last 10):'; sudo journalctl -u $unit -n 10 --no-pager"
}

echo "==> 92: $HOST_92"
$SSH_92 "$HOST_92" "$REMOTE_RESET"
$SCP_92 "$REPO_ROOT/bin/agent-micro" "$HOST_92:~/SDP/bin/agent-micro"
$SCP_92 "$REPO_ROOT/systemd/sdp-agent-micro.service" "$HOST_92:/tmp/sdp-agent-micro.service"
$SSH_92 "$HOST_92" "chmod +x ~/SDP/bin/agent-micro"
install_unit "$SSH_92 $HOST_92" sdp-agent-micro.service
$SSH_92 "$HOST_92" "sudo systemctl restart sdp-agent-micro"
status_block "$SSH_92 $HOST_92" sdp-agent-micro
echo "    agent-micro installed"

echo
echo "==> 186: $HOST_186"
$SSH_186 "$HOST_186" "$REMOTE_RESET"
$SCP_186 "$REPO_ROOT/bin/control-plane"  "$HOST_186:~/SDP/bin/control-plane"
$SCP_186 "$REPO_ROOT/bin/agent-gateway"  "$HOST_186:~/SDP/bin/agent-gateway"
$SCP_186 -r "$REPO_ROOT/dashboard/out/."  "$HOST_186:~/SDP/dashboard/"
$SCP_186 "$REPO_ROOT/systemd/sdp-control-plane.service" "$HOST_186:/tmp/sdp-control-plane.service"
$SCP_186 "$REPO_ROOT/systemd/sdp-agent-gateway.service"  "$HOST_186:/tmp/sdp-agent-gateway.service"
$SSH_186 "$HOST_186" "chmod +x ~/SDP/bin/control-plane ~/SDP/bin/agent-gateway"

# Control plane first so the gateway agent's -cp URL has something to dial.
install_unit "$SSH_186 $HOST_186" sdp-control-plane.service
$SSH_186 "$HOST_186" "sudo systemctl restart sdp-control-plane"
status_block "$SSH_186 $HOST_186" sdp-control-plane

install_unit "$SSH_186 $HOST_186" sdp-agent-gateway.service
$SSH_186 "$HOST_186" "sudo systemctl restart sdp-agent-gateway"
status_block "$SSH_186 $HOST_186" sdp-agent-gateway

echo "    control-plane, agent-gateway, dashboard installed"

echo
echo "done. (configure nginx by hand on 186; see AGENTS.md for the location block.)"