#!/usr/bin/env bash
# Install HAProxy in LXC 10210 (order-haproxy) and proxy :80 → Sankofa/Order portal (Next.js).
# Requires SSH to Proxmox host that runs CT 10210 (default: r630-01). See config/ip-addresses.conf.
# Usage: ./scripts/deployment/provision-order-haproxy-10210.sh [--dry-run]
#
# One-time repair (unprivileged CT with host uid 0 on disk → "nobody" inside, apt broken): on Proxmox host,
#   pct stop 10210 && pct mount 10210 && chown -R 100000:100000 /var/lib/lxc/10210/rootfs && pct unmount 10210 && pct start 10210
# (Default Proxmox idmap: container root = 100000 on host.)
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
# shellcheck source=/dev/null
source "$PROJECT_ROOT/config/ip-addresses.conf"

DRY_RUN=false
for a in "$@"; do [[ "$a" == "--dry-run" ]] && DRY_RUN=true; done

PROXMOX="${PROXMOX_ORDER_HAPROXY_NODE:-${PROXMOX_HOST_R630_01:-192.168.11.11}}"
VMID="${ORDER_HAPROXY_VMID:-10210}"
BACKEND_HOST="${ORDER_HAPROXY_BACKEND_HOST:-${IP_SANKOFA_PORTAL:-192.168.11.51}}"
BACKEND_PORT="${ORDER_HAPROXY_BACKEND_PORT:-${SANKOFA_PORTAL_PORT:-3000}}"
TEMPLATE="$PROJECT_ROOT/config/haproxy/order-haproxy-10210.cfg.template"

if [[ ! -r "$TEMPLATE" ]]; then
  echo "❌ Missing template: $TEMPLATE"
  exit 1
fi

CFG=$(sed -e "s/__BACKEND_HOST__/${BACKEND_HOST}/g" -e "s/__BACKEND_PORT__/${BACKEND_PORT}/g" "$TEMPLATE")

echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "Provision order-haproxy (CT $VMID on $PROXMOX)"
echo "  Backend: http://${BACKEND_HOST}:${BACKEND_PORT}"
echo "  Dry-run: $DRY_RUN"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"

if [[ "$DRY_RUN" == true ]]; then
  echo "$CFG"
  exit 0
fi

remote_run() {
  ssh -o BatchMode=yes -o ConnectTimeout=15 -o StrictHostKeyChecking=accept-new \
    "${PROXMOX_SSH_USER:-root}@$PROXMOX" "$@"
}

if ! remote_run "pct status $VMID" 2>/dev/null | grep -q running; then
  echo "❌ CT $VMID is not running on $PROXMOX"
  exit 1
fi

remote_run "pct exec $VMID -- bash -c '
set -e
export DEBIAN_FRONTEND=noninteractive
if ! dpkg -s haproxy >/dev/null 2>&1; then
  apt-get update -qq
  apt-get install -y -qq haproxy
fi
'"

echo "$CFG" | remote_run "pct exec $VMID -- bash -c 'cat > /etc/haproxy/haproxy.cfg'"

remote_run "pct exec $VMID -- bash -c '
set -e
haproxy -c -f /etc/haproxy/haproxy.cfg
systemctl enable haproxy
systemctl restart haproxy
sleep 1
systemctl is-active --quiet haproxy
echo OK: haproxy active
command -v ss >/dev/null && ss -lntp | grep -E \":80|:443\" || true
'"

IP_ORDER="${IP_ORDER_HAPROXY:-192.168.11.39}"
echo ""
echo "✅ Done. From LAN: curl -sS -o /dev/null -w '%{http_code}\\n' http://${IP_ORDER}:80/"
echo "   Then NPM: THE_ORDER_UPSTREAM_IP=${IP_ORDER} THE_ORDER_UPSTREAM_PORT=80 bash scripts/nginx-proxy-manager/update-npmplus-proxy-hosts-api.sh"