#!/usr/bin/env bash
# Insert / update the Torob Product API v3 proxy on a storefront nginx site.
# Torob POSTs https://{host}/torob_api/v3/products (JWT aud = shop host).
set -euo pipefail

HOST="${1:-}"
API_HOST="${MESHKEE_API_HOST:-api.meshkee.com}"

if [[ -z "$HOST" ]]; then
  echo "usage: patch-nginx-torob.sh <host>" >&2
  exit 1
fi

NGINX_AVAILABLE="/etc/nginx/sites-available/$HOST"

if [[ ! -f "$NGINX_AVAILABLE" ]]; then
  echo "missing nginx site for $HOST" >&2
  exit 1
fi

PATH_LOC="/torob_api/v3/products"

if grep -qF "location = ${PATH_LOC}" "$NGINX_AVAILABLE"; then
  echo "already present: ${PATH_LOC}"
  exit 0
fi

block="$(cat <<NGINX
    location = ${PATH_LOC} {
        proxy_pass https://${API_HOST}/api/v1/tenants/${HOST}/torob_api/v3/products;
        proxy_set_header Host ${API_HOST};
        proxy_ssl_server_name on;
        proxy_set_header X-Real-IP \$remote_addr;
        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto \$scheme;
        proxy_set_header X-Torob-Token \$http_x_torob_token;
        proxy_set_header X-Torob-Token-Version \$http_x_torob_token_version;
        proxy_pass_request_body on;
        proxy_pass_request_headers on;
    }

NGINX
)"

tmp="$(mktemp)"
awk -v block="$block" '
  /location \/ \{/ && !done {
    print block
    done = 1
  }
  { print }
' "$NGINX_AVAILABLE" >"$tmp"
mv "$tmp" "$NGINX_AVAILABLE"
echo "added: ${PATH_LOC}"

nginx -t
systemctl reload nginx
echo "patched nginx Torob product API location for $HOST"