#!/usr/bin/env bash

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# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
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set -euo pipefail
trap 'echo "Error at line $LINENO. Exiting."' ERR

# Namespace where the inference-gateway will be deployed
# Defaults to 'default' if NAMESPACE env var is not set
NAMESPACE=${NAMESPACE:-default}
echo "Installing inference-gateway into namespace: $NAMESPACE"

# Install the Gateway API
GATEWAY_API_VERSION=v1.4.1
kubectl apply -f https://github.com/kubernetes-sigs/gateway-api/releases/download/$GATEWAY_API_VERSION/standard-install.yaml


# Install the Inference Extension CRDs
IGW_LATEST_RELEASE=v1.2.1
kubectl apply -f https://github.com/kubernetes-sigs/gateway-api-inference-extension/releases/download/${IGW_LATEST_RELEASE}/manifests.yaml


# Install and upgrade Kgateway (includes CRDs)
KGTW_VERSION=v2.1.1
helm upgrade -i --create-namespace --namespace kgateway-system --version $KGTW_VERSION \
  kgateway-crds oci://cr.kgateway.dev/kgateway-dev/charts/kgateway-crds

helm upgrade -i --namespace kgateway-system --version $KGTW_VERSION kgateway \
  oci://cr.kgateway.dev/kgateway-dev/charts/kgateway \
  --set inferenceExtension.enabled=true

kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/gateway-api-inference-extension/refs/tags/${IGW_LATEST_RELEASE}/config/manifests/gateway/kgateway/gateway.yaml -n "$NAMESPACE"

kubectl patch gateway inference-gateway -n "$NAMESPACE" --type='json' \
  -p='[{"op": "replace", "path": "/spec/gatewayClassName", "value": "kgateway"}]'