#!/usr/bin/env bash
#
# Deploy app to k8s using fluxcd
#

set -o pipefail

DEPLOY_MODE="flux"
readonly DEPLOY_MODE
APP_NAMESPACE="app"
readonly APP_NAMESPACE
MONITORING_NAMESPACE="monitoring"
readonly MONITORING_NAMESPACE
PGSQLHA_CHART_VERSION="12.3.7"
readonly PGSQLHA_CHART_VERSION
PGSQLHA_OCI_URL="oci://registry-1.docker.io/bitnamicharts/postgresql-ha"
readonly PGSQLHA_OCI_URL
GTFSO_IMPORT_CHART_VERSION="0.1.0"
readonly GTFSO_IMPORT_CHART_VERSION
GTFSO_VBB_CHART_VERSION="0.1.0"
readonly GTFSO_VBB_CHART_VERSION
PROM_STACK_CHART_VERSION="55.7.0"
readonly PROM_STACK_CHART_VERSION

# Create namespaces
kubectl create namespace "${APP_NAMESPACE}"
kubectl create namespace "${MONITORING_NAMESPACE}"

# Add Deployments / Helm Charts either via fluxcd or Helm
if [ "flux" == $DEPLOY_MODE ]; then
    # Add Helm Charts via Flux HelmRelease CRD
    printf "Using flux to create HelmRelease\n"
    # App
    # Add a git repository as source for Helm Charts
    ./flux create source git e2m \
        --url=https://git.e2m.io/mue/obch \
        --branch dev \
        --namespace "${APP_NAMESPACE}"
    # Add a Helm OCI repository as source for Helm Charts
    ./flux create source helm bitnami \
       --url=oci://registry-1.docker.io/bitnamicharts \
       --namespace "${APP_NAMESPACE}"
    ./flux create helmrelease pgsql-ha \
        --chart postgresql-ha \
        --chart-version "${PGSQLHA_CHART_VERSION}" \
        --source HelmRepository/bitnami \
        --namespace "${APP_NAMESPACE}"
    ./flux create helmrelease gtfso-import \
        --chart charts/gtfso-import \
        --namespace ${APP_NAMESPACE} \
        --source GitRepository/e2m
    ./flux create helmrelease gtfso-vbb \
        --chart charts/gtfso-vbb \
        --namespace ${APP_NAMESPACE} \
        --source GitRepository/e2m
    # Monitoring
    ./flux create source helm prometheus-community \
        --url=https://prometheus-community.github.io/helm-charts \
        --namespace "${MONITORING_NAMESPACE}"
    ./flux create helmrelease prometheus \
        --chart kube-prometheus-stack \
        --chart-version "${PROM_STACK_CHART_VERSION}" \
        --namespace "${MONITORING_NAMESPACE}" \
        --source=HelmRepository/prometheus-community
elif [ "helm" == $DEPLOY_MODE ]; then
    # Add Helm Charts via Helm
    printf "Using Helm to install Charts\n"
    # App
    helm install pgsql-ha "${PGSQLHA_OCI_URL}" \
        --version "${PGSQLHA_CHART_VERSION}" \
        --namespace "${APP_NAMESPACE}"
    helm install gtfso-import charts/gtfso-import \
        --version "${GTFSO_IMPORT_CHART_VERSION}" \
        --namespace "${APP_NAMESPACE}"
    helm install gtfso-vbb charts/gtfso-vbb \
        --version "${GTFSO_VBB_CHART_VERSION}" \
        --namespace "${APP_NAMESPACE}"
    # Monitoring
    helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
    helm repo update
    helm install prometheus prometheus-community/kube-prometheus-stack
fi