#!/bin/sh
# Migration 22 --> 23

set -euo pipefail

echo "Migrating HelmReleases: adding application labels for tenant-* namespaces"

# Function to determine application type from HelmRelease name
determine_app_type() {
  local name="$1"
  local app_kind=""
  local app_name=""
  
  # Try to match by prefix (longest match first)
  case "$name" in
    virtual-machine-*)
      app_kind="VirtualMachine"
      app_name="${name#virtual-machine-}"
      ;;
    vm-instance-*)
      app_kind="VMInstance"
      app_name="${name#vm-instance-}"
      ;;
    vm-disk-*)
      app_kind="VMDisk"
      app_name="${name#vm-disk-}"
      ;;
    virtualprivatecloud-*)
      app_kind="VirtualPrivateCloud"
      app_name="${name#virtualprivatecloud-}"
      ;;
    http-cache-*)
      app_kind="HTTPCache"
      app_name="${name#http-cache-}"
      ;;
    tcp-balancer-*)
      app_kind="TCPBalancer"
      app_name="${name#tcp-balancer-}"
      ;;
    clickhouse-*)
      app_kind="ClickHouse"
      app_name="${name#clickhouse-}"
      ;;
    foundationdb-*)
      app_kind="FoundationDB"
      app_name="${name#foundationdb-}"
      ;;
    ferretdb-*)
      app_kind="FerretDB"
      app_name="${name#ferretdb-}"
      ;;
    rabbitmq-*)
      app_kind="RabbitMQ"
      app_name="${name#rabbitmq-}"
      ;;
    kubernetes-*)
      app_kind="Kubernetes"
      app_name="${name#kubernetes-}"
      ;;
    bucket-*)
      app_kind="Bucket"
      app_name="${name#bucket-}"
      ;;
    kafka-*)
      app_kind="Kafka"
      app_name="${name#kafka-}"
      ;;
    mysql-*)
      app_kind="MySQL"
      app_name="${name#mysql-}"
      ;;
    nats-*)
      app_kind="NATS"
      app_name="${name#nats-}"
      ;;
    postgres-*)
      app_kind="PostgreSQL"
      app_name="${name#postgres-}"
      ;;
    redis-*)
      app_kind="Redis"
      app_name="${name#redis-}"
      ;;
    tenant-*)
      app_kind="Tenant"
      app_name="${name#tenant-}"
      ;;
    vpn-*)
      app_kind="VPN"
      app_name="${name#vpn-}"
      ;;
    bootbox)
      app_kind="BootBox"
      app_name="bootbox"
      ;;
    etcd)
      app_kind="Etcd"
      app_name="etcd"
      ;;
    info)
      app_kind="Info"
      app_name="info"
      ;;
    ingress|ingress-*)
      app_kind="Ingress"
      if [ "$name" = "ingress" ]; then
        app_name="ingress"
      else
        app_name="${name#ingress-}"
      fi
      ;;
    monitoring)
      app_kind="Monitoring"
      app_name="monitoring"
      ;;
    seaweedfs)
      app_kind="SeaweedFS"
      app_name="seaweedfs"
      ;;
    *)
      # Unknown type
      return 1
      ;;
  esac
  
  echo "$app_kind|$app_name"
  return 0
}

# Process all HelmReleases in tenant-* namespaces with cozystack.io/ui=true label
kubectl get helmreleases --all-namespaces -l cozystack.io/ui=true -o json | \
  jq -r '.items[] | select(.metadata.namespace | startswith("tenant-")) | "\(.metadata.namespace)|\(.metadata.name)"' | \
  while IFS='|' read -r namespace name; do
    echo "Processing HelmRelease $namespace/$name"
    
    # Determine application type
    app_type=$(determine_app_type "$name")
    status=$?
    if [ $status -ne 0 ] || [ -z "$app_type" ]; then
      echo "Warning: Could not determine application type for $namespace/$name, skipping"
      continue
    fi
    
    app_kind=$(echo "$app_type" | cut -d'|' -f1)
    app_name=$(echo "$app_type" | cut -d'|' -f2)
    app_group="apps.cozystack.io"
    
    # Build labels string
    labels="apps.cozystack.io/application.kind=$app_kind"
    labels="$labels apps.cozystack.io/application.group=$app_group"
    labels="$labels apps.cozystack.io/application.name=$app_name"
    
    # Apply labels using kubectl label --overwrite
    kubectl label helmrelease -n "$namespace" "$name" --overwrite $labels
    echo "Added application labels to $namespace/$name: $labels"
  done

echo "Migration completed"

# Stamp version
kubectl create configmap -n cozy-system cozystack-version \
  --from-literal=version=23 --dry-run=client -o yaml | kubectl apply -f-