#!/bin/bash

deployk8s(){
  tagv1='v1'
  tagv2='v2'
  IMAGE_NAME=$REGISTRY/$DOCKER_NAMESPACE/$PROJECTNAME
  IMAGE_v1=$IMAGE_NAME:$tagv1
  IMAGE_v2=$IMAGE_NAME:$tagv2

  if [[ "$(docker images -q $IMAGE_v1 2> /dev/null)" != "" ]]; then
      if [[ "$(docker images -q $IMAGE_v2 2> /dev/null)" != "" ]]; then
        image_list=$(docker image ls --format "{{.Repository}}:{{.Tag}}|{{.CreatedAt}}" | grep "$IMAGE_NAME" | sort -t "|" -k 2,2)
        filtered_images=$(echo "$image_list" | awk -F ':' -v name="$IMAGE_NAME" '$1 == name')
        image_count=$(echo "$filtered_images" | wc -l)
        if [ $image_count == 2 ]; then
            images_to_delete=1
            images_to_delete_list=$(echo "$filtered_images" | head -n $images_to_delete | cut -d "|" -f 1)

            for image_d in $images_to_delete_list; do
              if [[ $image_d == *$DOCKER_NAMESPACE* ]]; then
                  docker image rm $image_d

                  OLD_IFS="$IFS"
                  IFS=":"
                  arr=($image_d)
                  IFS="$OLD_IFS"
                  DOCKER_IMAGE_TAG=${arr[1]}
              fi
            done
        fi
      else
          DOCKER_IMAGE_TAG=$tagv2
      fi
  else
      DOCKER_IMAGE_TAG=$tagv1
  fi

  docker build --no-cache -f Dockerfile -t $REGISTRY/$DOCKER_NAMESPACE/$PROJECTNAME:$DOCKER_IMAGE_TAG .
  docker push $REGISTRY/$DOCKER_NAMESPACE/$PROJECTNAME:$DOCKER_IMAGE_TAG
  envsubst < deploy.yaml | kubectl apply -f -
}

deployk8s ""