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#!/bin/bash
# SPDX-license-identifier: Apache-2.0
##############################################################################
# Copyright (c) 2018
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

set -o errexit
set -o nounset
set -o pipefail

function _checks_args {
    if [[ -z $1 ]]; then
        echo "Missing CSAR ID argument"
        exit 1
    fi
    if [[ -z $CSAR_DIR ]]; then
        echo "CSAR_DIR global environment value is empty"
        exit 1
    fi
    mkdir -p ${CSAR_DIR}/${1}
}

# destroy_deployment() - This function ensures that a specific deployment is
# destroyed in Kubernetes
function destroy_deployment {
    local deployment_name=$1

    echo "$(date +%H:%M:%S) - $deployment_name : Destroying deployment"
    kubectl delete deployment $deployment_name --ignore-not-found=true --now
    while kubectl get deployment $deployment_name &>/dev/null; do
        echo "$(date +%H:%M:%S) - $deployment_name : Destroying deployment"
    done
}

# recreate_deployment() - This function destroys an existing deployment and
# creates an new one based on its yaml file
function recreate_deployment {
    local deployment_name=$1

    destroy_deployment $deployment_name
    kubectl create -f $deployment_name.yaml
}

# wait_deployment() - Wait process to Running status on the Deployment's pods
function wait_deployment {
    local deployment_name=$1

    status_phase=""
    while [[ $status_phase != "Running" ]]; do
        new_phase=$(kubectl get pods | grep  $deployment_name | awk '{print $3}')
        if [[ $new_phase != $status_phase ]]; then
            echo "$(date +%H:%M:%S) - $deployment_name : $new_phase"
            status_phase=$new_phase
        fi
        if [[ $new_phase == "Err"* ]]; then
            exit 1
        fi
    done
}

# setup() - Base testing setup shared among functional tests
function setup {
    for deployment_name in $@; do
        recreate_deployment $deployment_name
    done

    for deployment_name in $@; do
        wait_deployment $deployment_name
    done
}

# teardown() - Base testing teardown function
function teardown {
    for deployment_name in $@; do
        destroy_deployment $deployment_name
    done
}

if ! $(kubectl version &>/dev/null); then
    echo "This funtional test requires kubectl client"
    exit 1
fi