#!/usr/bin/env bash
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#

if [ -z "$CHART_HOME" ]; then
    echo "error: CHART_HOME should be initialized"
    exit 1
fi

OUTPUT=${CHART_HOME}/output
OUTPUT_BIN=${OUTPUT}/bin
PULSARCTL_VERSION=v3.0.2.6
PULSARCTL_BIN=${HOME}/.pulsarctl/pulsarctl
export PATH=${HOME}/.pulsarctl/plugins:${PATH}

discoverArch() {
  ARCH=$(uname -m)
  case $ARCH in
    x86) ARCH="386";;
    x86_64) ARCH="amd64";;
    i686) ARCH="386";;
    i386) ARCH="386";;
    arm64) ARCH="arm64";;
  esac
}

discoverArch
OS=$(echo `uname`|tr '[:upper:]' '[:lower:]')

test -d "$OUTPUT_BIN" || mkdir -p "$OUTPUT_BIN"

function pulsar::verify_pulsarctl() {
    if test -x "$PULSARCTL_BIN"; then
        return
    fi
    return 1
}

function pulsar::ensure_pulsarctl() {
    if pulsar::verify_pulsarctl; then
        return 0
    fi
    echo "Get pulsarctl install.sh script ..."
    install_script=$(mktemp)
    trap "test -f $install_script && rm $install_script" RETURN
    curl --retry 10 -L -o $install_script https://raw.githubusercontent.com/streamnative/pulsarctl/master/install.sh
    chmod +x $install_script
    $install_script --user --version ${PULSARCTL_VERSION}
}