#!/bin/bash

source /var/onap/_commons
source /var/onap/_onap_functions

# _install_bind() - Install bind utils
function _install_bind {
    install_packages bind9 bind9utils
}

# install_java() - Install java binaries
function install_java {
    if is_package_installed openjdk-8-jdk; then
        return
    fi
    source /etc/os-release || source /usr/lib/os-release
    case ${ID,,} in
        *suse)
        ;;
        ubuntu|debian)
            install_package software-properties-common
            add-apt-repository -y ppa:openjdk-r/ppa
        ;;
        rhel|centos|fedora)
        ;;
    esac
    update_repos

    # Remove Java 7
    uninstall_packages default-jre openjdk-7-jdk openjdk-7-jre openjdk-7-jre-headless

    install_package openjdk-8-jdk
    # ca-certificates-java is not a dependency in the Oracle JDK/JRE so this must be explicitly installed.
    /var/lib/dpkg/info/ca-certificates-java.postinst configure
}

# install_maven() - Install maven binaries
function install_maven {
    if is_package_installed maven3; then
        return
    fi
    install_java
    source /etc/os-release || source /usr/lib/os-release
    case ${ID,,} in
        *suse)
        ;;
        ubuntu|debian)
            install_package software-properties-common
            add-apt-repository -y ppa:andrei-pozolotin/maven3
        ;;
        rhel|centos|fedora)
        ;;
    esac
    update_repos
    install_package maven3

    # Remove Java 7
    uninstall_package openjdk-7-jdk

    _configure_maven
}

# install_nodejs() - Download and install NodeJS
function install_nodejs {
    if is_package_installed nodejs; then
        return
    fi
    curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
    install_package nodejs

    # Update NPM to latest version
    npm install npm -g
}

# install_python() - Install Python 2.7 and other tools necessary for development.
function install_python {
    install_packages python2.7 python-dev
}

# _install_pip() - Install Python Package Manager
function _install_pip {
    install_python
    if ! which pip; then
        curl -sL https://bootstrap.pypa.io/get-pip.py | python
    fi
}

# install_python_package() - Install python modules
function install_python_package {
    local python_packages=$@

    _install_pip
    pip install $python_packages
}

# install_python_requirements() - Install a list of python modules defined in requirement.txt file
function install_python_requirements {
    local python_project_path=$1

    _install_pip
    pushd $python_project_path
    pip install -r requirements.txt
    popd
}

# _configure_docker_settings() - Configures Docker settings
function _configure_docker_settings {
    local docker_conf_backup=/tmp/docker.backup
    local docker_conf=/etc/default/docker
    local chameleonsocks_filename=chameleonsocks.sh
    local max_concurrent_downloads=${1:-3}

    cp ${docker_conf} ${docker_conf_backup}
    if [ $http_proxy ]; then
        echo "export http_proxy=$http_proxy" >> $docker_conf
    fi
    if [ $https_proxy ]; then
        echo "export https_proxy=$https_proxy" >> $docker_conf
        #If you have a socks proxy, then use that to connect to the nexus repo
        #via a redsocks container
        if [ $socks_proxy ]; then
            wget https://raw.githubusercontent.com/crops/chameleonsocks/master/$chameleonsocks_filename
            chmod 755 $chameleonsocks_filename
            socks=$(echo $socks_proxy | sed -e "s/^.*\///" | sed -e "s/:.*$//")
            port=$(echo $socks_proxy | sed -e "s/^.*://")
            PROXY=$socks PORT=$port ./$chameleonsocks_filename --install
            rm $chameleonsocks_filename
            cp ${docker_conf_backup} ${docker_conf}
        fi
    fi
    rm ${docker_conf_backup}

    echo "DOCKER_OPTS=\"-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --max-concurrent-downloads $max_concurrent_downloads \"" >> $docker_conf
    usermod -aG docker $USER

    source /etc/os-release || source /usr/lib/os-release
    case ${ID,,} in
        *suse)
        ;;
        ubuntu|debian)
            service docker restart
            sleep 10
        ;;
        rhel|centos|fedora)
        ;;
    esac
}

# install_docker() - Download and install docker-engine
function install_docker {
    if $(docker version &>/dev/null); then
        return
    fi
    source /etc/os-release || source /usr/lib/os-release
    case ${ID,,} in
        *suse)
        ;;
        ubuntu|debian)
            install_packages software-properties-common linux-image-extra-$(uname -r) linux-image-extra-virtual apt-transport-https ca-certificates curl
            curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
            add-apt-repository \
            "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
            $(lsb_release -cs) stable"
        ;;
        rhel|centos|fedora)
        ;;
    esac
    update_repos

    install_package docker-ce
    _configure_docker_settings
}

# install_docker_compose() - Download and install docker-engine 
function install_docker_compose {
    local docker_compose_version=${1:-1.12.0}
    if [ ! -d /opt/docker ]; then
        mkdir /opt/docker
        curl -L https://github.com/docker/compose/releases/download/$docker_compose_version/docker-compose-`uname -s`-`uname -m` > /opt/docker/docker-compose
        chmod +x /opt/docker/docker-compose
    fi
}

# install_chefdk() - Install ChefDK package
function install_chefdk {
    local chefdk_version="2.4.17"

    if is_package_installed chefdk; then
        return
    fi
    pushd $(mktemp -d)
    source /etc/os-release || source /usr/lib/os-release
    case ${ID,,} in
        *suse)
        ;;
        ubuntu|debian)
        chefdk_pkg="chefdk_$chefdk_version-1_amd64.deb"
        chefdk_url="https://packages.chef.io/files/stable/chefdk/$chefdk_version/ubuntu/$VERSION_ID/$chefdk_pkg"

        wget $chefdk_url
        dpkg -i $chefdk_pkg
        apt-get install -f -y
        ;;
        rhel|centos|fedora)
        rpm -Uvh "https://packages.chef.io/files/stable/chefdk/$chefdk_version/el/7/chefdk-$chefdk_version-1.el7.x86_64.rpm"
        ;;
    esac
    popd
}

# _install_ODL() - Download and Install OpenDayLight SDN controller
function _install_ODL {
    if [ ! -d /opt/opendaylight/current ]; then
        mkdir -p /opt/opendaylight/
        wget "https://nexus.opendaylight.org/content/repositories/public/org/opendaylight/integration/distribution-karaf/"$odl_version"/distribution-karaf-"$odl_version".tar.gz" -P /opt/
        tar xvf "/opt/distribution-karaf-"$odl_version".tar.gz" -C /tmp/
        mv "/tmp/distribution-karaf-"$odl_version /opt/opendaylight/current
        rm -rf "/opt/distribution-karaf-"$odl_version".tar.gz"
    fi
}