#!/bin/bash -e
# Installs or upgrades to the best possible Ansible release, so iiab-install can proceed.
# Ensure you are online before running this script!

GOOD_VER="2.4.2"       # Ansible version for OLPC.  On other OS's we install/upgrade to the latest Ansible.
                       # Pinning to 2.4.x could be considered in future, if truly nec?
VER="undefined"
# FOUND="false"        # NOT USED AS OF 2017-12-11
# FAMILY="undefined"   # NOT USED AS OF 2017-12-11
# below are unused for future use
# URL="NA"

export DEBIAN_FRONTEND=noninteractive

if ! [ `which ansible-playbook` ]; then
    echo "Installing --- Please Wait"
    if [ -f /etc/centos-release ]; then
        yum -y install ca-certificates nss epel-release
        yum -y install git bzip2 file findutils gzip hg svn sudo tar which unzip xz zip libselinux-python
        yum -y install python-pip python-setuptools python-wheel patch
        yum -y install http://releases.ansible.com/ansible/rpm/release/epel-7-x86_64/ansible-2.4.2.0-1.el7.ans.noarch.rpm
        # FOUND="true"
        # FAMILY="redhat"   # NOT USED AS OF 2017-12-11
#    elif [ -f /etc/fedora-release ]; then
#        VER=`grep VERSION_ID /etc/*elease | cut -d= -f2`
#        URL=https://github.com/jvonau/iiab/blob/ansible/vars/fedora-$VER.yml
#        dnf -y install ansible git bzip2 file findutils gzip hg svn sudo tar which unzip xz zip libselinux-python
#        dnf -y install python-pip python-setuptools python-wheel patch
#        FOUND="true"
#        FAMILY="redhat"
    elif [ -f /etc/olpc-release ]; then
        yum -y install ca-certificates nss
        yum -y install git bzip2 file findutils gzip hg svn sudo tar which unzip xz zip libselinux-python
        yum -y install python-pip python-setuptools python-wheel patch
        pip install --upgrade pip setuptools wheel #EOL just do it
        pip install ansible==$GOOD_VER --disable-pip-version-check
        # FOUND="true"
        # FAMILY="olpc"   # NOT USED AS OF 2017-12-11
    elif [ -f /etc/debian_version ] || [[ `grep -i raspbian /etc/*elease` ]]; then
        if [[ ! `grep -i ansible /etc/apt/sources.list` ]] && [ ! -f /etc/apt/sources.list.d/ansible ]; then
            apt -y install dirmngr python-pip python-setuptools python-wheel patch
            echo "deb http://ppa.launchpad.net/ansible/ansible/ubuntu xenial main" \
                 >> /etc/apt/sources.list.d/ansible.list
            apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 93C4A3FD7BB9C367
        fi
        # FOUND="true"
        # FAMILY="debian"   # NOT USED AS OF 2017-12-11
    elif [[ `grep -i ubuntu /etc/lsb-release` ]] || [[ `grep -i ubuntu /etc/os-release` ]]; then
        apt -y install python-pip python-setuptools python-wheel patch
        apt-add-repository -y ppa:ansible/ansible
        # FOUND="true"
        # FAMILY="debian"   # NOT USED AS OF 2017-12-11
    # fi
    # if [ ! $FOUND = "true" ]; then
    else
        echo "WARN: Could not detect distro or distro unsupported"
        exit 1
    fi
else
    VER=`ansible --version | head -n 1 | cut -f 2 -d " "`
    echo "Current ansible version installed is $VER"
    if [ -f /etc/centos-release ] || [ -f /etc/fedora-release ]; then
        echo "Please use your system's package manager to update ansible"
        exit 0
    elif [ -f /etc/olpc-release ]; then
        echo "Please use pip package manager to update ansible"
        exit 0
    #fi
    #if [[ `grep -qi ansible /etc/apt/sources.list` ]] || [ -f /etc/apt/sources.list.d/ansible*.list ]; then
    elif [[ `grep -i ansible /etc/apt/sources.list` ]] || ls /etc/apt/sources.list.d/ansible*.list >/dev/null 2>&1 ; then
        echo "Ansible repo(s) found within /etc/apt/sources.list*"
    else
        echo "Upstream ansible source repo not found, please uninstall ansible and re-run this script"
        exit 1
    fi
fi

if [ ! -f /etc/centos-release ] && [ ! -f /etc/fedora-release ] && [ ! -f /etc/olpc-release ]; then
    echo "Using apt to check for updates, then install/upgrade ansible"
    apt update
    apt -y install ansible
fi

# needed?
mkdir -p /etc/ansible/
echo -e '[local]\nlocalhost\n' > /etc/ansible/hosts