#!/bin/sh
## keeps the ansible playbooks updated from gitea
## a quick check confirms alterationa to local files
## else.. those are updated with latest from gitea

set -u

## -- path to the Ansible dirs
#ANSBASE=/var/lib/ansible/
ANSBASE="/root/ansible"
REPO="ansible-fmb"
## -- node set to the first parameter passed
NODE=${1:-"ts-el9.local"}

INVENTORY=${ANSBASE}/${REPO}

function apply_ansible
{
    cd ${ANSBASE}/${REPO}
    echo -e "$(date +'%F_%R:%S'): applying yaml from ${REPO} ..."
    ansible-playbook -D -i ${ANSBASE}/${REPO}/inventory -l ${NODE} ${ANSBASE}/${REPO}/standalone-playbooks/epel.yml
    ansible-playbook -D -i ${ANSBASE}/${REPO}/inventory -l ${NODE} ${ANSBASE}/${REPO}/site.yml
}

echo "$(date +'%F_%R:%S'):  ==== $(basename $0): ${NODE} START ==== "

## -- create directory if missing
[ ! -d ${ANSBASE} ] && mkdir -p ${ANSBASE}

cd ${ANSBASE}
if [ ! -d ${ANSBASE}/${REPO} ]
then
    ## -- initial clone here if dir is missing (and initial apply)
    echo "$(date +'%F_%R:%S'): initial clone needed:"
    git clone deploy:/tombstones/${REPO}.git ${ANSBASE}/${REPO}
    apply_ansible
elif [ -d ${ANSBASE}/${REPO} ]
then
    ## -- check first
    echo -e "$(date +'%F_%R:%S'): checking ${REPO} ... \c"
    cd ${ANSBASE}/${REPO}
    STATUS="$(git status | tail -n1)"

    ## -- Checking if something changed locally that needs to be fixed
    if [[ !  ${STATUS} =~ "nothing to commit" ]]
    then
        ## -- oops... something has changed our end - fix it!
        echo "fix required - showing diff on next line:"
        git diff
        git fetch origin &> /dev/null
        git reset --hard origin/master &> /dev/null
        echo "$(date +'%F_%R:%S'): ${REPO} fixed!"
    else
        echo " ${STATUS}"
    fi

    ## -- perform an update (pull) here
    RESULTS="$(git pull | tail -n1)"
    echo "$(date +'%F_%R:%S'): ${RESULTS}"
    if [[ !  ${RESULTS} =~ "up to date" ]]
    then
        ## -- looks like there's been some changes
        apply_ansible
    fi
fi

echo "$(date +'%F_%R:%S'): ------ $(basename $0): ${NODE} END ------"