#!/bin/bash

## Installing base docker-host
wget http://docker.0k.io/get/ -qO - | bash || exit 1

## shlib is now available
. /etc/shlib || {
    echo "shlib is not available. Bailing out." >&2
    exit 1
}


clone_or_update() {
    local pkg="$1" branch=${2:-master} \
          DEPLOY_PATH="/opt/apps" \
          GIT_BASE="https://git.myceliandre.fr/Myceliandre" \
          current_branch
    if [ -d "$DEPLOY_PATH/$pkg" ]; then
        cd "$DEPLOY_PATH/$pkg"
        current_branch=$(git rev-parse --abbrev-ref HEAD)
        if [ "$current_branch" != "$branch" ]; then
            echo "Fatal: $DEPLOY_PATH/$pkg git repos has unexpected branch checkouted."
            echo "  To avoid changing thing, we prefer to bailout."
            return 1
        fi
        git pull -r || return 1
    else
        mkdir -p "$DEPLOY_PATH" && cd "$DEPLOY_PATH"
        git clone "$GIT_BASE/${pkg}" -b "$branch" --depth=1
    fi
}

install_bin() {
    local path="$1" DEST_PATH=/usr/local/bin
    ln -sfnv "$path"/* "$DEST_PATH" || return 1
    find -L "$DEST_PATH" -maxdepth 1 -type l -ilname "$path"/\* -exec rm -v {} \; || return 1
}

set -e

clone_or_update myc-manage || exit 1
install_bin /opt/apps/myc-manage/bin

clone_or_update myc-deploy || exit 1


#[ -e /etc/compose.conf ] || ln -sfv /opt/apps/myc-deploy/etc/compose.conf /etc/compose.conf

## XXXvlab: should get rid of this file in some future
cd /opt/apps/myc-deploy
if ! grep "^DEFAULT_COMPOSE_FILE=$PWD/compose.yml$" /etc/compose/local.conf >/dev/null 2>&1; then
    echo "Adding CWD=$PWD to docker-compose."
    cat <<EOF >> /etc/compose/local.conf
DEFAULT_COMPOSE_FILE=$PWD/compose.yml
EOF
fi

type -t docker-clean || ln -sfv /opt/apps/0k-docker/src/bin/docker-clean /usr/local/bin

if [ -z "$WITHOUT_DOCKER_CLEAN" ]; then
    ln -sfn /opt/apps/0k-docker/src/bin/docker-clean /etc/cron.daily/docker-clean
fi

cd /opt/apps/myc-deploy

cat <<EOF > /root/.pgm.rc
prefix_pg_local_command=" "  ## otherwise, will default to sudo -u postgres

pgpass="/srv/datastore/data/postgres/var/lib/postgresql/data/pgpass"
[ -f "\$pgpass" ] || {
  echo "No '\$pgpass' found. Postgres database doesn't seem to be setup." >&2
  exit 1
}
cp "\$pgpass" /root/.pgpass

PGUSER=\${PGUSER:-postgres}

if [ -z "\$PGHOST" ]; then
  PGHOST=\$(docker-ip | grep postgres | xargs echo | cut -f 3 -d " ") || {
    echo "No local running postgres docker found." >&2
    exit 1
  }
fi
export PGHOST PGUSER
EOF

# if ! [ -s /etc/ssh/vm_git_myceliandre_access_id_rsa ]; then
#     curl -L --fail https://docker.0k.io/get/vm_git_myceliandre_access_id_rsa > /etc/ssh/vm_git_myceliandre_access_id_rsa || {
#         echo "Fatal: Could not retrieve http://docker.0k.io/get/vm_git_myceliandre_access_id_rsa ..." >&2
#         rm -f /etc/ssh/vm_git_myceliandre_access_id_rsa
#         exit 1
#     }
#     ## Not so usefull as it is public !
#     chmod 0600 /etc/ssh/vm_git_myceliandre_access_id_rsa
# fi

mkdir -p /root/.ssh

cat <<EOF >> /root/.ssh/config

Host git.myceliandre.fr
    User git
    IdentityFile /etc/ssh/vm_git_myceliandre_access_id_rsa
    UserKnownHostsFile /dev/null
    StrictHostKeyChecking no
    Port 5022

EOF


##
## We could need some docker-compose for some quick hacks
##
version_gt() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }

if type -p python3 >/dev/null 2>&1 &&
        ! version_gt $(python3 --version | cut -f 2 -d " ") 3.9 ; then
    if ! type -p docker-compose >/dev/null; then
        # seems to require a C compiler
        apt-get install -y build-essential libffi-dev </dev/null &&
            pip install wheel==0.33.6 &&
            pip install pip==19.3.1 cffi==1.12.3 subprocess32==3.5.4 texttable==1.6.2 \
                pyrsistent==0.15.7 \
                git+https://github.com/0k/compose@run_ignore_orphans || exit 1
        ## Bug after updating pip
        hash -d pip || exit 1
    fi
fi

if [ "$DOMAIN" ]; then
    sed -ri "s/^(\s+domain:\s+).*$/\1$DOMAIN/g" compose.yml
fi

if [ "$MAIN_PASSWORD" ]; then
    sed -ri "s/^(\s+admin-password:\s+).*$/\1$MAIN_PASSWORD/g" compose.yml
fi


pip install ovh || exit 1

#compose --debug up odoo apache

## Marker to probe if this script finished it's job
echo "done" > /var/run/myc-installer.0k.io.state