#!/bin/bash

readonly EXPANDED_CONF="$MIAOU_CONFIGDIR/miaou.expanded.yaml"
readonly WKHTML_VERSION="0.12.6-1"
readonly WKHTML_RELEASE="$WKHTML_VERSION.buster_amd64"

function check_user_odoo() {
    (lxc exec "$CONTAINER" -- id odoo &>/dev/null) || return 12
    return 0
}

function check_target_bgcolor() {
    (lxc exec "$CONTAINER" -- grep -Pq "^\\\$o-community-color: $BACKGROUND_COLOR" /home/odoo/odoo12/addons/web/static/src/scss/primary_variables.scss) || return 13
    return 0
}

function check_wkhtmltox() {
    (lxc exec "$CONTAINER" -- dpkg -l | grep -s wkhtmltox | grep -qs $WKHTML_VERSION) || return 1
}

function check_python() {
    (lxc exec "$CONTAINER" -- test -d /opt/Python-3.7.13) || return 1
}

function check_venv() {
    (lxc exec "$CONTAINER" -- test -d /home/odoo/venv) || return 1
}

function check_favicon() {
    lxc exec "$CONTAINER" -- test -L /home/odoo/odoo12/addons/web/static/src/img/favicon.ico
}

function check_file_odoo-addon-install() {
    (lxc exec "$CONTAINER" -- test -f /home/odoo/odoo12/odoo12-addon-install) || return 23
}

function check() {
    PREFIX="recipe:odoo12:check"
    check_wkhtmltox || return 10
    check_python || return 11
    check_user_odoo || return 12
    check_target_bgcolor || return 13
    check_venv || return 14
    check_favicon || return 15
    check_file_odoo-addon-install || return 23

    echo "container <$CONTAINER> approved successfully!"
    return 0
}

function install() {
    PREFIX="recipe:odoo12:install"
    : $PREFIX

    launch_container "$CONTAINER"
    echo "initializing Odoo12 ... "

    lxc exec "$CONTAINER" -- bash <<EOF
        set -Eeuo pipefail
        echo "installing odoo12..."
        apt-get update && apt-get dist-upgrade -y

        if dpkg -l | grep -s wkhtmltox | grep -qs $WKHTML_VERSION; then
            echo package=wkhtmltox version=$WKHTML_RELEASE already found!
        else
            echo "wkhtmltox version=$WKHTML_RELEASE has to be installed!"
            wget https://github.com/wkhtmltopdf/packaging/releases/download/$WKHTML_VERSION/wkhtmltox_$WKHTML_RELEASE.deb
            dpkg -i wkhtmltox_$WKHTML_RELEASE.deb || (apt -fy install && rm wkhtmltox_$WKHTML_RELEASE.deb)
        fi

        if [[ ! -d /opt/Python-3.7.13 ]]; then
            echo "installing Python-3.7.13..."
            apt-get install -y zlib1g-dev python3-pip python3-venv xz-utils build-essential libssl-dev python3-dev libxml2-dev libxslt1-dev libldap2-dev libsasl2-dev libpq-dev libffi-dev postgresql-client
            wget -O- https://www.python.org/ftp/python/3.7.13/Python-3.7.13.tar.xz | tar -xJ -C /opt
            chown -R root:root /opt/Python-3.7.13
            cd /opt/Python-3.7.13
            ./configure --enable-optimizations --enable-shared
            make -j8 altinstall
            ldconfig /opt/Python3.7.13
            echo "Python-3.7.13...OK"
        else
            echo "Python-3.7.13 already installed!"
        fi

        if ! id -u odoo &>/dev/null; then
            echo "creating system user <odoo>"
            useradd -rms /bin/bash odoo
        else
            echo "user <odoo> already exists!"
        fi

        cat <<EOT | su - odoo
            if [[ ! -d odoo12 ]]; then
                echo "git odoo12 from remote"
                git clone https://github.com/odoo/odoo.git --depth 1 --branch 12.0 odoo12
            else
                echo "git odoo12 already downloaded!"
            fi
            if [[ ! -d venv ]]; then
                echo "installing Python-3.7 virtual env (venv)"
                python3.7 -m venv venv
                source venv/bin/activate
                python -m pip install --upgrade pip
                pip install wheel
                pip install -r odoo12/requirements.txt
            else
                echo "venv (Python-3.7) already installed!"
            fi

            echo "community-color change to $BACKGROUND_COLOR"
            /opt/miaou-bash/tools/append_or_replace "^.*o-community-color:.*" "\\\\\\\$o-community-color: $BACKGROUND_COLOR;" /home/odoo/odoo12/addons/web/static/src/scss/primary_variables.scss

EOT
        mkdir -p /etc/odoo12
EOF

    lxc file push "$MIAOU_BASEDIR/templates/apps/odoo12/odoo12-addon-install" "$CONTAINER/home/odoo/odoo12/odoo12-addon-install"
    lxc exec "$CONTAINER" -- bash <<EOF
        chown odoo:odoo /home/odoo/odoo12/odoo12-addon-install
        chmod 740 /home/odoo/odoo12/odoo12-addon-install
        echo "new script <odoo12-addon-install> added!"
EOF

    echo "push various target-related favicons..."
    for favicon in "$MIAOU_BASEDIR"/templates/apps/odoo12/favicon/*.ico; do
        lxc file push --uid 0 --gid 0 "$favicon" "$CONTAINER/home/odoo/odoo12/addons/web/static/src/img/"
    done
    echo "OK"

    echo "adjust symbolic link according to target=<$TARGET>"
    lxc exec "$CONTAINER" -- rm -f /home/odoo/odoo12/addons/web/static/src/img/favicon.ico
    lxc exec "$CONTAINER" -- ln -s /home/odoo/odoo12/addons/web/static/src/img/favicon-"$TARGET".ico /home/odoo/odoo12/addons/web/static/src/img/favicon.ico
    echo "OK"
}

function compute_bgcolor_target() {
    case "$TARGET" in
    dev) echo "#17a2b8" ;;
    beta) echo "#79A70A" ;;
    prod) echo "#7C7BAD" ;;
    *) echoerr "unknown target <$TARGET>" && exit 10 ;;
    esac
}

### MAIN

. "$MIAOU_BASEDIR/lib/init.sh"
arg1_required "$@"
readonly CONTAINER="$1"
TARGET=$(yq '.target' "$EXPANDED_CONF")
readonly TARGET
BACKGROUND_COLOR=$(compute_bgcolor_target)
readonly BACKGROUND_COLOR

check || (
    install
    check
)