#!/bin/bash
SCRIPTPATH=$(cd "$(dirname "$0")"; pwd -P)
SOURCE_DIR=$(cd "$SCRIPTPATH" && cd ../.. && pwd -P)
DATA_DIR=$SOURCE_DIR/tmp/postgres

show_help() {
cat <<EOF
Usage: ${0##*/} [-h] [--init [--patch DIR]]

    --init        perform first-time initialization

    --patch DIR   patch ember-data-source with missing dist files from DIR
                  (for example, "--patch ~/repos/ember-source-data/dist")
                  requires --init to also be passed

EOF
}

initialize=""
patch_source=""

while [ "${#@}" -ne "0" ]; do
    case "$1" in
        -h | --help)
            show_help
            exit 0
            ;;
        -i | --init)
            initialize="initialize"
            ;;
        -p | --patch)
            patch_source="$2"
            shift
            ;;
        *)
            echo "unexpected argument: $1" >& 2
            show_help >& 2
            exit 1
            ;;
    esac
    shift
done

if [ -n "${patch_source}" ] && [ "${initialize}" != "initialize" ]; then
    echo "error: the --init flag is required when using --patch" >& 2
    show_help >& 2
    exit 2
fi

echo "Using source in: ${SOURCE_DIR}"
echo "Using data in:   ${DATA_DIR}"

mkdir -p "${DATA_DIR}"

docker run -d -p 3000:3000 -v $DATA_DIR:/shared/postgres_data -v $SOURCE_DIR:/src --hostname=discourse --name=discourse_dev --restart=always discourse/discourse_dev:1.3.7 /sbin/boot

if [ "${initialize}" = "initialize" ]; then
    echo "Installing gems..."
    ${SCRIPTPATH}/bundle install

    if [ -n "${patch_source}" ]; then
        echo "Patching ember-data-source-2.3.0.beta.5 gems..."
        docker exec discourse_dev /bin/bash -c "mkdir -p /usr/local/lib/ruby/gems/2.3.0/gems/ember-data-source-2.3.0.beta.5/dist"
        for f in "${patch_source}"/globals/*.js; do
            docker cp $f discourse_dev:/usr/local/lib/ruby/gems/2.3.0/gems/ember-data-source-2.3.0.beta.5/dist/$(basename $f)
        done
    fi

    echo "Migrating database..."
    ${SCRIPTPATH}/rake db:migrate

    echo "Creating admin user..."
    ${SCRIPTPATH}/rake admin:create
fi