#!/usr/bin/env bash
set -eo pipefail

[ "$(uname)" == "Darwin" ] && readlink_cmd="greadlink" || readlink_cmd="readlink"
SCRIPT_DIR="$(dirname $($readlink_cmd -f $0))"

TAO_PATH="${TAO_PATH:-$SCRIPT_DIR/../..}"
BASEIMAGE_REPO="${BASEIMAGE_REPO:-baseimage-tutorial-framework}"
BACKEND_REPO="${BACKEND_REPO:-test-tutorial-framework}"
FRONTEND_REPO="${FRONTEND_REPO:-frontend-tutorial-framework}"
BASEIMAGE_PATH="${TAO_PATH}/${BASEIMAGE_REPO}"
BACKEND_PATH="${TAO_PATH}/${BACKEND_REPO}"
FRONTEND_PATH="${TAO_PATH}/${FRONTEND_REPO}"

BASEIMAGE_NAME="${BASEIMAGE_NAME:-baseimage-tutorial-framework}"
IMAGE_NAME="${IMAGE_NAME:-test-tutorial-framework}"
BACKEND_PORT="${BACKEND_PORT:-8888}"
AVATAO_SECRET="${AVATAO_SECRET:-secret}"
BUILD_CONTEXT="${BUILD_CONTEXT:-solvable}"

run_frontend()
{
    cd $FRONTEND_PATH
    yarn start
}

build_baseimage()
{
    cd $BASEIMAGE_PATH
    VERSION="$(cat VERSION | head -n 1)"
    DATE="$(date +%Y%m%d)"
    docker build -t "${BASEIMAGE_NAME}:${VERSION}-${DATE}" .
}

build_backend()
{
    cd $BACKEND_PATH
    docker build -t $IMAGE_NAME -f ${BUILD_CONTEXT}/Dockerfile --build-arg BUILD_CONTEXT=$BUILD_CONTEXT --build-arg NOFRONTEND=1 .
}

run_backend()
{
    docker run --rm -p $BACKEND_PORT:$BACKEND_PORT -e AVATAO_SECRET=$AVATAO_SECRET $IMAGE_NAME
}

build_and_run_backend()
{
    build_backend
    run_backend
}

start_tfw()
{
    trap 'exit' INT TERM
    trap 'kill 0' EXIT
    build_baseimage
    run_frontend & build_and_run_backend
    wait
}

case $1 in
    start)
        start_tfw
    ;;
    build)
        build_backend
    ;;
    buildtfw)
        build_baseimage
    ;;
    *)
        echo "Usage: tfw.sh [start|build|buildtfw]"
    ;;
esac