#!/bin/bash
on_err() {
	code=$?
    if echo -n "$BASH_COMMAND" | grep "^docker" >/dev/null 2>/dev/null; then
        exit $code
    fi
	echo "Error: Command exited with non-zero status ($code)" >&2
	echo "Command: $BASH_COMMAND"
	exit $code
}
have_image() {
    IMAGES="$(docker images --format json)"
    if echo "$IMAGES" | jq '.Repository' | grep '^null$'; then
        IMAGES="$(echo "$IMAGES" | jq '.[].Names' | grep -v null | jq '.[]' --raw-output)"
    else
        IMAGES="$(echo "$IMAGES" | jq '.Repository' --raw-output)"
    fi
    echo "$IMAGES" | sed 's/:.*$//' | sed 's@^.*/@@' | grep -Fx "$1" >/dev/null 2>/dev/null
    return $?
}
trap on_err ERR
export first_arg="$1"
if [ -z "$1" ]; then
    export first_arg="build"
fi
shift || true
build_cmake() {
    pushd "$1"
    shift
    git submodule update --init --recursive
    mkdir -p "build-docker" && cd "build-docker"
    cmake ..
    cmake --build . "$@"
    cmake --install .
    popd
}
if [ "$first_arg" = "in-docker" ]; then
    ARGS=( "$@" )
    cd /src
    git config --global --add safe.directory /src
    build_cmake subprojects/protobuf "${ARGS[@]}"
    pushd subprojects/grpc
    git apply ../../grpc.patch  || true
    popd
    build_cmake subprojects/grpc "${ARGS[@]}"
    mkdir -p /src/build-docker && cd /src/build-docker
    export CMAKE_EXPORT_COMPILE_COMMANDS=ON
    cmake -DDISABLE_GTK_UI=ON -DCMAKE_BUILD_TYPE=Debug ..
    cmake --build . "${ARGS[@]}"
else
    export second_arg="$1"
    shift || true
    if [ -z "$second_arg" ]; then
        export second_arg="debian"
    fi
    export tag="looper-build-$second_arg"
    if [ "$first_arg" = "env" ]; then
        if [ -d "build-env/$second_arg" ]; then
            docker build "build-env/$second_arg" -t "$tag"
        fi
    elif [ "$first_arg" = "build" ]; then
        if ! have_image "$tag"; then
            "$0" env "$second_arg"
        fi
        docker run -v $PWD:/src "$tag" "/src/build-docker.sh" "in-docker" "$@"
    fi
fi