#!/bin/bash
# Copyright (C) 2025 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#
# Use "ravehleper pta" to create a shell script which:
# - Reads the text "policy" files
# - Convert to java annotations (using sed)
#

set -e


# Uncomment it to always build ravenhelper (slow)
# ${BUILD_CMD:-m} ravenhelper

# Get the target directory. Default to $ANDROID_BUILD_TOP.
TARGET_DIR="${TARGET_DIR:-${ANDROID_BUILD_TOP?\$ANDROID_BUILD_TOP must be set}}"

echo "Target dir=$TARGET_DIR"

cd "$TARGET_DIR"

# Add -v or -d as needed.
extra_args="$@"

OUT_SCRIPT="${OUT_SCRIPT:-/tmp/pta.sh}"

rm -f "$OUT_SCRIPT"

# If you want to run on other files, run this script with the following
# env vars predefined.

POLICIES="${POLICIES:-
frameworks/base/ravenwood/texts/ravenwood-common-policies.txt
frameworks/base/ravenwood/texts/ravenwood-framework-policies.txt
}"

SOURCES="${SOURCES:-
frameworks/base/core/java/
frameworks/base/graphics/java/
}"

AAC="${AAC:-frameworks/base/ravenwood/texts/ravenwood-annotation-allowed-classes.txt}"

with_flag() {
    local flag="$1"
    shift

    for arg in "$@"; do
        echo "$flag $arg"
    done
}

run() {
    echo "Running: $*"
    "$@"
}

run_pta() {
    local extra_args="$@"

    run ${RAVENHELPER_CMD:-ravenhelper pta} \
        --output-script $OUT_SCRIPT \
        --annotation-allowed-classes-file $AAC \
        $(with_flag --policy-override-file $POLICIES) \
        $(with_flag --src $SOURCES) \
        $extra_args

    if ! [[ -f $OUT_SCRIPT ]] ; then
        echo "No files need updating."
        # no operations generated.
        exit 0
    fi

    echo
    echo "Created script at $OUT_SCRIPT. Run it with: sh $OUT_SCRIPT"
    return 0
}

run_pta "$extra_args"