#!/bin/bash
# Copyright 2020 The Dawn & Tint Authors
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
ROOT_DIR="$( cd "${SCRIPT_DIR}/.." >/dev/null 2>&1 && pwd )"

set -e  # fail on error

if ! command -v clang_format.py &> /dev/null; then
    echo "clang_format.py not found on PATH"
    exit 1
fi

if ! command -v gn &> /dev/null; then
    echo "gn not found on PATH"
    exit 1
fi

CLANG_FORMAT_FILES=""
CLANG_FORMAT_FILES+="`find src -name "*.h"` "
CLANG_FORMAT_FILES+="`find src -name "*.cc"` "
CLANG_FORMAT_FILES+="`find src -name "*.cpp"` "
CLANG_FORMAT_FILES+="`find src -name "*.m"` "
CLANG_FORMAT_FILES+="`find src -name "*.mm"` "
CLANG_FORMAT_FILES+="`find include -name "*.h"` "

GN_FILES="BUILD.gn "
GN_FILES+="`find src -name "*.gn"` "

if command -v go &> /dev/null; then
    # Go is installed. Run in parallel for speed wins
    ${SCRIPT_DIR}/run run-parallel  \
         clang_format.py -i         \
         $ -- $CLANG_FORMAT_FILES

    ${SCRIPT_DIR}/run run-parallel  \
         gn format                  \
         $ -- $GN_FILES
else
    clang_format.py -i $CLANG_FORMAT_FILES
    gn format $GN_FILES
fi