#!/bin/bash
set -e

SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

TEST_DIR="$SCRIPT_DIR/test"

rm -rf $TEST_DIR
mkdir $TEST_DIR
 
"$SCRIPT_DIR/output/dehydrate.amd64" src $TEST_DIR

cat <<EOF > test/main.cpp
#include "_src.hpp"

#include <string>
#include <filesystem>

int main() {
// get the current path to this executable
    std::filesystem::path exepath= std::filesystem::canonical("/proc/self/exe");
    recreate_src::recreate_tree(exepath.parent_path().string()+"/temp");
    return 0;
}
EOF

g++ -std=c++17 -I $TEST_DIR -o $TEST_DIR/testexe $TEST_DIR/main.cpp $TEST_DIR/_src.cpp

echo "----------------------------------------"
echo "Should generate all files from src/"
$TEST_DIR/testexe

# second time should be no changes (hash should match)
echo "----------------------------------------"
echo "Should be no changes - rerun on same output"
$TEST_DIR/testexe


# third time just two files changed
echo "----------------------------------------"
echo "Should see: hash.cpp - updated, and generator.cpp - created."
rm $TEST_DIR/temp/generator.cpp
echo "whee!" >> $TEST_DIR/temp/hash.cpp

$TEST_DIR/testexe