#!/bin/bash
set -e
clear
cd $(dirname $0)

printHelpExit() {
    echo "$0 clean       | remove build results"
    echo "$0 build       | build everything"
    echo "$0 install     | move build results into the install folder"
    echo "$0 test        | run the tests"
    echo "$0 valgrind    | run the tests with valgrind"
    echo "$0 coverage    | generate code coverage"
    echo "$0 performance | run the performance tests"
    echo "$0 final       | find classes / structs which are not final"
    echo "$0 macro       | find macros without CORE" 
    echo "$0 include     | find system includes" 
    echo "$0 time        | check build time"
    exit 0
}

# TODO gcovr https://gcovr.com/en/5.0/guide.html

task=$1
if [ -z "$task" ]; then
    printHelpExit
fi

# tasks
build=false
test=false
valgrind=false
performance=false
time=false
install=false
coverage=false
profile=$(cat profile)

# parsing
if [ "$task" = "clean" ]; then
    rm -rf build install
    exit 0
elif [ "$task" = "build" ]; then
    build=true
elif [ "$task" = "install" ]; then
    build=true
    install=true
elif [ "$task" = "coverage" ]; then
    build=true
    coverage=true
    test=true
elif [ "$task" = "test" ]; then
    build=true
    test=true
elif [ "$task" = "valgrind" ]; then
    build=true
    valgrind=true
elif [ "$task" = "performance" ]; then
    build=true
    performance=true
elif [ "$task" = "time" ]; then
    build=true
    time=true
elif [ "$task" = "final" ]; then
    grep -r " class" src include | grep -v -E 'final|enum|.git' || true
    grep -r " struct" src include | grep -v -E 'final|enum|.git' || true
    exit 0
elif [ "$task" = "macro" ]; then
    grep -r "#define" src include | grep -v " CORE" || true
    exit 0
elif [ "$task" = "include" ]; then
    echo "System includes in header files:"
    grep -r "#include <" src include | grep "\.hpp" || true
    echo "-------------------------------------------------" 
    echo "System includes in source files:"
    grep -r "#include <" src include | grep "\.cpp" || true
    exit 0
else
    echo "unknown task"
    printHelpExit
fi

# task execution
if $build; then
    if [ ! -e build ]; then 
        cmake -B build -S . -G Ninja -DCMAKE_INSTALL_PREFIX=./install \
            -DCMAKE_BUILD_TYPE=$profile
    fi
    ninja -C build
fi
if $install; then
    ninja -C build install
fi
if $test; then
    cd build
    ./test light || true
    cd ..
fi
if $valgrind; then
    cd build
    valgrind ./test light valgrind || true
    cd ..
fi
if $performance; then
    cd build
    ./performance
fi
if $time; then
    lines=$(cat build/.ninja_log | grep "^[0-9]")

    startMillis=0
    endMillis=0
    name=""
    i=0
    output=""
    for arg in $lines; do
        if [ $i == 0 ]; then
            startMillis=$arg
        elif [ $i == 1 ]; then
            endMillis=$arg
        elif [ $i == 3 ]; then
            name=$arg
            diff=$(expr $endMillis - $startMillis)
            output="${output}\n$diff $name"
        fi
        i=$(expr $(expr $i + 1) % 5) && true
    done
    printf "$output" | sort -n
fi
if $coverage; then
    gcovr -r . build -e test -e performance
fi