#!/usr/bin/env bash

INVOCATION_PATH=`pwd`

function build_checks() {
    if [[ ! -f $INVOCATION_PATH/.build/libparcel.a ]] then
        build_debug
    fi
    cd checks/
    for check_folder in $(ls)
    do
        if [[ -f $check_folder ]] then
            continue
        fi

        cd $check_folder
        gcc src/*.c $INVOCATION_PATH/.build/libparcel.a    -o check.elf -I $INVOCATION_PATH/core-parser/inc/ -I $INVOCATION_PATH/utility/exports/
        cd ..
    done
}

function compile_utility() {

    echo "======== COMPILING UTILITY LIBRARY ========"

    rm -r .build/objects/utility/
    mkdir -p .build/objects/utility/
    for source_file in $(find "utility/src/")
    do
        if [[ ! -f $source_file ]] then
            continue
        fi

        # Cut out the prefix (utility/src/)
        BASENAME=`echo $source_file |  cut -c '13-'`
        echo "---- Compiling '$source_file' ----"
        
        gcc -c $COMPILATION_FLAGS                                   \
            -o .build/objects/utility/$BASENAME.o $source_file  \
            \
            -I utility/inc/ -I utility/exports/
    done
}

function compile_core_parser() {

    echo "======== COMPILING CORE PARSER LIBRARY ========"

    rm -r .build/objects/core-parser
    rm .build/libparcel-parser.a
    mkdir -p .build/objects/core-parser/
    for source_file in $(find "core-parser/src/")
    do
        if [[ ! -f $source_file ]] then
            continue
        fi

        # Cut out the prefix (core-parser/src/)
        BASENAME=`echo $source_file |  cut -c '17-'`
        echo "---- Compiling '$source_file' ----"
        gcc -c $COMPILATION_FLAGS                                   \
            -o .build/objects/core-parser/$BASENAME.o $source_file  \
            \
            -I core-parser/inc/ -I core-parser/exports/             \
            -I utility/exports/
    done
}

function build_debug() {

    COMPILATION_FLAGS="-g2 -Wall -Wextra -D__PAC_DEBUG__"
    compile_utility
    compile_core_parser

    ar -rvs .build/libparcel-parser.a       \
        .build/objects/core-parser/*.o
    
    ar -rvs .build/libparcel-utility.a       \
        .build/objects/utility/*.o

}

function build_release() {

    COMPILATION_FLAGS="-O2 -Wall -D__PAC_RELEASE__"
    compile_utility
    compile_core_parser

    ar -rvs .build/libparcel.a              \
        .build/objects/core-parser/*.o      \

    ar -rvs .build/libparcel-utility.a       \
        .build/objects/utility/*.o

}

function clean() {
    rm -R .build/objects/*.o
    rm .build/libparcel-parser.a
    rm .build/libparcel-utility.a
}

case $1 in
    "clean")
        clean
        ;;
    "debug")
        build_debug
        ;;
    "release")
        build_release
        ;;
    "checks")
        build_checks
        ;;
    *)
        echo "Unknown action '$1'. Possible Actions are:"
        echo "[ clean | debug | release | checks ]"
esac