#!/bin/bash

cmake_version="3.10.3"

arr_cmake_v=(${cmake_version//./ })
cmake_version_major=(${arr_cmake_v[0]})
cmake_version_minor=(${arr_cmake_v[1]})
cmake_version_patch=(${arr_cmake_v[2]})

# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false

case "`uname`" in
    CYGWIN* )
        cygwin=true
        ;;
    Darwin* )
        darwin=true
        ;;
    MINGW* )
        msys=true
        ;;
    NONSTOP* )
        nonstop=true
        ;;
esac

# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
    cd "$(dirname "$0")"
fi

cmake_bin="./cmakew/cmake-$cmake_version/bin/cmake"

# download cmake if neccessary
if [ ! -f "$cmake_bin" ]; then
    download_link=""

    if [ "$darwin" = true ]; then 
        download_link="https://cmake.org/files/v$cmake_version_major.$cmake_version_minor/cmake-$cmake_version-Darwin-x86_64.tar.gz"        
    else
        download_link="https://cmake.org/files/v$cmake_version_major.$cmake_version_minor/cmake-$cmake_version-Linux-x86_64.tar.gz"   
    fi 

    curl "$download_link" -o "/tmp/cmake-$cmake_version.tar.gz"  
    mkdir -p "cmakew/cmake-$cmake_version"      
    tar -xzf "/tmp/cmake-$cmake_version.tar.gz" -C "./cmakew/cmake-$cmake_version" --strip-components=1
    rm "/tmp/cmake-$cmake_version.tar.gz" 
fi 

# We build the pattern for arguments to be converted via cygpath
if [ "$cygwin" = true ]; then
    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
    SEP=""

    for dir in $ROOTDIRSRAW ; do
        ROOTDIRS="$ROOTDIRS$SEP$dir"
        SEP="|"
    done

    OURCYGPATTERN="(^($ROOTDIRS))"

    # Add a user-defined pattern to the cygpath arguments
    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
    fi

    # Now convert the arguments - kludge to limit ourselves to /bin/sh
    i=0
    for arg in "$@" ; do
        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option

        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
        else
            eval `echo args$i`="\"$arg\""
        fi

        i=$((i+1))
    done

    case $i in
        (0) set -- ;;
        (1) set -- "$args0" ;;
        (2) set -- "$args0" "$args1" ;;
        (3) set -- "$args0" "$args1" "$args2" ;;
        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
    esac
fi

# run cmake
exec "$cmake_bin" "$@"