# -*- shell-script -*-

## NEEDS: SKETCH
## Should be included when the current directory is the dir of the Sketch.

SKETCH="${SKETCH:-${DEFAULT_SKETCH}}"

########
######## Keyboard hardware definitions
########

: "${BOARD:=model01}"
: "${MCU:=atmega32u4}"

if [ -z "${ARCH}" ]; then
   ARCH=$(echo "${FQBN}" | sed -n -e 's/^[^:]\+:\([^:]\+\).*/\1/p')
fi

if [ "${ARCH}" = "virtual" ]; then
    : "${FQBN:=keyboardio:virtual:${BOARD}}"

    # Set the compiler path for virtual builds
    #
    if [ -z "${COMPILER_PATH}" ]; then
       COMPILER_PATH="/usr/bin/"
    fi

    COMPILER_PREFIX=""
else
   ARCH="avr"
fi

if [ -z "${FQBN}" ]; then
   : "${FQBN:=keyboardio:avr:${BOARD}}"
fi

########
######## Host OS specific commands
########

## Platform-specific overrides
# Shamelessly stolen from git's Makefile
uname_S=$(uname -s 2>/dev/null || echo not)
uname_O=$(uname -o 2>/dev/null || echo not)


find_device_vid_pid() {
    : ${VID:=$(get_arduino_pref 'build.vid')}
    : ${SKETCH_PID:=$(get_arduino_pref 'build.pid')}
    : ${BOOTLOADER_PID:=$(get_arduino_pref 'bootloader.pid')}
    : ${BOOTLOADER_VID:=$(get_arduino_pref 'bootloader.vid')}
}


get_arduino_pref() {
	pref=$1
	# Strip the preference name. And then strip leading and trailing quotations
	MESSAGE=$(dump_arduino_prefs | grep --max-count=1 ${pref}= | sed -e s/^.*${pref}=// -e 's/^"//' -e 's/"$//')
	echo $MESSAGE
}


dump_arduino_prefs() {
# SKETCH and -build-path in this command are here because of a bug introduced in Arduino 1.8.10
# https://github.com/arduino/arduino-builder/issues/341
    if [ "x${_ARDUINO_PREFS}x" == "xx" ]; then

	    _ARDUINO_PREFS=$("${ARDUINO_BUILDER}" \
		-hardware "${ARDUINO_PATH}/hardware" \
		-hardware "${BOARD_HARDWARE_PATH}" \
		${ARDUINO_TOOLS_FLAG:+"${ARDUINO_TOOLS_FLAG}"} ${ARDUINO_TOOLS_PARAM:+"${ARDUINO_TOOLS_PARAM}"} \
		-tools "${ARDUINO_PATH}/tools-builder" \
		-fqbn "${FQBN}" \
	 	-build-path "${ARDUINO_PATH}" \
   		-dump-prefs  "${SKETCH_DIR}/${SKETCH}.ino" )
    fi
    echo "$_ARDUINO_PREFS"

}

find_device_port() {
    find_device_vid_pid
    DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-linux-udev"
    if [[ "${DEVICE_PORT}" = "" ]]; then
      DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID})"
    else
      echo "DEVICE_PORT=\"${DEVICE_PORT}\" predefined."
    fi
}

reset_device_cmd() {
    if [ -z ${NO_RESET} ]; then
        stty -F ${DEVICE_PORT} 1200 hupcl
    fi
}

find_bootloader_ports() {
    find_device_vid_pid
    : "${BOOTLOADER_VID:=${VID}}"
    DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-linux-udev"
    if [[ "${DEVICE_PORT_BOOTLOADER}" = "" ]]; then
      DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID})"
    else
      echo "DEVICE_PORT_BOOTLOADER=\"${DEVICE_PORT_BOOTLOADER}\" predefined."
    fi
}


MD5="md5sum"

if [ "${uname_S}" = "Darwin" ]; then

    find_device_port() {
	DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-macos"
        DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID})"
    }

    reset_device_cmd() {
	/bin/stty -f ${DEVICE_PORT} 1200
    }

    : "${ARDUINO_PATH:=/Applications/Arduino.app/Contents/Java/}"
    : "${ARDUINO_PACKAGE_PATH:=${HOME}/Library/Arduino15/packages}"
    : "${ARDUINO_LOCAL_LIB_PATH:=${HOME}/Documents/Arduino}"

    MD5="md5"

    find_bootloader_ports() {
        find_device_vid_pid
        : "${BOOTLOADER_VID:=${VID}}"
	DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-macos"
        if [[ "${DEVICE_PORT_BOOTLOADER}" = "" ]]; then
          DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID})"
        else
          echo "DEVICE_PORT_BOOTLOADER=\"${DEVICE_PORT_BOOTLOADER}\" predefined."
        fi
    }

elif [ "${uname_S}" = "FreeBSD" ]; then

    find_device_port() {
	DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-freebsd"
	DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER})"
    }

    reset_device_cmd() {
	/bin/stty -f ${DEVICE_PORT} 1200
    }

    MD5="md5"
    : "${AVR_SIZE:=/usr/local/bin/avr-size}"
    : "${AVR_NM:=/usr/local/bin/avr-nm}"
    : "${AVR_OBJDUMP:=/usr/local/bin/avr-objdump}"
    : "${AVRDUDE:=/usr/local/bin/avrdude}"
    : "${AVRDUDE_CONF:=/usr/local/etc/avrdude.conf}"
    : "${ARDUINO_BUILDER:=/usr/local/bin/arduino-builder}"

    find_bootloader_ports() {
	DEVICE_PORT_PROBER="${KALEIDOSCPE_BIN_DIR}/find-device-port-freebsd"
	DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER})"
    }

    if [ "${ARCH}" = "virtual" ]; then
        : "${COMPILER_PATH:=/usr/local/bin/}"
    fi

elif [ "${uname_O}" = "Cygwin" ]; then
    # The Windows arduino-builder.exe doesn't understand being told to exec against Cygwin symlinks
    CCACHE_NOT_SUPPORTED=1

    # Note: the default ARDUINO_PATH here is the default Arduino installation path on Windows, but it won't actually
    # work in practice right now since we haven't fixed all bugs related to interpretation of spaces in these paths.
    #
    # It's important that all of these be underneath /cygdrive/c so they can be converted to Windows paths that the
    # Windows Arduino binaries can understand.
    : "${ARDUINO_PATH:=/cygdrive/c/Program\ Files\ (x86)/Arduino}"
    : "${ARDUINO_PACKAGE_PATH:=/cygdrive/c/Users/${USER}/AppData/Local/Arduino15/packages}"
    : "${ARDUINO_LOCAL_LIB_PATH:=/cygdrive/c/Users/${USER}/Arduino}"
    TMPDIR="${ARDUINO_LOCAL_LIB_PATH:-/cygdrive/c/Users/${USER}/AppData/Local/Temp}"

    # We need to prevent Windows executables from being passed parameters that are absolute paths, since they won't
    # be interpretable when of the form /cygdrive/c/foo. To work around this, we set the common path root variables
    # to use relative paths instead of absolute paths, since those have mostly platform-agnostic behavior.
    #
    # Note that this trick requires that all of these paths exist on the same drive letter as the current directory,
    # since otherwise even the relative paths would include Cygwin-specific components. So...
    if [[ $(realpath --relative-base=/cygdrive/c .) == /* ]]; then
        echo "kaleidoscope-builder's Cygwin support is currently limited to running from within /cygdrive/c"
        exit 1
    fi

    ARDUINO_PATH="$(realpath --relative-to=./ ${ARDUINO_PATH})"
    ARDUINO_PACKAGE_PATH="$(realpath --relative-to=./ ${ARDUINO_PACKAGE_PATH})"
    ARDUINO_LOCAL_LIB_PATH="$(realpath --relative-to=./ ${ARDUINO_LOCAL_LIB_PATH})"
    TMPDIR="$(realpath --relative-to=./ ${ARDUINO_PATH})"

    find_device_port() {
        find_device_vid_pid
        DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-windows.ps1"
        DEVICE_PORT="$(powershell -noprofile -executionpolicy bypass ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID} -Format Cygwin)"
        DEVICE_COM_PORT="$(powershell -noprofile -executionpolicy bypass ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID} -Format COM)"
    }

    reset_device_cmd() {
        cmd /c mode ${DEVICE_COM_PORT} baud=1200
    }

    find_bootloader_ports() {
        find_device_vid_pid
        : "${BOOTLOADER_VID:=${VID}}"
        DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-windows.ps1"
        DEVICE_PORT_BOOTLOADER="$(powershell -noprofile -executionpolicy bypass ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID} -Format COM)"
    }

fi

######
###### Arduino tools configuration
######

: "${ARDUINO_PATH:=/usr/local/arduino}"
: "${ARDUINO_LOCAL_LIB_PATH:=${HOME}/Arduino}"
: "${ARDUINO_TOOLS_PATH:=${ARDUINO_PATH}/hardware/tools}"
: "${ARDUINO_PACKAGE_PATH:=${HOME}/.arduino15/packages}"

: "${ARDUINO_BUILDER:=${ARDUINO_PATH}/arduino-builder}"
ARDUINO_IDE_VERSION="10607"

######
###### Executable paths
######

# Allow the compiler path to be empty for virtual builds
: "${COMPILER_PATH=${ARDUINO_TOOLS_PATH}/avr/bin/}"

COMPILER_SUFFIX=""

C_COMPILER_BASENAME=$(basename ${CC:-gcc})
CXX_COMPILER_BASENAME=$(basename ${CXX:-g++})
AR_BASENAME=$(basename ${AR:-ar})
OBJCOPY_BASENAME=$(basename ${OBJCOPY:-objcopy})

# Allow the compiler prefix to be empty for virtual builds
: "${COMPILER_PREFIX:=avr-}"
: "${AVR_SIZE:=${COMPILER_PATH}/${COMPILER_PREFIX}size}"
: "${AVR_SIZE_FLAGS:=-C --mcu=${MCU}}"
: "${AVR_OBJDUMP:=${COMPILER_PATH}/${COMPILER_PREFIX}objdump}"
: "${AVR_OBJCOPY:=${COMPILER_PATH}/${COMPILER_PREFIX}objcopy}"
: "${AVR_NM:=${COMPILER_PATH}/${COMPILER_PREFIX}nm}"
: "${AVR_AR:=${COMPILER_PATH}/${COMPILER_PREFIX}ar}"
: "${AVR_GCC:=${COMPILER_PATH}/${COMPILER_PREFIX}${C_COMPILER_BASENAME}}"
AVR_GPLUSPLUS="${AVR_GCC:-${COMPILER_PATH}/${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}}"



: "${AVRDUDE:=${ARDUINO_TOOLS_PATH}/avr/bin/avrdude}"
: "${AVRDUDE_CONF:=${ARDUINO_TOOLS_PATH}/avr/etc/avrdude.conf}"

######
###### Source files and dependencies
######

: "${BOARD_HARDWARE_PATH:=${ARDUINO_LOCAL_LIB_PATH}/hardware}"

if [ ! -z "${ARDUINO_TOOLS_PATH}" ]; then
    ARDUINO_TOOLS_PARAM="${ARDUINO_TOOLS_PATH}"
    ARDUINO_TOOLS_FLAG="-tools"
fi

if [ ! -z "${AVR_GCC_PREFIX}" ]; then
    ARDUINO_AVR_GCC_PREFIX_PARAM="-prefs \"runtime.tools.avr-gcc.path=${AVR_GCC_PREFIX}\""
fi