# Copyright 2014-present PlatformIO <contact@platformio.org>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import sys
from platform import system
from os import makedirs
from os.path import isdir, join

from platformio.util import get_serial_ports

from SCons.Script import (ARGUMENTS, COMMAND_LINE_TARGETS, AlwaysBuild,
                          Builder, Default, DefaultEnvironment)


def BeforeUpload(target, source, env):  # pylint: disable=W0613,W0621
    upload_options = {}
    if "BOARD" in env:
        upload_options = env.BoardConfig().get("upload", {})

    env.AutodetectUploadPort()
    before_ports = get_serial_ports()

    if upload_options.get("use_1200bps_touch", False):
        env.TouchSerialPort("$UPLOAD_PORT", 1200)

    if upload_options.get("wait_for_upload_port", False):
        env.Replace(UPLOAD_PORT=env.WaitForNewSerialPort(before_ports))


env = DefaultEnvironment()
platform = env.PioPlatform()
board = env.BoardConfig()

env.Replace(
    AR="arm-none-eabi-ar",
    AS="arm-none-eabi-as",
    CC="arm-none-eabi-gcc",
    CXX="arm-none-eabi-g++",
    GDB="arm-none-eabi-gdb",
    OBJCOPY="arm-none-eabi-objcopy",
    RANLIB="arm-none-eabi-ranlib",
    SIZETOOL="arm-none-eabi-size",

    ARFLAGS=["rc"],

    SIZEPROGREGEXP=r"^(?:\.text|\.data|\.rodata|\.text.align|\.ARM.exidx)\s+(\d+).*",
    SIZEDATAREGEXP=r"^(?:\.data|\.bss|\.noinit)\s+(\d+).*",
    SIZECHECKCMD="$SIZETOOL -A -d $SOURCES",
    SIZEPRINTCMD='$SIZETOOL -B -d $SOURCES',

    PROGSUFFIX=".elf"
)

# Allow user to override via pre:script
if env.get("PROGNAME", "program") == "program":
    env.Replace(PROGNAME="firmware")

env.Append(
    BUILDERS=dict(
        ElfToBin=Builder(
            action=env.VerboseAction(" ".join([
                "$OBJCOPY",
                "-O",
                "binary",
                "$SOURCES",
                "$TARGET"
            ]), "Building $TARGET"),
            suffix=".bin"
        ),
        ElfToHex=Builder(
            action=env.VerboseAction(" ".join([
                "$OBJCOPY",
                "-O",
                "ihex",
                "-R",
                ".eeprom",
                "$SOURCES",
                "$TARGET"
            ]), "Building $TARGET"),
            suffix=".hex"
        )
    )
)

if not env.get("PIOFRAMEWORK"):
    env.SConscript("frameworks/_bare.py")

#
# Target: Build executable and linkable firmware
#

target_elf = None
if "nobuild" in COMMAND_LINE_TARGETS:
    target_elf = join("$BUILD_DIR", "${PROGNAME}.elf")
    target_firm = join("$BUILD_DIR", "${PROGNAME}.bin")
else:
    target_elf = env.BuildProgram()
    target_firm = env.ElfToBin(join("$BUILD_DIR", "${PROGNAME}"), target_elf)
    env.Depends(target_firm, "checkprogsize")

AlwaysBuild(env.Alias("nobuild", target_firm))
target_buildprog = env.Alias("buildprog", target_firm, target_firm)

#
# Target: Print binary size
#

target_size = env.Alias(
    "size", target_elf,
    env.VerboseAction("$SIZEPRINTCMD", "Calculating size $SOURCE"))
AlwaysBuild(target_size)

#
# Target: Upload by default .bin file
#

debug_tools = env.BoardConfig().get("debug.tools", {})
upload_protocol = env.subst("$UPLOAD_PROTOCOL") or "picotool"
upload_actions = []
upload_source = target_firm

if upload_protocol == "mbed":
    upload_actions = [
        env.VerboseAction(env.AutodetectUploadPort, "Looking for upload disk..."),
        env.VerboseAction(env.UploadToDisk, "Uploading $SOURCE")
    ]
elif upload_protocol == "picotool":
    env.Replace(
        UPLOADER=join(platform.get_package_dir("tool-rp2040tools") or "", "rp2040load"),
        UPLOADERFLAGS=["-v", "-D"],
        UPLOADCMD="$UPLOADER $UPLOADERFLAGS $SOURCES"
    )

    upload_actions = [
        env.VerboseAction(BeforeUpload, "Looking for upload port..."),
        env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE"),
    ]

    upload_source = target_elf

elif upload_protocol.startswith("jlink"):

    def _jlink_cmd_script(env, source):
        build_dir = env.subst("$BUILD_DIR")
        if not isdir(build_dir):
            makedirs(build_dir)
        script_path = join(build_dir, "upload.jlink")
        commands = [
            "h",
            "loadbin %s, %s" % (source, board.get(
                "upload.offset_address", "0x0")),
            "r",
            "q"
        ]
        with open(script_path, "w") as fp:
            fp.write("\n".join(commands))
        return script_path

    env.Replace(
        __jlink_cmd_script=_jlink_cmd_script,
        UPLOADER="JLink.exe" if system() == "Windows" else "JLinkExe",
        UPLOADERFLAGS=[
            "-device", board.get("debug", {}).get("jlink_device"),
            "-speed", env.GetProjectOption("debug_speed", "4000"),
            "-if", ("jtag" if upload_protocol == "jlink-jtag" else "swd"),
            "-autoconnect", "1",
            "-NoGui", "1"
        ],
        UPLOADCMD='$UPLOADER $UPLOADERFLAGS -CommanderScript "${__jlink_cmd_script(__env__, SOURCE)}"'
    )
    upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]

elif upload_protocol in debug_tools:
    openocd_args = [
        "-d%d" % (2 if int(ARGUMENTS.get("PIOVERBOSE", 0)) else 1)
    ]
    openocd_args.extend(
        debug_tools.get(upload_protocol).get("server").get("arguments", []))
    if env.GetProjectOption("debug_speed"):
        openocd_args.extend(
            ["-c", "adapter speed %s" % env.GetProjectOption("debug_speed")]
        )
    openocd_args.extend([
        "-c", "program {$SOURCE} %s verify reset; shutdown;" %
        board.get("upload.offset_address", "")
    ])
    openocd_args = [
        f.replace("$PACKAGE_DIR", platform.get_package_dir(
            "tool-openocd-raspberrypi") or "")
        for f in openocd_args
    ]
    env.Replace(
        UPLOADER="openocd",
        UPLOADERFLAGS=openocd_args,
        UPLOADCMD="$UPLOADER $UPLOADERFLAGS")
    upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]

# custom upload tool
elif upload_protocol == "custom":
    upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]

if not upload_actions:
    sys.stderr.write("Warning! Unknown upload protocol %s\n" % upload_protocol)

AlwaysBuild(env.Alias("upload", upload_source, upload_actions))

#
# Default targets
#

Default([target_buildprog, target_size])