# 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 importlib.util
import locale
import os
import re
import shlex
import subprocess
import sys
from os.path import isfile, join
from pathlib import Path

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

from platformio.project.helpers import get_project_dir
from platformio.util import get_serial_ports
from platformio.compat import IS_WINDOWS

# Initialize SCons environment and project configuration
env = DefaultEnvironment()
platform = env.PioPlatform()
projectconfig = env.GetProjectConfig()
terminal_cp = locale.getpreferredencoding().lower()
platform_dir = Path(env.PioPlatform().get_dir())
framework_dir = platform.get_package_dir("framework-arduinoespressif32")
core_dir = projectconfig.get("platformio", "core_dir")
build_dir = Path(projectconfig.get("platformio", "build_dir"))

# Configure Python environment through centralized platform management
PYTHON_EXE, esptool_binary_path = platform.setup_python_env(env)

# Load board configuration and determine MCU architecture
board = env.BoardConfig()
board_id = env.subst("$BOARD")
mcu = board.get("build.mcu", "esp32")
is_xtensa = mcu in ("esp32", "esp32s2", "esp32s3")
toolchain_arch = "xtensa-%s" % mcu
filesystem = board.get("build.filesystem", "littlefs")


def load_board_script(env):
    if not board_id:
        return

    script_path = platform_dir / "boards" / f"{board_id}.py"

    if script_path.exists():
        try:
            spec = importlib.util.spec_from_file_location(
                f"board_{board_id}", 
                str(script_path)
            )
            board_module = importlib.util.module_from_spec(spec)
            spec.loader.exec_module(board_module)

            if hasattr(board_module, 'configure_board'):
                board_module.configure_board(env)

        except Exception as e:
            print(f"Error loading board script {board_id}.py: {e}")

def BeforeUpload(target, source, env):
    """
    Prepare the environment before uploading firmware.
    Handles port detection and special upload configurations.
    
    Args:
        target: SCons target
        source: SCons source
        env: SCons environment object
    """
    upload_options = {}
    if "BOARD" in env:
        upload_options = env.BoardConfig().get("upload", {})

    if not env.subst("$UPLOAD_PORT"):
        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))


def _get_board_memory_type(env):
    """
    Determine the memory type configuration for the board.
    
    Args:
        env: SCons environment object
        
    Returns:
        str: The appropriate memory type string based on board configuration
    """
    board_config = env.BoardConfig()
    default_type = "%s_%s" % (
        board_config.get("build.flash_mode", "dio"),
        board_config.get("build.psram_type", "qspi"),
    )

    return board_config.get(
        "build.memory_type",
        board_config.get(
            "build.%s.memory_type"
            % env.subst("$PIOFRAMEWORK").strip().replace(" ", "_"),
            default_type,
        ),
    )


def _normalize_frequency(frequency):
    """
    Convert frequency value to normalized string format (e.g., "40m").
    
    Args:
        frequency: Frequency value to normalize
        
    Returns:
        str: Normalized frequency string with 'm' suffix
    """
    frequency = str(frequency).replace("L", "")
    return str(int(int(frequency) / 1000000)) + "m"


def _get_board_f_flash(env):
    """
    Get the flash frequency for the board.
    
    Args:
        env: SCons environment object
        
    Returns:
        str: Flash frequency string
    """
    frequency = env.subst("$BOARD_F_FLASH")
    return _normalize_frequency(frequency)


def _get_board_f_image(env):
    """
    Get the image frequency for the board, fallback to flash frequency.
    
    Args:
        env: SCons environment object
        
    Returns:
        str: Image frequency string
    """
    board_config = env.BoardConfig()
    if "build.f_image" in board_config:
        return _normalize_frequency(board_config.get("build.f_image"))

    return _get_board_f_flash(env)


def _get_board_f_boot(env):
    """
    Get the boot frequency for the board, fallback to flash frequency.
    
    Args:
        env: SCons environment object
        
    Returns:
        str: Boot frequency string
    """
    board_config = env.BoardConfig()
    if "build.f_boot" in board_config:
        return _normalize_frequency(board_config.get("build.f_boot"))

    return _get_board_f_flash(env)


def _get_board_flash_mode(env):
    """
    Determine the appropriate flash mode for the board.
    Handles special cases for OPI memory types.
    
    Args:
        env: SCons environment object
        
    Returns:
        str: Flash mode string
    """
    if _get_board_memory_type(env) in ("opi_opi", "opi_qspi"):
        return "dout"

    mode = env.subst("$BOARD_FLASH_MODE")
    if mode in ("qio", "qout"):
        return "dio"
    return mode


def _get_board_boot_mode(env):
    """
    Determine the boot mode for the board.
    Handles special cases for OPI memory types.
    
    Args:
        env: SCons environment object
        
    Returns:
        str: Boot mode string
    """
    memory_type = env.BoardConfig().get("build.arduino.memory_type", "")
    build_boot = env.BoardConfig().get("build.boot", "$BOARD_FLASH_MODE")
    if memory_type in ("opi_opi", "opi_qspi"):
        build_boot = "opi"
    return build_boot


def _parse_size(value):
    """
    Parse size values from various formats (int, hex, K/M suffixes).
    
    Args:
        value: Size value to parse
        
    Returns:
        int: Size in bytes as an integer
    """
    if isinstance(value, int):
        return value
    elif value.isdigit():
        return int(value)
    elif value.startswith("0x"):
        return int(value, 16)
    elif value[-1].upper() in ("K", "M"):
        base = 1024 if value[-1].upper() == "K" else 1024 * 1024
        return int(value[:-1]) * base
    return value


def _parse_partitions(env):
    """
    Parse the partition table CSV file and return partition information.
    Also sets the application offset for the environment.
    
    Args:
        env: SCons environment object
        
    Returns:
        list: List of partition dictionaries
    """
    partitions_csv = env.subst("$PARTITIONS_TABLE_CSV")
    if not isfile(partitions_csv):
        sys.stderr.write(
            "Could not find the file %s with partitions table.\n"
            % partitions_csv
        )
        env.Exit(1)
        return

    result = []
    next_offset = 0
    app_offset = 0x10000  # Default address for firmware

    with open(partitions_csv) as fp:
        for line in fp.readlines():
            line = line.strip()
            if not line or line.startswith("#"):
                continue
            tokens = [t.strip() for t in line.split(",")]
            if len(tokens) < 5:
                continue
            bound = 0x10000 if tokens[1] in ("0", "app") else 4
            calculated_offset = (next_offset + bound - 1) & ~(bound - 1)
            partition = {
                "name": tokens[0],
                "type": tokens[1],
                "subtype": tokens[2],
                "offset": tokens[3] or calculated_offset,
                "size": tokens[4],
                "flags": tokens[5] if len(tokens) > 5 else None,
            }
            result.append(partition)
            next_offset = _parse_size(partition["offset"])
            if partition["subtype"] == "ota_0":
                app_offset = next_offset
            next_offset = next_offset + _parse_size(partition["size"])

    # Configure application partition offset
    env.Replace(ESP32_APP_OFFSET=str(hex(app_offset)))
    # Propagate application offset to debug configurations
    env["INTEGRATION_EXTRA_DATA"].update(
        {"application_offset": str(hex(app_offset))}
    )
    return result


def _update_max_upload_size(env):
    """
    Update the maximum upload size based on partition table configuration.
    Prioritizes user-specified partition names.
    
    Args:
        env: SCons environment object
    """
    if not env.get("PARTITIONS_TABLE_CSV"):
        return

    sizes = {
        p["subtype"]: _parse_size(p["size"])
        for p in _parse_partitions(env)
        if p["type"] in ("0", "app")
    }

    partitions = {p["name"]: p for p in _parse_partitions(env)}

    # User-specified partition name has the highest priority
    custom_app_partition_name = board.get("build.app_partition_name", "")
    if custom_app_partition_name:
        selected_partition = partitions.get(custom_app_partition_name, {})
        if selected_partition:
            board.update(
                "upload.maximum_size", _parse_size(selected_partition["size"])
            )
            return
        else:
            print(
                "Warning! Selected partition `%s` is not available in the "
                "partition table! Default partition will be used!"
                % custom_app_partition_name
            )

    for p in partitions.values():
        if p["type"] in ("0", "app") and p["subtype"] in ("ota_0"):
            board.update("upload.maximum_size", _parse_size(p["size"]))
            break


def _to_unix_slashes(path):
    """
    Convert Windows-style backslashes to Unix-style forward slashes.
    
    Args:
        path (str): Path to convert
        
    Returns:
        str: Path with Unix-style slashes
    """
    return path.replace("\\", "/")


def fetch_fs_size(env):
    """
    Extract filesystem size and offset information from partition table.
    Sets FS_START, FS_SIZE, FS_PAGE, and FS_BLOCK environment variables.
    
    Args:
        env: SCons environment object
    """
    fs = None
    for p in _parse_partitions(env):
        if p["type"] == "data" and p["subtype"] in (
            "spiffs",
            "fat",
            "littlefs",
        ):
            fs = p
    if not fs:
        sys.stderr.write(
            "Could not find the any filesystem section in the partitions "
            "table %s\n" % env.subst("$PARTITIONS_TABLE_CSV")
        )
        env.Exit(1)
        return
    
    env["FS_START"] = _parse_size(fs["offset"])
    env["FS_SIZE"] = _parse_size(fs["size"])
    env["FS_PAGE"] = int("0x100", 16)
    env["FS_BLOCK"] = int("0x1000", 16)

    # FFat specific offsets, see:
    # https://github.com/lorol/arduino-esp32fatfs-plugin#notes-for-fatfs
    if filesystem == "fatfs":
        env["FS_START"] += 4096
        env["FS_SIZE"] -= 4096


def __fetch_fs_size(target, source, env):
    """
    Wrapper function for fetch_fs_size to be used as SCons emitter.
    
    Args:
        target: SCons target
        source: SCons source
        env: SCons environment object
        
    Returns:
        tuple: (target, source) tuple
    """
    fetch_fs_size(env)
    return (target, source)


def check_lib_archive_exists():
    """
    Check if lib_archive is set in platformio.ini configuration.
    
    Returns:
        bool: True if found, False otherwise
    """
    for section in projectconfig.sections():
        if "lib_archive" in projectconfig.options(section):
            return True
    return False


def switch_off_ldf():
    """
    Disables LDF (Library Dependency Finder) for uploadfs, uploadfsota, and buildfs targets.

    This optimization prevents unnecessary library dependency scanning and compilation
    when only filesystem operations are performed.
    """
    fs_targets = {"uploadfs", "uploadfsota", "buildfs", "erase"}
    if fs_targets & set(COMMAND_LINE_TARGETS):
        # Disable LDF by modifying project configuration directly
        env_section = "env:" + env["PIOENV"]
        if not projectconfig.has_section(env_section):
            projectconfig.add_section(env_section)
        projectconfig.set(env_section, "lib_ldf_mode", "off")


# Board specific script
load_board_script(env)

# Set toolchain architecture for RISC-V based ESP32 variants
if not is_xtensa:
    toolchain_arch = "riscv32-esp"

# Ensure integration extra data structure exists
if "INTEGRATION_EXTRA_DATA" not in env:
    env["INTEGRATION_EXTRA_DATA"] = {}

# Take care of possible whitespaces in path
uploader_path = (
    f'"{esptool_binary_path}"' 
    if ' ' in esptool_binary_path 
    else esptool_binary_path
)
# Configure SCons build tools and compiler settings
env.Replace(
    __get_board_boot_mode=_get_board_boot_mode,
    __get_board_f_flash=_get_board_f_flash,
    __get_board_f_image=_get_board_f_image,
    __get_board_f_boot=_get_board_f_boot,
    __get_board_flash_mode=_get_board_flash_mode,
    __get_board_memory_type=_get_board_memory_type,
    AR="%s-elf-gcc-ar" % toolchain_arch,
    AS="%s-elf-as" % toolchain_arch,
    CC="%s-elf-gcc" % toolchain_arch,
    CXX="%s-elf-g++" % toolchain_arch,
    GDB=join(
        platform.get_package_dir(
            "tool-riscv32-esp-elf-gdb"
            if not is_xtensa
            else "tool-xtensa-esp-elf-gdb"
        )
        or "",
        "bin",
        "%s-elf-gdb" % toolchain_arch,
    ),
    OBJCOPY=uploader_path,
    RANLIB="%s-elf-gcc-ranlib" % toolchain_arch,
    SIZETOOL="%s-elf-size" % toolchain_arch,
    ARFLAGS=["rc"],
    SIZEPROGREGEXP=r"^(?:\.iram0\.text|\.iram0\.vectors|\.dram0\.data|"
    r"\.flash\.text|\.flash\.rodata|)\s+([0-9]+).*",
    SIZEDATAREGEXP=r"^(?:\.dram0\.data|\.dram0\.bss|\.noinit)\s+([0-9]+).*",
    SIZECHECKCMD="$SIZETOOL -A -d $SOURCES",
    SIZEPRINTCMD="$SIZETOOL -B -d $SOURCES",
    ERASEFLAGS=["--chip", mcu, "--port", '"$UPLOAD_PORT"'],
    ERASETOOL=uploader_path,
    ERASECMD='$ERASETOOL $ERASEFLAGS erase-flash',
    MKFSTOOL="mk%s" % filesystem
    + (
        (
            "_${PIOPLATFORM}_"
            + (
                "espidf"
                if "espidf" in env.subst("$PIOFRAMEWORK")
                else "${PIOFRAMEWORK}"
            )
        )
        if filesystem == "spiffs"
        else ""
    ),
    # Legacy `ESP32_SPIFFS_IMAGE_NAME` is used as the second fallback value
    # for backward compatibility

    ESP32_FS_IMAGE_NAME=env.get(
        "ESP32_FS_IMAGE_NAME",
        env.get("ESP32_SPIFFS_IMAGE_NAME", filesystem),
    ),
    ESP32_APP_OFFSET=env.get("INTEGRATION_EXTRA_DATA").get(
        "application_offset"
    ),
    ARDUINO_LIB_COMPILE_FLAG="Inactive",
    PROGSUFFIX=".elf",
)

# Check if lib_archive is set in platformio.ini and set it to False
# if not found. This makes weak defs in framework and libs possible.
if not check_lib_archive_exists():
    env_section = "env:" + env["PIOENV"]
    projectconfig.set(env_section, "lib_archive", "False")

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

# Configure build actions and builders
env.Append(
    BUILDERS=dict(
        ElfToBin=Builder(
            action=env.VerboseAction(
                " ".join(
                    [
                        "$ERASETOOL",
                        "--chip",
                        mcu,
                        "elf2image",
                        "--flash-mode",
                        "${__get_board_flash_mode(__env__)}",
                        "--flash-freq",
                        "${__get_board_f_image(__env__)}",
                        "--flash-size",
                        board.get("upload.flash_size", "4MB"),
                        "-o",
                        "\"$TARGET\"",
                        "\"$SOURCES\"",
                    ]
                ),
                "Building $TARGET",
            ),
            suffix=".bin",
        ),
        DataToBin=Builder(
            action=env.VerboseAction(
                " ".join(
                    ['"$MKFSTOOL"', "-c", "$SOURCES", "-s", "$FS_SIZE"]
                    + (
                        ["-p", "$FS_PAGE", "-b", "$FS_BLOCK"]
                        if filesystem in ("littlefs", "spiffs")
                        else []
                    )
                    + ["$TARGET"]
                ),
                "Building FS image from '$SOURCES' directory to $TARGET",
            ),
            emitter=__fetch_fs_size,
            source_factory=env.Dir,
            suffix=".bin",
        ),
    )
)

# Load framework-specific configuration
if not env.get("PIOFRAMEWORK"):
    env.SConscript("frameworks/_bare.py", exports="env")


# Disable LDF for filesystem operations
switch_off_ldf()


def firmware_metrics(target, source, env):
    """
    Custom target to run esp-idf-size with support for command line parameters.
    Usage: pio run -t metrics -- [esp-idf-size arguments]
    
    Args:
        target: SCons target
        source: SCons source
        env: SCons environment object
    """
    if terminal_cp not in ["utf-8", "cp65001"]:
        print("Firmware metrics can not be shown. Set the terminal codepage to \"utf-8\" or \"cp65001\" on Windows.")
        return

    map_file = str(Path(env.subst("$BUILD_DIR")) / (env.subst("$PROGNAME") + ".map"))
    if not Path(map_file).is_file():
        # map file can be in project dir
        map_file = str(Path(get_project_dir()) / (env.subst("$PROGNAME") + ".map"))

    if not Path(map_file).is_file():
        print(f"Error: Map file not found: {map_file}")
        print("Make sure the project is built first with 'pio run'")
        return

    try:        
        cmd = [PYTHON_EXE, "-m", "esp_idf_size"]
        
        # Parameters from platformio.ini
        extra_args = env.GetProjectOption("custom_esp_idf_size_args", "")
        if extra_args:
            cmd.extend(shlex.split(extra_args))
        
        # Command Line Parameter, after --
        cli_args = []
        if "--" in sys.argv:
            dash_index = sys.argv.index("--")
            if dash_index + 1 < len(sys.argv):
                cli_args = sys.argv[dash_index + 1:]

        # Add CLI arguments before the map file
        if cli_args:
            cmd.extend(cli_args)

        # Map-file as last argument
        cmd.append(map_file)
        
        # Debug-Info if wanted
        if env.GetProjectOption("custom_esp_idf_size_verbose", False):
            print(f"Running command: {' '.join(cmd)}")
        
        # Execute esp-idf-size with current environment
        result = subprocess.run(cmd, check=False, capture_output=False, env=os.environ)
        
        if result.returncode != 0:
            print(f"Warning: esp-idf-size exited with code {result.returncode}")

    except FileNotFoundError:
        print("Error: Python executable not found.")
        print("Check your Python installation.")
    except Exception as e:
        print(f"Error: Failed to run firmware metrics: {e}")
        print(f'Make sure esp-idf-size is installed: uv pip install --python "{PYTHON_EXE}" esp-idf-size')


def coredump_analysis(target, source, env):
    """
    Custom target to run esp-coredump with support for command line parameters.
    Usage: pio run -t coredump -- [esp-coredump arguments]
    
    Args:
        target: SCons target
        source: SCons source
        env: SCons environment object
    """
    if terminal_cp != "utf-8":
        print("Coredump analysis can not be shown. Set the terminal codepage to \"utf-8\"")
        return

    elf_file = str(Path(env.subst("$BUILD_DIR")) / (env.subst("$PROGNAME") + ".elf"))
    if not Path(elf_file).is_file():
        # elf file can be in project dir
        elf_file = str(Path(get_project_dir()) / (env.subst("$PROGNAME") + ".elf"))

    if not Path(elf_file).is_file():
        print(f"Error: ELF file not found: {elf_file}")
        print("Make sure the project is built first with 'pio run'")
        return

    try:        
        cmd = [PYTHON_EXE, "-m", "esp_coredump"]
        
        # Command Line Parameter, after --
        cli_args = []
        if "--" in sys.argv:
            dash_index = sys.argv.index("--")
            if dash_index + 1 < len(sys.argv):
                cli_args = sys.argv[dash_index + 1:]

        # Add CLI arguments or use defaults
        if cli_args:
            cmd.extend(cli_args)
            # ELF file should be at the end as positional argument
            if not any(arg.endswith('.elf') for arg in cli_args):
                cmd.append(elf_file)
        else:
            # Default arguments if none provided
            # Parameters from platformio.ini
            extra_args = env.GetProjectOption("custom_esp_coredump_args", "")
            if extra_args:
                args = shlex.split(extra_args)
                cmd.extend(args)
                # Ensure ELF is last positional if not present
                if not any(a.endswith(".elf") for a in args):
                    cmd.append(elf_file)
            else:
                # Prefer an explicit core file if configured or present; else read from flash
                core_file = env.GetProjectOption("custom_esp_coredump_corefile", "")
                if not core_file:
                    for name in ("coredump.bin", "coredump.b64"):
                        cand = Path(get_project_dir()) / name
                        if cand.is_file():
                            core_file = str(cand)
                            break

                # Global options
                cmd.extend(["--chip", mcu])
                upload_port = env.subst("$UPLOAD_PORT")
                if upload_port:
                    cmd.extend(["--port", upload_port])

                # Subcommand and arguments
                cmd.append("info_corefile")
                if core_file:
                    cmd.extend(["--core", core_file])
                    if core_file.lower().endswith(".b64"):
                        cmd.extend(["--core-format", "b64"])
                # ELF is the required positional
                cmd.append(elf_file)

        # Set up ESP-IDF environment variables and ensure required packages are installed
        coredump_env = os.environ.copy()
        
        # Check if ESP-IDF packages are available, install if missing
        _framework_pkg_dir = platform.get_package_dir("framework-espidf")
        _rom_elfs_dir = platform.get_package_dir("tool-esp-rom-elfs")
        
        # Install framework-espidf if not available
        if not _framework_pkg_dir or not os.path.isdir(_framework_pkg_dir):
            print("ESP-IDF framework not found, installing...")
            try:
                platform.install_package("framework-espidf")
                _framework_pkg_dir = platform.get_package_dir("framework-espidf")
            except Exception as e:
                print(f"Warning: Failed to install framework-espidf: {e}")
        
        # Install tool-esp-rom-elfs if not available
        if not _rom_elfs_dir or not os.path.isdir(_rom_elfs_dir):
            print("ESP ROM ELFs tool not found, installing...")
            try:
                platform.install_package("tool-esp-rom-elfs")
                _rom_elfs_dir = platform.get_package_dir("tool-esp-rom-elfs")
            except Exception as e:
                print(f"Warning: Failed to install tool-esp-rom-elfs: {e}")
        
        # Set environment variables if packages are available
        if _framework_pkg_dir and os.path.isdir(_framework_pkg_dir):
            coredump_env['IDF_PATH'] = str(Path(_framework_pkg_dir).resolve())
            if _rom_elfs_dir and os.path.isdir(_rom_elfs_dir):
                coredump_env['ESP_ROM_ELF_DIR'] = str(Path(_rom_elfs_dir).resolve())

        # Debug-Info if wanted
        if env.GetProjectOption("custom_esp_coredump_verbose", False):
            print(f"Running command: {' '.join(cmd)}")
            if 'IDF_PATH' in coredump_env:
                print(f"IDF_PATH: {coredump_env['IDF_PATH']}")
                print(f"ESP_ROM_ELF_DIR: {coredump_env.get('ESP_ROM_ELF_DIR', 'Not set')}")
        
        # Execute esp-coredump with ESP-IDF environment
        result = subprocess.run(cmd, check=False, capture_output=False, env=coredump_env)
        
        if result.returncode != 0:
            print(f"Warning: esp-coredump exited with code {result.returncode}")

    except FileNotFoundError:
        print("Error: Python executable not found.")
        print("Check your Python installation.")
    except Exception as e:
        print(f"Error: Failed to run coredump analysis: {e}")
        print(f'Make sure esp-coredump is installed: uv pip install --python "{PYTHON_EXE}" esp-coredump')

#
# Target: Build executable and linkable firmware or FS image
#

target_elf = None
if "nobuild" in COMMAND_LINE_TARGETS:
    target_elf = str(Path("$BUILD_DIR") / "${PROGNAME}.elf")
    if set(["uploadfs", "uploadfsota"]) & set(COMMAND_LINE_TARGETS):
        fetch_fs_size(env)
        target_firm = str(Path("$BUILD_DIR") / "${ESP32_FS_IMAGE_NAME}.bin")
    else:
        target_firm = str(Path("$BUILD_DIR") / "${PROGNAME}.bin")
else:
    target_elf = env.BuildProgram()
    silent_action = env.Action(firmware_metrics)
    # Hack to silence scons command output
    silent_action.strfunction = lambda target, source, env: ""
    env.AddPostAction(target_elf, silent_action)
    if set(["buildfs", "uploadfs", "uploadfsota"]) & set(COMMAND_LINE_TARGETS):
        target_firm = env.DataToBin(
            str(Path("$BUILD_DIR") / "${ESP32_FS_IMAGE_NAME}"), "$PROJECT_DATA_DIR"
        )
        env.NoCache(target_firm)
        AlwaysBuild(target_firm)
    else:
        target_firm = env.ElfToBin(str(Path("$BUILD_DIR") / "${PROGNAME}"), target_elf)
        env.Depends(target_firm, "checkprogsize")

# Configure platform targets
env.AddPlatformTarget(
    "buildfs", target_firm, target_firm, "Build Filesystem Image"
)
AlwaysBuild(env.Alias("nobuild", target_firm))
target_buildprog = env.Alias("buildprog", target_firm, target_firm)

# Update max upload size based on CSV file
if env.get("PIOMAINPROG"):
    env.AddPreAction(
        "checkprogsize",
        env.VerboseAction(
            lambda source, target, env: _update_max_upload_size(env),
            "Retrieving maximum program size $SOURCES",
        ),
    )

# Target: Print binary size
target_size = env.AddPlatformTarget(
    "size",
    target_elf,
    env.VerboseAction("$SIZEPRINTCMD", "Calculating size $SOURCE"),
    "Program Size",
    "Calculate program size",
)

# Target: Upload firmware or FS image
upload_protocol = env.subst("$UPLOAD_PROTOCOL") or "esptool"
debug_tools = board.get("debug.tools", {})
upload_actions = []

# Compatibility with old OTA configurations
if upload_protocol != "espota" and re.match(
    r"\"?((([0-9]{1,3}\.){3}[0-9]{1,3})|[^\\/]+\.local)\"?$",
    env.get("UPLOAD_PORT", ""),
):
    upload_protocol = "espota"
    sys.stderr.write(
        "Warning! We have just detected `upload_port` as IP address or host "
        "name of ESP device. `upload_protocol` is switched to `espota`.\n"
        "Please specify `upload_protocol = espota` in `platformio.ini` "
        "project configuration file.\n"
    )

# Configure upload protocol: ESP OTA
if upload_protocol == "espota":
    if not env.subst("$UPLOAD_PORT"):
        sys.stderr.write(
            "Error: Please specify IP address or host name of ESP device "
            "using `upload_port` for build environment or use "
            "global `--upload-port` option.\n"
            "See https://docs.platformio.org/page/platforms/"
            "espressif32.html#over-the-air-ota-update\n"
        )
    env.Replace(
        UPLOADER=str(Path(framework_dir).resolve() / "tools" / "espota.py"),
        UPLOADERFLAGS=["--debug", "--progress", "-i", "$UPLOAD_PORT"],
        UPLOADCMD=f'"{PYTHON_EXE}" "$UPLOADER" $UPLOADERFLAGS -f $SOURCE',
    )
    if set(["uploadfs", "uploadfsota"]) & set(COMMAND_LINE_TARGETS):
        env.Append(UPLOADERFLAGS=["--spiffs"])
    upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]

# Configure upload protocol: esptool
elif upload_protocol == "esptool":
    env.Replace(
        UPLOADER=uploader_path,
        UPLOADERFLAGS=[
            "--chip",
            mcu,
            "--port",
            '"$UPLOAD_PORT"',
            "--baud",
            "$UPLOAD_SPEED",
            "--before",
            board.get("upload.before_reset", "default-reset"),
            "--after",
            board.get("upload.after_reset", "hard-reset"),
            "write-flash",
            "-z",
            "--flash-mode",
            "${__get_board_flash_mode(__env__)}",
            "--flash-freq",
            "${__get_board_f_image(__env__)}",
            "--flash-size",
            "detect",
        ],
        UPLOADCMD='$UPLOADER $UPLOADERFLAGS $ESP32_APP_OFFSET $SOURCE'
    )
    for image in env.get("FLASH_EXTRA_IMAGES", []):
        env.Append(UPLOADERFLAGS=[image[0], env.subst(image[1])])

    if "uploadfs" in COMMAND_LINE_TARGETS:
        env.Replace(
            UPLOADERFLAGS=[
                "--chip",
                mcu,
                "--port",
                '"$UPLOAD_PORT"',
                "--baud",
                "$UPLOAD_SPEED",
                "--before",
                board.get("upload.before_reset", "default-reset"),
                "--after",
                board.get("upload.after_reset", "hard-reset"),
                "write-flash",
                "-z",
                "--flash-mode",
                "${__get_board_flash_mode(__env__)}",
                "--flash-freq",
                "${__get_board_f_image(__env__)}",
                "--flash-size",
                "detect",
                "$FS_START",
            ],
            UPLOADCMD='$UPLOADER $UPLOADERFLAGS $SOURCE',
        )

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

# Configure upload protocol: DFU
elif upload_protocol == "dfu":
    hwids = board.get("build.hwids", [["0x2341", "0x0070"]])
    vid = hwids[0][0]
    pid = hwids[0][1]

    upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]

    env.Replace(
        UPLOADER=str(
            Path(platform.get_package_dir("tool-dfuutil-arduino")).resolve() / "dfu-util"
        ),
        UPLOADERFLAGS=[
            "-d",
            ",".join(["%s:%s" % (hwid[0], hwid[1]) for hwid in hwids]),
            "-Q",
            "-D",
        ],
        UPLOADCMD='"$UPLOADER" $UPLOADERFLAGS "$SOURCE"',
    )

# Configure upload protocol: Debug tools (OpenOCD)
elif upload_protocol in debug_tools:
    _parse_partitions(env)
    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", [])
    )
    openocd_args.extend(
        [
            "-c",
            "adapter speed %s" % env.GetProjectOption("debug_speed", "5000"),
            "-c",
            "program_esp {{$SOURCE}} %s verify"
            % (
                "$FS_START"
                if "uploadfs" in COMMAND_LINE_TARGETS
                else env.get("INTEGRATION_EXTRA_DATA").get("application_offset")
            ),
        ]
    )
    if "uploadfs" not in COMMAND_LINE_TARGETS:
        for image in env.get("FLASH_EXTRA_IMAGES", []):
            openocd_args.extend(
                [
                    "-c",
                    "program_esp {{%s}} %s verify"
                    % (_to_unix_slashes(image[1]), image[0]),
                ]
            )
    openocd_args.extend(["-c", "reset run; shutdown"])
    openocd_args = [
        f.replace(
            "$PACKAGE_DIR",
            _to_unix_slashes(
                platform.get_package_dir("tool-openocd-esp32") or ""
            ),
        )
        for f in openocd_args
    ]
    env.Replace(
        UPLOADER="openocd",
        UPLOADERFLAGS=openocd_args,
        UPLOADCMD="$UPLOADER $UPLOADERFLAGS",
    )
    upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]

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

else:
    sys.stderr.write("Warning! Unknown upload protocol %s\n" % upload_protocol)

# Register upload targets
env.AddPlatformTarget("upload", target_firm, upload_actions, "Upload")
env.AddPlatformTarget(
    "uploadfs", target_firm, upload_actions, "Upload Filesystem Image"
)
env.AddPlatformTarget(
    "uploadfsota",
    target_firm,
    upload_actions,
    "Upload Filesystem Image OTA",
)

# Target: Erase Flash and Upload
env.AddPlatformTarget(
    "erase_upload",
    target_firm,
    [
        env.VerboseAction(BeforeUpload, "Looking for upload port..."),
        env.VerboseAction("$ERASECMD", "Erasing..."),
        env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE"),
    ],
    "Erase Flash and Upload",
)

# Target: Erase Flash
env.AddPlatformTarget(
    "erase",
    None,
    [
        env.VerboseAction(BeforeUpload, "Looking for upload port..."),
        env.VerboseAction("$ERASECMD", "Erasing..."),
    ],
    "Erase Flash",
)

# Register Custom Target for firmware metrics
env.AddCustomTarget(
    name="metrics",
    dependencies="$BUILD_DIR/${PROGNAME}.elf",
    actions=firmware_metrics,
    title="Firmware Size Metrics",
    description="Analyze firmware size using esp-idf-size "
    "(supports CLI args after --)",
    always_build=True,
)

# Additional Target without Build-Dependency when already compiled
env.AddCustomTarget(
    name="metrics-only",
    dependencies=None,
    actions=firmware_metrics,
    title="Firmware Size Metrics (No Build)",
    description="Analyze firmware size without building first",
    always_build=True,
)

# Register Custom Target for coredump analysis
env.AddCustomTarget(
    name="coredump",
    dependencies="$BUILD_DIR/${PROGNAME}.elf",
    actions=coredump_analysis,
    title="Coredump Analysis",
    description="Analyze coredumps using esp-coredump "
    "(supports CLI args after --)",
    always_build=True,
)

# Additional Target without Build-Dependency when already compiled
env.AddCustomTarget(
    name="coredump-only",
    dependencies=None,
    actions=coredump_analysis,
    title="Coredump Analysis (No Build)",
    description="Analyze coredumps without building first",
    always_build=True,
)

# Override memory inspection behavior
env.SConscript("sizedata.py", exports="env")

# Set default targets
Default([target_buildprog, target_size])