declare_args() {
  is_debug = false
}

# Platform detection
if (target_os == "") {
  target_os = host_os
}
if (current_os == "") {
  current_os = target_os
}

is_android = current_os == "android"
is_ios = current_os == "ios"
is_linux = current_os == "linux"
is_mac = current_os == "mac"
is_win = current_os == "win"

is_apple = is_mac || is_ios
is_desktop = is_mac || is_linux || is_win
is_mobile = is_android || is_ios
is_unix = is_android || is_linux

# Optional build components
have_vulkan = false

if (target_cpu == "") {
  if (is_mobile) {
    target_cpu = "arm64"
  } else {
    target_cpu = host_cpu
  }
}
if (target_cpu == "x86_64") {
  target_cpu = "x64"
}
if (current_cpu == "") {
  current_cpu = target_cpu
}

# Set defaults
_default_config = [
  "//build:default",
  "//build:warnings",
]

if (is_debug) {
  _default_config += [ "//build:debug" ]
} else {
  _default_config += [ "//build:release" ]
}

set_defaults("executable") {
  configs = [ "//build:executable" ] + _default_config
}
set_defaults("static_library") {
  configs = _default_config
}
set_defaults("shared_library") {
  configs = _default_config
}
set_defaults("source_set") {
  configs = _default_config
}

if (is_win) {
  set_default_toolchain("//build/toolchain/msvc")
} else {
  # Clang behaves like GCC in most cases.
  set_default_toolchain("//build/toolchain/gcc")
}