# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/components.gni")
import("//src/sys/core/build/core_shard.gni")

declare_args() {
  # DO NOT SET THIS IN A PRODUCT DEFINITION!!  FOR NETSTACK DEVELOPER USE ONLY
  # TODO(https://fxbug.dev/85450) - Convert this to a platform configuration
  # option in Product Assembly
  use_netstack3 = false
}

fuchsia_component("component") {
  component_name = "network"
  manifest = "meta/network-default.cml"
}

# TODO(https://fxbug.dev/85450): use subassembly-based product assembly to
# assemble the network realm from shards depending on the product, rather than
# creating two separate component manifests and relying on include shards to
# reduce duplication.
fuchsia_component("component-basic") {
  component_name = "network"
  manifest = "meta/network-basic.cml"
}

# TODO(https://fxbug.dev/85450): Convert this to a platform configuration
# option in Product Assembly
group("network") {
  if (use_netstack3) {
    public_deps = [ ":network_netstack3" ]
  } else {
    public_deps = [ ":network_netstack2" ]
  }
}

# Defines a Fuchsia package with networking components.
#
# Parameters
#
#   netstack_component:
#     Required: Name of the Fuchsia component target that provides the netstack.
#
#   basic:
#     Required: Use only the basic versions of components.
#
#   visibility:
#     Optional: Has the standard GN meaning.
template("network_package") {
  fuchsia_package(target_name) {
    forward_variables_from(invoker, [ "visibility" ])
    package_name = "network"
    deps = [
      "dhcp:component",
      "dhcpv6/client:component",
      "dns:component",
      "http-client:component",
      "reachability:component",
      invoker.netstack_component,
    ]
    if (invoker.basic) {
      deps += [
        ":component-basic",
        "netcfg:component-basic",
      ]
    } else {
      deps += [
        ":component",
        "netcfg:component-advanced",
      ]
    }
  }
}

network_package("network_netstack2") {
  netstack_component = "netstack:component"
  basic = false

  # Other targets should depend on this via the :network group.
  visibility = [ ":network" ]
}

network_package("network_netstack3") {
  netstack_component = "netstack3:component-dropin"
  basic = false

  # Other targets should depend on this via the :network group.
  visibility = [ ":network" ]
}

network_package("network-basic") {
  netstack_component = "netstack:component"
  basic = true
}

# TODO(https://fxbug.dev/85450): use subassembly-based product assembly to
# create this variant.
network_package("network-with-tracing") {
  netstack_component = "netstack:component-with-tracing"
  basic = false
}

core_shard("virtualization-core-shard") {
  shard_file = "meta/virtualization.core_shard.cml"
}

# TODO(https://fxbug.dev/85821): Remove once out-of-tree users no longer
# reference v1 components.
fuchsia_package("network-legacy-deprecated") {
  deps = [
    "dns:component-legacy",
    "netstack:component-legacy",
    "netstack:component-with-fast-udp-legacy",
    "netstack3:component-legacy",
  ]
}

group("drivers") {
  deps = [ "drivers/network-device" ]
}

group("tests") {
  testonly = true
  deps = [
    "dhcp:tests",
    "dhcpv6:tests",
    "dns:tests",
    "drivers:tests",
    "http-client:tests",
    "lib:tests",
    "mdns:tests",
    "net-cli:tests",
    "netcfg:tests",

    # Ensure this target doesn't rot. This dependency can be removed if the
    # target becomes load bearing elsewhere.
    "netstack:component-with-tracing",
    "netstack:tests",
    "netstack3:tests",
    "reachability:tests",
    "testing:tests",
    "tests",
    "tools:tests",
    "tun:tests",
  ]
}