import("//third_party/protobuf/proto_library.gni")
import("//v8/gni/v8.gni")
import("//v8/snapshot_toolchain.gni")

executable("deno") {
  sources = [
    "main.cc",
  ]
  deps = [
    ":libdeno",
  ]
}

executable("deno_test") {
  testonly = true
  sources = [
    "deno_test.cc",
  ]
  deps = [
    ":libdeno",
    "//testing/gtest:gtest",
  ]
}

component("libdeno") {
  deps = [
    ":deno_snapshot",
  ]
}

source_set("deno_nosnapshot") {
  sources = [
    "deno.cc",
    "deno_internal.h",
    "include/deno.h",
  ]
  include_dirs = [ "include/" ]
  deps = [
    ":msg_proto",
    "v8:v8",
    "v8:v8_libbase",
    "v8:v8_libplatform",
    "v8:v8_libsampler",
  ]
}

source_set("deno_snapshot") {
  sources = [
    "from_snapshot.cc",
  ]
  deps = [
    ":create_snapshot_deno",
    ":deno_nosnapshot",
  ]
  include_dirs = [ target_gen_dir ]
}

executable("snapshot_creator") {
  sources = [
    "snapshot_creator.cc",
  ]
  deps = [
    ":deno_nosnapshot",
  ]
}

proto_library("msg_proto") {
  sources = [
    "msg.proto",
  ]
}

action("run_parcel") {
  sources = [
    "js/main.ts",
  ]
  outputs = [
    "$target_gen_dir/main.js",
    "$target_gen_dir/main.map",
  ]

  # Our script imports this Python file so we want to rebuild if it changes.
  # inputs = [ "helper_library.py" ]

  # Note that we have to manually pass the sources to our script if the
  # script needs them as inputs.
  script = "js/run_node.py"
  root = root_build_dir + "/../../js"
  args = [
           "./node_modules/.bin/parcel",
           "build",
           "--log-level=1",
           "--no-minify",
           "--out-dir=" + rebase_path(target_gen_dir, root),
         ] + rebase_path(sources, root)
}

# Template to generate different V8 snapshots based on different runtime flags.
# Can be invoked with run_mksnapshot(<name>). The target will resolve to
# run_mksnapshot_<name>. If <name> is "default", no file suffixes will be used.
# Otherwise files are suffixed, e.g. embedded_<name>.cc and
# snapshot_blob_<name>.bin.
#
# The template exposes the variables:
#   args: additional flags for mksnapshots
#   embedded_suffix: a camel case suffix for method names in the embedded
#       snapshot.
template("create_snapshot") {
  name = target_name
  suffix = "_$name"
  action("create_snapshot_" + name) {
    visibility = [ ":*" ]  # Only targets in this file can depend on this.
    deps = [ ":snapshot_creator" ] + invoker.deps
    script = "v8/tools/run.py"
    data = []
    exe = rebase_path(get_label_info(":snapshot_creator", "root_out_dir") +
                      "/snapshot_creator")
    natives_in_bin = "$root_out_dir/natives_blob.bin"
    snapshot_in_bin = "$root_out_dir/snapshot_blob.bin"
    natives_out_cc = "$target_gen_dir/natives${suffix}.cc"
    snapshot_out_cc = "$target_gen_dir/snapshot${suffix}.cc"
    sources = [
      invoker.js,
    ]
    outputs = [
      natives_out_cc,
      snapshot_out_cc,
    ]
    args = [
      exe,
      rebase_path(invoker.js, root_build_dir),
      rebase_path(natives_in_bin, root_build_dir),
      rebase_path(snapshot_in_bin, root_build_dir),
      rebase_path(natives_out_cc, root_build_dir),
      rebase_path(snapshot_out_cc, root_build_dir),
    ]
    data = [
      invoker.js,
    ]
  }
}

# Generates $target_gen_dir/snapshot_bundle.cc
create_snapshot("deno") {
  js = "$target_gen_dir/main.js"
  deps = [
    ":run_parcel",
  ]
}