# Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

load("//bazel_tools:scala.bzl", "da_scala_binary", "da_scala_library")

da_scala_binary(
    name = "compiler_plugin",
    srcs = glob(["*.scala"]),
    main_class = "protoc.plugins.scalapb.ScalaPbCompilerPlugin",
    visibility = ["//visibility:public"],
    runtime_deps = [
        "@com_github_scalapb_scalapb//:scala-library",
    ],
    deps = [
        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
        "//3rdparty/jvm/com/thesamet/scalapb:compilerplugin",
        "//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge",
    ],
)

# From https://github.com/stackb/rules_proto/blob/3f890f5d6774bd74df28e89b20f34155dfe77732/scala/BUILD.bazel#L78-L97
# Curiously this didn't work
#
# genrule(
#     name = "gen_protoc_gen_scala",
#     srcs = ["compiler_plugin_deploy.jar", "@local_jdk//:bin/java"],
#     outs = ["protoc-gen-scala.sh"],
#     cmd = """
#     echo '$(location @local_jdk//:bin/java) -jar $(location protoc_gen_deploy.jar) $$@' > $@
#     """,
#     executable = True,
# )

# ======================================================================
#
# Unable to get either bazel or maybe protoc to call a plugin whose
# implementation was fronted by a shell script (from a genrule).  So, the only
# way this seemed to work was compile an executable that calls 'java -jar
# protoc_gen_scala_deploy.jar'.  Either figure out how to do this in java
# directly or write the wrapper in C++ ot remove the go dependency here.
#
load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")

go_library(
    name = "go_default_library",
    srcs = [
        "protoc-gen-scalapb.go",
    ],
    importpath = "github.com/digital-asset/daml/scala/protoc-gen-scalapb",
    visibility = ["//visibility:public"],
)

go_binary(
    name = "protoc-gen-scalapb",
    data = [
        ":compiler_plugin_deploy.jar",
        "@bazel_tools//tools/jdk:jre",
    ],
    embed = [":go_default_library"],
    visibility = ["//visibility:public"],
)