load("@rules_proto//proto:defs.bzl", "proto_library")
load("@rules_rust//rust:defs.bzl", "rust_binary", "rust_library", "rust_test")

# Prost generator binary for converting proto files to Rust code
rust_binary(
    name = "prost_generator",
    srcs = ["prost_generator.rs"],
    edition = "2021",
    visibility = ["//visibility:public"],
    deps = [
        "@crates//:prost",
        "@crates//:prost-build",
        "@crates//:serde",
        "@crates//:tempfile",
    ],
)

# Generate Rust code for databuild proto
genrule(
    name = "generate_databuild_rust",
    srcs = [
        "databuild.proto",
    ],
    outs = ["databuild.rs"],
    cmd = "PROTOC=$(location @com_google_protobuf//:protoc) $(location :prost_generator) $(location databuild.proto) /dev/null $@",
    tools = [
        "//databuild:prost_generator",
        "@com_google_protobuf//:protoc",
    ],
    visibility = ["//visibility:public"],
)

# DataBuild library using generated prost code
rust_library(
    name = "databuild",
    srcs = [
        "lib.rs",
        "event_log/mod.rs",
        "event_log/stdout.rs",
        "event_log/sqlite.rs",
        "event_log/postgres.rs",
        ":generate_databuild_rust",
    ],
    edition = "2021",
    visibility = ["//visibility:public"],
    deps = [
        "@crates//:prost",
        "@crates//:prost-types",
        "@crates//:rusqlite",
        "@crates//:serde",
        "@crates//:serde_json",
        "@crates//:tokio",
        "@crates//:uuid",
    ],
    proc_macro_deps = [
        "@crates//:async-trait",
    ],
)

# Legacy filegroup for backwards compatibility
filegroup(
    name = "proto",
    srcs = ["databuild.proto"],
    visibility = ["//visibility:public"],
)