// Copyright (C) 2024 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// This file contains the proto libraries, python script and genrule required for FHIR structural
// validation of PHR medical data.
// The python script generate_fhir_spec.py reads in the FHIR spec json files published by FHIR
// (located in the android external folder). The official spec is then used to generate a fhirspec
// proto message that is written to "fhirspec-r4.binarypb". This file is then added to
// java_resources of the HC service to be used for the validation of incoming FHIR resources,
// specifically in the FhirSpecProvider class.

package {
    default_applicable_licenses: ["Android-Apache-2.0"],
    default_team: "trendy_team_android_health",
}

filegroup {
    name: "fhirspec-proto",
    srcs: [
        "*.proto",
    ],
}

// Generate the java fhirspec proto library, used for capturing FHIR spec details for validation
java_library {
    name: "fhirspec-java-proto-lite",
    sdk_version: "core_current",
    proto: {
        type: "lite",
        include_dirs: [
            "external/protobuf/src",
            "external/protobuf/java",
        ],
    },
    srcs: [
        ":fhirspec-proto",
        ":libprotobuf-internal-protos",
    ],
    static_libs: ["libprotobuf-java-lite"],
    apex_available: ["com.android.healthfitness"],
}

// Generate the python fhirspec proto library, used for capturing FHIR spec details for validation
python_library_host {
    name: "fhirspec-py-proto",
    srcs: [
        "fhirspec.proto",
    ],
    proto: {
        canonical_path_from_root: false,
    },
}

python_library_host {
    name: "fhir-spec-extractor",
    srcs: [
        "fhir_spec_extractor.py",
    ],
    libs: [
        "fhirspec-py-proto",
    ],
}

python_test_host {
    name: "fhir-spec-extractor-test",
    main: "fhir_spec_extractor_test.py",
    srcs: [
        "fhir_spec_extractor_test.py",
    ],
    libs: [
        "fhirspec-py-proto",
        "fhir-spec-extractor",
    ],
    test_options: {
        unit_test: true,
    },
    version: {
        py3: {
            embedded_launcher: true,
        },
    },
}

// Python script for generating a FhirResourceSpec proto message based on fhir spec json files
python_binary_host {
    name: "generate-fhir-spec",
    main: "generate_fhir_spec.py",
    srcs: [
        "generate_fhir_spec.py",
    ],
    libs: [
        "fhirspec-py-proto",
        "fhir-spec-extractor",
    ],
}

// Genrule that runs generate_fhir_spec.py to generate a FhirResourceSpec proto binary file
genrule {
    name: "generate-fhir-spec-r4-binarypb",
    srcs: [
        "//external/fhir/spec/r4:resource-definitions",
    ],
    tools: ["generate-fhir-spec"],
    cmd: "$(location generate-fhir-spec) $(out) $(in)",
    out: ["fhirspec-r4.binarypb"],
}