//    Copyright 2019 Google Inc.
//
//    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
//
//        https://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.

syntax = "proto3";

package google.fhir.r4.core;

import "google/protobuf/any.proto";
import "google/fhir/core/proto/annotations.proto";
import "google/fhir/r4/proto/core/codes.proto";
import "google/fhir/r4/proto/core/datatypes.proto";

option java_multiple_files = true;
option java_package = "com.google.fhir.r4.core";
option (.google.fhir.proto.fhir_version) = R4;
option go_package = "github.com/google/fhir/go/google/fhir/r4/proto/core/resources/risk_assessment_go_proto";

// Auto-generated from StructureDefinition for RiskAssessment.
// Potential outcomes for a subject with likelihood.
// See http://hl7.org/fhir/StructureDefinition/RiskAssessment
message RiskAssessment {
  option (.google.fhir.proto.structure_definition_kind) = KIND_RESOURCE;
  option (.google.fhir.proto.fhir_structure_definition_url) =
      "http://hl7.org/fhir/StructureDefinition/RiskAssessment";

  // Logical id of this artifact
  Id id = 1;

  // Metadata about the resource
  Meta meta = 2;

  // A set of rules under which this content was created
  Uri implicit_rules = 3;

  // Language of the resource content
  Code language = 4;

  // Text summary of the resource, for human interpretation
  Narrative text = 5;

  // Contained, inline Resources
  repeated protobuf.Any contained = 6;

  // Field 7 reserved for strongly-typed ContainedResource for id:
  // RiskAssessment.contained
  reserved 7;

  // Additional content defined by implementations
  repeated Extension extension = 8;

  // Extensions that cannot be ignored
  repeated Extension modifier_extension = 9;

  // Unique identifier for the assessment
  repeated Identifier identifier = 10;

  // Request fulfilled by this assessment
  Reference based_on = 11
      [(.google.fhir.proto.valid_reference_type) = "Resource"];

  // Part of this occurrence
  Reference parent = 12
      [(.google.fhir.proto.valid_reference_type) = "Resource"];

  // registered | preliminary | final | amended +
  message StatusCode {
    option (.google.fhir.proto.structure_definition_kind) = KIND_PRIMITIVE_TYPE;
    option (.google.fhir.proto.fhir_valueset_url) =
        "http://hl7.org/fhir/ValueSet/observation-status";
    option (.google.fhir.proto.fhir_profile_base) =
        "http://hl7.org/fhir/StructureDefinition/code";

    ObservationStatusCode.Value value = 1;

    String id = 2;

    repeated Extension extension = 3;
  }
  StatusCode status = 13
      [(.google.fhir.proto.validation_requirement) = REQUIRED_BY_FHIR];

  // Evaluation mechanism
  CodeableConcept method = 14;

  // Type of assessment
  CodeableConcept code = 15;

  // Who/what does assessment apply to?
  Reference subject = 16 [
    (.google.fhir.proto.validation_requirement) = REQUIRED_BY_FHIR,
    (.google.fhir.proto.valid_reference_type) = "Patient",
    (.google.fhir.proto.valid_reference_type) = "Group"
  ];

  // Where was assessment performed?
  Reference encounter = 17
      [(.google.fhir.proto.valid_reference_type) = "Encounter"];

  // When was assessment made?
  message OccurrenceX {
    option (.google.fhir.proto.is_choice_type) = true;

    oneof choice {
      DateTime date_time = 1;
      Period period = 2;
    }
  }
  OccurrenceX occurrence = 18;

  // Condition assessed
  Reference condition = 19
      [(.google.fhir.proto.valid_reference_type) = "Condition"];

  // Who did assessment?
  Reference performer = 20 [
    (.google.fhir.proto.valid_reference_type) = "Practitioner",
    (.google.fhir.proto.valid_reference_type) = "PractitionerRole",
    (.google.fhir.proto.valid_reference_type) = "Device"
  ];

  // Why the assessment was necessary?
  repeated CodeableConcept reason_code = 21;

  // Why the assessment was necessary?
  repeated Reference reason_reference = 22 [
    (.google.fhir.proto.valid_reference_type) = "Condition",
    (.google.fhir.proto.valid_reference_type) = "Observation",
    (.google.fhir.proto.valid_reference_type) = "DiagnosticReport",
    (.google.fhir.proto.valid_reference_type) = "DocumentReference"
  ];

  // Information used in assessment
  repeated Reference basis = 23
      [(.google.fhir.proto.valid_reference_type) = "Resource"];

  // Outcome predicted
  message Prediction {
    // Unique id for inter-element referencing
    String id = 1;

    // Additional content defined by implementations
    repeated Extension extension = 2;

    // Extensions that cannot be ignored even if unrecognized
    repeated Extension modifier_extension = 3;

    // Possible outcome for the subject
    CodeableConcept outcome = 4;

    // Likelihood of specified outcome
    message ProbabilityX {
      option (.google.fhir.proto.fhir_path_message_constraint) =
          "(low.empty() or ((low.code = '%') and (low.system = %ucum))) and (high.empty() or ((high.code = '%') and (high.system = %ucum)))";
      option (.google.fhir.proto.is_choice_type) = true;

      oneof choice {
        Decimal decimal = 1;
        Range range = 2;
      }
    }
    ProbabilityX probability = 5;

    // Likelihood of specified outcome as a qualitative value
    CodeableConcept qualitative_risk = 6;

    // Relative likelihood
    Decimal relative_risk = 7;

    // Timeframe or age range
    message WhenX {
      option (.google.fhir.proto.is_choice_type) = true;

      oneof choice {
        Period period = 1;
        Range range = 2;
      }
    }
    WhenX when = 8;

    // Explanation of prediction
    String rationale = 9;
  }
  repeated Prediction prediction = 24;

  // How to reduce risk
  String mitigation = 25;

  // Comments on the risk assessment
  repeated Annotation note = 26;
}
