/*
Copyright 2022 Splunk 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

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.
*/

import { Platform } from 'react-native';
import type { Attributes } from '@opentelemetry/api';
import type { ResourceAttributes } from '@opentelemetry/resources';
import { SemanticResourceAttributes } from '@opentelemetry/semantic-conventions';
import { getSessionId } from './session';
import { setNativeGlobalAttributes } from './native';
import { VERSION } from './version';
import { SCREEN_NAME } from './splunkAttributeNames';

let globalAttributes: Attributes = {};

//TODO get from semconv
const platformConstants = (Platform as any).constants;
const DEVICE_MODEL_NAME = 'device.model.name';
const DEVICE_MODEL_IDENTIFIER = 'device.model.identifier';
const OS_NAME = 'os.name';
const OS_TYPE = 'os.type';
const OS_VERSION = 'os.version';

// just for future where there may be a way to use proper resource
export function getResource(): ResourceAttributes {
  let resourceAttrs = {
    [SCREEN_NAME]: 'unknown',
    // ...SDK_INFO,
    [SemanticResourceAttributes.TELEMETRY_SDK_NAME]:
      '@hyperdx/otel-react-native',
    [SemanticResourceAttributes.TELEMETRY_SDK_VERSION]: VERSION,
    // Splunk specific attributes
    'rum.version': VERSION,
  };

  if (Platform.OS === 'ios') {
    resourceAttrs[OS_NAME] = 'iOS';
    resourceAttrs[OS_VERSION] = platformConstants.osVersion;
  } else {
    resourceAttrs[OS_NAME] = 'Android';
    resourceAttrs[OS_TYPE] = 'linux'; //matches android-sdk not sure if needed
    // Release should be Android version eg. 12 and Version is API version eg. 32
    resourceAttrs[OS_VERSION] = platformConstants.Release;
    resourceAttrs[DEVICE_MODEL_NAME] = platformConstants.Model;
    resourceAttrs[DEVICE_MODEL_IDENTIFIER] = platformConstants.Model;
  }

  return resourceAttrs;
}

globalAttributes = {
  ...getResource(),
};

//currently used for:
// rum.sessionId
//screen.name
//geolocation
export function setGlobalAttributes(attrs: object) {
  globalAttributes = Object.assign(globalAttributes, attrs);
  setNativeGlobalAttributes(globalAttributes);
}

export function getGlobalAttributes(): Attributes {
  return Object.assign(globalAttributes, {
    'rum.sessionId': getSessionId(),
  });
}