'use strict';

const Joi = require('joi');
const Examples = require('./examples');


// Shared schema between schema sections

const internals = {
  serviceName: Joi.string().required().description('Unique name to identify the service')
};


// Activity

exports.activity = Joi.object({
  date: Joi.date().required().description('Date/time when the activity occurred'),
  type: Joi.string().required().description('The type of activity that occurred'),
  meta: Joi.object().optional().description('Any metadata related to the activity')
}).example(Examples.activities[0]);

exports.activities = Joi.array().items(exports.activity).example(Examples.activities);


// Datacenters

exports.datacenter = Joi.object({
  name: Joi.string().required().description('Name of datacenter'),
  url: Joi.string().required().description('URL of datacenter')
}).example(Examples.datacenters[0]);

exports.datacenters = Joi.array().items(exports.datacenter).example(Examples.datacenters);


// Services

exports.serviceName = internals.serviceName;

exports.serviceCount = Joi.number().default(1).description('Number of instances of the service');

exports.service = Joi.object({
  name: internals.serviceName,
  count: exports.serviceCount
}).example(Examples.services[0]);

exports.services = Joi.array().items(exports.service).example(Examples.services);

exports.serviceUpdate = Joi.object({
  count: exports.serviceCount.required()
});


// State

exports.stateAction = Joi.object({
  action: Joi.string().required().valid(['start', 'stop', 'restart'])
    .description('Action being performed on the deployment group')
});

exports.state = Joi.object({
  current: Joi.string().required().valid(['started', 'stopped']).default('stopped')
    .description('The current state of the deployment group')
});


// Deployments

exports.deploymentId = Joi.string().required().description('ID of deployment group');

exports.deploymentCreate = Joi.object({
  name: Joi.string().required().description('Name of deployment group'),
  datacenter: Joi.string().required().description('Datacenter the deployment group belongs to')
});

exports.deploymentUpdate = Joi.object({
  name: Joi.string().optional().description('Name of deployment group'),
  datacenter: Joi.string().optional().description('Datacenter the deployment group belongs to')
}).or('name', 'datacenter');

exports.deployment = exports.deploymentCreate.keys({
  id: exports.deploymentId,
  state: exports.state,
  services: exports.services
}).example(Examples.deployments[0]);

exports.deployments = Joi.array().items(exports.deployment);


// Manifests

exports.manifestId = Joi.string().required().description('ID of manifest').example(Examples.manifest.id);

exports.manifestCreate = Joi.object({
  format: Joi.string().default('yml').valid(['yml', 'json']).description('File format of raw data').example(Examples.manifest.format),
  type: Joi.string().default('docker-compose').valid(['docker-compose']).description('Type of manifest, e.g. docker-compose').example(Examples.manifest.type),
  raw: Joi.string().required().description('Original manifest file in a string form').example(Examples.manifest.raw),
  obj: Joi.object().required().description('Manifest file represented as JSON').example(Examples.manifest.obj)
});

exports.manifest = exports.manifestCreate.keys({
  id: exports.manifestId,
  created: Joi.date().required().description('Date/time when the manifest was created').example(Examples.manifest.created),
  deploymentId: exports.deploymentId
}).example(Examples.manifest);


// Metrics

exports.metric = Joi.object({
  service: internals.serviceName,
  cpu: Joi.number().required().description('CPU usage percentage'),
  memory: Joi.number().required().description('Total memory usage in bytes'),
  network: Joi.number().required().description('Total bytes per second transferred by the NIC')
}).example(Examples.metrics[0]);

exports.metrics = Joi.array().items(exports.metric).example(Examples.metrics);