export interface MonitoringStackProps extends DeploymentStackProps {
  // ...
}

// This could be in the same stack as your resources, as a nested stack, or a separate stack as you see fit
export class MonitoringStack extends DeploymentStack {
  constructor(parent: App, name: string, props: MonitoringStackProps) {
    super(parent, name, props);

    const monitoring = new MonitoringFacade(this, "Monitoring", {
      // Defaults are provided for these, but they can be customized as desired
      metricFactoryDefaults: { ... },
      alarmFactoryDefaults: { ... },
      dashboardFactory: { ... },
    });

    // Monitor your resources
    monitoring
      .addLargeHeader("Storage")
      .monitorDynamoTable({ /* Monitor a DynamoDB table */ })
      .monitorDynamoTable({ /* and a different table */ })
      .monitorLambdaFunction({ /* and a Lambda function */ })
      .monitorCustom({ /* and some arbitrary metrics in CloudWatch */ })
      // ... etc.
  }
}

const onAlarmTopic = new Topic(this, "AlarmTopic");

const monitoring = new MonitoringFacade(this, "Monitoring", {
  // ...other props
  alarmFactoryDefaults: {
    // ....other props
    action: new SnsAlarmActionStrategy({ onAlarmTopic }),
  },
});

monitoring
  .monitorSomething(something, {
    addSomeAlarm: {
      Warning: {
        // ...other props
        threshold: 42,
        actionOverride: new SnsAlarmActionStrategy({ onAlarmTopic }),
      }
    }
  });

// create metrics manually
const m1 = new Metric(/* ... */);

const metricFactory = monitoringFacade.createMetricFactory();

// create metrics using metric factory
const m1 = metricFactory.createMetric(/* ... */);

monitorCustom({
  title: "Metric with anomaly detection",
  metrics: [
    {
      metric: m1,
      anomalyDetectionStandardDeviationToRender: 3
    }
  ]
})

monitorCustom({
  title: "Metric with anomaly detection and alarm",
  metrics: [
    {
      metric: m1,
      alarmFriendlyName: "MetricWithAnomalyDetectionAlarm",
      anomalyDetectionStandardDeviationToRender: 3,
      addAlarmOnAnomaly: {
        Warning: {
          standardDeviationForAlarm: 4,
          alarmWhenAboveTheBand: true,
          alarmWhenBelowTheBand: true
        }
      }
    }
  ]
})

monitorCustom({
  title: "Metric search",
  metrics: [
    {
      searchQuery: "My.Prefix.",
      dimensionsMap: {
        FirstDimension: "FirstDimensionValue",
        // Allow any value for the given dimension (pardon the weird typing to satisfy DimensionsMap)
        SecondDimension: undefined as unknown as string
      }
      statistic: MetricStatistic.SUM,
    }
  ]
})

monitoring
  .monitorSomething(something, {
    addSomeAlarm: {
      Warning: {
        // ...other props
        metricAdjuster: Route53HealthCheckMetricAdjuster.INSTANCE,
      }
    }
  });

import { CfnHealthCheck } from "aws-cdk-lib/aws-route53";

monitoring
  .monitorSomething(something, {
    addSomeAlarm: {
      Warning: {
        // ...other props
        customTags: ["route53-health-check"],
        metricAdjuster: Route53HealthCheckMetricAdjuster.INSTANCE,
      }
    }
  });

const alarms = monitoring.createdAlarmsWithTag("route53-health-check");

const healthChecks = alarms.map(({ alarm }) => {
  const id = getHealthCheckConstructId(alarm);

  return new CfnHealthCheck(scope, id, {
    healthCheckConfig: {
      // ...other props
      type: "CLOUDWATCH_METRIC",
      alarmIdentifier: {
        name: alarm.alarmName,
        region: alarm.stack.region,
      },
    },
  });
});

// create the dynamic dashboard factory.
const factory = new DynamicDashboardFactory(stack, "DynamicDashboards", {
  dashboardNamePrefix: "ExampleDashboards",
  dashboardConfigs: [
    // 'name' is the minimum required configuration
    { name: "HostedService" },
    // below is an example of additional dashboard-specific config options
    {
      name: "Infrastructure",
      range: Duration.hours(3),
      periodOverride: PeriodOverride.AUTO,
      renderingPreference: DashboardRenderingPreference.BITMAP_ONLY
    },
  ],
});

export enum DashboardTypes {
  HostedService = "HostedService",
  Infrastructure = "Infrastructure",
}

class ExampleSegment implements IDynamicDashboardSegment {
  widgetsForDashboard(name: string): IWidget[] {
    // this logic is what's responsible for allowing your dynamic segment to return
    // different widgets for different dashboards
    switch (name) {
      case DashboardTypes.HostedService:
        return [new TextWidget({ markdown: "This shows metrics for your service hosted on AWS Infrastructure" })];
      case DashboardTypes.Infrastructure:
        return [new TextWidget({ markdown: "This shows metrics for the AWS Infrastructure supporting your hosted service" })];
      default:
        throw new Error("Unexpected dashboard name!");
    }
  }
}

monitoring.addDynamicSegment(new ExampleSegment());

monitoring.monitorScope(stack, {
  // With optional configuration
  lambda: {
    props: {
      addLatencyP50Alarm: {
        Critical: { maxLatency: Duration.seconds(10) },
      },
    },
  },

  // Some resources that aren't dependent on nodes (e.g. general metrics across instances/account) may be included
  // by default, which can be explicitly disabled.
  billing: { enabled: false },
  ec2: { enabled: false },
  elasticCache: { enabled: false },
});