import { SchemaModel } from '@verb/src/libs/shared/base/base.model';
import { SubSchema } from '@verb/src/libs/shared/json-schema-validator/schema-types';

export class StreamMetricsModel implements SchemaModel<StreamMetricsSchema> {
  public createdAt = new Date();
  public endedAt: Date | null = null;
  public startedAt: Date | null = null;

  public constructor(streamMetricsSchema?: StreamMetricsSchema) {
    if (streamMetricsSchema) {
      this.fromSchema(streamMetricsSchema);
    }
  }

  public fromSchema(streamMetricsSchema: StreamMetricsSchema) {
    this.createdAt = new Date(streamMetricsSchema.created_at);
    this.endedAt = streamMetricsSchema.ended_at ? new Date(streamMetricsSchema.ended_at) : null;
    this.startedAt = streamMetricsSchema.started_at
      ? new Date(streamMetricsSchema.started_at)
      : null;
  }

  public toSchema(): StreamMetricsSchema {
    return {
      created_at: this.createdAt.toUTCString(),
      ended_at: this.endedAt ? this.endedAt.toUTCString() : null,
      started_at: this.startedAt ? this.startedAt.toUTCString() : null,
    };
  }
}

export interface StreamMetricsSchema {
  created_at: string;
  ended_at: string | null;
  started_at: string | null;
}

export const streamMetricsValidationSchema: SubSchema = {
  additionalProperties: false,
  description: 'Stream Metrics Schema Validation',
  properties: {
    created_at: {
      description: 'Created at',
      type: 'string',
    },
    ended_at: {
      description: 'Ended at',
      type: 'string',
    },
    started_at: {
      description: 'Started at',
      type: 'string',
    },
  },
  required: ['created_at'],
  type: 'object',
};