import { RequestOptions2 } from 'urllib';
import { Service } from 'egg'
import * as Raven from 'raven'

interface PagenatedResult<T> {
  data: T[]
  total: number
}

export class BaseService extends Service {
  baseFields: string[]
  requestToPass: <T>(host: string, url: string, options: RequestOptions2) => Promise<T>
  constructPaginatedResult: <T>(result: T[], count: number) => PagenatedResult<T>
  pickFieldForResult: <T>(result: T, fields: string[], withOutFields: string[]) => T
}

interface ExportSentry {
  judgeError: (err: any) => boolean
  extra: any
  tags: any
}

declare module 'egg' {
  // extend context
  interface Context {
    validator: {
      requestBody: <T>() => T
      requestQuery: <T>() => T
      requestQueries: <T>() => T
    }
    logSentryError: (e: any) => void
  }

  // extend your config
  interface EggAppConfig {
    sentry: {
      dsn?: string
      errCallback?: (err: any) => boolean
    }
  }

  interface Application {
    Raven: Raven.Client
  }
  interface IService {
    base: BaseService
    sentry: ExportSentry
  }
}