import { Context } from '../../core/context'
import { Plugin } from '../../core/plugin'
import { logger } from '../logger'

const anonymizeContext = (ctx: Context): Context => {
  const evtCtx = ctx.event.context!
  evtCtx.locale = ''
  evtCtx.timezone = ''
  evtCtx.userAgent = ''

  return ctx
}

// NB: Removing anonymous and user id happen in `normalize.ts` in Segment plugin
// as it would otherwise be added back in there
export const ddAnonymizeContextPlugin = (): Plugin => {
  return {
    name: 'Anonymous Context',
    type: 'enrichment',
    version: '0.0.1',

    isLoaded: () => true,
    load: () => {
      logger.debug('Enabling Anonymous Context plugin')

      return Promise.resolve()
    },

    track: anonymizeContext,
    identify: anonymizeContext,
    page: anonymizeContext,
    group: anonymizeContext,
    alias: anonymizeContext,
    screen: anonymizeContext,
  }
}