const nest = require('depnest')
var pull = require('pull-stream')

exports.gives = nest('feed.pull.public')
exports.needs = nest({
  'sbot.pull.feed': 'first',
  'message.sync.isBlocked': 'first'
})

exports.create = function (api) {
  return nest('feed.pull.public', (opts) => {
    // handle last item passed in as lt
    opts.lt = (opts.lt && opts.lt.value)
      ? opts.lt.value.timestamp
      : opts.lt

    return pull(
      api.sbot.pull.feed(opts),
      pull.filter(msg => !api.message.sync.isBlocked(msg))
    )
  })
}