def user_contacts(provider_id, filter) do
  query =
    from(
      u in User,
      preload: [:groups],
      where: u.provider_id == ^provider_id and u.type != "company"
    )

  query
  |> filter_sector(filter)
  |> filter_availability(filter)
end

defp filter_sector(query, %{"sector" => "Asset Management & Investment Funds"}) do
  query
  |> join(:inner, [u], p in Profile, p.user_id == u.id)
  |> where([u, p], fragment("(sectors->>'asset' = ?)", "true"))
end

defp filter_availability(query, %{"availability" => "now"}) do
  query
  |> join(:inner, [u], p in Profile, p.user_id == u.id)
  |> where([u, p], ^Date.utc_today >= p.placement_availability)
end

from(
  q in query,
  join: p in Profile,
  on: p.user_id == q.id,
  where: fragment("(sectors->>'asset' = ?)", "true")
)