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defmodule PowerDNSex.Managers.RecordsManager do
alias PowerDNSex.HttpClient
alias PowerDNSex.Models.{Zone, Record, Error}
alias PowerDNSex.Models.ResourceRecordSet, as: RRSet
alias PowerDNSex.Managers.ZonesManager
alias HTTPoison.Response
def create(%Zone{} = zone, %{} = rrset_attrs) do
changetype = %{changetype_key(rrset_attrs) => "REPLACE"}
rrset_attrs = Map.merge(rrset_attrs, changetype)
patch(zone, rrset_attrs)
end
def show(zone_name, %{} = rrset_attrs) do
case ZonesManager.show(zone_name) do
{:ok, zone} -> RRSet.find(zone.rrsets, rrset_attrs)
_ -> nil
end
end
def update(%Zone{} = zone, %{} = rrset_attrs) do
changetype = %{changetype_key(rrset_attrs) => "REPLACE"}
rrset_attrs = Map.merge(rrset_attrs, changetype)
patch(zone, rrset_attrs)
end
def delete(%Zone{} = zone, %{} = rrset_attrs) do
changetype = %{changetype_key(rrset_attrs) => "DELETE"}
rrset_attrs = Map.merge(rrset_attrs, changetype)
patch(zone, rrset_attrs)
end
###
# Private
##
defp changetype_key(attrs) do
key = "changetype"
if Map.has_key?(attrs, key), do: key, else: String.to_atom(key)
end
defp process_request_response(%Response{body: body, status_code: status}) do
case status do
s when s == 204 -> :ok
s when s < 300 ->
IO.puts "Response status: #{s}"
:ok
s when s >= 300 ->
error = Poison.decode!(body, as: %Error{})
{:error, %{error | http_status_code: s} }
end
end
defp patch(%Zone{url: nil}, _) do
raise "[Records Manager] Zone URL attribute is empty!"
end
defp patch(%Zone{} = zone, %RRSet{} = rrset) do
zone.url
|> HttpClient.patch!(RRSet.as_body(rrset))
|> process_request_response
end
defp patch(%Zone{} = zone, %{} = rrset_attrs) do
patch(zone, RRSet.build(rrset_attrs))
end
defp has_attrs?(rrset, attrs) do
Map.keys(attrs)
|> Enum.all?(&(equal_attr?(&1, attrs[&1], rrsets)))
end
end
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