Add working implementation of state resolution

Add some database seeds

priv/repo/seeds.exs

@@ -1,11 +1,73 @@
-# Script for populating the database. You can run it as:
-#
-#     mix run priv/repo/seeds.exs
-#
-# Inside the script, you can read and write to any of your
-# repositories directly:
-#
-#     MatrixServer.Repo.insert!(%MatrixServer.SomeSchema{})
-#
-# We recommend using the bang functions (`insert!`, `update!`
-# and so on) as they will fail if something goes wrong.
+alias MatrixServer.{Repo, Room, Event}
+
+# Auth difference example from here:
+# https://matrix.org/docs/guides/implementing-stateres#auth-differences
+
+Repo.insert!(%Room{
+  id: "room1",
+  visibility: :public
+})
+
+Repo.insert!(
+  Event.create_room("room1", "alice", "v1")
+  |> Map.put(:origin_server_ts, 0)
+  |> Map.put(:event_id, "create")
+)
+
+Repo.insert!(
+  Event.join("room1", "alice")
+  |> Map.put(:prev_events, ["create"])
+  |> Map.put(:auth_events, ["create"])
+  |> Map.put(:origin_server_ts, 1)
+  |> Map.put(:event_id, "join_alice")
+)
+
+Repo.insert!(
+  Event.join("room1", "bob")
+  |> Map.put(:prev_events, ["join_alice"])
+  |> Map.put(:auth_events, ["create"])
+  |> Map.put(:origin_server_ts, 2)
+  |> Map.put(:event_id, "join_bob")
+)
+
+Repo.insert!(
+  Event.join("room1", "charlie")
+  |> Map.put(:prev_events, ["join_bob"])
+  |> Map.put(:auth_events, ["create"])
+  |> Map.put(:origin_server_ts, 3)
+  |> Map.put(:event_id, "join_charlie")
+)
+
+%Event{content: content} = event = Event.power_levels("room1", "alice")
+event = %Event{event | content: %{content | "users" => %{"alice" => 100, "bob" => 100}}}
+
+Repo.insert!(
+  event
+  |> Map.put(:prev_events, ["join_alice"])
+  |> Map.put(:auth_events, ["create", "join_alice"])
+  |> Map.put(:origin_server_ts, 4)
+  |> Map.put(:event_id, "a")
+)
+
+%Event{content: content} = event = Event.power_levels("room1", "bob")
+
+event = %Event{
+  event
+  | content: %{content | "users" => %{"alice" => 100, "bob" => 100, "charlie" => 100}}
+}
+
+Repo.insert!(
+  event
+  |> Map.put(:prev_events, ["a"])
+  |> Map.put(:auth_events, ["create", "join_bob", "a"])
+  |> Map.put(:origin_server_ts, 5)
+  |> Map.put(:event_id, "b")
+)
+
+Repo.insert!(
+  Event.room_topic("room1", "alice", "sneed")
+  |> Map.put(:prev_events, ["a"])
+  |> Map.put(:auth_events, ["create", "join_alice", "a"])
+  |> Map.put(:origin_server_ts, 5)
+  |> Map.put(:event_id, "fork")
+)