X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fuser_relationship.ex;h=2f77697d4db18b4e1b6ae9b78177f7286e4fbe6f;hb=b058df3faa60f3996ad02362432cf7567e87f100;hp=01b6ace9d6f77a7a63ab2397ab625bfa26da5d57;hpb=de62e633d3c5c939ac2dd3099005f0ecce609f9f;p=akkoma

diff --git a/lib/pleroma/user_relationship.ex b/lib/pleroma/user_relationship.ex
index 01b6ace9d..2f77697d4 100644
--- a/lib/pleroma/user_relationship.ex
+++ b/lib/pleroma/user_relationship.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.UserRelationship do
@@ -8,6 +8,8 @@ defmodule Pleroma.UserRelationship do
   import Ecto.Changeset
   import Ecto.Query
 
+  alias Ecto.Changeset
+  alias Pleroma.FollowingRelationship
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.UserRelationship
@@ -15,12 +17,12 @@ defmodule Pleroma.UserRelationship do
   schema "user_relationships" do
     belongs_to(:source, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:target, User, type: FlakeId.Ecto.CompatType)
-    field(:relationship_type, UserRelationshipTypeEnum)
+    field(:relationship_type, Pleroma.UserRelationship.Type)
 
     timestamps(updated_at: false)
   end
 
-  for relationship_type <- Keyword.keys(UserRelationshipTypeEnum.__enum_map__()) do
+  for relationship_type <- Keyword.keys(Pleroma.UserRelationship.Type.__enum_map__()) do
     # `def create_block/2`, `def create_mute/2`, `def create_reblog_mute/2`,
     #   `def create_notification_mute/2`, `def create_inverse_subscription/2`
     def unquote(:"create_#{relationship_type}")(source, target),
@@ -37,6 +39,10 @@ defmodule Pleroma.UserRelationship do
       do: exists?(unquote(relationship_type), source, target)
   end
 
+  def user_relationship_types, do: Keyword.keys(user_relationship_mappings())
+
+  def user_relationship_mappings, do: Pleroma.UserRelationship.Type.__enum_map__()
+
   def changeset(%UserRelationship{} = user_relationship, params \\ %{}) do
     user_relationship
     |> cast(params, [:relationship_type, :source_id, :target_id])
@@ -61,8 +67,9 @@ defmodule Pleroma.UserRelationship do
       target_id: target.id
     })
     |> Repo.insert(
-      on_conflict: {:replace_all_except, [:id]},
-      conflict_target: [:source_id, :relationship_type, :target_id]
+      on_conflict: {:replace_all_except, [:id, :inserted_at]},
+      conflict_target: [:source_id, :relationship_type, :target_id],
+      returning: true
     )
   end
 
@@ -75,18 +82,134 @@ defmodule Pleroma.UserRelationship do
     end
   end
 
-  defp validate_not_self_relationship(%Ecto.Changeset{} = changeset) do
+  def dictionary(
+        source_users,
+        target_users,
+        source_to_target_rel_types \\ nil,
+        target_to_source_rel_types \\ nil
+      )
+
+  def dictionary(
+        _source_users,
+        _target_users,
+        [] = _source_to_target_rel_types,
+        [] = _target_to_source_rel_types
+      ) do
+    []
+  end
+
+  def dictionary(
+        source_users,
+        target_users,
+        source_to_target_rel_types,
+        target_to_source_rel_types
+      )
+      when is_list(source_users) and is_list(target_users) do
+    source_user_ids = User.binary_id(source_users)
+    target_user_ids = User.binary_id(target_users)
+
+    get_rel_type_codes = fn rel_type -> user_relationship_mappings()[rel_type] end
+
+    source_to_target_rel_types =
+      Enum.map(source_to_target_rel_types || user_relationship_types(), &get_rel_type_codes.(&1))
+
+    target_to_source_rel_types =
+      Enum.map(target_to_source_rel_types || user_relationship_types(), &get_rel_type_codes.(&1))
+
+    __MODULE__
+    |> where(
+      fragment(
+        "(source_id = ANY(?) AND target_id = ANY(?) AND relationship_type = ANY(?)) OR \
+        (source_id = ANY(?) AND target_id = ANY(?) AND relationship_type = ANY(?))",
+        ^source_user_ids,
+        ^target_user_ids,
+        ^source_to_target_rel_types,
+        ^target_user_ids,
+        ^source_user_ids,
+        ^target_to_source_rel_types
+      )
+    )
+    |> select([ur], [ur.relationship_type, ur.source_id, ur.target_id])
+    |> Repo.all()
+  end
+
+  def exists?(dictionary, rel_type, source, target, func) do
+    cond do
+      is_nil(source) or is_nil(target) ->
+        false
+
+      dictionary ->
+        [rel_type, source.id, target.id] in dictionary
+
+      true ->
+        func.(source, target)
+    end
+  end
+
+  @doc ":relationships option for StatusView / AccountView / NotificationView"
+  def view_relationships_option(reading_user, actors, opts \\ [])
+
+  def view_relationships_option(nil = _reading_user, _actors, _opts) do
+    %{user_relationships: [], following_relationships: []}
+  end
+
+  def view_relationships_option(%User{} = reading_user, actors, opts) do
+    {source_to_target_rel_types, target_to_source_rel_types} =
+      case opts[:subset] do
+        :source_mutes ->
+          # Used for statuses rendering (FE needs `muted` flag for each status when statuses load)
+          {[:mute], []}
+
+        nil ->
+          {[:block, :mute, :notification_mute, :reblog_mute], [:block, :inverse_subscription]}
+
+        unknown ->
+          raise "Unsupported :subset option value: #{inspect(unknown)}"
+      end
+
+    user_relationships =
+      UserRelationship.dictionary(
+        [reading_user],
+        actors,
+        source_to_target_rel_types,
+        target_to_source_rel_types
+      )
+
+    following_relationships =
+      case opts[:subset] do
+        :source_mutes ->
+          []
+
+        nil ->
+          FollowingRelationship.all_between_user_sets([reading_user], actors)
+
+        unknown ->
+          raise "Unsupported :subset option value: #{inspect(unknown)}"
+      end
+
+    %{user_relationships: user_relationships, following_relationships: following_relationships}
+  end
+
+  defp validate_not_self_relationship(%Changeset{} = changeset) do
     changeset
-    |> validate_change(:target_id, fn _, target_id ->
-      if target_id == get_field(changeset, :source_id) do
-        [target_id: "can't be equal to source_id"]
+    |> validate_source_id_target_id_inequality()
+    |> validate_target_id_source_id_inequality()
+  end
+
+  defp validate_source_id_target_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :source_id, fn _, source_id ->
+      if source_id == get_field(changeset, :target_id) do
+        [source_id: "can't be equal to target_id"]
       else
         []
       end
     end)
-    |> validate_change(:source_id, fn _, source_id ->
-      if source_id == get_field(changeset, :target_id) do
-        [source_id: "can't be equal to target_id"]
+  end
+
+  defp validate_target_id_source_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :target_id, fn _, target_id ->
+      if target_id == get_field(changeset, :source_id) do
+        [target_id: "can't be equal to source_id"]
       else
         []
       end