/* Copyright 2022 The Matrix.org Foundation C.I.C
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

 -- The thread_id columns can now be made non-nullable.
--
-- SQLite doesn't support modifying columns to an existing table, so it must
-- be recreated.

-- Create the new tables.
CREATE TABLE event_push_actions_staging_new (
    event_id TEXT NOT NULL,
    user_id TEXT NOT NULL,
    actions TEXT NOT NULL,
    notif SMALLINT NOT NULL,
    highlight SMALLINT NOT NULL,
    unread SMALLINT,
    thread_id TEXT,
    inserted_ts BIGINT,
    CONSTRAINT event_push_actions_staging_thread_id CHECK (thread_id is NOT NULL)
);

CREATE TABLE event_push_actions_new (
    room_id TEXT NOT NULL,
    event_id TEXT NOT NULL,
    user_id TEXT NOT NULL,
    profile_tag VARCHAR(32),
    actions TEXT NOT NULL,
    topological_ordering BIGINT,
    stream_ordering BIGINT,
    notif SMALLINT,
    highlight SMALLINT,
    unread SMALLINT,
    thread_id TEXT,
    CONSTRAINT event_id_user_id_profile_tag_uniqueness UNIQUE (room_id, event_id, user_id, profile_tag),
    CONSTRAINT event_push_actions_thread_id CHECK (thread_id is NOT NULL)
);

CREATE TABLE event_push_summary_new (
    user_id TEXT NOT NULL,
    room_id TEXT NOT NULL,
    notif_count BIGINT NOT NULL,
    stream_ordering BIGINT NOT NULL,
    unread_count BIGINT,
    last_receipt_stream_ordering BIGINT,
    thread_id TEXT,
    CONSTRAINT event_push_summary_thread_id CHECK (thread_id is NOT NULL)
);

-- Copy the data.
INSERT INTO event_push_actions_staging_new (event_id, user_id, actions, notif, highlight, unread, thread_id, inserted_ts)
    SELECT event_id, user_id, actions, notif, highlight, unread, thread_id, inserted_ts
    FROM event_push_actions_staging;

INSERT INTO event_push_actions_new (room_id, event_id, user_id, profile_tag, actions, topological_ordering, stream_ordering, notif, highlight, unread, thread_id)
    SELECT room_id, event_id, user_id, profile_tag, actions, topological_ordering, stream_ordering, notif, highlight, unread, thread_id
    FROM event_push_actions;

INSERT INTO event_push_summary_new (user_id, room_id, notif_count, stream_ordering, unread_count, last_receipt_stream_ordering, thread_id)
    SELECT user_id, room_id, notif_count, stream_ordering, unread_count, last_receipt_stream_ordering, thread_id
    FROM event_push_summary;

-- Drop the old tables.
DROP TABLE event_push_actions_staging;
DROP TABLE event_push_actions;
DROP TABLE event_push_summary;

-- Rename the tables.
ALTER TABLE event_push_actions_staging_new RENAME TO event_push_actions_staging;
ALTER TABLE event_push_actions_new RENAME TO event_push_actions;
ALTER TABLE event_push_summary_new RENAME TO event_push_summary;

-- Recreate the indexes.
CREATE INDEX event_push_actions_staging_id ON event_push_actions_staging(event_id);

CREATE INDEX event_push_actions_highlights_index ON event_push_actions (user_id, room_id, topological_ordering, stream_ordering);
CREATE INDEX event_push_actions_rm_tokens on event_push_actions( user_id, room_id, topological_ordering, stream_ordering );
CREATE INDEX event_push_actions_room_id_user_id on event_push_actions(room_id, user_id);
CREATE INDEX event_push_actions_stream_ordering on event_push_actions( stream_ordering, user_id );
CREATE INDEX event_push_actions_u_highlight ON event_push_actions (user_id, stream_ordering);

CREATE UNIQUE INDEX event_push_summary_unique_index2 ON event_push_summary (user_id, room_id, thread_id) ;

-- Recreate some indexes in the background, by re-running the background updates
-- from 72/02event_push_actions_index.sql and 72/06thread_notifications.sql.
INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
  (7706, 'event_push_summary_unique_index2', '{}')
  ON CONFLICT (update_name) DO UPDATE SET progress_json = '{}';
INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
  (7706, 'event_push_actions_stream_highlight_index', '{}')
  ON CONFLICT (update_name) DO UPDATE SET progress_json = '{}';