-- Metadata {{{
CREATE TABLE version_history(
  component TEXT NOT NULL,
  from_version INTEGER NOT NULL,
  to_version INTEGER NOT NULL,
  author TEXT NOT NULL,
  _timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW(),
);
INSERT INTO version_history (component, from_version, to_version, author) VALUES ('ROOT', 0, 1, 'Initial Creation');


CREATE OR REPLACE FUNCTION update_timestamp_column()
RETURNS TRIGGER AS $$
BEGIN
  NEW._timestamp = now(); 
  RETURN NEW;
END;
$$ language 'plpgsql';

CREATE TABLE app_config(
  appname TEXT PRIMARY KEY,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- }}}

-- Twitch Auth {{{
INSERT INTO version_history (component, from_version, to_version, author) VALUES ('TWITCH_AUTH', 0, 1, 'Initial Creation');

-- Authorisation tokens allowing us to take actions on behalf of certain users or channels.
-- For example, channels we have joined will need to be authorised with a 'channel:bot' scope.
CREATE TABLE user_auth(
  userid TEXT PRIMARY KEY,
  token TEXT NOT NULL,
  refresh_token TEXT NOT NULL,
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  _timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE TRIGGER user_auth_timestamp BEFORE UPDATE ON user_auth
  FOR EACH ROW EXECUTE FUNCTION update_timestamp_column();

CREATE TABLE user_auth_scopes(
  userid TEXT NOT NULL REFERENCES user_auth(userid) ON DELETE CASCADE,
  scope TEXT NOT NULL
);

-- Which joins will be joined at startup,
-- and any configurable choices needed when joining the channel
CREATE TABLE bot_channels(
  userid TEXT PRIMARY KEY REFERENCES user_auth(userid) ON DELETE CASCADE,
  autojoin BOOLEAN DEFAULT true,
  joined_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  _timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE TRIGGER bot_channels_timestamp BEFORE UPDATE ON bot_channels
  FOR EACH ROW EXECUTE FUNCTION update_timestamp_column();


-- }}}



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