ALTER TABLE sends RENAME TO sends_old;

CREATE TABLE sends (
  uuid              TEXT NOT NULL   PRIMARY KEY,
  user_uuid         TEXT NOT NULL   REFERENCES users (uuid),

  name              TEXT    NOT NULL,
  notes             TEXT,

  atype             INTEGER NOT NULL,
  data              TEXT    NOT NULL,
  akey              TEXT    NOT NULL,
  password_hash     BLOB,
  password_salt     BLOB,
  password_iter     INTEGER,
  emails            TEXT,

  max_access_count  INTEGER,
  access_count      INTEGER NOT NULL,

  creation_date     DATETIME NOT NULL,
  revision_date     DATETIME NOT NULL,
  expiration_date   DATETIME,
  deletion_date     DATETIME NOT NULL,

  disabled          BOOLEAN NOT NULL,
  hide_email        BOOLEAN NOT NULL
);

INSERT INTO sends(
        uuid, user_uuid, name, notes, atype, data, akey, password_hash, password_salt, password_iter,
        max_access_count, access_count, creation_date, revision_date, expiration_date, deletion_date,
        disabled, hide_email
) SELECT uuid, user_uuid, name, notes, atype, data, akey, password_hash, password_salt, password_iter,
        max_access_count, access_count, creation_date, revision_date, expiration_date, deletion_date,
        disabled,
        CASE WHEN hide_email IS NOT NULL THEN hide_email ELSE false END
    FROM sends_old WHERE user_uuid IS NOT NULL;

DROP TABLE sends_old;

CREATE TABLE sends_otp (
    send_uuid       TEXT NOT NULL   REFERENCES sends(uuid) ON DELETE CASCADE ON UPDATE CASCADE,
    email           TEXT NOT NULL,
    code            TEXT NOT NULL,

    creation_date     DATETIME NOT NULL,
    revision_date     DATETIME NOT NULL,
    expiration_date   DATETIME NOT NULL,

    PRIMARY KEY(send_uuid, email)
);