CREATE TABLE hosts (
  id                 TEXT PRIMARY KEY NOT NULL,
  last_health_check  TIMESTAMP NOT NULL DEFAULT NOW(),
  token              TEXT NOT NULL
);

INSERT INTO hosts (id, token) VALUES ('baikal', 'changeme');

ALTER TABLE vms 
ADD COLUMN host TEXT REFERENCES hosts(id) ON DELETE RESTRICT DEFAULT 'baikal';

CREATE TABLE operations (
  id                 TEXT PRIMARY KEY NOT NULL,
  email              TEXT REFERENCES accounts(email) ON DELETE RESTRICT,
  assigned_host      TEXT NULL,
  host_status        TEXT NULL,
  created            TIMESTAMP NOT NULL DEFAULT NOW(),
  assigned           TIMESTAMP NULL,
  completed          TIMESTAMP NULL,
  payload            TEXT NOT NULL,
);

CREATE TABLE host_operation (
  host        TEXT NOT NULL,
  operation   TEXT NOT NULL,
  assignment_status TEXT NULL,
  assignment_status_timestamp  TIMESTAMP,
  PRIMARY KEY (host, operation)
);

UPDATE schemaversion SET version = 9;