-- Ported from the SQLite migration of the same number.
-- The Files and Batch APIs. A file is what a client uploaded (a batch's
-- requests) or what a batch wrote (its answers, its errors), owned by the
-- project of the key that made it. A batch is a file of requests served one
-- by one at the lowest priority; each finished line is kept as it is
-- served, so a batch survives the control plane restarting under it, and
-- the lease says which gateway is working on it.
CREATE TABLE files (
  id         TEXT PRIMARY KEY,
  owner      TEXT NOT NULL,
  purpose    TEXT NOT NULL,
  filename   TEXT NOT NULL,
  bytes      BIGINT NOT NULL,
  content    BYTEA NOT NULL,
  created_at BIGINT NOT NULL,
  expires_at BIGINT NOT NULL DEFAULT 0
);
CREATE INDEX files_owner ON files (owner, created_at);

CREATE TABLE batches (
  id                TEXT PRIMARY KEY,
  owner             TEXT NOT NULL,
  key_id            TEXT NOT NULL,
  endpoint          TEXT NOT NULL,
  input_file_id     TEXT NOT NULL,
  completion_window TEXT NOT NULL,
  status            TEXT NOT NULL,
  output_file_id    TEXT NOT NULL DEFAULT '',
  error_file_id     TEXT NOT NULL DEFAULT '',
  total             BIGINT NOT NULL DEFAULT 0,
  completed         BIGINT NOT NULL DEFAULT 0,
  failed            BIGINT NOT NULL DEFAULT 0,
  created_at        BIGINT NOT NULL,
  in_progress_at    BIGINT NOT NULL DEFAULT 0,
  finalizing_at     BIGINT NOT NULL DEFAULT 0,
  completed_at      BIGINT NOT NULL DEFAULT 0,
  failed_at         BIGINT NOT NULL DEFAULT 0,
  expired_at        BIGINT NOT NULL DEFAULT 0,
  cancelling_at     BIGINT NOT NULL DEFAULT 0,
  cancelled_at      BIGINT NOT NULL DEFAULT 0,
  expires_at        BIGINT NOT NULL,
  metadata          TEXT NOT NULL DEFAULT '',
  errors            TEXT NOT NULL DEFAULT '',
  lease_owner       TEXT NOT NULL DEFAULT '',
  lease_until       BIGINT NOT NULL DEFAULT 0
);
CREATE INDEX batches_owner ON batches (owner, created_at);
CREATE INDEX batches_status ON batches (status, lease_until);

CREATE TABLE batch_results (
  batch_id TEXT NOT NULL,
  line     BIGINT NOT NULL,
  ok       BIGINT NOT NULL,
  data     TEXT NOT NULL,
  PRIMARY KEY (batch_id, line)
);