package kvstore

const sqlSchema = `
BEGIN IMMEDIATE;

CREATE TABLE IF NOT EXISTS kv(
  Collection TEXT    NOT NULL,
  ID         INTEGER NOT NULL,
  Data       BLOB,
  PRIMARY KEY (Collection, ID)
) WITHOUT ROWID;

CREATE TABLE IF NOT EXISTS maxSeqNum(
  ID        INTEGER NOT NULL PRIMARY KEY,
  Value     INTEGER NOT NULL
) WITHOUT ROWID;

INSERT INTO maxSeqNum(ID, Value) VALUES (1, 0) ON CONFLICT DO NOTHING;

COMMIT;`

const sqlKVUpsert = `
INSERT INTO kv
  (Collection,ID,Data) VALUES (?,?,?)
ON CONFLICT(Collection,ID) DO UPDATE SET
  Data=excluded.Data
WHERE
  ID=excluded.ID`

const sqlKVDelete = `DELETE FROM kv WHERE Collection=? AND ID=?`
const sqlKVIterate = `SELECT ID,Data FROM kv WHERE Collection=?`

const sqlMaxSeqNumGet = `SELECT Value FROM maxSeqNum WHERE ID=1`
const sqlMaxSeqNumSet = `UPDATE maxSeqNum SET Value=? WHERE ID=1`