-- =============================================================================
-- E2E test database schema for the ``sientia_data`` namespace.
--
-- Mirrors the production DDL one-to-one so any change in production can be
-- pasted directly into this file. The conftest fixture drops the schema and
-- loads this SQL into the testcontainers Postgres before every test.
--
-- The gateway only touches ``sientia_data.predictions``: it updates
-- ``write_status`` (contract C3, SIENTIAPDE-1975) on the row the Laborious
-- inserted. Same DDL as ``sientia-dataops-laborious/e2e/db_schema.sql``.
-- =============================================================================

CREATE SCHEMA IF NOT EXISTS sientia_data;

-- -----------------------------------------------------------------------------
-- sientia_data.predictions
-- -----------------------------------------------------------------------------
CREATE TABLE IF NOT EXISTS sientia_data.predictions (
    model_id              int4 NOT NULL,
    prediction            numeric NULL,
    prediction_confidence numeric NOT NULL,
    response_time         numeric NOT NULL,
    prediction_status     text NOT NULL,
    "timestamp"           timestamptz NOT NULL,
    created_at            timestamptz DEFAULT CURRENT_TIMESTAMP NOT NULL,
    "comments"            text NULL,
    metadata_id           varchar(24) NULL,
    write_status          text NULL,
    CONSTRAINT unique_model_id_timestamp
        UNIQUE (model_id, "timestamp"),
    CONSTRAINT chk_predictions_write_status
        CHECK (write_status IN ('pending', 'ok', 'error', 'session_bad'))
);