CREATE TABLE IF NOT EXISTS material_consumption_snapshots (
    timestamp timestamptz NOT NULL,
    calculation_id text NOT NULL,
    machine_id text NOT NULL,
    production_order text NOT NULL,
    run_id text NOT NULL,
    consumption_kg double precision NOT NULL,
    PRIMARY KEY (calculation_id, machine_id, production_order, timestamp)
);

-- Machine time series across orders; the primary key covers a specific order.
CREATE INDEX IF NOT EXISTS material_consumption_snapshots_machine_time_idx
    ON material_consumption_snapshots (calculation_id, machine_id, timestamp);

-- Channel identities are intentionally independent of material assignment.
CREATE TABLE IF NOT EXISTS channel_material_consumption_snapshots (
    timestamp timestamptz NOT NULL,
    calculation_id text NOT NULL,
    machine_id text NOT NULL,
    extruder text NOT NULL,
    doser_channel text NOT NULL,
    production_order text NOT NULL,
    run_id text NOT NULL,
    cumulative_consumption_kg double precision NOT NULL,
    material_number text NULL,
    material_name text NULL,
    material_mapping_status text NOT NULL CHECK (material_mapping_status IN ('ASSIGNED', 'UNAVAILABLE', 'AMBIGUOUS', 'UNMAPPED')),
    percentage_sum_valid boolean NOT NULL,
    PRIMARY KEY (calculation_id, machine_id, extruder, doser_channel, production_order, timestamp)
);

CREATE TABLE IF NOT EXISTS material_efficiency_snapshots (
    erp_feedback_timestamp timestamptz NOT NULL,
    material_snapshot_timestamp timestamptz NOT NULL,
    calculation_id text NOT NULL,
    machine_id text NOT NULL,
    workplace text NOT NULL,
    erp_production_order text NOT NULL,
    enlyze_production_order text NOT NULL,
    article_number text NULL,
    article_description text NULL,
    nominal_width_m double precision NULL,
    good_quantity_m2 double precision NOT NULL,
    material_consumption_kg double precision NOT NULL,
    material_consumption_kg_per_m2 double precision NOT NULL,
    material_consumption_g_per_m2 double precision NOT NULL,
    PRIMARY KEY (calculation_id, machine_id, enlyze_production_order, erp_feedback_timestamp)
);

CREATE INDEX IF NOT EXISTS material_efficiency_snapshots_machine_time_idx
    ON material_efficiency_snapshots (calculation_id, machine_id, erp_feedback_timestamp);

-- Instantaneous process measurements; no ERP good-area denominator.
CREATE TABLE IF NOT EXISTS material_application_snapshots (
    timestamp timestamptz NOT NULL,
    calculation_id text NOT NULL,
    machine_id text NOT NULL,
    production_order text NOT NULL,
    run_id text NOT NULL,
    application_g_m2 double precision NOT NULL,
    PRIMARY KEY (calculation_id, machine_id, production_order, timestamp)
);

CREATE INDEX IF NOT EXISTS material_application_snapshots_machine_time_idx
    ON material_application_snapshots (calculation_id, machine_id, timestamp);

CREATE TABLE IF NOT EXISTS power_meter_readings (
    meter text NOT NULL,
    timestamp timestamptz NOT NULL,
    energy_total_kwh double precision NOT NULL,
    energy_delta_kwh double precision NOT NULL,
    active_power_total_kw double precision NOT NULL,
    grid_frequency_hz double precision NOT NULL,
    power_outages double precision NULL,
    outage_delta double precision NULL,
    phase_active_power_kw jsonb NOT NULL DEFAULT '{}'::jsonb,
    PRIMARY KEY (meter, timestamp)
);
CREATE INDEX IF NOT EXISTS power_meter_readings_time_idx
    ON power_meter_readings (meter, timestamp DESC);

CREATE TABLE IF NOT EXISTS power_meter_monthly_reports (
    meter text NOT NULL,
    month text NOT NULL,
    report_path text NOT NULL,
    summary jsonb NOT NULL,
    generated_at timestamptz NOT NULL DEFAULT now(),
    PRIMARY KEY (meter, month)
);

-- Mutable ENLYZE downtime source records. external_id is the stable ENLYZE UUID.
CREATE TABLE IF NOT EXISTS production_downtime_events (
    external_id text PRIMARY KEY,
    machine_id text NOT NULL,
    production_order text NULL,
    source_type text NOT NULL,
    source_start timestamptz NOT NULL,
    source_end timestamptz NULL,
    attributed_start timestamptz NULL,
    attributed_end timestamptz NULL,
    attributed_duration_seconds double precision NULL,
    reason_id text NULL,
    reason_name text NULL,
    reason_description text NULL,
    reason_group text NULL,
    category text NOT NULL CHECK (category IN ('PLANNED', 'UNPLANNED', 'UNKNOWN')),
    comment text NULL,
    source_updated_at timestamptz NULL,
    last_reconciled_at timestamptz NOT NULL
);

CREATE INDEX IF NOT EXISTS production_downtime_events_machine_attributed_time_idx
    ON production_downtime_events (machine_id, attributed_start);
CREATE INDEX IF NOT EXISTS production_downtime_events_production_order_idx
    ON production_downtime_events (production_order);
CREATE INDEX IF NOT EXISTS production_downtime_events_category_idx
    ON production_downtime_events (category);
CREATE INDEX IF NOT EXISTS production_downtime_events_unresolved_idx
    ON production_downtime_events (machine_id, source_start)
    WHERE source_end IS NULL OR category = 'UNKNOWN';

-- One observed ERP order boundary per machine, used to clip open ENLYZE downtimes.
CREATE TABLE IF NOT EXISTS production_order_attribution_state (
    machine_id text PRIMARY KEY,
    production_order text NOT NULL,
    started_at timestamptz NOT NULL,
    ended_at timestamptz NULL
);