DROP VIEW IF EXISTS mv_reports_ucepsa_demo.loss_priority_board;

CREATE VIEW mv_reports_ucepsa_demo.loss_priority_board AS
WITH filtered AS (
    SELECT e.*
    FROM mv_reports_ucepsa_demo.loss_events_current e
    WHERE NOT (
        e.loss_type = 'STALE_OR_BAD_TELEMETRY'
        AND EXISTS (
            SELECT 1
            FROM mv_reports_ucepsa_demo.loss_events_current x
            WHERE x.machine_id = e.machine_id
              AND x.loss_type = 'SIN_TELEMETRIA'
        )
    )
)
SELECT
    row_number() OVER (
        ORDER BY
            (
                severity_score
                + LEAST((COALESCE(cost_eur, 0) * 10), 50)::int
                + LEAST((COALESCE(duration_min, 0) * 2), 40)::int
            ) DESC,
            detected_at DESC
    ) AS priority_rank,
    (
        severity_score
        + LEAST((COALESCE(cost_eur, 0) * 10), 50)::int
        + LEAST((COALESCE(duration_min, 0) * 2), 40)::int
    ) AS priority_score,
    CASE
        WHEN (
            severity_score
            + LEAST((COALESCE(cost_eur, 0) * 10), 50)::int
            + LEAST((COALESCE(duration_min, 0) * 2), 40)::int
        ) >= 90 THEN 'CRÍTICA'
        WHEN (
            severity_score
            + LEAST((COALESCE(cost_eur, 0) * 10), 50)::int
            + LEAST((COALESCE(duration_min, 0) * 2), 40)::int
        ) >= 60 THEN 'ALTA'
        WHEN (
            severity_score
            + LEAST((COALESCE(cost_eur, 0) * 10), 50)::int
            + LEAST((COALESCE(duration_min, 0) * 2), 40)::int
        ) >= 35 THEN 'MEDIA'
        ELSE 'BAJA'
    END AS priority_level,
    detected_at,
    machine_id,
    asset,
    order_ref,
    loss_type,
    severity,
    duration_min,
    cost_eur,
    status,
    description,
    recommended_action,
    evidence_json
FROM filtered
ORDER BY priority_score DESC, detected_at DESC;

GRANT SELECT ON mv_reports_ucepsa_demo.loss_priority_board TO grafana_ucepsa_ro;