Bermuda BLE SQL Debounce

debounce.sql

-- Add a SQL Integration and specify "state" for the column then 
-- paste query below. Update the line "entity_id = 'sensor....'" to refer 
-- to the sensor you want to debounce

WITH
  StateHistory as (
    SELECT
      state_id,
      state,
      last_updated_ts as start_ts,
      LEAD (last_updated_ts, 1, unixepoch ()) OVER (
        ORDER BY
          last_updated_ts
      ) as end_ts,
      datetime (last_updated_ts, 'unixepoch', 'localtime') as last_updated_dt
    FROM
      states
    WHERE
      metadata_id = (
        SELECT
          metadata_id
        FROM
          states_meta
        WHERE
          entity_id = 'sensor.xxxxxxxxxxxxxx'
      )
      AND last_changed_ts IS NULL --Ignore rows when state didnt change
    ORDER BY
      state_id DESC
    LIMIT
      50
  ),
  Durations as (
    SELECT
      state_id,
      state,
      (end_ts - MAX(start_ts, unixepoch () - 60)) as duration,
      datetime (start_ts, 'unixepoch', 'localtime') as start_dt,
      datetime (end_ts, 'unixepoch', 'localtime') as end_dt
    FROM
      StateHistory
    WHERE
      end_ts > unixepoch () - 60
  ),
  Totals as (
    SELECT
      state,
      SUM(duration) as total_duration
    FROM
      Durations
    GROUP BY
      state
  ),
  BestState as (
    SELECT
      state
    FROM
      Totals
    ORDER BY
      total_duration desc
    LIMIT
      1
  )
SELECT
  *
FROM
  BestState