add SQL query for hourly energy consumption analysis

libs/common/src/sql/queries/fact_hourly_energy_consumed/fact_hourly_energy_consumed_api.sql

@@ -0,0 +1,62 @@
+WITH params AS (
+  SELECT
+    'd72f3d5d-02e5-4a9e-a1f7-7ab8c3534910'::uuid AS device_id,
+    NULL::date AS input_date,  -- e.g., '2025-03-07'
+    NULL::text AS event_month, -- e.g., '03-2025'
+    '2025'::text AS event_year, -- e.g., '2025'
+    NULL::int AS hour,
+    NULL::int AS min_kw
+),
+
+log_data AS (
+  SELECT 
+    log.device_id,
+    log.event_time::date AS date,
+    EXTRACT(HOUR FROM log.event_time)::int AS hour,
+    TO_CHAR(log.event_time, 'MM-YYYY') AS month,
+    TO_CHAR(EXTRACT(YEAR FROM log.event_time), 'FM9999') AS year,
+    log.code,
+    log.value::numeric AS value
+  FROM "device-status-log" log, params
+  WHERE (params.device_id IS NULL OR log.device_id = params.device_id)
+    AND (params.event_year IS NULL OR TO_CHAR(EXTRACT(YEAR FROM log.event_time), 'FM9999') = params.event_year)
+    AND (params.event_month IS NULL OR TO_CHAR(log.event_time, 'MM-YYYY') = params.event_month)
+    AND (params.input_date IS NULL OR log.event_time::date = params.input_date)
+),
+
+base_data AS (
+  SELECT 
+    device_id,
+    CASE 
+      WHEN (SELECT input_date FROM params) IS NOT NULL THEN date::text
+      WHEN (SELECT event_month FROM params) IS NOT NULL THEN date::text
+      ELSE month
+    END AS group_by_field,
+    CASE 
+      WHEN (SELECT input_date FROM params) IS NOT NULL THEN hour
+      ELSE NULL
+    END AS hour,
+    code,
+    MIN(value)::int AS min_value,
+    MAX(value)::int AS max_value
+  FROM log_data
+  GROUP BY 1,2,3,4
+),
+
+pivoted AS (
+  SELECT 
+    device_id,
+    group_by_field,
+    hour,
+    MAX(CASE WHEN code = 'EnergyConsumed' THEN max_value - min_value END) AS energy_consumed_kw,
+    MAX(CASE WHEN code = 'EnergyConsumedA' THEN max_value - min_value END) AS energy_consumed_a,
+    MAX(CASE WHEN code = 'EnergyConsumedB' THEN max_value - min_value END) AS energy_consumed_b,
+    MAX(CASE WHEN code = 'EnergyConsumedC' THEN max_value - min_value END) AS energy_consumed_c
+  FROM base_data
+  GROUP BY 1,2,3
+)
+
+SELECT *
+FROM pivoted, params
+WHERE (params.min_kw IS NULL OR energy_consumed_kw >= params.min_kw)
+ORDER BY pivoted.group_by_field, pivoted.hour;