feat: sync latest ARR implementation

database/014_booking_current_source_batch.sql

@@ -0,0 +1,118 @@
+-- Add one explicit active Booking source batch for full-workbook replacement imports.
+-- PostgreSQL 15+. Migrations 008-013 remain immutable.
+
+BEGIN;
+
+DO $$
+BEGIN
+    IF current_database() <> 'booking_test' THEN
+        RAISE EXCEPTION
+            'ARR Booking current-source migration is allowed only in booking_test';
+    END IF;
+    IF to_regclass('booking.source_batches') IS NULL
+       OR to_regclass('booking.current_row_parses') IS NULL
+       OR NOT EXISTS (
+           SELECT 1
+           FROM information_schema.columns
+           WHERE table_schema = 'ingestion'
+             AND table_name = 'processing_runs'
+             AND column_name = 'uploaded_filename'
+       ) THEN
+        RAISE EXCEPTION
+            'ARR migrations 008 through 013 must be applied first';
+    END IF;
+    IF to_regclass('booking.current_source_batch') IS NOT NULL THEN
+        RAISE EXCEPTION
+            'ARR Booking current-source migration is already applied';
+    END IF;
+END;
+$$;
+
+CREATE TABLE booking.current_source_batch (
+    singleton boolean PRIMARY KEY DEFAULT true CHECK (singleton),
+    source_batch_id bigint NOT NULL UNIQUE
+        REFERENCES booking.source_batches(id),
+    activated_at timestamptz NOT NULL DEFAULT now()
+);
+
+COMMENT ON TABLE booking.current_source_batch IS
+  'Singleton pointer to the one accepted full Booking source batch used by Finance matching and company reports.';
+
+CREATE OR REPLACE FUNCTION booking.validate_current_source_batch()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1
+        FROM booking.source_batches AS batch
+        WHERE batch.id = NEW.source_batch_id
+          AND batch.batch_status = 'accepted'
+    ) THEN
+        RAISE EXCEPTION
+            'current Booking source must reference an accepted source batch';
+    END IF;
+    RETURN NEW;
+END;
+$$;
+
+CREATE TRIGGER current_source_batch_acceptance_guard
+BEFORE INSERT OR UPDATE ON booking.current_source_batch
+FOR EACH ROW
+EXECUTE FUNCTION booking.validate_current_source_batch();
+
+INSERT INTO booking.current_source_batch (
+    singleton,
+    source_batch_id,
+    activated_at
+)
+SELECT
+    true,
+    accepted.id,
+    COALESCE(accepted.finished_at, accepted.validated_at, accepted.created_at)
+FROM booking.source_batches AS accepted
+WHERE accepted.batch_status = 'accepted'
+ORDER BY
+    accepted.finished_at DESC NULLS LAST,
+    accepted.id DESC
+LIMIT 1;
+
+CREATE OR REPLACE VIEW booking.v_current_room_items AS
+SELECT
+    source.id AS source_row_id,
+    source.source_batch_id,
+    source.source_worksheet,
+    source.source_row_no,
+    source.group_code_raw,
+    source.group_code_key,
+    source.type_of_room_raw,
+    source.no_of_rooms AS source_no_of_rooms,
+    parsed.id AS parse_version_id,
+    parsed.version_no AS parse_version_no,
+    item.item_no,
+    item.room_type_raw,
+    item.room_type_code,
+    item.quantity,
+    item.unit_price,
+    item.currency_code,
+    item.price_token_raw,
+    item.source_fragment
+FROM booking.current_source_batch AS active_source
+JOIN booking.source_rows AS source
+  ON source.source_batch_id = active_source.source_batch_id
+JOIN booking.current_row_parses AS current_parse
+  ON current_parse.source_row_id = source.id
+JOIN booking.parse_versions AS parsed
+  ON parsed.id = current_parse.parse_version_id
+JOIN booking.source_batches AS batch
+  ON batch.id = source.source_batch_id
+JOIN booking.room_items AS item
+  ON item.parse_version_id = parsed.id
+WHERE active_source.singleton
+  AND batch.batch_status = 'accepted'
+  AND parsed.parse_status = 'accepted';
+
+COMMENT ON VIEW booking.v_current_room_items IS
+  'Accepted room items from the one active full Booking source batch; historical batches remain immutable but inactive.';
+
+COMMIT;