FIX[BE]: fixing transfer to laying and implement correct fifo stock

internal/database/migrations/20260109145555_move_fifo_fields_from_laying_transfers_to_detail_tables.down.sql

@@ -0,0 +1,79 @@
+-- Rollback: Revert FIFO fields back to laying_transfers from detail tables
+
+-- ============================================================================
+-- PART 1: Remove FIFO columns from detail tables
+-- ============================================================================
+
+-- Add back old qty column first
+ALTER TABLE laying_transfer_sources
+    ADD COLUMN IF NOT EXISTS qty NUMERIC(15, 3) NOT NULL DEFAULT 0;
+
+ALTER TABLE laying_transfer_targets
+    ADD COLUMN IF NOT EXISTS qty NUMERIC(15, 3) NOT NULL DEFAULT 0;
+
+-- Now drop FIFO columns
+ALTER TABLE laying_transfer_sources
+    DROP COLUMN IF EXISTS usage_qty,
+    DROP COLUMN IF EXISTS pending_usage_qty;
+
+ALTER TABLE laying_transfer_targets
+    DROP COLUMN IF EXISTS total_qty,
+    DROP COLUMN IF EXISTS total_used;
+
+-- ============================================================================
+-- PART 2: Add back FIFO columns to laying_transfers table
+-- ============================================================================
+
+-- Add columns back for USABLE role (source warehouse)
+ALTER TABLE laying_transfers
+    ADD COLUMN product_warehouse_id BIGINT,
+    ADD COLUMN pending_usage_qty NUMERIC(15, 3),
+    ADD COLUMN usage_qty NUMERIC(15, 3);
+
+-- Add columns back for STOCKABLE role (destination warehouse)
+ALTER TABLE laying_transfers
+    ADD COLUMN dest_product_warehouse_id BIGINT,
+    ADD COLUMN total_qty NUMERIC(15, 3) DEFAULT 0 NOT NULL,
+    ADD COLUMN total_used NUMERIC(15, 3) DEFAULT 0 NOT NULL;
+
+-- ============================================================================
+-- PART 3: Recreate foreign key constraints
+-- ============================================================================
+
+DO $$
+BEGIN
+    IF EXISTS (SELECT 1 FROM pg_tables WHERE tablename = 'product_warehouses') THEN
+        -- Add source product warehouse FK
+        ALTER TABLE laying_transfers
+            ADD CONSTRAINT fk_laying_transfers_product_warehouse_id
+            FOREIGN KEY (product_warehouse_id)
+            REFERENCES product_warehouses(id)
+            ON DELETE SET NULL;
+
+        -- Add destination product warehouse FK
+        ALTER TABLE laying_transfers
+            ADD CONSTRAINT fk_laying_transfers_dest_product_warehouse_id
+            FOREIGN KEY (dest_product_warehouse_id)
+            REFERENCES product_warehouses(id)
+            ON DELETE SET NULL;
+    END IF;
+END $$;
+
+-- ============================================================================
+-- PART 4: Recreate indexes for performance
+-- ============================================================================
+
+CREATE INDEX idx_laying_transfers_product_warehouse_id
+    ON laying_transfers(product_warehouse_id);
+
+CREATE INDEX idx_laying_transfers_dest_product_warehouse_id
+    ON laying_transfers(dest_product_warehouse_id);
+
+-- ============================================================================
+-- PART 5: Recreate comments for documentation
+-- ============================================================================
+
+COMMENT ON COLUMN laying_transfers.product_warehouse_id IS 'Product warehouse at source (Growing flock) - for USABLE role';
+COMMENT ON COLUMN laying_transfers.dest_product_warehouse_id IS 'Product warehouse at destination (Laying flock) - for STOCKABLE role';
+COMMENT ON COLUMN laying_transfers.total_qty IS 'Total lot quantity introduced to destination warehouse - for STOCKABLE role';
+COMMENT ON COLUMN laying_transfers.total_used IS 'Quantity already consumed from this lot at destination - for FIFO STOCKABLE role';

internal/database/migrations/20260109145555_move_fifo_fields_from_laying_transfers_to_detail_tables.up.sql

@@ -0,0 +1,73 @@
+-- Move FIFO fields from laying_transfers to detail tables (sources & targets)
+-- This enables proper FIFO integration for transfer laying with multiple sources and targets
+
+-- ============================================================================
+-- PART 1: Remove FIFO-related columns from laying_transfers table
+-- ============================================================================
+
+-- Drop foreign key constraints first
+DO $$
+BEGIN
+    -- Drop source product warehouse FK
+    IF EXISTS (
+        SELECT 1 FROM pg_constraint
+        WHERE conname = 'fk_laying_transfers_product_warehouse_id'
+    ) THEN
+        ALTER TABLE laying_transfers
+            DROP CONSTRAINT fk_laying_transfers_product_warehouse_id;
+    END IF;
+
+    -- Drop destination product warehouse FK
+    IF EXISTS (
+        SELECT 1 FROM pg_constraint
+        WHERE conname = 'fk_laying_transfers_dest_product_warehouse_id'
+    ) THEN
+        ALTER TABLE laying_transfers
+            DROP CONSTRAINT fk_laying_transfers_dest_product_warehouse_id;
+    END IF;
+END $$;
+
+-- Drop indexes
+DROP INDEX IF EXISTS idx_laying_transfers_product_warehouse_id;
+DROP INDEX IF EXISTS idx_laying_transfers_dest_product_warehouse_id;
+
+-- Remove columns from laying_transfers
+ALTER TABLE laying_transfers
+    DROP COLUMN IF EXISTS product_warehouse_id,
+    DROP COLUMN IF EXISTS dest_product_warehouse_id,
+    DROP COLUMN IF EXISTS pending_usage_qty,
+    DROP COLUMN IF EXISTS usage_qty,
+    DROP COLUMN IF EXISTS total_qty,
+    DROP COLUMN IF EXISTS total_used;
+
+-- ============================================================================
+-- PART 2: Add FIFO columns to laying_transfer_sources (USABLE role)
+-- ============================================================================
+
+ALTER TABLE laying_transfer_sources
+    ADD COLUMN usage_qty NUMERIC(15, 3) DEFAULT 0 NOT NULL,
+    ADD COLUMN pending_usage_qty NUMERIC(15, 3) DEFAULT 0 NOT NULL;
+
+-- Add comments for documentation
+COMMENT ON COLUMN laying_transfer_sources.usage_qty IS 'Quantity consumed from this source - for FIFO USABLE role';
+COMMENT ON COLUMN laying_transfer_sources.pending_usage_qty IS 'Quantity pending to consume from this source - for FIFO USABLE role';
+
+-- Drop old qty column as it's replaced by usage_qty
+ALTER TABLE laying_transfer_sources
+    DROP COLUMN IF EXISTS qty;
+
+-- ============================================================================
+-- PART 3: Add FIFO columns to laying_transfer_targets (STOCKABLE role)
+-- ============================================================================
+
+ALTER TABLE laying_transfer_targets
+    ADD COLUMN total_qty NUMERIC(15, 3) DEFAULT 0 NOT NULL,
+    ADD COLUMN total_used NUMERIC(15, 3) DEFAULT 0 NOT NULL;
+
+-- Add comments for documentation
+COMMENT ON COLUMN laying_transfer_targets.total_qty IS 'Total lot quantity introduced to this target warehouse - for FIFO STOCKABLE role';
+COMMENT ON COLUMN laying_transfer_targets.total_used IS 'Quantity already consumed from this lot at target warehouse - for FIFO STOCKABLE role';
+
+-- Drop old qty column as it's replaced by total_qty
+ALTER TABLE laying_transfer_targets
+    DROP COLUMN IF EXISTS qty;