feat: Implement historical data archiving for equipment when acquisition year or cost is updated.

src/equipment/service.py

@@ -694,30 +694,104 @@ async def update_initial_simulation_data(db_session: DbSession, assetnum: str):
             current_acq = eq.acquisition_year
             current_life = eq.design_life
             current_target = eq.forecasting_target_year
+            current_acq_cost = eq.acquisition_cost
             
             # If current_target is logically "default", we update it.
-            # If user changed it to something else, we might want to preserve it?
+            # If user changed it to something else, we might want to preserve it
-            # User request: "must be default acquisition_year+design_life if not changes"
+            # if it currently holds the default value (based on old acq year).
-            # We interpret "if not changes" as: if it currently holds the default value (based on old acq year).
             is_valid_default = False
             if current_acq and current_life and current_target:
                 is_valid_default = current_target == (current_acq + current_life)
             
-            updates_needed = False
+            # Check for changes
-            
+            change_year = (eq.acquisition_year != first_year)
-            # Update acquisition_cost
+            change_cost = (first_cost is not None and eq.acquisition_cost != first_cost)
+            
+            if change_year or change_cost:
+                print(f"Acquisition change detected for {assetnum}: Year {current_acq}->{first_year}, Cost {current_acq_cost}->{first_cost}. Archiving history.")
+                
+                acq_year_ref = f"{current_acq}_{current_target}"
+
+                # --- ARCHIVE HISTORICAL DATA ---
+                
+                # 1. Copy old equipment master data to history
+                history_ms_query = text("""
+                INSERT INTO lcc_ms_equipment_historical_data (
+                    id, assetnum, acquisition_year, acquisition_cost, capital_cost_record_time, design_life,
+                    forecasting_start_year, forecasting_target_year, manhours_rate, created_at, created_by,
+                    updated_at, updated_by, min_eac_info, harga_saat_ini, minimum_eac_seq, minimum_eac_year,
+                    minimum_eac, minimum_npv, minimum_pmt, minimum_pmt_aq_cost, minimum_is_actual,
+                    efdh_equivalent_forced_derated_hours, foh_forced_outage_hours, category_no, proportion,
+                    acquisition_year_ref
+                )
+                SELECT 
+                    uuid_generate_v4(), assetnum, acquisition_year, acquisition_cost, capital_cost_record_time, design_life,
+                    forecasting_start_year, forecasting_target_year, manhours_rate, created_at, created_by,
+                    updated_at, updated_by, min_eac_info, harga_saat_ini, minimum_eac_seq, minimum_eac_year,
+                    minimum_eac, minimum_npv, minimum_pmt, minimum_pmt_aq_cost, minimum_is_actual,
+                    efdh_equivalent_forced_derated_hours, foh_forced_outage_hours, category_no, proportion,
+                    :acq_year_ref
+                FROM lcc_ms_equipment_data
+                WHERE assetnum = :assetnum
+                """)
+                await db_session.execute(history_ms_query, {"acq_year_ref": acq_year_ref, "assetnum": assetnum})
+                
+                # 2. Copy old transaction data to lcc_equipment_historical_tr_data
+                # Format: {acquisition_year}_{forecasting_target_year}
+                
+                history_tr_query = text("""
+                INSERT INTO lcc_equipment_historical_tr_data (
+                    id, assetnum, tahun, seq, is_actual,
+                    raw_cm_interval, raw_cm_material_cost, raw_cm_labor_time, raw_cm_labor_human,
+                    raw_pm_interval, raw_pm_material_cost, raw_pm_labor_time, raw_pm_labor_human,
+                    raw_oh_interval, raw_oh_material_cost, raw_oh_labor_time, raw_oh_labor_human,
+                    raw_predictive_interval, raw_predictive_material_cost, raw_predictive_labor_time, raw_predictive_labor_human,
+                    raw_project_task_material_cost, raw_loss_output_MW, raw_loss_output_price,
+                    raw_operational_cost, raw_maintenance_cost,
+                    rc_cm_material_cost, rc_cm_labor_cost,
+                    rc_pm_material_cost, rc_pm_labor_cost,
+                    rc_oh_material_cost, rc_oh_labor_cost,
+                    rc_predictive_labor_cost,
+                    rc_project_material_cost, rc_lost_cost, rc_operation_cost, rc_maintenance_cost,
+                    rc_total_cost,
+                    eac_npv, eac_annual_mnt_cost, eac_annual_acq_cost, eac_disposal_cost, eac_eac,
+                    efdh_equivalent_forced_derated_hours, foh_forced_outage_hours,
+                    created_by, created_at, acquisition_year_ref
+                )
+                SELECT 
+                    uuid_generate_v4(), assetnum, tahun, seq, is_actual,
+                    raw_cm_interval, raw_cm_material_cost, raw_cm_labor_time, raw_cm_labor_human,
+                    raw_pm_interval, raw_pm_material_cost, raw_pm_labor_time, raw_pm_labor_human,
+                    raw_oh_interval, raw_oh_material_cost, raw_oh_labor_time, raw_oh_labor_human,
+                    raw_predictive_interval, raw_predictive_material_cost, raw_predictive_labor_time, raw_predictive_labor_human,
+                    raw_project_task_material_cost, raw_loss_output_MW, raw_loss_output_price,
+                    raw_operational_cost, raw_maintenance_cost,
+                    rc_cm_material_cost, rc_cm_labor_cost,
+                    rc_pm_material_cost, rc_pm_labor_cost,
+                    rc_oh_material_cost, rc_oh_labor_cost,
+                    rc_predictive_labor_cost,
+                    rc_project_material_cost, rc_lost_cost, rc_operation_cost, rc_maintenance_cost,
+                    rc_total_cost,
+                    eac_npv, eac_annual_mnt_cost, eac_annual_acq_cost, eac_disposal_cost, eac_eac,
+                    efdh_equivalent_forced_derated_hours, foh_forced_outage_hours,
+                    created_by, NOW(), :acq_year_ref
+                FROM lcc_equipment_tr_data
+                WHERE assetnum = :assetnum
+                """)
+                await db_session.execute(history_tr_query, {"acq_year_ref": acq_year_ref, "assetnum": assetnum})
+                
+                # 3. Delete old data 
+                del_query = text("DELETE FROM lcc_equipment_tr_data WHERE assetnum = :assetnum")
+                await db_session.execute(del_query, {"assetnum": assetnum})
+                
+                # Update Equipment Master
                 if first_cost is not None and eq.acquisition_cost != first_cost:
                     eq.acquisition_cost = first_cost
-                updates_needed = True
 
-            # Update acquisition_year
                 if eq.acquisition_year != first_year:
                     eq.acquisition_year = first_year
-                updates_needed = True
-                
                     if is_valid_default and current_life:
                         eq.forecasting_target_year = first_year + current_life
                 
-            if updates_needed:
                 await db_session.commit()
                 # await db_session.refresh(eq)