feat: Stream real-time status updates during equipment processing, enhance prediction robustness by validating asset data, and remove `await` from EAC calculation calls.

src/equipment/router.py

@@ -82,12 +82,17 @@ async def simulate_equipment(db_session: DbSession, assetnum: str):
     """
 
     async def event_generator():
+        # notify start of checking
+        yield f"data: {json.dumps({'status':'started','step':'checking update','message':'Checking and updating initial data'})}\n\n"
+
         try:
              await update_initial_simulation_data(db_session=db_session, assetnum=assetnum)
+             yield f"data: {json.dumps({'status':'completed','step':'checking update','message':'Initial data check completed'})}\n\n"
         except Exception as e:
              # Log error but proceed? Or maybe yield an error? 
              # For now, we proceed as this is an enhancement check.
              print(f"Update simulation data failed: {e}")
+             yield f"data: {json.dumps({'status':'error','step':'checking update','message':f'Update simulation data failed: {str(e)}'})}\n\n"
 
         # notify start of prediksi
         yield f"data: {json.dumps({'status':'started','step':'prediksi','message':'Starting prediksi'})}\n\n"
@@ -106,7 +111,7 @@ async def simulate_equipment(db_session: DbSession, assetnum: str):
         yield f"data: {json.dumps({'status':'started','step':'eac','message':'Starting EAC calculation'})}\n\n"
         try:
             eac = Eac()
-            hasil_eac = await eac.hitung_eac_equipment(assetnum=assetnum)
+            hasil_eac = eac.hitung_eac_equipment(assetnum=assetnum)
         except Exception as exc:
             yield f"data: {json.dumps({'status':'error','step':'eac','message':str(exc)})}\n\n"
             return
@@ -157,7 +162,7 @@ async def simulate_all_equipment(db_session: DbSession):
                 await prediksi_main(assetnum=assetnum)
                 # EAC
                 eac = Eac()
-                await eac.hitung_eac_equipment(assetnum=assetnum)
+                eac.hitung_eac_equipment(assetnum=assetnum)
                 success_count += 1
             except Exception as e:
                 error_count += 1

src/modules/equipment/Prediksi.py

@@ -712,8 +712,12 @@ class Prediksi:
             # Mendapatkan tahun proyeksi dari DB
             par_tahun_target = self.__get_param(assetnum)
             
+            if par_tahun_target is None:
+                raise ValueError(f"Asset {assetnum} not found in master data (lcc_ms_equipment_data).")
+
             # Tahun proyeksi
-            future_years = list(range(df["year"].max() + 1, par_tahun_target + 1))
+            current_max_year = int(df["year"].max()) if not df.empty and not pd.isna(df["year"].max()) else 2024
+            future_years = list(range(current_max_year + 1, int(par_tahun_target) + 1))
             print("future_years", future_years)
             # Hasil prediksi
             predictions = {"year": future_years}