Add additional, optional arguments to metadata files

closes #9517

freqtrade/data/btanalysis.py

@@ -183,7 +183,13 @@ def _extract_backtest_result(filename: Path) -> List[BacktestHistoryEntryType]:
             'strategy': s,
             'run_id': v['run_id'],
             'notes': v.get('notes', ''),
+            # Backtest "run" time
             'backtest_start_time': v['backtest_start_time'],
+            # Backtest timerange
+            'backtest_start_ts': v.get('backtest_start_ts', None),
+            'backtest_end_ts': v.get('backtest_end_ts', None),
+            'timeframe': v.get('timeframe', None),
+            'timeframe_details': v.get('timeframe_details', None),
         } for s, v in metadata.items()
     ]
 

freqtrade/optimize/optimize_reports/optimize_reports.py

@@ -561,6 +561,10 @@ def generate_backtest_stats(btdata: Dict[str, DataFrame],
         metadata[strategy] = {
             'run_id': content['run_id'],
             'backtest_start_time': content['backtest_start_time'],
+            'timeframe': content['config']['timeframe'],
+            'timeframe_detail': content['config'].get('timeframe_detail', None),
+            'backtest_start_ts': int(min_date.timestamp()),
+            'backtest_end_ts': int(max_date.timestamp()),
         }
         result['strategy'][strategy] = strat_stats
 

freqtrade/rpc/api_server/api_schemas.py

@@ -538,6 +538,10 @@ class BacktestHistoryEntry(BaseModel):
     run_id: str
     backtest_start_time: int
     notes: Optional[str] = ''
+    backtest_start_ts: Optional[int] = None
+    backtest_end_ts: Optional[int] = None
+    timeframe: Optional[str] = None
+    timeframe_detail: Optional[str] = None
 
 
 class BacktestMetadataUpdate(BaseModel):