fix(simulation): use hydraulic timestep

app/services/simulation.py

@@ -28,12 +28,13 @@ import pytz
 import requests
 import time
 from typing import Optional, Tuple
+import app.infra.db.influxdb.api as influxdb_api
 import typing
 import psycopg
 import logging
 import app.services.globals as globals
 import app.services.project_info as project_info
-from app.services.time_api import parse_beijing_time
+from app.services.time_api import parse_beijing_time, parse_clock_duration_seconds
 from app.core.config import get_pgconn_string
 from app.infra.db.timescaledb.internal_queries import (
     InternalQueries as TimescaleInternalQueries,
@@ -756,11 +757,13 @@ def run_simulation(
 
     # 获取水力模拟步长，如’0:15:00‘
     globals.hydraulic_timestep = dic_time["HYDRAULIC TIMESTEP"]
-    # 将时间字符串转换为 timedelta 对象
-    time_obj = datetime.strptime(globals.hydraulic_timestep, "%H:%M:%S")
-    # 转换为分钟浮点数
-    globals.PATTERN_TIME_STEP = float(
-        time_obj.hour * 60 + time_obj.minute + time_obj.second / 60
+    # 转换为分钟浮点数，兼容 EPANET 的 H:MM 和 H:MM:SS 写法
+    globals.PATTERN_TIME_STEP = (
+        parse_clock_duration_seconds(
+            globals.hydraulic_timestep,
+            field_name="HYDRAULIC TIMESTEP",
+        )
+        / 60
     )
     # 对输入的时间参数进行处理
     pattern_start_time = convert_time_format(modify_pattern_start_time)

app/services/time_api.py

@@ -89,6 +89,41 @@ def to_time_range(dt: datetime, delta: float) -> tuple[datetime, datetime]:
 
     return (start_time, end_time)
 
+
+def parse_clock_duration_seconds(clock: str, field_name: str = "duration") -> int:
+    """
+    Parse EPANET-style clock durations into seconds.
+
+    Accepted formats include H:MM, HH:MM, H:MM:SS, and HH:MM:SS.
+    """
+    if not isinstance(clock, str):
+        raise ValueError(f"{field_name} must be a string clock duration.")
+
+    parts = clock.strip().split(":")
+    if len(parts) not in (2, 3):
+        raise ValueError(
+            f"{field_name} must use H:MM or H:MM:SS format, got {clock!r}."
+        )
+
+    try:
+        values = [int(part) for part in parts]
+    except ValueError as exc:
+        raise ValueError(
+            f"{field_name} must contain numeric clock parts, got {clock!r}."
+        ) from exc
+
+    if any(value < 0 for value in values):
+        raise ValueError(f"{field_name} must not contain negative values.")
+
+    hours, minutes = values[0], values[1]
+    seconds = values[2] if len(values) == 3 else 0
+    if minutes >= 60 or seconds >= 60:
+        raise ValueError(
+            f"{field_name} minutes and seconds must be less than 60, got {clock!r}."
+        )
+
+    return hours * 3600 + minutes * 60 + seconds
+
 def parse_beijing_date_range(query_date: str) -> tuple[datetime, datetime]:
     '''
     将一个日期字符串，转换成 start/end 时间段，传进来的日期被认为是北京时间