Add time api and test

api/s21_times.py

@@ -0,0 +1,63 @@
+from .operation import *
+
+TIME_STATISTIC_NONE = 'NONE'
+TIME_STATISTIC_AVERAGED = 'AVERAGED'
+TIME_STATISTIC_MINIMUM = 'MINIMUM'
+TIME_STATISTIC_MAXIMUM = 'MAXIMUM'
+TIME_STATISTIC_RANGE = 'RANGE'
+
+element_schema = {'type': 'str' , 'optional': True , 'readonly': False}
+
+def get_time_schema(name: str) -> dict[str, dict[str, Any]]:
+    return { 'DURATION'           : element_schema,
+             'HYDRAULIC TIMESTEP' : element_schema,
+             'QUALITY TIMESTEP'   : element_schema,
+             'RULE TIMESTEP'      : element_schema,
+             'PATTERN TIMESTEP'   : element_schema,
+             'PATTERN START'      : element_schema,
+             'REPORT TIMESTEP'    : element_schema,
+             'REPORT START'       : element_schema,
+             'START CLOCKTIME'    : element_schema,
+             'STATISTIC'          : element_schema}
+
+
+def get_time(name: str) -> dict[str, Any]:
+    ts = read_all(name, f"select * from times")
+    d = {}
+    for e in ts:
+        d[e['key']] = str(e['value'])
+    return d
+
+
+def set_time(name: str, cs: ChangeSet) -> ChangeSet:
+    raw_old = get_time(name)
+
+    old = {}
+    new = {}
+
+    new_dict = cs.operations[0]
+    schema = get_time_schema(name)
+    for key in schema.keys():
+        if key in new_dict:
+            old[key] = str(raw_old[key])
+            new[key] = str(new_dict[key])
+
+    redo_cs = g_update_prefix | { 'type' : 'time' }
+
+    redo_sql = ''
+    for key, value in new.items():
+        if redo_sql != '':
+            redo_sql += '\n'
+        redo_sql += f"update times set value = '{value}' where key = '{key}';"
+        redo_cs |= { key: value }
+
+    undo_cs = g_update_prefix | { 'type' : 'time' }
+
+    undo_sql = ''
+    for key, value in old.items():
+        if undo_sql != '':
+            undo_sql += '\n'
+        undo_sql += f"update times set value = '{value}' where key = '{key}';"
+        undo_cs |= { key: value }
+
+    return execute_command(name, redo_sql, undo_sql, redo_cs, undo_cs)