Accept Merge Request #99: (api -> master)

Merge Request: Start simulation

Created By: @王琼钰
Accepted By: @王琼钰
URL: https://tjwater.coding.net/p/tjwatercloud/d/TJWaterServer/git/merge/99

epanet/epanet.py

@@ -0,0 +1,43 @@
+import ctypes
+import platform
+import os
+import sys 
+sys.path.append("..") 
+from api import project
+from api import parser
+
+_lib_core = None
+_lib_output = None
+
+def _load_epanet():
+    _platform = platform.system()
+    if _platform != "Windows":
+        raise Exception(f'Platform {_platform} unsupported (not yet)')
+    _lib_core = ctypes.CDLL("./epanet2.dll")
+    #version = ctypes.c_int()
+    #lib_core.EN_getversion(ctypes.byref(version))
+    #print(f'Load EPANET {version}')
+    _lib_output = ctypes.CDLL("./epanet-output.dll")
+
+# readable True => json, False => binary output
+def run_project(name: str, readable: bool = True) -> str:
+    if not project.have_project(name):
+        raise Exception("No such project!")
+
+    dir = os.path.dirname(os.getcwd())
+
+    db_inp = os.path.join(os.path.join(dir, 'db_inp'), name + '.inp')
+    parser.dump_inp(name, db_inp)
+    
+    exe = os.path.join(os.path.join(dir, 'epanet'), 'runepanet.exe')
+    inp = os.path.join(os.path.join(dir, 'db_inp'), name + '.inp')
+    rpt = os.path.join(os.path.join(dir, 'temp'), name + '.rpt')
+    opt = os.path.join(os.path.join(dir, 'temp'), name + '.opt')
+    command = f'{exe} {inp} {rpt} {opt}'
+    #print(command)
+    result = os.system(command)
+    return ''
+
+if __name__ == '__main__':
+    _load_epanet()
+    run_project('net3')