X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=plomrogue-server.py;h=5a5bd91c6d5ca8b382e7287b00c936a60d37bd99;hb=f2369d5b5908a9bab6659c8a6272804b50d60ee9;hp=04bc1d699148d960b4d9cf1518cf80e7e6e04505;hpb=6ddf68a935708159d568f3b3dc6fcca3dc27aa89;p=plomrogue

diff --git a/plomrogue-server.py b/plomrogue-server.py
index 04bc1d6..5a5bd91 100755
--- a/plomrogue-server.py
+++ b/plomrogue-server.py
@@ -1,4 +1,9 @@
-import errno, os, time
+import argparse
+import errno
+import os
+import shlex
+import time
+
 
 def setup_server_io(io_db):
     """Fill IO files DB with proper file( path)s. Write process IO test string.
@@ -23,26 +28,79 @@ def setup_server_io(io_db):
     io_db["file_in"].close()
     io_db["file_in"] = open(io_db["path_in"], "r")
 
+
 def cleanup_server_io(io_db):
-    """Close and remove all files in IO files DB."""
-    io_db["file_out"].close()
-    os.remove(io_db["path_out"])
-    io_db["file_in"].close()
-    os.remove(io_db["path_in"])
-    if "file_worldstate" in io_db:                   # This file is only set up 
-        io_db["file_worldstate"].close()             # properly when the game 
-    if os.access(io_db["path_worldstate"], os.F_OK): # world is active, which is
-        os.remove(io_db["path_worldstate"])          # not guaranteed.
+    """Close and remove all files open in IO files DB."""
+    def helper(file_key, path_key):
+        if file_key in io_db:
+            io_db[file_key].close()
+            os.remove(io_db[path_key])
+    helper("file_out", "path_out")
+    helper("file_in", "path_in")
+    helper("file_worldstate", "path_worldstate")
+
+
+def detect_atomic_leftover(path):
+    """Raise explained SystemExit if file is found at path + "_tmp"."""
+    path_tmp = path + "_tmp"
+    msg = "Found file '" + path_tmp + "' that may be a leftover from an " \
+          "aborted previous attempt to write '" + path + "'. Aborting until " \
+          "the matter is resolved by removing it from its current path."
+    if os.access(path_tmp, os.F_OK):
+        raise SystemExit(msg)
+
+
+def obey(cmd, io_db, path_recordfile):
+    """"""
+    print("Input: " + cmd)
+    tokens = shlex.split(cmd)
+    if "QUIT" == tokens[0] and 1 == len(tokens):
+        raise SystemExit("received QUIT command")
+    elif "PING" == tokens[0] and 1 == len(tokens):
+        io_db["file_out"].write("PONG\n")
+    elif "MAKE_WORLD" == tokens[0] and 2 == len(tokens):
+        print("I would generate a new world now, if only I knew how.")
+        record(cmd, path_recordfile)
+    else:
+        print("Invalid command/argument, or bad number of tokens.")
+
+
+def record(cmd, path_recordfile):
+    """Append cmd string plus newline to file at path_recordfile."""
+    file = open(path_recordfile, "a")
+    file.write(cmd + "\n")
+    file.close()
+
+
 
 io_db = {}
 try:
-    print("DUMMY: Obey command-line arguments.")
-    print("DUMMY: Open files.")
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1,
+                        action='store')
+    opts, unknown = parser.parse_known_args()
     setup_server_io(io_db)
-    print("DUMMY: Run game.")
+    # print("DUMMY: Run game.")
+    path_recordfile = "recordfile"
+    path_savefile = "savefile"
+    detect_atomic_leftover(path_savefile)
+    detect_atomic_leftover(path_recordfile)
+    if None != opts.replay:
+        if opts.replay < 1:
+            opts.replay = 1
+        print("Replay mode. Auto-replaying up to turn " + str(opts.replay) +
+              " (if so late a turn is to be found).")
+        if not os.access(path_recordfile, os.F_OK):
+            raise SystemExit("No record file found to replay.")
+    elif os.access(path_savefile, os.F_OK):
+        print(open(path_savefile, "r").read())
+    else:
+        obey("MAKE_WORLD " + str(int(time.time())), io_db, path_recordfile)
+except SystemExit as exit:
+    print("ABORTING: " + exit.args[0])
 except:
-    print("SOMETHING WENT WRONG\n")
+    print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
     raise
 finally:
     cleanup_server_io(io_db)
-    print("DUMMY: (Clean up C heap.)")
+    # print("DUMMY: (Clean up C heap.)")