add: main.py for the main program

Author: TheEnderek0

src/main.py

@@ -0,0 +1,86 @@
+"""Houses the main program file"""
+
+from pycaptioncompiler import Subtitles
+from pcslogger import Logger, Level
+from sys import argv
+import argparse
+from pathlib import Path
+
+LOG_LEVEL = Level.DEBUG
+LOG_PATH = Path(argv[0]).with_name("pycaptioncompiler.log")
+AppLogger = None
+
+def main():
+    parser = argparse.ArgumentParser(
+        "Caption Compiler",
+        description="Caption compiler program remade in python, for Source Engine games."
+    )
+
+    parser.add_argument(
+        "-v", "--verbose",
+        help="Be verbose, log more information.",
+        action="store_true",
+        dest="verbose",
+    )
+
+    parser.add_argument(
+        "-o", "--output",
+        help="Output directory. Not required, if not specified, output file will be in the same location as the source file.",
+        dest="outpath",
+        required=False,
+        default=None
+    )
+
+    parser.add_argument(
+        "source_file",
+        help="The source file housing given subtitles."
+    )
+
+    result = parser.parse_args(argv[1:])
+
+    global AppLogger
+    AppLogger = Logger.RegisterMainApplication("Caption Compiler", result.verbose, LOG_LEVEL, True)
+
+    Logger.EnableFileLogging(LOG_PATH)
+
+    AppLogger.Info("Caption Compiler, Welcome!")
+    AppLogger.Info(f"Verbose: {result.verbose}")
+    AppLogger.VInfo(f"Logging to: {LOG_PATH}")
+    
+    INFILE = Path(result.source_file).absolute()
+    if not INFILE.is_file():
+        AppLogger.Error(f"Specified file ({INFILE}) does not exist!")
+        raise FileNotFoundError
+
+
+    OUTPATH = None
+    if result.outpath:
+        OUTPATH = Path(result.outpath).resolve()
+        if not OUTPATH.is_dir():
+            AppLogger.Warning(f"Specified output directory ({OUTPATH}) does not exist. Creating...")
+            OUTPATH.mkdir(parents=True)
+        
+        OUTPATH = OUTPATH / INFILE.with_suffix(".dat").name
+
+    else:
+        OUTPATH = INFILE.with_suffix(".dat")        
+
+
+    AppLogger.Info(f"INFILE: {INFILE}")
+    AppLogger.Info(f"OUTFILE: {OUTPATH}")
+
+    AppLogger.Info("Starting compile...")
+
+    Subtitles_ = Subtitles.from_path(INFILE)
+
+    fbytes = Subtitles_.serialize()
+    
+    AppLogger.Info("Finished. Saving results...")
+    AppLogger.VInfo(f"Writing to file: {OUTPATH}")
+
+    with open(OUTPATH, "wb") as f:
+        f.write(fbytes)
+
+    AppLogger.Info("Done.")
+
+main()