"""Run dbd2asc on latest glider binary data ({?}bd) files. 

   Usage: python sbd2asc.py glidername filetype

   Inputs:
     glidername [ramses | pelagia]
     filetype [sbd | tbd | dbd | ...]

      input path
         /home/localuser/realtime/{glider}/{filetype}/*.{filetype}
      output path
         /home/localuser/realtime/{glider}/{filetype}asc/*.{filetype}asc

   Example usage:   python dbd2asc.py ramses sbd
         /home/localuser/realtime/ramses/sbd/*.sbd
         all new *.sbd will be processed to  
         /home/localuser/realtime/ramses/sbdasc/*.sbdasc 
      
         
"""

import sys
import os
import glob
import errno
import datetime

if __name__ == "__main__":
    try:
        debug = 0
        glider = sys.argv[1]
        filetype = sys.argv[2]

        local_dir = "/home/localuser/realtime"
        # localuser realtime {glider} (sbd) 
        bd_dir = os.path.join(local_dir, glider, filetype)
        bd_files = glob.glob1(bd_dir, "*." + filetype)
        for idx,f in enumerate(bd_files):
            bd_files[idx] = os.path.splitext(f)[0]
        # localuser realtime {glider} (sbdasc)
        asc_dir = os.path.join(local_dir, glider, filetype + "asc")
        asc_files = glob.glob1(asc_dir, "*." + filetype + "asc")

        for idx,f in enumerate(asc_files):
            asc_files[idx] = os.path.splitext(f)[0]

        
        
        s = set(bd_files) - set(asc_files)
        files = list(s)
        files.sort()
        if files:
            for f in files: 
                infile = os.path.join(bd_dir, f + '.' + filetype)
                dt = datetime.datetime.fromtimestamp(os.stat(infile).st_ctime)
                dt_str = dt.strftime("_%Y_%m_%d_%H%M")
                # datetime string added to outfile name for raw2proc 
                # outfile = os.path.join(asc_dir, f + dt_str + '.' + filetype + 'asc')
                outfile = os.path.join(asc_dir, f + '.' + filetype + 'asc')
                cache_dir = os.path.join(asc_dir, "cache")
                if debug:
                    print infile
                    print outfile
                    
                try:
                    command = "/home/localuser/bin/dbd2asc -c " + cache_dir + " " + infile + " > " + outfile
                    rc = os.system(command)
                    print " ... Processed", outfile
                except OSError:
                    print "dbd2asc return code: " + str(rc)
        else:
            print "Nothing to convert"
    except:
        print __doc__