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#!/usr/bin/python2

'''
SYNOPSIS:

$ python speedup.py -f FILE
or
$ python speedup.py -d DIR
'''

import sys, os, getopt
 
TARGET_TYPE = [".md", ".markdown"]
 
def process_file(path):
    ''' Process a file. '''
    line = ""
    quote_flag = False
    line_list = []
    with open(path) as f:       
        while True:
            line = f.readline()
            if line == "":
                break
            if line.startswith("```"):
                quote_flag = not quote_flag
            if line.strip()=="```" and quote_flag:
                line = "``` plain\r\n"
            line_list.append(line)
    with open(path, 'w+') as f:
        f.writelines(line_list)
 
 
def process_dir(path):
    ''' Process a directory. '''
    file_list = []
    files = os.listdir(path)
    for file in files:
        file = os.path.join(path, file)
        root, ext = os.path.splitext(os.path.basename(file))
        if os.path.isfile(file) and ext in TARGET_TYPE:
            process_file(file)
 
 
def main():
    if len(sys.argv) < 2:
        print "Arguments should be at least 2."
        print "python speedup.py -f [FILE]"
        print "python speedup.py -d [DIRECTORY]"
        exit(1)
 
    try:
        opts, args = getopt.getopt(sys.argv[1:], "f:d:", ["file=", "directory="])
        for arg, value in opts:
            if arg in ('-f', '--file'):
                root, ext = os.path.basename(value)
                if ext in 'TARGET_TYPE':
                    process_file(value)
            elif arg in ('-d', '--directory'):
                process_dir(value)
            else:
                print "Argument error. %s" % arg
                exit(1)
    except getopt.GetoptError as e:
        print e
        exit(1)
 
 
if __name__ == '__main__':
    main()