#!/usr/bin/python

import os
import sys
import json
import yaml


def die(msg, *args):
    sys.stderr.write(msg + '\n', *args)
    sys.exit(99)


def emit(datum, root='./'):
    if type(datum) is not dict:
        die("Unexpected type: {0} of type {1}", datum, type(datum))
    else:
        for key, val in datum.items():
            if type(val) is dict:
                new_root = os.path.join(root, key)
                os.makedir(new_root)
                emit(val, root=new_root)
            elif type(val) is list:
                die("Cannot serialize lists: {0}", datum)
            elif type(val) is str or type(val) is unicode:
                with open(os.path.join(root, key), 'w') as f:
                    f.write(val)
                    f.write('\n')
            else:
                with open(os.path.join(root, key), 'w') as f:
                    json.dump(val, f)
                    f.write('\n')

if __name__ == '__main__':
    if sys.argv[:1] and sys.argv[1] != '-':
        with open(sys.argv[1]) as f:
            datum = yaml.load(f)
    else:
        datum = yaml.load(sys.stdin)
    emit(datum)