#!/usr/bin/env python

from __future__ import print_function
import argparse
import tempfile
import shutil
import os
import glob
import subprocess
import shlex


def get_files(xsd_dir):
    print("Searching ", xsd_dir)
    files = []
    for path, subdirs, fns in os.walk(xsd_dir):
        for fn in fns:
            if fn.endswith('xsd'):
                files.append(os.path.join(path, fn))
    return files

def copy_xsds(xsd, dest):
    """Go ahead and copy all xsds, there will likely be many dependencies. If
    not, xsds are small"""
    files = get_files(os.path.dirname(xsd))
    print("Copying:")
    for f in files:
        print(f)
    for fn in files:
        shutil.copy(fn, dest)

def generate_pyxb(xsd, outdir, modname):
    cmd = "pyxbgen -u {x} -m {m} --binding-root {p}".format(x=xsd, m=modname,
                                                            p=outdir)
    print(cmd)
    subprocess.call(shlex.split(cmd))

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("xsd", type=str,
                        help="the XSD of interest")
    parser.add_argument("outdir", type=str)
    parser.add_argument("--mod-name", type=str,
                        default='DataSetXsd')
    args = parser.parse_args()
    tempd = tempfile.mkdtemp(suffix='xsds')
    copy_xsds(args.xsd, tempd)
    xsd_name = os.path.basename(args.xsd)
    generate_pyxb(os.path.join(tempd, xsd_name), args.outdir, args.mod_name)
    shutil.rmtree(tempd)
    print("please view commit b7ef4238b63 for additional diffs required for python3 support")
