import glob

TEMPLATE = """\
import sys
# Remove current dir from sys.path, otherwise setuptools will peek up our
# module instead of system.
sys.path.pop(0)
from setuptools import setup


setup(name='micropython-%(name)s',
      version='%(version)s',
      description=%(desc)r,
      long_description=%(long_desc)r,
      url='https://github.com/micropython/micropython/issues/405',
      author=%(author)r,
      author_email=%(author_email)r,
      maintainer=%(maintainer)r,
      maintainer_email='micro-python@googlegroups.com',
      license=%(license)r,
      py_modules=['%(name)s'])
"""

DUMMY_DESC = """\
This is a dummy implementation of a module for MicroPython standard library.
It contains zero or very little functionality, and primarily intended to
avoid import errors (using idea that even if an application imports a
module, it may be not using it onevery code path, so may work at least
partially). It is expected that more complete implementation of the module
will be provided later. Please help with the development if you are
interested in this module."""

MICROPYTHON_DEVELS = 'MicroPython Developers'
MICROPYTHON_DEVELS_EMAIL = 'micro-python@googlegroups.com'
CPYTHON_DEVELS = 'CPython Developers'

def parse_metadata(f):
    data = {}
    for l in f:
        l = l.strip()
        k, v = l.split("=", 1)
        data[k] = v
    return data


def write_setup(fname, substs):
    with open(fname, "w") as f:
        f.write(TEMPLATE % substs)


def main():
    for fname in glob.iglob("*/metadata.txt"):
        print(fname)
        with open(fname) as f:
            data = parse_metadata(f)

        module = fname.split("/")[0]
        if data["type"] == "dummy":
            data["author"] = MICROPYTHON_DEVELS
            data["author_email"] = MICROPYTHON_DEVELS_EMAIL
            data["maintainer"] = MICROPYTHON_DEVELS
            data["license"] = "MIT"
            data["desc"] = "Dummy %s module for MicroPython" % module
            data["long_desc"] = DUMMY_DESC
        elif data["type"] == "cpython":
            data["author"] = CPYTHON_DEVELS
            data["maintainer"] = MICROPYTHON_DEVELS
            data["license"] = "Python"
            data["desc"] = "CPython %s module ported to MicroPython" % module
        elif data["type"] == "micropython":
            if "author" not in data:
                data["author"] = MICROPYTHON_DEVELS
            if "maintainer" not in data:
                data["author"] = MICROPYTHON_DEVELS
        else:
            raise NotImplementedError

        data["name"] = module
        write_setup(module + "/setup.py", data)


if __name__ == "__main__":
    main()