#!/usr/bin/env python
import os
import posix
import sys
from setuptools import setup, find_packages
from setuptools import Command


class SetupPythonEnvironment(Command):
    description = 'create a (virtual) python environment'

    def run(self):
        python_bin = sys.executable if sys.executable else 'python'
        python_major_ver = sys.version_info.major
        python_minor_ver = sys.version_info.minor
        if python_major_ver == 3:
            dirname = 'python%i.%i' % (python_major_ver, python_minor_ver)
            path = os.path.join('env', dirname)
            symlink_path = os.path.join('env', 'python')
            venv_module = 'venv'
            prompt = 'py%i.%i-dav' % (python_major_ver, python_minor_ver)
        else:
            sys.stderr.write('Python %d is not supported.\n' % python_major_ver)
            sys.exit(posix.EX_USAGE)

        print('Creating new python environment in {path}'.format(path=path))
        cmd = ('{bin} -m {venv_module}'
               ' --prompt="{prompt}"'
               ' {path}'.format(bin=python_bin, path=path,
                                venv_module=venv_module, prompt=prompt))
        os.system(cmd)

        if symlink_path and not os.path.exists(symlink_path):
            symlink_dir = os.path.dirname(symlink_path)
            relpath = os.path.relpath(path, symlink_dir)
            os.symlink(relpath, symlink_path)

        print('')
        print('Depending on your operating system or command shell,')
        print('you should activate the new environment for this shell session')
        print('by running ONE of the following commands:')
        print('- Windows:    %s' % os.path.join(path, 'Scripts', 'activate'))
        print('- C Shell:    source %s/bin/activate.csh' % path)
        print('- All others: source %s/bin/activate' % path)


class QuickSetup(Command):
    description = 'create a typical installation for developing'

    def run(self):
        python_bin = sys.executable if sys.executable else 'python'
        django_project_path = 'env/django'
        mgmt_script = os.path.join(django_project_path, 'manage.py')

        sys.stdout.write('Install distribution in development mode...\n')
        cmd = 'pip install -e .'
        os.system(cmd)

        sys.stdout.write('Setup django project in {}...\n'.format(django_project_path))
        cmd = 'django-dav-admin setup {}'.format(django_project_path)
        os.system(cmd)

        sys.stdout.write('Enable modules...\n')
        modules = ['dav_auth', 'dav_events', 'dav_registration']
        for m in modules:
            cmd = '{bin} {mgmt} enable_module {module}'.format(bin=python_bin,
                                                               mgmt=mgmt_script,
                                                               module=m)
            os.system(cmd)

        sys.stdout.write('Make database migrations...\n')
        cmd = '{bin} {mgmt} makemigrations'.format(bin=python_bin, mgmt=mgmt_script)
        os.system(cmd)

        sys.stdout.write('Create database...\n')
        cmd = '{bin} {mgmt} migrate'.format(bin=python_bin, mgmt=mgmt_script)
        os.system(cmd)

        sys.stdout.write('Create superuser \'root\'...\n')
        cmd = ('{bin} {mgmt} createsuperuser'
               ' --username root').format(bin=python_bin, mgmt=mgmt_script)
        os.system(cmd)


def get_long_description():
    path = os.path.abspath(os.path.dirname(__file__))
    file = os.path.join(path, 'README.rst')
    with open(file) as f:
        return f.read()


setup(
    name='django-dav-events',
    version='2.2.1',
    description='A django based web application project to drive the Touren- & Kurseportal of DAV Karlsruhe.',
    long_description=get_long_description(),
    long_description_content_type='text/x-rst',
    url='https://dev.heinzelwerk.de/git/DAV-KA/django-dav-events',
    author='Jens Kleineheismann',
    author_email='heinzel@alpenverein-karlsruhe.de',
    cmdclass={
        'mkpyenv': SetupPythonEnvironment,
        'quickdev': QuickSetup,
    },
    packages=find_packages(),
    include_package_data=True,
    entry_points={
        'console_scripts': [
            'django-dav-admin = dav_base.console_scripts.admin:main',
        ],
    },
)