#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import os
import sys
from setuptools import setup, find_packages
from setuptools import Command


class MyCommand(Command):
    user_options = []

    def initialize_options(self):
        pass

    def finalize_options(self):
        pass


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

    @staticmethod
    def run():
        python_bin = sys.executable if sys.executable else 'python'
        python_ver = sys.version_info.major
        if python_ver == 2:
            path = os.path.join('env', 'python2')
            symlink_path = os.path.join('env', 'python')
            venv_module = 'virtualenv'
            prompt = '(py2-django) '
        elif python_ver == 3:
            path = os.path.join('env', 'python3')
            symlink_path = os.path.join('env', 'python')
            venv_module = 'venv'
            prompt = 'py3-django'
        else:
            sys.stderr.write('Python {} is not supported.\n'.format(python_ver))
            sys.exit(os.EX_USAGE)

        sys.stdout.write('Creating new python environment in {path}\n'.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 SetupDjangoEnvironment(MyCommand):
    description = 'create a typical installation for developing'

    @staticmethod
    def run():
        # 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-test-admin setup {}'.format(django_project_path)
        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)


setup(
    name='django-test',
    version='1.0',
    description='An example django based web application.',
    url='https://heinzelwelt.de',
    maintainer='Jens Kleineheismann',
    maintainer_email='heinzel@heinzelwelt.de',
    cmdclass={
        'mkpyenv': SetupPythonEnvironment,
        'mkdjangoenv': SetupDjangoEnvironment,
    },
    packages=find_packages(exclude=['tests']),
    include_package_data=True,
    test_suite='tests.test_suite',
    entry_points={
        'console_scripts': [
            'django-test-admin = base.console_scripts.admin:main',
        ],
    },
    install_requires=[
        'coverage',
        'django',
        'django-extensions',
    ],
)