#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os
import subprocess

import utils


def setup(interactive=True):
    # Generate SSH key if not already done
    if not os.path.exists('/root/.ssh/id_rsa'):
        code, out = utils.exec_cmd('ssh-keygen -b 4096 -t rsa -f /root/.ssh/id_rsa -P ""')
        if code != 0:
            raise Exception('Failed to create SSH key: ssh-keygen returned code %s:\n%s' % (code, out))
    with open('/root/.ssh/id_rsa.pub', 'r') as fo:
        public_key = fo.read()
    # Get requests module
    if subprocess.run(['dpkg', '-s', 'python3-requests'], stdout=subprocess.DEVNULL).returncode != 0:
        cmds = [
            'apt-get update',
            'apt-get install -y python3-requests',
        ]
        utils.run_commands(cmds)
    import requests
    # Check skyreach url
    verify = utils.get_conf('SKYREACH_SSL_VERIFY') != '0'
    sk_url = utils.get_conf('SKYREACH_HOST')
    if not sk_url:
        raise Exception('No URL defined to contact Panel / Skyreach.')
    sk_url = 'https://' + sk_url
    req = requests.head(sk_url, verify=verify, timeout=20)
    if req.status_code != 301:
        raise Exception('Unexpected response from "%s": code %s, should have been 301.' % (sk_url, req.status_code))
    # Get conf using API key if already set or using an activation key
    req = None
    api_key = utils.get_conf('SKYREACH_API_KEY')
    if api_key:
        req = requests.post(sk_url + '/erp/credentials/envsetup-conf.sh', params=dict(api_key=api_key), data=dict(public_key=public_key), verify=verify, timeout=20)
    else:
        act_key = utils.get_conf('SKYREACH_ACTIVATION_KEY')
        if act_key:
            req = requests.post(sk_url + '/erp/credentials/envsetup-conf.sh', data=dict(key=act_key, public_key=public_key), verify=verify, timeout=20)
    if req is None:
        utils.log('\033[1;33m No activation key nor API key are set, skipping configuration download. \033[0m')
        return
    # Write conf
    if req.status_code != 200:
        if len(req.text) > 300:
            with open('/tmp/envsetup-conf-dl.txt', 'w') as fo:
                fo.write(req.text)
            raise Exception('Request on "%s" failed with status %s. Full response content available in "/tmp/envsetup-conf-dl.txt".' % (req.url, req.status_code))
        else:
            raise Exception('Request on "%s" failed with status %s. Response: "%s".' % (req.url, req.status_code, req.text))
    path = os.path.join(os.path.dirname(os.path.dirname(utils.get_dir(__file__))), 'auto-generated-conf.sh')
    utils.log('Configuration path: %s' % path)
    with open(path, 'w') as fo:
        fo.write(req.text)
    utils.log('Configuration written.')

    utils.log('Comment activation key in conf.sh')
    path = os.path.join(os.path.dirname(os.path.dirname(utils.get_dir(__file__))), 'conf.sh')
    with open(path, 'r') as fo:
        content = fo.read()
    content = content.replace('SKYREACH_ACTIVATION_KEY', '#SKYREACH_ACTIVATION_KEY').replace('##SKYREACH_ACTIVATION_KEY', '#SKYREACH_ACTIVATION_KEY')
    with open(path, 'w') as fo:
        fo.write(content)

    utils.log('Autogenerate empty conf.')
    cmds = [
        'bash fill_empty_conf.sh',
    ]
    utils.run_commands(cmds)