"""deploy gunicorn"""

import os
import subprocess
# import glob
# import tinnus
from pathlib import Path

# # only imported to get lib directory name
# # tinnus shows the ernad path
import docing
from nitpo import Nitpo

class Deploy(Nitpo):

    def __init__(self, do_verbose=False):
        super().__init__()
        if not self.has_conf('files', 'socket'):
            print("I need a socket file configure")
            quit()
        self.user = os.getlogin()
        self.lib_fudi = os.path.dirname(os.path.abspath(docing.__file__))
        self.nitpo_fudi = os.path.dirname(self.lib_fudi)
        self.bin_fudi = self.nitpo_fudi + '/bin'
        self.js_fudi = self.nitpo_fudi + '/contrib/js'
        self.home_fudi = os.environ['HOME']
        if not self.has_conf('files', 'socket'):
            print("I need a socket file defined")
        self.socket_fufi = self.conf['files']['socket']
        if not self.has_conf('folders', 'web_log'):
            print("I need a socket file defined")
            quit()
        if not self.has_conf('web', 'pathstart'):
            print("I need a web path start Ф[web][pathstart]")
            quit()
        self.pathstart = self.conf['web']['pathstart']
        self.log_dir = self.conf['folders']['web_log']
        ## this is not used yet.
        self.systemd_fudi = self.home_fudi + '/.config/systemd/user'
        self.text = {}
        self.verbose = do_verbose

    def get_socket_text(self):
        text = ''
        text += "[Unit]\nDescription=nitpo socket\n\n[Socket]\n"
        text += f"ListenStream={self.socket_fufi}\n"
        text += "SocketMode=0777\n"
        text += "SocketUser=ernad\n\n"
        text += "[Install]\nWantedBy=sockets.target"
        self.socket_text = text
        return text

    def get_service_text(self, do_root=True):
        text = ''
        text += "[Unit]\nDescription=nitpo service\n"
        text += "Requires=nitpo.socket\nAfter=network.target\n\n"
        text += f'[Service]\nEnvironment="PYTHONPATH={self.lib_fudi}"\n'
        text += "Type=notify\n"
        if do_root:
            text += f"User={self.user}\nGroup={self.user}\n"
        text += "ExecStart=/usr/bin/gunicorn --capture-output"
        text += f" --log-file {self.log_dir}/out"
        text += f" --error-logfile {self.log_dir}/err"
        text += f" --access-logfile {self.log_dir}/log"
        text += f" -c {self.lib_fudi}/guniconf.py server:app\n"
        text += 'ExecReload=/bin/kill -s HUP $MAINPID\n'
        text += "KillMode=mixed\nTimeoutStopSec=5\nPrivateTmp=true\n\n"
        text += "[Install]\nWantedBy=sockets.target"
        self.service_text = text
        return text

    def user_write(self, kind):
        if not os.path.isdir(self.systemd_fudi):
            Path(self.systemd_fudi).mkdir(parents=True, exist_ok=True)
        if kind == 'service':
            text = self.get_service_text(do_root=False)
        elif kind == 'socket':
            text = self.get_socket_text()
        else:
            raise Exception("kind must be 'service' or 'socket'")
        systemd_fufi = self.systemd_fudi + '/nitpo.' + kind
        systemd_file = open(systemd_fufi, 'w')
        systemd_file.write(text)
        systemd_file.close()

    def say_apache(self):
        socket = f"unix:{self.socket_fufi}|http://127.0.1.1/"
        a = '\n## insert into the apache configuration: \n'
        a += f"Alias /js/nitpo.js {self.js_fudi}/web.js\n"
        a += f"ProxyPass /nitpo {socket}\n"
        a += f"ProxyPassReverse {self.pathstart} {socket}\n"
        a += '##'
        print(a)

    def say_systemd(self):
        t = ''
        t += '\n## create /usr/lib/systemd/system/nitpo.socket with\n'
        t += self.get_socket_text()
        t += '\n##\n'
        t += '\n## create /usr/lib/systemd/system/nitpo.service with\n'
        t += self.get_service_text()
        t += '\n##\n\n'
        t += '## Finally, run\n'
        t += 'systemctl daemon-reload ; systemctl enable --now nitpo.socket'
        t += '; systemctl start nitpo.socket'
        t += '\n##'
        print(t)



# print(socket_text)#
#
# quit()
# print(system_text)
# quit()
# subprocess.run("/bin/systemctl --user --now enable nitpo", check=True, shell=True)
# subprocess.run("/bin/systemctl --user --now enable nitpo.socket", check=True, shell=True)
# subprocess.run("/bin/systemctl --user start nitpo.socket", check=True, shell=True)
# subprocess.run("/bin/systemctl --user start nitpo.service", check=True, shell=True)