import json
import time
import sys
from hcloud import Client
from hcloud.networks.domain import NetworkSubnet
from hcloud.locations.domain import Location
from hcloud.images.domain import Image
from hcloud.server_types.domain import ServerType


class Client_MS:
    def __init__(self, json_config) -> None:
        self.config = self.load_config(json_config)

        self.client = self.get_client()

        self.ssh_key = self.get_ssh()
        self.network = self.create_network()
        self.volume = self.create_volume()

        self.server_db = self.create_db_server()
        self.server_gitea = self.create_gitea_server()

    def load_config(self, json_config):
        with open(json_config) as json_file:
            return json.load(json_file)

    def get_client(self):
        try:
            return Client(token=self.config["token"])
        except:
            return None

    def get_ssh(self):
        if(self.client.ssh_keys.get_by_name(self.config["ssh_name"])):
            print("SSH_KEY: Key exists.")
            return self.client.ssh_keys.get_by_name(self.config["ssh_name"])
        else:
            print("SSH_KEY: Creating ssh_key.")
            return self.client.ssh_keys.create(name=self.config["ssh_name"], public_key=self.config["ssh_public"])

    def create_network(self):
        if(self.client.networks.get_by_name(self.config["network"])):
            print("NETWORK: Network exists.")
            return self.client.networks.get_by_name(self.config["network"])
        else:
            print("NETWORK: Creating network.")
            return self.client.networks.create(
                name=self.config["network"],
                ip_range=self.config["network-ip"],
                subnets=[
                    NetworkSubnet(ip_range=self.config["network-ip"],
                                  network_zone="eu-central", type="cloud")
                ]
            )

    def create_volume(self):
        if(self.client.volumes.get_by_name(self.config["volume"])):
            print("VOLUME: Volume exists.")
            volume = self.client.volumes.get_by_name(self.config["volume"])
            return volume
        else:
            print("VOLUME: Creating volume.")
            volume = self.client.volumes.create(
                size=10, name=self.config["volume"], location=Location(id=self.config["location"]))
            volume.action.wait_until_finished()
            time.sleep(5)
            return volume

    def create_db_server(self):
        with open("db.yml", "r") as f:
            db_yml = f.read()

        if(self.client.servers.get_by_name(self.config["db-server-name"])):
            print("DB: Server exists.")
            self.server_db = self.client.servers.get_by_name(
                self.config["db-server-name"])
            return self.server_db
        else:
            print("DB: Creating server.")
            self.server_db = self.client.servers.create(
                name=self.config["db-server-name"],
                server_type=ServerType(self.config["server-type"]),
                image=Image(name=self.config["server-image"]),
                ssh_keys=[self.ssh_key],
                networks=[self.network],
                location=Location(self.config["location"]),
                user_data=db_yml)
            return self.server_db

    def create_gitea_server(self):
        with open("gitea.yml", "r") as f:
            gitea_yml = f.read()

        if(self.client.servers.get_by_name(self.config["gitea-server-name"])):
            print("GITEA: Server exists.")
            self.server_gitea = self.client.servers.get_by_name(
                self.config["gitea-server-name"])
            return self.server_gitea
        else:
            print("GITEA: Creating server.")
            self.server_gitea = self.client.servers.create(
                name=self.config["gitea-server-name"],
                server_type=ServerType(self.config["server-type"]),
                image=Image(name=self.config["server-image"]),
                ssh_keys=[self.ssh_key],
                networks=[self.network],
                location=Location(self.config["location"]),
                user_data=gitea_yml,
                volumes=[self.volume]
            )
            return self.server_gitea

    def delete_all(self):
        self.network.delete()
        print("NETWORK: Deleted.")
        w = self.volume.detach()
        w.wait_until_finished()
        self.volume.delete()
        print("VOLUME: Deleted.")
        self.server_db.delete()
        print("DB: Deleted.")
        self.server_gitea.delete()
        print("GITEA: Deleted.")


if __name__ == '__main__':
    if(len(sys.argv) != 2):
        print("Podaj ścieżkę do pliku konfiguracyjnego.")
    else:
        c = Client_MS(sys.argv[1])
        # time.sleep(10)
        # c.delete_all()