from django.utils.translation import gettext_lazy as _

from accounts.const import AutomationTypes
from common.const import ConfirmOrIgnore
from accounts.models import (
    GatheredAccount,
    AccountRisk,
    SecretType,
    AutomationExecution,
)
from django.utils import timezone

from common.const import ConfirmOrIgnore

TYPE_CHOICES = [
    ("ignore", _("Ignore")),
    ("disable_remote", _("Disable remote")),
    ("delete_remote", _("Delete remote")),
    ("delete_both", _("Delete remote")),
    ("add_account", _("Add account")),
    ("change_password_add", _("Change password and Add")),
    ("change_password", _("Change password")),
]


class RiskHandler:
    def __init__(self, asset, username, request=None, risk=""):
        self.asset = asset
        self.username = username
        self.request = request
        self.risk = risk

    def handle(self, tp, risk=""):
        self.risk = risk
        attr = f"handle_{tp}"
        if hasattr(self, attr):
            ret = getattr(self, attr)()
            self.update_risk_if_need(tp)
            return ret
        else:
            raise ValueError(f"Invalid risk type: {tp}")

    def update_risk_if_need(self, tp):
        r = self.get_risk()
        if not r:
            return
        status = (
            ConfirmOrIgnore.ignored if tp == "ignore" else ConfirmOrIgnore.confirmed
        )
        r.details.append({**self.process_detail, "action": tp, "status": status})
        r.status = status
        r.save()

    def get_risk(self):
        r = AccountRisk.objects.filter(asset=self.asset, username=self.username)
        if self.risk:
            r = r.filter(risk=self.risk)
        return r.first()

    def handle_ignore(self):
        GatheredAccount.objects.filter(asset=self.asset, username=self.username).update(status=ConfirmOrIgnore.ignored)
        self.risk = 'ignored'

    def handle_review(self):
        pass

    @property
    def process_detail(self):
        return {
            "datetime": timezone.now().isoformat(),
            "type": "process",
            "processor": str(self.request.user),
        }

    def handle_add_account(self):
        data = {
            "username": self.username,
            "name": self.username,
            "secret_type": SecretType.PASSWORD,
            "source": "collected",
        }
        self.asset.accounts.get_or_create(defaults=data, username=self.username)
        GatheredAccount.objects.filter(asset=self.asset, username=self.username).update(
            present=True, status=ConfirmOrIgnore.confirmed
        )
        self.risk = "new_found"

    def handle_disable_remote(self):
        pass

    def handle_delete_remote(self):
        self._handle_delete(delete="remote")

    def _handle_delete(self, delete="both"):
        asset = self.asset
        execution = AutomationExecution()
        execution.snapshot = {
            "assets": [str(asset.id)],
            "accounts": [{"asset": str(asset.id), "username": self.username}],
            "type": "remove_account",
            "name": "Remove remote account: {}@{}".format(self.username, asset.name),
            "delete": delete,
            "risk": self.risk
        }
        execution.save()
        execution.start()
        return execution.summary

    def handle_delete_both(self):
        self._handle_delete(delete="both")

    def handle_change_password_add(self):
        pass

    def handle_change_password(self):
        asset = self.asset
        execution = AutomationExecution()
        execution.snapshot = {
            "assets": [str(asset.id)],
            "accounts": [self.username],
            "type": AutomationTypes.change_secret,
            "secret_type": "password",
            "secret_strategy": "random",
            "name": "Change account password: {}@{}".format(self.username, asset.name),
        }
        execution.save()
        execution.start()
        return execution.summary