# -*- coding: utf-8 -*-
import logging

from odoo import api, fields, models

# Top-level import (vs lazy inside the method): if the dep is missing — most
# likely because the dev container got recreated and dropped its pip install
# (see CLAUDE.md Workflow) — Odoo crashes at registry load with a clear
# `ModuleNotFoundError`, not deep in the auth path after the first login.
from user_agents import parse as ua_parse

_logger = logging.getLogger(__name__)


class ResUsers(models.Model):
    _inherit = 'res.users'

    @api.model
    def _fc_build_event_vals(
        self,
        result,
        attempted_login,
        failure_reason=None,
        user_id=None,
        _override_ip=None,
        _override_ua=None,
        _credential=None,
    ):
        """Build the dict of values for a fusion.login.audit row.

        Pulls IP / User-Agent from the live HTTP request when available.
        Falls back to ('internal', '<no-request>') for XML-RPC / cron-initiated
        auth, with geo_lookup_state='internal' so the geo cron skips them.

        An empty IP from an otherwise-live request (rare; misconfigured
        reverse proxy) also routes to the 'internal' fallback — an empty
        string isn't useful audit data and is arguably suspicious.

        The _override_* kwargs exist for tests so we don't have to fake a
        full request. They are NOT a public API.

        Password safety: `_credential` MAY contain a 'password' key from the
        Odoo auth flow. We never read that key, never log it, never put it
        in vals. The test `test_build_event_vals_strips_password` locks
        this property in via `assertNotIn(secret, repr(vals))`.
        """
        vals = {
            'attempted_login': (attempted_login or '')[:255],
            'result': result,
            'failure_reason': failure_reason,
            'event_time': fields.Datetime.now(),
            'database': self.env.cr.dbname,
            'user_id': user_id,
        }

        ip = _override_ip
        ua_str = _override_ua

        if ip is None or ua_str is None:
            try:
                from odoo.http import request
                if request and getattr(request, 'httprequest', None):
                    if ip is None:
                        ip = request.httprequest.remote_addr
                    if ua_str is None:
                        ua_str = request.httprequest.user_agent.string or ''
            except Exception:
                _logger.debug("fusion_login_audit: no request context", exc_info=True)

        if ip and ua_str is not None:
            ua_text = ua_str or ''
            vals['ip_address'] = ip[:45]
            vals['user_agent_raw'] = ua_text[:512]
            ua = ua_parse(ua_text)
            vals['browser'] = (f"{ua.browser.family} {ua.browser.version_string}".strip())[:64]
            vals['os'] = (f"{ua.os.family} {ua.os.version_string}".strip())[:64]
            if ua.is_bot:
                vals['device_type'] = 'bot'
            elif ua.is_mobile:
                vals['device_type'] = 'mobile'
            elif ua.is_tablet:
                vals['device_type'] = 'tablet'
            elif ua.is_pc:
                vals['device_type'] = 'desktop'
            else:
                vals['device_type'] = 'unknown'
            vals['geo_lookup_state'] = 'pending'
        else:
            vals['ip_address'] = 'internal'
            vals['user_agent_raw'] = '<no-request>'
            vals['device_type'] = 'unknown'
            vals['geo_lookup_state'] = 'internal'

        # _credential is accepted in the signature so callers (T6 _check_credentials,
        # T7 _login) can hand the dict in without filtering. The helper deliberately
        # touches NO keys from it — see the password-safety note in the docstring.
        # `_credential` is intentionally unread here; the parameter exists so future
        # work can read `credential.get('type')` for `2fa_failed` discrimination
        # only via the explicit failure_reason kwarg, never from the dict directly.
        del _credential  # explicit no-op — locks down the read surface

        return vals