# -*- coding: utf-8 -*-
"""
Network Log Model - Stores HTTP request logs in the database.
"""

import logging
from datetime import timedelta
from urllib.parse import urlparse
from odoo import api, fields, models

_logger = logging.getLogger(__name__)


class NetworkLog(models.Model):
    _name = 'network.log'
    _description = 'Network Traffic Log'
    _order = 'timestamp desc'

    timestamp = fields.Datetime(
        string='Timestamp',
        default=fields.Datetime.now,
        required=True,
        index=True,
    )
    method = fields.Selection([
        ('GET', 'GET'),
        ('POST', 'POST'),
        ('PUT', 'PUT'),
        ('DELETE', 'DELETE'),
        ('PATCH', 'PATCH'),
        ('HEAD', 'HEAD'),
        ('OPTIONS', 'OPTIONS'),
    ], string='Method', required=True, index=True)
    
    url = fields.Char(string='URL', required=True, index=True)
    domain = fields.Char(string='Domain', compute='_compute_domain', store=True, index=True)
    
    is_odoo_call = fields.Boolean(
        string='Odoo External Call',
        default=False,
        index=True,
        help='True if this request was made to an Odoo server',
    )
    
    status_code = fields.Integer(string='Status Code')
    status_type = fields.Selection([
        ('success', 'Success'),
        ('redirect', 'Redirect'),
        ('client_error', 'Client Error'),
        ('server_error', 'Server Error'),
        ('blocked', 'Blocked'),
        ('error', 'Error'),
        ('pending', 'Pending'),
    ], string='Status Type', compute='_compute_status_type', store=True)
    
    response_time = fields.Float(string='Response Time (s)', digits=(10, 4))
    error_message = fields.Text(string='Error Message')
    request_headers = fields.Text(string='Request Headers')
    request_body = fields.Text(string='Request Body')

    @api.depends('url')
    def _compute_domain(self):
        for record in self:
            try:
                parsed = urlparse(record.url or '')
                record.domain = parsed.netloc or 'unknown'
            except Exception:
                record.domain = 'unknown'

    @api.depends('status_code', 'error_message')
    def _compute_status_type(self):
        for record in self:
            if record.error_message:
                if 'blocked' in (record.error_message or '').lower():
                    record.status_type = 'blocked'
                else:
                    record.status_type = 'error'
            elif not record.status_code:
                record.status_type = 'pending'
            elif 200 <= record.status_code < 300:
                record.status_type = 'success'
            elif 300 <= record.status_code < 400:
                record.status_type = 'redirect'
            elif 400 <= record.status_code < 500:
                record.status_type = 'client_error'
            elif record.status_code >= 500:
                record.status_type = 'server_error'
            else:
                record.status_type = 'pending'

    @api.model
    def log_request(self, method, url, is_odoo_call=False, status_code=None, 
                    response_time=None, error_message=None):
        """Create a new network log entry."""
        try:
            vals = {
                'method': method.upper(),
                'url': url[:2048] if url else '',
                'is_odoo_call': is_odoo_call,
                'status_code': status_code,
                'response_time': response_time,
                'error_message': error_message[:4096] if error_message else None,
            }
            return self.sudo().create(vals)
        except Exception as e:
            _logger.warning("Failed to log network request: %s", e)
            return self.browse()

    @api.model
    def clear_old_logs(self, days=7):
        """Delete logs older than specified days."""
        cutoff = fields.Datetime.now() - timedelta(days=days)
        old_logs = self.search([('timestamp', '<', cutoff)])
        count = len(old_logs)
        old_logs.unlink()
        _logger.info("Cleared %d network logs older than %d days", count, days)
        return count

    @api.model
    def clear_all_logs(self):
        """Delete all network logs."""
        count = self.search_count([])
        self.search([]).unlink()
        _logger.info("Cleared all %d network logs", count)
        return count