import logging

from odoo import api, fields, models

_logger = logging.getLogger(__name__)

SUCCESS_RETENTION_DAYS = 30
ERROR_RETENTION_DAYS = 90


class WooSyncLog(models.Model):
    _name = 'woo.sync.log'
    _description = 'WooCommerce Sync Log'
    _order = 'create_date desc'
    _rec_name = 'record_ref'

    instance_id = fields.Many2one('woo.instance', ondelete='cascade')
    sync_type = fields.Selection([
        ('product', 'Product'),
        ('order', 'Order'),
        ('invoice', 'Invoice'),
        ('inventory', 'Inventory'),
        ('customer', 'Customer'),
    ])
    direction = fields.Selection([
        ('odoo_to_woo', 'Odoo \u2192 WooCommerce'),
        ('woo_to_odoo', 'WooCommerce \u2192 Odoo'),
    ])
    record_ref = fields.Char()
    state = fields.Selection([
        ('success', 'Success'),
        ('failed', 'Failed'),
        ('conflict', 'Conflict'),
    ])
    message = fields.Text()
    company_id = fields.Many2one(
        'res.company', default=lambda self: self.env.company,
    )

    @api.model
    def _cron_cleanup_logs(self):
        """Purge success/conflict logs older than 30 days, errors older than 90."""
        now = fields.Datetime.now()
        cutoff_success = fields.Datetime.subtract(now, days=SUCCESS_RETENTION_DAYS)
        cutoff_error = fields.Datetime.subtract(now, days=ERROR_RETENTION_DAYS)
        logs = self.search([
            '|',
            '&', ('state', '!=', 'failed'), ('create_date', '<', cutoff_success),
            '&', ('state', '=', 'failed'), ('create_date', '<', cutoff_error),
        ])
        count = len(logs)
        if count:
            logs.unlink()
            _logger.info("WooCommerce: purged %d old sync log entries", count)

    def action_purge_old_logs(self):
        """Manual purge: delete success logs > 7 days, error logs > 30 days."""
        self.env['woo.sync.log'].check_access_rights('unlink')
        now = fields.Datetime.now()
        cutoff_success = fields.Datetime.subtract(now, days=7)
        cutoff_error = fields.Datetime.subtract(now, days=30)
        logs = self.env['woo.sync.log'].search([
            '|',
            '&', ('state', '!=', 'failed'), ('create_date', '<', cutoff_success),
            '&', ('state', '=', 'failed'), ('create_date', '<', cutoff_error),
        ])
        count = len(logs)
        logs.unlink()
        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'title': 'Sync Logs Purged',
                'message': f'{count} old log entries deleted.',
                'type': 'success',
                'next': {'type': 'ir.actions.act_window_close'},
            },
        }

    @api.model
    def action_clear_errors(self):
        """Clear all failed sync log entries. Called from dashboard."""
        self.check_access_rights('unlink')
        logs = self.search([('state', '=', 'failed')])
        count = len(logs)
        logs.unlink()
        _logger.info("WooCommerce: manually cleared %d error log entries", count)
        return count