# -*- coding: utf-8 -*-

from odoo import api, fields, models, _
import logging

_logger = logging.getLogger(__name__)


class SaleOrder(models.Model):
    _inherit = 'sale.order'

    # Comments from portal users
    portal_comment_ids = fields.One2many(
        'fusion.authorizer.comment',
        'sale_order_id',
        string='Portal Comments',
    )
    
    portal_comment_count = fields.Integer(
        string='Comment Count',
        compute='_compute_portal_comment_count',
    )
    
    # Documents uploaded via portal
    portal_document_ids = fields.One2many(
        'fusion.adp.document',
        'sale_order_id',
        string='Portal Documents',
    )
    
    portal_document_count = fields.Integer(
        string='Document Count',
        compute='_compute_portal_document_count',
    )
    
    # Link to assessment
    assessment_id = fields.Many2one(
        'fusion.assessment',
        string='Source Assessment',
        readonly=True,
        help='The assessment that created this sale order',
    )
    
    # Authorizer helper field (consolidates multiple possible fields)
    portal_authorizer_id = fields.Many2one(
        'res.partner',
        string='Authorizer (Portal)',
        compute='_compute_portal_authorizer_id',
        store=True,
        help='Consolidated authorizer field for portal access',
    )

    @api.depends('portal_comment_ids')
    def _compute_portal_comment_count(self):
        for order in self:
            order.portal_comment_count = len(order.portal_comment_ids)

    @api.depends('portal_document_ids')
    def _compute_portal_document_count(self):
        for order in self:
            order.portal_document_count = len(order.portal_document_ids)

    @api.depends('x_fc_authorizer_id')
    def _compute_portal_authorizer_id(self):
        """Get authorizer from x_fc_authorizer_id field"""
        for order in self:
            order.portal_authorizer_id = order.x_fc_authorizer_id

    def write(self, vals):
        """Override write to send notification when authorizer is assigned."""
        old_authorizers = {
            order.id: order.x_fc_authorizer_id.id if order.x_fc_authorizer_id else False
            for order in self
        }
        
        result = super().write(vals)
        
        # Check for authorizer changes
        if 'x_fc_authorizer_id' in vals:
            for order in self:
                old_auth = old_authorizers.get(order.id)
                new_auth = vals.get('x_fc_authorizer_id')
                if new_auth and new_auth != old_auth:
                    order._send_authorizer_assignment_notification()
        
        # NOTE: Generic status change notifications removed.
        # Each status transition already sends its own detailed email
        # from fusion_claims (approval, denial, submission, billed, etc.)
        # A generic "status changed" email on top was redundant and lacked detail.
        
        return result

    def action_message_authorizer(self):
        """Open composer to send message to authorizer only"""
        self.ensure_one()
        if not self.x_fc_authorizer_id:
            return {'type': 'ir.actions.act_window_close'}
        
        return {
            'type': 'ir.actions.act_window',
            'name': 'Message Authorizer',
            'res_model': 'mail.compose.message',
            'view_mode': 'form',
            'target': 'new',
            'context': {
                'default_model': 'sale.order',
                'default_res_ids': [self.id],
                'default_partner_ids': [self.x_fc_authorizer_id.id],
                'default_composition_mode': 'comment',
                'default_subtype_xmlid': 'mail.mt_note',
            },
        }

    def _send_authorizer_assignment_notification(self):
        """Send email when an authorizer is assigned to the order"""
        self.ensure_one()
        
        if not self.x_fc_authorizer_id or not self.x_fc_authorizer_id.email:
            return
        
        try:
            template = self.env.ref('fusion_authorizer_portal.mail_template_case_assigned', raise_if_not_found=False)
            if template:
                template.send_mail(self.id, force_send=False)
                _logger.info(f"Sent case assignment notification to {self.x_fc_authorizer_id.email} for {self.name}")
        except Exception as e:
            _logger.error(f"Failed to send authorizer assignment notification: {e}")

    # _send_status_change_notification removed -- redundant.
    # Each workflow transition in fusion_claims sends its own detailed email.

    def action_view_portal_comments(self):
        """View portal comments"""
        self.ensure_one()
        return {
            'type': 'ir.actions.act_window',
            'name': _('Portal Comments'),
            'res_model': 'fusion.authorizer.comment',
            'view_mode': 'list,form',
            'domain': [('sale_order_id', '=', self.id)],
            'context': {'default_sale_order_id': self.id},
        }

    def action_view_portal_documents(self):
        """View portal documents"""
        self.ensure_one()
        return {
            'type': 'ir.actions.act_window',
            'name': _('Portal Documents'),
            'res_model': 'fusion.adp.document',
            'view_mode': 'list,form',
            'domain': [('sale_order_id', '=', self.id)],
            'context': {'default_sale_order_id': self.id},
        }

    def get_portal_display_data(self):
        """Get data for portal display, excluding sensitive information"""
        self.ensure_one()
        
        return {
            'id': self.id,
            'name': self.name,
            'date_order': self.date_order,
            'state': self.state,
            'state_display': dict(self._fields['state'].selection).get(self.state, self.state),
            'partner_name': self.partner_id.name if self.partner_id else '',
            'partner_address': self._get_partner_address_display(),
            'client_reference_1': self.x_fc_client_ref_1 or '',
            'client_reference_2': self.x_fc_client_ref_2 or '',
            'claim_number': self.x_fc_claim_number or '',
            'authorizer_name': self.x_fc_authorizer_id.name if self.x_fc_authorizer_id else '',
            'sales_rep_name': self.user_id.name if self.user_id else '',
            'product_lines': self._get_product_lines_for_portal(),
            'comment_count': self.portal_comment_count,
            'document_count': self.portal_document_count,
        }

    def _get_partner_address_display(self):
        """Get formatted partner address for display"""
        if not self.partner_id:
            return ''
        
        parts = []
        if self.partner_id.street:
            parts.append(self.partner_id.street)
        if self.partner_id.city:
            city_part = self.partner_id.city
            if self.partner_id.state_id:
                city_part += f", {self.partner_id.state_id.name}"
            if self.partner_id.zip:
                city_part += f" {self.partner_id.zip}"
            parts.append(city_part)
        
        return ', '.join(parts)

    def _get_product_lines_for_portal(self):
        """Get product lines for portal display (excluding costs)"""
        lines = []
        for line in self.order_line:
            lines.append({
                'id': line.id,
                'product_name': line.product_id.name if line.product_id else line.name,
                'quantity': line.product_uom_qty,
                'uom': line.product_uom_id.name if line.product_uom_id else '',
                'adp_code': line.x_fc_adp_device_code or '' if hasattr(line, 'x_fc_adp_device_code') else '',
                'device_type': '',
                'serial_number': line.x_fc_serial_number or '' if hasattr(line, 'x_fc_serial_number') else '',
            })
        return lines

    @api.model
    def get_authorizer_portal_cases(self, partner_id, search_query=None, limit=100, offset=0):
        """Get cases for authorizer portal with optional search"""
        domain = [('x_fc_authorizer_id', '=', partner_id)]
        
        # Add search if provided
        if search_query:
            search_domain = self._build_search_domain(search_query)
            domain = ['&'] + domain + search_domain
        
        orders = self.sudo().search(domain, limit=limit, offset=offset, order='date_order desc, id desc')
        return orders

    @api.model
    def get_sales_rep_portal_cases(self, user_id, search_query=None, limit=100, offset=0):
        """Get cases for sales rep portal with optional search"""
        domain = [('user_id', '=', user_id)]
        
        # Add search if provided
        if search_query:
            search_domain = self._build_search_domain(search_query)
            domain = domain + search_domain
        
        orders = self.sudo().search(domain, limit=limit, offset=offset, order='date_order desc, id desc')
        return orders

    def _build_search_domain(self, query):
        """Build search domain for portal search"""
        if not query or len(query) < 2:
            return []
        
        search_domain = [
            '|', '|', '|', '|',
            ('partner_id.name', 'ilike', query),
            ('x_fc_claim_number', 'ilike', query),
            ('x_fc_client_ref_1', 'ilike', query),
            ('x_fc_client_ref_2', 'ilike', query),
        ]
        
        return search_domain