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

from odoo import models, fields, api

class AddressAddress(models.Model):
    _name = 'address.address'
    # loc_code = fields.Char()
    _rec_name = "location_name"
    _description = "Address_Add"
    location_name = fields.Char(string='ឈ្មោះទីតាំង', required=True)
    parent_location = fields.Many2one('address.address', string='ទីកន្លែងមេ')
    children_ids = fields.One2many('address.address', 'parent_location', 'Children', copy=True)
    loc_code = fields.Selection([('1', 'រាជធានី/ខេត្ត'),
                                 ('2', 'ស្រុក/ខ័ណ្ឌ/ក្រុង'),
                                 ('3', 'ឃុំ/សង្កាត់'),
                                 ('4', 'ភូមិ')], string='ជា')

    # -------------------------------------------------------------------------
    # Helper Methods for Portal
    # -------------------------------------------------------------------------

    @api.model
    def get_locations_by_level(self, level_code, parent_id=None):
        """
        Get locations filtered by level and optional parent
        @param level_code: '1', '2', '3', or '4'
        @param parent_id: ID of parent location (for levels 2-4)
        @return: recordset of address.address
        """
        domain = [('loc_code', '=', level_code)]
        if parent_id and level_code != '1':
            domain.append(('parent_location', '=', parent_id))
        return self.sudo().search(domain, order='location_name')

    @api.model
    def get_location_path(self, location_id):
        """
        Get full path string for a location
        @return: "Province > District > Commune > Village"
        """
        location = self.browse(location_id)
        if not location.exists():
            return ''

        path = []
        current = location
        while current:
            path.insert(0, current.location_name)
            current = current.parent_location

        return ' > '.join(path)

    @api.model
    def get_cascading_options(self, parent_id=None):
        """
        Get all child options for cascading dropdowns
        Useful for pre-loading in form context
        @return: dict of {loc_code: [{id, name}]}
        """
        result = {}
        for code in ['2', '3', '4']:  # District, Commune, Village
            domain = [('loc_code', '=', code)]
            if parent_id:
                # Get children of this parent at any level
                domain.append(('parent_location', '=', parent_id))
            items = self.sudo().search(domain, order='location_name')
            result[code] = [{'id': i.id, 'name': i.location_name} for i in items]
        return result