# Copyright 2016 Nicolas Bessi, Camptocamp SA
# Copyright 2018 Aitor Bouzas <aitor.bouzas@adaptivecity.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from flectra import api, fields, models


class ResCityZip(models.Model):
    """City/locations completion object"""

    _name = "res.city.zip"
    _description = __doc__
    _order = "name asc"
    _rec_names_search = ["name", "city_id", "state_id", "country_id"]

    name = fields.Char("ZIP", required=True)
    city_id = fields.Many2one(
        "res.city",
        "City",
        required=True,
        auto_join=True,
        ondelete="cascade",
        index=True,
    )
    state_id = fields.Many2one(related="city_id.state_id")
    country_id = fields.Many2one(related="city_id.country_id")

    _sql_constraints = [
        (
            "name_city_uniq",
            "UNIQUE(name, city_id)",
            "You already have a zip with that code in the same city. "
            "The zip code must be unique within it's city",
        )
    ]

    @api.depends(
        "name",
        "city_id",
        "city_id.name",
        "city_id.state_id.name",
        "city_id.state_id",
        "city_id.country_id",
        "city_id.country_id.name",
    )
    def _compute_display_name(self):
        """Get the proper display name formatted as 'ZIP, name, state, country'."""
        for rec in self:
            state_name = (
                rec.city_id.state_id.name + ", " if rec.city_id.state_id else ""
            )
            country_name = rec.city_id.country_id.name if rec.city_id.country_id else ""
            rec.display_name = (
                f"{rec.name}, {rec.city_id.name}, " f"{state_name}{country_name}"
            )