from odoo import models, fields, api
from .. import random_tokens


class AccessTokenBase(models.AbstractModel):
    _name = "galicea_openid_connect.access_token_base"

    token = fields.Char(
        readonly=True,
        required=True,
        default=lambda _: random_tokens.alpha_numeric(64),
        index=True,
    )
    client_id = fields.Many2one(
        "galicea_openid_connect.client",
        readonly=True,
        index=True,
        required=True,
        ondelete="cascade",
    )


class AccessToken(models.Model):
    _inherit = "galicea_openid_connect.access_token_base"
    _name = "galicea_openid_connect.access_token"
    _description = "Acccess token representing user-client pair"

    user_id = fields.Many2one(
        "res.users", required=True, readonly=True, index=True, ondelete="cascade"
    )

    @api.model
    def retrieve_or_create(self, user_id, client_id):
        existing_tokens = self.search(
            [("user_id", "=", user_id), ("client_id", "=", client_id),]
        )
        if existing_tokens:
            return existing_tokens[0]
        else:
            return self.create({"user_id": user_id, "client_id": client_id})


class ClientAccessToken(models.Model):
    _inherit = "galicea_openid_connect.access_token_base"
    _name = "galicea_openid_connect.client_access_token"
    _description = "Access token representing client credentials"

    @api.model
    def retrieve_or_create(self, client_id):
        existing_tokens = self.search([("client_id", "=", client_id),])
        if existing_tokens:
            return existing_tokens[0]
        else:
            return self.create({"client_id": client_id})