# coding: utf-8

"""
    Ringer Business API - Authentication

    The Ringer Business API uses OAuth 2.0 to authenticate and authorize client applications. This section details the endpoints for obtaining and revoking access tokens.  **Supported Grant Types for Obtaining Access Tokens (`/auth/token`):**  *   **Password Grant:**     For trusted first-party applications where users directly provide their credentials.     Requires: `grant_type=\"password\"`, `username`, `password`, `client_id`, `client_secret`.  *   **Client Credentials Grant:**     For server-to-server authentication where the client is acting on its own behalf.     Requires: `grant_type=\"client_credentials\"`, `client_id`, `client_secret`.  *   **Refresh Token Grant:**     To obtain a new access token using a previously issued refresh token.     Requires: `grant_type=\"refresh_token\"`, `refresh_token`, `client_id`, `client_secret`.  Access tokens are typically short-lived (e.g., 2 hours). Use the refresh token to maintain an active session without requiring users to re-authenticate frequently.  **Important Security Note:** Your `client_id` and `client_secret` are confidential. Secure them appropriately and never expose them in client-side code or public repositories. 

    The version of the OpenAPI document: 1.0.0
    Contact: support@ringer.tel
    Generated by OpenAPI Generator (https://openapi-generator.tech)

    Do not edit the class manually.
"""  # noqa: E501


from __future__ import annotations
import pprint
import re  # noqa: F401
import json

from pydantic import BaseModel, ConfigDict, Field, SecretStr, StrictStr, field_validator
from typing import Any, ClassVar, Dict, List, Optional
from typing import Optional, Set
from typing_extensions import Self

class TokenRequest(BaseModel):
    """
    Parameters for requesting an OAuth 2.0 access token. Required fields vary by grant_type.
    """ # noqa: E501
    grant_type: StrictStr = Field(description="The OAuth 2.0 grant type.")
    username: Optional[StrictStr] = Field(default=None, description="User's email address (required for `password` grant).")
    password: Optional[SecretStr] = Field(default=None, description="User's password (required for `password` grant).")
    refresh_token: Optional[StrictStr] = Field(default=None, description="Refresh token (required for `refresh_token` grant).")
    client_id: StrictStr = Field(description="The application's client ID.")
    client_secret: StrictStr = Field(description="The application's client secret.")
    scope: Optional[StrictStr] = Field(default=None, description="(Optional) A space-separated list of requested scopes. The granted scopes may differ.")
    __properties: ClassVar[List[str]] = ["grant_type", "username", "password", "refresh_token", "client_id", "client_secret", "scope"]

    @field_validator('grant_type')
    def grant_type_validate_enum(cls, value):
        """Validates the enum"""
        if value not in set(['password', 'client_credentials', 'refresh_token']):
            raise ValueError("must be one of enum values ('password', 'client_credentials', 'refresh_token')")
        return value

    model_config = ConfigDict(
        populate_by_name=True,
        validate_assignment=True,
        protected_namespaces=(),
    )


    def to_str(self) -> str:
        """Returns the string representation of the model using alias"""
        return pprint.pformat(self.model_dump(by_alias=True))

    def to_json(self) -> str:
        """Returns the JSON representation of the model using alias"""
        # TODO: pydantic v2: use .model_dump_json(by_alias=True, exclude_unset=True) instead
        return json.dumps(self.to_dict())

    @classmethod
    def from_json(cls, json_str: str) -> Optional[Self]:
        """Create an instance of TokenRequest from a JSON string"""
        return cls.from_dict(json.loads(json_str))

    def to_dict(self) -> Dict[str, Any]:
        """Return the dictionary representation of the model using alias.

        This has the following differences from calling pydantic's
        `self.model_dump(by_alias=True)`:

        * `None` is only added to the output dict for nullable fields that
          were set at model initialization. Other fields with value `None`
          are ignored.
        """
        excluded_fields: Set[str] = set([
        ])

        _dict = self.model_dump(
            by_alias=True,
            exclude=excluded_fields,
            exclude_none=True,
        )
        # set to None if username (nullable) is None
        # and model_fields_set contains the field
        if self.username is None and "username" in self.model_fields_set:
            _dict['username'] = None

        # set to None if password (nullable) is None
        # and model_fields_set contains the field
        if self.password is None and "password" in self.model_fields_set:
            _dict['password'] = None

        # set to None if refresh_token (nullable) is None
        # and model_fields_set contains the field
        if self.refresh_token is None and "refresh_token" in self.model_fields_set:
            _dict['refresh_token'] = None

        # set to None if scope (nullable) is None
        # and model_fields_set contains the field
        if self.scope is None and "scope" in self.model_fields_set:
            _dict['scope'] = None

        return _dict

    @classmethod
    def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
        """Create an instance of TokenRequest from a dict"""
        if obj is None:
            return None

        if not isinstance(obj, dict):
            return cls.model_validate(obj)

        _obj = cls.model_validate({
            "grant_type": obj.get("grant_type"),
            "username": obj.get("username"),
            "password": obj.get("password"),
            "refresh_token": obj.get("refresh_token"),
            "client_id": obj.get("client_id"),
            "client_secret": obj.get("client_secret"),
            "scope": obj.get("scope")
        })
        return _obj


