import datetime, pytz

from typing import Dict, List, Optional, Set, Union
from pydantic import BaseModel, EmailStr, Field, Json, PrivateAttr, ValidationError, validator

from app.db_sql import redis_lookup_id_random
from app.lib_general import log, logging

from app.models.common_field_schema import base_fields, default_num_bytes

from app.models.core_object_models import Core_Std_Obj_Base


# ### BEGIN ### API Utility: Email Models ### Email_Send_Base() ###
# Update 2023-06-27
class Email_Send_Base(BaseModel):
    log.setLevel(logging.WARNING) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    id_random: Optional[str] = Field(
        # **base_fields['email_id_random'],
        alias = 'email_id_random',
    )
    id: Optional[int] = Field(
        alias = 'email_id'
    )

    account_id_random: Optional[str]
    account_id: Optional[int]

    testing: Optional[bool] = False

    from_email: str # = 'from_test@example.com'
    from_name: str = None

    to_email: str #  = 'to_test@example.com'
    to_name: str = None

    cc_email: str = None
    cc_name: str = None

    bcc_email: str = None
    bcc_name: str = None

    subject: str

    body_html: str
    body_text: str = None

    # json: Optional[str] # "json" is reserved; need to change field name? json_str?
    # json_str: Optional[Union[Json, None]] = Field(
    #     alias = 'json',
    # )
    # text: Optional[str]

    # notes: Optional[str]

    _processed_at: datetime.datetime = PrivateAttr(default_factory=datetime.datetime.now)

    @validator('id', always=True)
    def email_id_lookup(cls, v, values, **kwargs):
        if isinstance(v, int) and v > 0: return v
        elif id_random := values.get('id_random'):
            return redis_lookup_id_random(record_id_random=id_random, table_name='email')
        return None

    @validator('account_id', always=True)
    def account_id_lookup(cls, v, values, **kwargs):
        if isinstance(v, int) and v > 0: return v
        elif id_random := values.get('account_id_random'):
            return redis_lookup_id_random(record_id_random=id_random, table_name='account')
        return None

    class Config:
        underscore_attrs_are_private = True
        allow_population_by_field_name = True
        fields = base_fields
# ### END ### API Grant Models ### Grant_Base() ###