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.product_models import Product_Base


# ### BEGIN ### API Cont Edu Cert Models ### Cont_Edu_Cert_Base() ###
class Cont_Edu_Cert_Base(BaseModel):
    log.setLevel(logging.INFO) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    id_random: Optional[str] = Field(
        **base_fields['cont_edu_cert_id_random'],
        alias = 'cont_edu_cert_id_random',
    )
    id: Optional[int] = Field(
        alias = 'cont_edu_cert_id'
    )

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

    product_id_random: Optional[str]
    product_id: Optional[int]

    name: Optional[str]
    description: Optional[str]

    title: Optional[str]
    course_name: Optional[str]
    credits: Optional[int]
    credits_text: Optional[str]
    datetime_start: Optional[datetime.datetime]
    datetime_end: Optional[datetime.datetime]
    location: Optional[str]

    enable: Optional[bool] = False

    notes: Optional[str]
    created_on: Optional[datetime.datetime] = None
    updated_on: Optional[datetime.datetime] = None

    # Including other related objects
    cont_edu_cert_person_list: Optional[list] # Cont_Edu_Cert_Person_Base()
    product: Optional[Union[Product_Base, None]]

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

    @validator('id', always=True)
    def cont_edu_cert_id_lookup(cls, v, values, **kwargs):
        log.setLevel(logging.WARNING)
        log.debug(locals())

        if values.get('id_random', None): # 'id_random' in values and values['id_random']:
            log.debug(values['id_random'])
            return redis_lookup_id_random(record_id_random=values['id_random'], table_name='cont_edu_cert')
        return None

    @validator('account_id', always=True)
    def account_id_lookup(cls, v, values, **kwargs):
        log.setLevel(logging.WARNING)
        log.debug(locals())

        if values['account_id_random']:
            return redis_lookup_id_random(record_id_random=values['account_id_random'], table_name='account')
        return None

    @validator('product_id', always=True)
    def product_id_lookup(cls, v, values, **kwargs):
        log.setLevel(logging.WARNING)
        log.debug(locals())

        if values.get('product_id_random', None): # values['product_id_random']:
            return redis_lookup_id_random(record_id_random=values['product_id_random'], table_name='product')
        return None

    class Config:
        underscore_attrs_are_private = True
        allow_population_by_field_name = True
        fields = base_fields
# ### END ### API Cont Edu Cert Models ### Cont_Edu_Cert_Base() ###