from __future__ import annotations
import datetime, hashlib, logging, os, pytz, redis, secrets

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.event_models import Event_Base
# from app.models.event_abstract_models import Event_Abstract_Base # This creates an import loop
from app.models.event_person_models import Event_Person_Base
from app.models.event_session_models import Event_Session_Base
from app.models.person_models import Person_Base


class Event_Presentation_Base(BaseModel):
    log.setLevel(logging.WARNING) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    id_random: Optional[str] = Field(
        **base_fields['event_presentation_id_random'],
        alias = 'event_presentation_id_random',
        default_factory = lambda:secrets.token_urlsafe(default_num_bytes),
    )
    id: Optional[int] = Field(
        #alias = 'event_presentation_id'
    )
    event_id_random: Optional[str]
    event_id: Optional[int]
    event_abstract_id_random: Optional[str]
    event_abstract_id: Optional[int]
    #event_location_id_random: Optional[str]
    #event_location_id: Optional[int]
    event_session_id_random: Optional[str]
    event_session_id: Optional[int]
    #event_track_id_random: Optional[str]
    #event_track_id: Optional[int]
    poc_event_person: Optional[Event_Person_Base]
    poc_person: Optional[Person_Base]

    for_type: Optional[str]
    for_id: Optional[int]

    code: Optional[str]

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

    start_datetime: Optional[datetime.datetime]
    end_datetime: Optional[datetime.datetime]

    enable: Optional[bool]
    enable_from: Optional[datetime.datetime] = None
    enable_to: Optional[datetime.datetime] = None

    hide: Optional[bool]
    public: Optional[bool]
    public_hide: Optional[bool]
    hide_event_launcher: Optional[bool]

    priority: Optional[bool]
    sort: Optional[int]
    group: Optional[str]

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

    # Including other related objects
    #event: Optional[Event_Base]
    #event_abstract: Optional[Event_Abstract_Base] # This creates an import loop
    event_abstract_list: Optional[list] # Optional[Event_Abstract_Base] Is more than one abstract allowed per presenter?
    #event_device_list: Optional[list] # Optional[Event_Device_Base]
    event_file_list: Optional[list] # Optional[Event_File_Base]
    #event_location: Optional[Event_Location_Base]
    event_presenter_list: Optional[list] # Optional[Event_Presenter_Base]
    event_session: Optional[Event_Session_Base]
    #event_track: Optional[Event_Track_Base]

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

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

        if values['id_random']:
            return values['id_random']
        return None

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

        if values['id_random']:
            log.debug(values['id_random'])
            return redis_lookup_id_random(record_id_random=values['id_random'], table_name='event_presentation')
        return None

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

        if values['event_id_random']:
            return redis_lookup_id_random(record_id_random=values['event_id_random'], table_name='event')
        return None

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

        if values['event_abstract_id_random']:
            return redis_lookup_id_random(record_id_random=values['event_abstract_id_random'], table_name='event_abstract')
        return None

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

        if values['event_session_id_random']:
            return redis_lookup_id_random(record_id_random=values['event_session_id_random'], table_name='event_session')
        return None

    class Config:
        underscore_attrs_are_private = True
        fields = base_fields

#Event_Presentation_Base.update_forward_refs()