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.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_presenter_models import Event_Presenter_Base
# from app.models.event_session_models import Event_Session_Base
from app.models.person_models import Person_Base


# ### BEGIN ### API Event Presentation Models ### Event_Presentation_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',
    )
    id: Optional[int] = Field(
        alias = 'event_presentation_id'
    )

    external_id: Optional[str] = Field(
        alias = 'event_presentation_external_id'
    )

    code: Optional[str] = Field(
        alias = 'event_presentation_code'
    )

    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]

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

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

    file_count: Optional[int]

    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 convenience data
    # This is only for convenience. Probably going to keep unless it causes a problem.
    event_name: Optional[str]
    event_start_datetime: Optional[datetime.datetime]
    event_end_datetime: Optional[datetime.datetime]
    event_location_name: Optional[str]
    event_session_name: Optional[str]
    event_session_start_datetime: Optional[datetime.datetime]
    event_session_end_datetime: Optional[datetime.datetime]
    event_track_name: Optional[str]

    # 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[Event_Presenter_Base]] # Optional[Event_Presenter_Base]
    # event_session: Optional[Event_Session_Base]
    event_session: Optional[dict]
    #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):
        if values['id_random']:
            return values['id_random']
        return None

    @validator('id', always=True)
    def event_presentation_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='event_presentation')
        return None

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

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

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

    class Config:
        underscore_attrs_are_private = True
        allow_population_by_field_name = True
        fields = base_fields
# ### END ### API Event Presentation Models ### Event_Presentation_Base() ###