import datetime, pytz

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

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

from .common_field_schema import base_fields, default_num_bytes
# from app.models.event_session_models import Event_Session_Base


# ### BEGIN ### API Event Location Models ### Event_Location_Base() ###
class Event_Location_Base(BaseModel):
    log.setLevel(logging.WARNING) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    # --- Standardized Vision IDs (Strings) ---
    id: Optional[str] = Field(None, **base_fields['event_location_id_random'])
    event_location_id: Optional[str] = Field(None, **base_fields['event_location_id_random'])
    
    account_id: Optional[str] = Field(None, **base_fields['account_id_random'])
    event_id: Optional[str] = Field(None, **base_fields['event_id_random'])
    event_track_id: Optional[str] = Field(None, **base_fields['event_track_id_random'])

    # --- Standardized Legacy / Internal IDs (Excluded) ---
    id_random: Optional[str] = Field(None, alias='event_location_id_random', exclude=True)
    account_id_random: Optional[str] = Field(None, exclude=True)
    event_id_random: Optional[str] = Field(None, exclude=True)
    event_track_id_random: Optional[str] = Field(None, exclude=True)

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

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

    lu_location_type_id: Optional[int]
    location_type_code: Optional[str]
    location_type: Optional[str]

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

    # New internal use fields to help with logistics and planning 2022-09-15
    internal_use: Optional[bool] # Will hide from moderators, presenters, non support people, etc
    record_audio: Optional[bool] # Record the sessions in this location
    record_video: Optional[bool] # Record the sessions in this location
    internal_notes: Optional[str] # general notes
    internal_notes_access: Optional[str] # accessibility
    internal_notes_av: Optional[str] # audio video
    internal_notes_fb: Optional[str] # food and beverage
    internal_notes_it: Optional[str] # IT and networking
    internal_notes_staff: Optional[str] # staffing and labor

    passcode: Optional[str]

    cfg_json: Optional[Union[Json, None]] # Store per location config options
    data_json: Optional[Union[Json, None]] # For key value data. Careful with overwriting existing fields!

    file_count: Optional[int]
    internal_use_count: Optional[int] # Should be renamed to "internal_use_file_count"???
    event_file_id_li_json: Optional[Union[Json, None]] # List of file IDs (actually id_random)
    file_count_all: Optional[int] # Of all files under a location

    alert: Optional[bool]
    alert_msg: Optional[str]

    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]

    # Including other related objects
    #event: Optional[Event_Base]
    event_abstract_list: Optional[list] # Optional[Event_Abstract_Base]
    event_device_list: Optional[list] # Optional[Event_Device_Base]
    event_file_list: Optional[list] # Optional[Event_File_Base]
    event_file_internal_use_list: Optional[list] # Optional[Event_File_Base]
    event_presentation_list: Optional[list] # Optional[Event_Presentation_Base]
    event_presenter_list: Optional[list] # Optional[Event_Presenter_Base]
    event_session_list: Optional[list] # Optional[Event_Session_Base]
    event_track_list: Optional[list] # Optional[Event_Track_Base]

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

    @root_validator(pre=True)
    def map_v3_ids(cls, values):
        """
        Vision Transformer:
        Map DB keys to clean API keys and strip internal integers.
        """
        # 1. Map Random Strings to Clean Names
        if rid := values.get('id_random') or values.get('event_location_id_random'):
            values['id'] = rid
            values['event_location_id'] = rid
            
        if a_rid := values.get('account_id_random'):
            values['account_id'] = a_rid
        if e_rid := values.get('event_id_random'):
            values['event_id'] = e_rid
        if et_rid := values.get('event_track_id_random'):
            values['event_track_id'] = et_rid
            
        # 2. Prevent "Collision Population"
        for k in ['id', 'event_location_id', 'account_id', 'event_id', 'event_track_id']:
            if k in values and not isinstance(values[k], str) and values[k] is not None:
                del values[k]
                
        return values

    class Config:
        underscore_attrs_are_private = True
        allow_population_by_field_name = False
        fields = base_fields
# ### END ### API Event Location Models ### Event_Location_Base() ###