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.order_cart_line_models import Order_Cart_Line_Base
from app.models.order_cfg_models import Order_Cfg_Base


class Order_Cart_DB_Base(BaseModel):
    log.setLevel(logging.WARNING)
    log.debug(locals())

    id_random: Optional[str] = Field(
        **base_fields['order_cart_id_random'],
        alias = 'order_cart_id_random',
        default_factory = lambda:secrets.token_urlsafe(default_num_bytes),
    )
    id: Optional[int] = Field(
        alias = 'order_cart_id'
    )

    account_id_random: Optional[str]
    account_id: Optional[int] # NOTE: This is not really optional

    person_id_random: Optional[str]
    person_id: Optional[int]

    user_id_random: Optional[str]
    user_id: Optional[int]

    order_id_random: Optional[str]
    order_id: Optional[int]

    total_quantity: Optional[int] = Field(0, ge=0, lt=150)
    total_amount: Optional[int] = Field(0, ge=0, lt=1500000)

    notes: Optional[str]

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

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

        if values['id_random']:
            return redis_lookup_id_random(record_id_random=values['id_random'], table_name='order_cart')
        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('person_id', always=True)
    def person_id_lookup(cls, v, values, **kwargs):
        log.setLevel(logging.WARNING)
        log.debug(locals())

        if values['person_id_random']:
            return redis_lookup_id_random(record_id_random=values['person_id_random'], table_name='person')
        return None

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

        if values['user_id_random']:
            return redis_lookup_id_random(record_id_random=values['user_id_random'], table_name='user')
        return None

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

        if 'order_id_random' in values and values['order_id_random']:
            return redis_lookup_id_random(record_id_random=values['order_id_random'], table_name='order')
        return None

    class Config:
        underscore_attrs_are_private = True
        allow_population_by_field_name = True
        fields = base_fields


class Order_Cart_Base(BaseModel):
    log.setLevel(logging.WARNING)
    log.debug(locals())

    id_random: Optional[str] = Field(
        **base_fields['order_cart_id_random'],
        alias = 'order_cart_id_random',
        default_factory = lambda:secrets.token_urlsafe(default_num_bytes),
    )
    id: Optional[int] = Field(
        alias = 'order_cart_id'
    )

    account_id_random: Optional[str]
    account_id: Optional[int] # NOTE: This is not really optional

    person_id_random: Optional[str]
    person_id: Optional[int]

    user_id_random: Optional[str]
    user_id: Optional[int]

    order_id_random: Optional[str]
    order_id: Optional[int]

    total_quantity: Optional[int] = Field(0, ge=0, lt=150)
    total_amount: Optional[int] = Field(0, ge=0, lt=1500000)

    notes: Optional[str]

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

    # Including other related objects
    cfg: Optional[Order_Cfg_Base] = Order_Cfg_Base() # Should this be renamed to order_cfg?
    order_cart_line_list: Optional[list[Order_Cart_Line_Base]] # Order_Line_Base() # List[Order_Cart_Line_Base] = []

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

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

        if values['id_random']:
            return redis_lookup_id_random(record_id_random=values['id_random'], table_name='order_cart')
        return None

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

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

    @validator('person_id', always=True)
    def person_id_lookup(cls, v, values, **kwargs):
        #log.setLevel(logging.DEBUG)
        log.debug(locals())

        if person_id_random := values.get('person_id_random', None):
            return redis_lookup_id_random(record_id_random=person_id_random, table_name='person')
        return None

    @validator('user_id', always=True)
    def user_id_lookup(cls, v, values, **kwargs):
        #log.setLevel(logging.DEBUG)
        log.debug(locals())

        if user_id_random := values.get('user_id_random', None):
            return redis_lookup_id_random(record_id_random=user_id_random, table_name='user')
        return None

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

        if 'order_id_random' in values and values['order_id_random']:
            return redis_lookup_id_random(record_id_random=values['order_id_random'], table_name='order')
        return None

    class Config:
        underscore_attrs_are_private = True
        allow_population_by_field_name = True
        fields = base_fields