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 *

from .common_field_schema import base_fields, default_num_bytes


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

    id_random: Optional[str] = Field(
        **base_fields['product_id_random'],
        alias = 'product_id_random',
    )
    id: Optional[int] = Field(
        alias = 'product_id'
    )
    account_id_random: Optional[str]
    account_id: Optional[int]

    # NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
    # NOTE need to check @validator NOTE NOTE NOTE NOTE
    # This is essentially what the product is paying for
    for_type: Optional[str]
    for_id_random: Optional[str]
    for_id: Optional[int]

    type_id: Optional[int]
    type_code: Optional[str]
    type_name: Optional[str]

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

    image_url: Optional[str]
    image_small_url: Optional[str]

    unit_price: int = Field(0, ge=0, lt=1500000)
    tax_rate: Optional[int]
    lu_vat_id: Optional[int]
    vat_rate: Optional[int]
    max_quantity: Optional[int] = Field(0, ge=0, lt=150)

    recurring: Optional[bool] = False
    recurring_period: Optional[int]
    recurring_lu_unit_id: Optional[int]
    recurring_unit: Optional[str]

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

    lu_account_code_id: Optional[int]
    lu_account_code_deferred_id: Optional[int]

    metadata: Optional[str]

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

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

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

    #@validator('product_id_random', always=True)
    def product_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 product_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='product')
        return None

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

        if values['for_id_random'] and values['for_type']:
            return redis_lookup_id_random(record_id_random=values['for_id_random'], table_name=values['for_type'])
        return None

    class Config:
        underscore_attrs_are_private = True
        fields = base_fields
# ### END ### API Product Models ### Product_Base() ###