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 ..lib_general import *
from ..log import *

from .common_field_schema import base_fields, default_num_bytes
#from .supporting_core_models import *
from .person_model import Person_Base
from .user_model import User_Base


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

    account_name: Optional[str]

    default_no_reply_email: Optional[str]
    default_no_reply_name: Optional[str]
    confirm_email: Optional[str]
    confirm_name: Optional[str]

    order_header: Optional[str]
    order_thanks: Optional[str]
    order_message: Optional[str]
    order_footer: Optional[str]
    order_fundraising_thanks: Optional[str]
    order_fundraising_message: Optional[str]


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

    id_random: Optional[str] = Field(
        **base_fields['order_line_id_random'],
        alias='order_line_id_random',
        default_factory=lambda:secrets.token_urlsafe(default_num_bytes),
    )
    id: Optional[int] = Field(
        #alias='order_line_id'
    )
    #order_line_id_random: Optional[str]
    order_id_random: Optional[str]
    order_id: Optional[int]
    product_id_random: str
    product_id: Optional[int]
    product_type_id: Optional[int]
    product_type: Optional[str]
    name: Optional[str]
    description: Optional[str]
    quantity: int = Field(0, ge=0, lt=150)
    amount: int = Field(0, ge=0, lt=1500000)
    recurring: Optional[bool] = False
    message: 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('order_line_id_random', always=True)
    def order_line_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_line_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='order_line')
        return None

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

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

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

        if values['product_id_random']:
            return redis_lookup_id_random(record_id_random=values['product_id_random'], table_name='product')
        return None

    class Config:
        underscore_attrs_are_private = True
        fields = base_fields


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

    # from .person_model import Person_Base
    # from .user_model import User_Base

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

    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]
    total_quantity: Optional[int] = Field(0, ge=0, lt=150)
    total_bill: Optional[int] = Field(0, ge=0, lt=1500000) # NOTE: This is total_amount in the order_cart
    total_paid: Optional[int] = Field(0, ge=0, lt=1500000)
    balance: Optional[int] = Field(0, ge=-1500000, lt=1500000) # Balance needs to be calculated
    status: Optional[str]
    notes: Optional[str]
    created_on: Optional[datetime.datetime] = None
    updated_on: Optional[datetime.datetime] = None

    order_line_list: List[Order_Line_Base] = []

    cfg: Optional[Order_Cfg_Base] = Order_Cfg_Base()

    person: Optional[Person_Base] = Person_Base()
    user: Optional[User_Base] = User_Base()

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

    #@validator('order_id_random', always=True)
    def order_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_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')
        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

    class Config:
        underscore_attrs_are_private = True
        fields = base_fields