from pydantic import BaseModel, Field, model_validator, validator, ConfigDict
from typing import List, Optional, Literal
from datetime import datetime, date, timezone
from fastapi.security import OAuth2PasswordRequestForm
import json
from fastapi import File, Form, UploadFile


class NotifyItem(BaseModel):
    user_id: str
    text: str
    title: Optional[str] = "Уведомление"
    link: str = "/profile"
    type_item: str = "c" 


class DeliverySendRequest(BaseModel):
    sender: str
    too: str
    item: str
    delivery_type: Literal["СДЭК", "Самостоятельно"]
    track: Optional[str] = Field(None, description="Трэк-номер для СДЭК")


class DeliveryAcceptRequest(BaseModel):
    item: str


class UserRegister(BaseModel):
    username: Optional[str]
    phone: Optional[str] 
    email: Optional[str]
    # img: Optional[UploadFile]
    password: str
    client_id: str
    roles: List[str] = ["user"]
    extra_scopes: List[str] = []
    birthday: Optional[date]
    grade: Optional[str]
    female_name_lastname: Optional[str] = Field(None, alias="Female_Name_Lastame")
    living_place: Optional[str]
    offer_accepted: Optional[bool] = False
    offer_accepted_at: Optional[datetime] = None

    @model_validator(mode='after')
    def at_least_one_identifier(self):
        if not any([self.username, self.phone, self.email]):
            raise ValueError("At least one of username, phone or email is required")
        return self
    model_config = {"validate_by_name": True}


class FormCompetition(BaseModel):
    id: str
    title: str
    address: Optional[str]
    topic: Optional[str]
    short_desc: Optional[str]
    rules_file_id: Optional[str]
    poster_file_id: Optional[str]
    min_paintings: Optional[int]
    max_paintings: Optional[int]


class UserLoginForm(OAuth2PasswordRequestForm):
    pass 


class LoginRequest(BaseModel):
    identifier: str
    password: str
    client_id: str


class RestoreRequest(BaseModel):
    identifier: str
    next: str


class ResetPasswordRequest(BaseModel):
    token: str
    new_password: str


class AdminLoginRequest(BaseModel):
    user_id: str


class PartnercompetitionRequest(BaseModel):
    competition_id: str
    post_id: str
    status: str


class CompetitionArtistRequest(BaseModel):
    competition_id: str
    user_id: str


class Partnercompetitionstop(BaseModel):
    competition_id: str


class PartnerExhibitionDelete(BaseModel):
    exhibition_id: str


class PostEditDescription(BaseModel):
    post_id: str
    description: str


class TokenResponse(BaseModel):
    access_token: str
    refresh_token: str
    token_type: str = "bearer"


class RefreshRequest(BaseModel):
    refresh_token: str | None = None
    client_id: str | None = None


class CompetitionCreate(BaseModel):
    datetime_start: datetime
    date_finish: datetime
    poster: UploadFile
    type_: str
    title: str
    topic: Optional[str] = None
    nominations: List[str] = []
    address: str
    short_desc: Optional[str] = None
    rules_link: Optional[str] = None
    rules: Optional[UploadFile] = None
    min_paintings: int
    max_paintings: int
    emailsNotify: bool = False
    serviceSocial: bool = False
    userSocial: bool = False

    @model_validator(mode="after")
    def make_aware(cls, values):
        tz = timezone.utc
        if not values.rules_link and not values.rules:
            raise ValueError(
                "Укажите хотя бы один из параметров: `rules_link` ИЛИ `rules` (файл)."
            )
        if values.datetime_start and values.datetime_start.tzinfo is None:
            values.datetime_start = values.datetime_start.replace(tzinfo=tz)
        elif values.datetime_start:
            values.datetime_start = values.datetime_start.astimezone(tz)
        if values.date_finish and values.date_finish.tzinfo is None:
            values.date_finish = values.date_finish.replace(tzinfo=tz)
        elif values.date_finish:
            values.date_finish = values.date_finish.astimezone(tz)
        return values
    
    @validator("nominations", pre=True, always=True)
    def parse_nominations(cls, v):
        if v is None:
            return None
        if isinstance(v, list):
            return v
        try:
            data = json.loads(v)
            return data if isinstance(data, list) else [data]
        except (json.JSONDecodeError, TypeError):
            return [v]


class ExhibitionCreate(BaseModel):
    datetime_start: datetime
    date_finish: datetime
    poster: UploadFile
    rules: Optional[UploadFile] = None
    rules_link: Optional[str] = None
    tizer: Optional[UploadFile] = None
    tizer_link: Optional[str] = None
    title: str
    topic: Optional[str] = None
    address: Optional[str] = None
    place: Optional[str] = None

    @model_validator(mode="after")
    def make_aware(cls, values):
        tz = timezone.utc
        if not values.rules_link and not values.rules:
            raise ValueError(
                "Укажите хотя бы один из параметров: `rules_link` ИЛИ `rules` (файл)."
            )
        if not values.tizer_link and not values.tizer:
            raise ValueError(
                "Укажите хотя бы один из параметров: `tizer_link` ИЛИ `tizer` (файл)."
            )
        if values.datetime_start and values.datetime_start.tzinfo is None:
            values.datetime_start = values.datetime_start.replace(tzinfo=tz)
        elif values.datetime_start:
            values.datetime_start = values.datetime_start.astimezone(tz)
        if values.date_finish and values.date_finish.tzinfo is None:
            values.date_finish = values.date_finish.replace(tzinfo=tz)
        elif values.date_finish:
            values.date_finish = values.date_finish.astimezone(tz)
        return values


async def build_payload(
    datetime_start: datetime = Form(...),
    date_finish: datetime = Form(...),
    poster: UploadFile = File(...),
    type_: str = Form(...),
    title: str = Form(...),
    topic: Optional[str] = Form(None),
    nominations: Optional[str] = Form(None),
    address: str = Form(...),
    short_desc: Optional[str] = Form(None),
    rules_link: Optional[str] = Form(None),
    rules: Optional[UploadFile] = File(None),
    min_paintings: int = Form(...),
    max_paintings: int = Form(...),
    emailsNotify: bool = Form(False),
    serviceSocial: bool = Form(False),
    userSocial: bool = Form(False),
) -> CompetitionCreate:
    return CompetitionCreate(
        datetime_start=datetime_start,
        date_finish=date_finish,
        poster=poster,
        type_=type_,
        title=title,
        topic=topic,
        nominations=nominations,
        address=address,
        short_desc=short_desc,
        rules_link=rules_link,
        rules=rules,
        min_paintings=min_paintings,
        max_paintings=max_paintings,
        emailsNotify=emailsNotify,
        serviceSocial=serviceSocial,
        userSocial=userSocial,
    )


class CompetitionUpdate(BaseModel):
    datetime_start: Optional[datetime] = None
    date_finish:   Optional[datetime] = None
    poster:        Optional[UploadFile] = None
    type_:         Optional[str] = None
    title:         Optional[str] = None
    topic:         Optional[str] = None
    nominations:   Optional[List[str]] = None
    rules_link:    Optional[str] = None
    address:       Optional[str] = None
    short_desc:    Optional[str] = None
    rules:         Optional[UploadFile] = None
    min_paintings: Optional[int] = None
    max_paintings: Optional[int] = None
    emailsNotify:  Optional[bool] = False
    serviceSocial: Optional[bool] = False
    userSocial:    Optional[bool] = False
    
    model_config = ConfigDict(
        arbitrary_types_allowed=True,
        json_encoders={
            datetime: lambda v: v.isoformat()
        },
    )

    @model_validator(mode="after")
    def make_aware(cls, values):
        tz = timezone.utc
        if values.datetime_start and values.datetime_start.tzinfo is None:
            values.datetime_start = values.datetime_start.replace(tzinfo=tz)
        elif values.datetime_start:
            values.datetime_start = values.datetime_start.astimezone(tz)
        if values.date_finish and values.date_finish.tzinfo is None:
            values.date_finish = values.date_finish.replace(tzinfo=tz)
        elif values.date_finish:
            values.date_finish = values.date_finish.astimezone(tz)
        return values


    @validator("nominations", pre=True, always=True)
    def parse_nominations(cls, v):
        if v is None:
            return None
        if isinstance(v, list):
            return v
        try:
            data = json.loads(v)
            return data if isinstance(data, list) else [data]
        except (json.JSONDecodeError, TypeError):
            return [v]


async def build_update_payload(
    datetime_start: Optional[datetime] = Form(None),
    date_finish:   Optional[datetime] = Form(None),
    poster:        Optional[UploadFile] = File(None),
    type_:         Optional[str] = Form(...),
    title:         Optional[str] = Form(None),
    topic:         Optional[str] = Form(None),
    nominations:   Optional[str] = Form(None),
    rules_link:    Optional[str] = Form(None),
    address:       Optional[str] = Form(None),
    short_desc:    Optional[str] = Form(None),
    rules:         Optional[UploadFile] = File(None),
    min_paintings: Optional[int] = Form(None),
    max_paintings: Optional[int] = Form(None),
    emailsNotify:  Optional[bool] = Form(False),
    serviceSocial: Optional[bool] = Form(False),
    userSocial:    Optional[bool] = Form(False),
) -> CompetitionUpdate:
    return CompetitionUpdate(
        datetime_start=datetime_start,
        date_finish=date_finish,
        poster=poster,
        type_=type_,
        title=title,
        topic=topic,
        nominations=nominations,
        rules_link=rules_link,
        address=address,
        short_desc=short_desc,
        rules=rules,
        min_paintings=min_paintings,
        max_paintings=max_paintings,
        emailsNotify=emailsNotify,
        serviceSocial=serviceSocial,
        userSocial=userSocial,
    )


class CompetitionPublishParams(BaseModel):
    competition_id: str
    emailsNotify: bool = False
    serviceSocial: bool = False
    userSocial: bool = False
    usersSocial: bool = False


async def build_publish_payload(
    competition_id: str = Form(...),
    emailsNotify: bool = Form(False),
    serviceSocial: bool = Form(False),
    userSocial: bool = Form(False),
    usersSocial: bool = Form(False),
) -> CompetitionPublishParams:
    return CompetitionPublishParams(
        competition_id=competition_id,
        emailsNotify=emailsNotify,
        serviceSocial=serviceSocial,
        userSocial=userSocial,
        usersSocial=usersSocial,
    )


async def build_exhibition_payload(
    datetime_start: datetime = Form(...),
    date_finish: datetime = Form(...),
    poster: Optional[UploadFile] = File(...),
    rules: Optional[UploadFile] = File(None),
    rules_link: Optional[str] = Form(None),
    tizer: Optional[UploadFile] = File(None),
    tizer_link: Optional[str] = Form(None),
    title: str = Form(...),
    topic: Optional[str] = Form(None),
    address: Optional[str] = Form(None),
    place: Optional[str] = Form(None),
) -> ExhibitionCreate:
    return ExhibitionCreate(
        datetime_start=datetime_start,
        date_finish=date_finish,
        poster=poster,
        rules=rules,
        rules_link=rules_link,
        tizer=tizer,
        tizer_link=tizer_link,
        title=title,
        topic=topic,
        address=address,
        place=place,
    )


class ExhibitionUpdate(BaseModel):
    datetime_start: Optional[datetime] = None
    date_finish:   Optional[datetime] = None
    poster:        Optional[UploadFile] = None
    rules:         Optional[UploadFile] = None
    rules_link:    Optional[str] = None
    tizer:         Optional[UploadFile] = None
    tizer_link:    Optional[str] = None
    title:         Optional[str] = None
    topic:         Optional[str] = None
    address:       Optional[str] = None
    place:         Optional[str] = None
    short_desc:    Optional[str] = None

    model_config = ConfigDict(
        arbitrary_types_allowed=True,
        json_encoders={
            datetime: lambda v: v.isoformat()
        },
    )

    @model_validator(mode="after")
    def make_aware(cls, values):
        tz = timezone.utc
        if values.datetime_start and values.datetime_start.tzinfo is None:
            values.datetime_start = values.datetime_start.replace(tzinfo=tz)
        elif values.datetime_start:
            values.datetime_start = values.datetime_start.astimezone(tz)
        
        if values.date_finish and values.date_finish.tzinfo is None:
            values.date_finish = values.date_finish.replace(tzinfo=tz)
        elif values.date_finish:
            values.date_finish = values.date_finish.astimezone(tz)
        return values


async def build_update_exhibition_payload(
    datetime_start: Optional[datetime] = Form(None),
    date_finish:   Optional[datetime] = Form(None),
    poster:        Optional[UploadFile] = File(None),
    rules:         Optional[UploadFile] = File(None),
    rules_link:    Optional[str] = Form(None),
    tizer:         Optional[UploadFile] = File(None),
    tizer_link:    Optional[str] = Form(None),
    title:         Optional[str] = Form(None),
    topic:         Optional[str] = Form(None),
    address:       Optional[str] = Form(None),
    place:         Optional[str] = Form(None),
    short_desc:    Optional[str] = Form(None),
) -> ExhibitionUpdate:
    return ExhibitionUpdate(
        datetime_start=datetime_start,
        date_finish=date_finish,
        poster=poster,
        rules=rules,
        rules_link=rules_link,
        tizer=tizer,
        tizer_link=tizer_link,
        title=title,
        topic=topic,
        address=address,
        place=place,
        short_desc=short_desc,
    )