# File: backend/schemas.py
from pydantic import BaseModel, EmailStr
from typing import Optional, List
from datetime import datetime

class UserBase(BaseModel):
    email: EmailStr

class UserCreate(UserBase):
    password: str

class UserResponse(UserBase):
    id: int
    email: str
    is_active: bool
    is_frozen: bool
    role: str
    mfa_enabled: bool
    ui_theme: str    
    font_size: str   
    auto_sync: bool
    disabled_defaults: Optional[str] = "" # <--- NEW
    class Config: from_attributes = True
        
class UserSettingsUpdate(BaseModel):
    mfa_enabled: bool
    ui_theme: str
    font_size: str
    auto_sync: bool  
    disabled_defaults: str # <--- NEW

# --- NEW: CUSTOM RULES SCHEMAS ---
class CustomRuleBase(BaseModel):
    category_name: str
    keywords: str

class CustomRuleResponse(CustomRuleBase):
    id: int
    class Config: from_attributes = True

class VerifyOTPRequest(BaseModel):
    email: EmailStr
    otp: str

class Token(BaseModel):
    access_token: str
    token_type: str

class FolderSelectRequest(BaseModel):
    folder_id: str
    folder_name: str

class IndexedFolderResponse(BaseModel):
    id: int
    drive_id: int
    folder_id: str
    folder_name: str
    is_sorting: bool
    
    # Define the fields
    total_files: int = 0
    sorted_files: int = 0

    class Config:
        from_attributes = True # This replaces the deprecated 'orm_mode'

    # Use a model_validator to calculate the fields from the ORM object
    @classmethod
    def model_validate(cls, obj, *args, **kwargs):
        # Let Pydantic perform the base validation
        instance = super().model_validate(obj, *args, **kwargs)
        
        # Manually inject the counts from the SQLAlchemy relationship
        if hasattr(obj, 'files'):
            instance.total_files = len(obj.files)
            instance.sorted_files = sum(1 for f in obj.files if getattr(f, 'is_sorted', False))
        
        return instance

class ShareRequestCreate(BaseModel):
    receiver_email: EmailStr
    folder_id: int
    expires_in_days: Optional[int] = None 

class ShareRequestResponse(BaseModel):
    id: int
    sender_email: str
    folder_name: str
    status: str
    created_at: datetime
    expires_at: Optional[datetime] 
    class Config: from_attributes = True

class RespondToShare(BaseModel):
    request_id: int
    accept: bool 

class SharedUserResponse(BaseModel):
    access_id: int
    user_email: str
    access_level: str
    expires_at: Optional[datetime]

class ReportCreate(BaseModel):
    reported_email: EmailStr
    reason: str
    description: Optional[str] = None

class AppealCreate(BaseModel):
    email: EmailStr
    reason: str
    description: str

class ReportResponse(BaseModel):
    id: int
    type: str 
    reporter_email: Optional[str]
    reported_user_email: Optional[str]
    reason: str
    description: Optional[str]
    status: str
    admin_response: Optional[str]
    created_at: datetime
    class Config: from_attributes = True

class ResolveReportRequest(BaseModel):
    response: str 

class ForgotPasswordRequest(BaseModel):
    email: EmailStr

class ResetPasswordRequest(BaseModel):
    email: EmailStr
    otp: str
    new_password: str

class AdminUserDetail(BaseModel):
    user: UserResponse
    drives: List[dict] 

class LogResponse(BaseModel):
    id: int
    user_email: str
    action: str
    details: str
    timestamp: datetime
    undo_payload: Optional[str] = None
    class Config: from_attributes = True

class BanRequest(BaseModel):
    email: EmailStr
    reason: str

class NotificationResponse(BaseModel):
    id: int
    message: str
    is_read: bool
    created_at: datetime
    class Config: from_attributes = True

class BlacklistResponse(BaseModel):
    id: int
    email: str
    reason: str
    banned_by: str
    banned_at: datetime
    class Config: from_attributes = True

class PromptTemplateBase(BaseModel):
    name: str
    prompt_text: str

class PromptTemplateCreate(PromptTemplateBase):
    pass

class PromptTemplateResponse(PromptTemplateBase):
    id: int
    user_id: int
    created_at: datetime

    class Config:
        from_attributes = True

class NaturalLanguageSortRequest(BaseModel):
    prompt_text: str