from pydantic import BaseModel
from typing import Optional, List

class LoginRequest(BaseModel):
    username: str
    password: str

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

class Attachment(BaseModel):
    part_id: str
    filename: str
    content_type: str
    size: int

class MailSummary(BaseModel):
    uid: str
    subject: str
    sender: str
    sender_addr: str
    date: str
    is_read: bool
    has_attachment: bool
    size: int
    preview: str = ""

class MailDetail(BaseModel):
    uid: str
    subject: str
    sender: str
    sender_addr: str
    to: str
    cc: str = ""
    date: str
    body_text: str = ""
    body_html: str = ""
    attachments: List[Attachment] = []
    is_read: bool = True

class FolderInfo(BaseModel):
    name: str
    display: str
    unread: int = 0
    total: int = 0

class MailListResponse(BaseModel):
    messages: List[MailSummary]
    total: int
    page: int
    per_page: int

class SendRequest(BaseModel):
    to: str
    cc: Optional[str] = None
    bcc: Optional[str] = None
    subject: str
    body: str
    is_html: bool = False
    reply_to_uid: Optional[str] = None

class MoveRequest(BaseModel):
    target_folder: str

class ErrorResponse(BaseModel):
    detail: str