"""Compose/draft/send request & response models (SPEC §9.1)."""

from __future__ import annotations

import uuid

from pydantic import BaseModel


class DraftPayload(BaseModel):
    to: list[str] = []
    cc: list[str] = []
    bcc: list[str] = []
    subject: str = ""
    html: str = ""
    text: str = ""
    attachment_ids: list[uuid.UUID] = []


class DraftIn(BaseModel):
    account_id: uuid.UUID
    thread_id: uuid.UUID | None = None
    reply_to_message_id: uuid.UUID | None = None
    kind: str = "new"  # reply | reply_all | forward | new
    payload: DraftPayload


class DraftOut(BaseModel):
    id: uuid.UUID
    account_id: uuid.UUID
    thread_id: uuid.UUID | None
    reply_to_message_id: uuid.UUID | None
    kind: str
    payload: dict[str, object]
    updated_at: str


class RemoteDraftOut(BaseModel):
    """A draft found in the account's IMAP Drafts folder (created on another client)."""

    message_id: uuid.UUID
    account_id: uuid.UUID
    imap_uid: int
    subject: str
    to: list[str]
    cc: list[str]
    bcc: list[str]
    snippet: str
    updated_at: str


class SendRequest(BaseModel):
    draft_id: uuid.UUID


class SendResponse(BaseModel):
    outbox_id: uuid.UUID
    undo_until: str
    # The same deadline as seconds from now: the browser counts down from this,
    # since its clock may be seconds off the server's.
    undo_seconds: float


class OutboxStateOut(BaseModel):
    outbox_id: uuid.UUID
    state: str


class OutboxItemOut(BaseModel):
    """A send waiting in the Scheduled folder: being retried, or failed for good."""

    outbox_id: uuid.UUID
    draft_id: uuid.UUID
    account_id: uuid.UUID
    state: str  # "retrying" | "failed"
    attempts: int
    error: str | None
    next_attempt_at: str | None
    retry_until: str | None
    sent_at: str  # when Send was pressed (the end of the undo window)
    to: list[str]
    subject: str
    preview: str