"""Request/response models for the accounts API (SPEC §9.1)."""

from __future__ import annotations

import uuid
from typing import Literal

from pydantic import BaseModel, Field

# How much history to import at account setup (SPEC §12 M2).
SyncWindow = Literal["all", "3months", "new"]


class ServerConfigIn(BaseModel):
    host: str
    port: int = Field(ge=1, le=65535)
    tls: str = "ssl"  # ssl | starttls
    auth: str = "password"  # password | oauth2


class DiscoverRequest(BaseModel):
    email: str


class HelpBlockOut(BaseModel):
    help_id: str
    deep_link: str
    app_name_hint: str = ""
    steps: list[str] = []
    docs_url: str = ""
    setup_link: str = ""
    button_after_step: int = 0


class CandidateOut(BaseModel):
    imap: ServerConfigIn
    smtp: ServerConfigIn
    source: str
    oauth_provider: str | None = None
    auth_strategy: list[str] = ["password"]
    help: HelpBlockOut | None = None


class DiscoveryStepOut(BaseModel):
    method: str
    status: str
    detail: str = ""


class DiscoverResponse(BaseModel):
    candidates: list[CandidateOut]
    steps: list[DiscoveryStepOut]
    # Whether the wizard may offer the Google OAuth fallback (SPEC §6.2.1).
    google_oauth_enabled: bool = False


class TestRequest(BaseModel):
    imap: ServerConfigIn
    smtp: ServerConfigIn
    email: str
    username: str | None = None  # defaults to the email address
    password: str = Field(min_length=1)


class TestResponse(BaseModel):
    ok: bool = True


class CreateAccountRequest(BaseModel):
    email: str
    display_name: str = ""
    color: str = "#888888"
    imap: ServerConfigIn
    smtp: ServerConfigIn
    username: str | None = None
    password: str = Field(min_length=1)
    sync_window: SyncWindow = "all"
    sync_spam: bool = False


class UpdateAccountRequest(BaseModel):
    display_name: str | None = None
    color: str | None = None
    signature: str | None = None
    sync_window: SyncWindow | None = None
    # Connection/credential changes require the password (re-validated + re-encrypted).
    imap: ServerConfigIn | None = None
    smtp: ServerConfigIn | None = None
    password: str | None = None


class AccountDetailOut(BaseModel):
    id: uuid.UUID
    email: str
    display_name: str
    color: str
    state: str
    state_detail: str
    signature: str
    sync_window: str
    backfill_total: int
    backfill_done: int
    imap_config: dict[str, object]
    smtp_config: dict[str, object]