"""Pydantic-схемы (граница HTTP). Из них генерируется OpenAPI → типы фронта."""
from __future__ import annotations

from datetime import date
from typing import Literal

from pydantic import BaseModel, ConfigDict, Field

WinReason = Literal["objectives", "worlds", "plastic", "resources"]


# ─── Auth ────────────────────────────────────────────────────────────────────

class AuthConfig(BaseModel):
    # Доступные методы входа: ["telegram"] в проде, ["telegram","stub"] в деве.
    methods: list[str] = []
    telegram_bot_username: str | None = None


class TelegramAuthPayload(BaseModel):
    # Полезная нагрузка Telegram Login Widget (проверяется по HMAC).
    model_config = ConfigDict(extra="allow")
    id: int
    auth_date: int
    hash: str
    first_name: str | None = None
    last_name: str | None = None
    username: str | None = None
    photo_url: str | None = None


class TelegramRegister(TelegramAuthPayload):
    # Регистрация через Telegram с явно выбранным ником (когда тег занят/некорректен).
    # Подпись виджета проверяется по тем же полям; nickname в HMAC не входит.
    nickname: str


class DevLogin(BaseModel):
    nickname: str


class DevUserCreate(BaseModel):
    nickname: str


class DevUserRead(BaseModel):
    id: int
    nickname: str
    is_active: bool = True


class OkResponse(BaseModel):
    ok: bool = True


# ─── Справочники ─────────────────────────────────────────────────────────────

class ExpansionRead(BaseModel):
    id: int
    code: str
    name_ru: str
    is_base: bool


class FactionRead(BaseModel):
    id: int
    code: str
    name_ru: str
    expansion_id: int


class FactionRename(BaseModel):
    name_ru: str


# ─── Пользователь ────────────────────────────────────────────────────────────

class GroupBrief(BaseModel):
    id: int
    name: str
    role: str


class UserRead(BaseModel):
    id: int
    nickname: str
    role: str
    auth_provider: str
    telegram_id: int | None = None
    active_group_id: int | None = None
    bio: str | None = None
    avatar_url: str | None = None


class MeRead(UserRead):
    groups: list[GroupBrief] = []


class NicknameUpdate(BaseModel):
    nickname: str


class ProfileUpdate(BaseModel):
    bio: str | None = None


class ActiveGroupUpdate(BaseModel):
    group_id: int | None = None


class NicknameAvailable(BaseModel):
    available: bool


class UserSuggestion(BaseModel):
    """Подсказка автокомплита по нику (приглашение в группу и т.п.)."""

    user_id: int
    nickname: str
    avatar_url: str | None = None


# ─── Группы и членство ───────────────────────────────────────────────────────

class GroupCreate(BaseModel):
    name: str
    expansion_ids: list[int] = []


class GroupRename(BaseModel):
    name: str


class GroupExpansionsUpdate(BaseModel):
    expansion_ids: list[int] = []


class GroupDetail(BaseModel):
    id: int
    name: str
    owner_id: int
    my_role: str
    expansion_ids: list[int] = []


class MemberRead(BaseModel):
    user_id: int
    nickname: str
    role: str
    avatar_url: str | None = None


class MemberAdd(BaseModel):
    nickname: str


class MemberRoleUpdate(BaseModel):
    role: str


class InvitationRead(BaseModel):
    id: int
    group_id: int
    group_name: str
    invited_by_nickname: str | None = None
    created_at: str


# ─── Уведомления ───────────────────────────────────────────────────────────────

class NotificationRead(BaseModel):
    id: int
    type: str
    title: str
    body: str | None = None
    link: str | None = None
    read_at: str | None = None
    created_at: str


class NotificationList(BaseModel):
    items: list[NotificationRead]
    unread_count: int


class NotificationMarkRead(BaseModel):
    ids: list[int] | None = None


# ─── Партии ──────────────────────────────────────────────────────────────────

class RandomizeRequest(BaseModel):
    group_id: int
    exclude_faction_ids: list[int] = []


class RandomizeResponse(BaseModel):
    faction: FactionRead


# Этап 1 (старт): только ростер, без мест.
class RosterParticipant(BaseModel):
    user_id: int
    faction_id: int
    was_random: bool = False


class MatchCreate(BaseModel):
    group_id: int
    participants: list[RosterParticipant]


# Этап 2 (завершение): места, комментарии, причина победы.
class MatchFinishParticipant(BaseModel):
    user_id: int
    place: int | None = Field(default=None, ge=1)  # None у выбывшего (eliminated)
    eliminated: bool = False  # выбыл из партии → авто-проставится последнее место
    comment: str | None = None
    faction_id: int | None = None  # опц. смена фракции при завершении


class MatchFinish(BaseModel):
    participants: list[MatchFinishParticipant]
    win_reason: WinReason
    overall_comment: str | None = None
    # Оптимистичная блокировка: версия партии, которую видел клиент (см. MatchRead.version).
    expected_version: str | None = None


# Полный участник (правка завершённой партии админом).
class ParticipantInput(BaseModel):
    user_id: int
    faction_id: int
    place: int | None = Field(default=None, ge=1)  # None у выбывшего (eliminated)
    eliminated: bool = False
    was_random: bool = False
    comment: str | None = None


class MatchUpdate(BaseModel):
    played_at: date | None = None
    overall_comment: str | None = None
    win_reason: WinReason | None = None
    participants: list[ParticipantInput] | None = None
    expected_version: str | None = None  # оптимистичная блокировка


class MatchParticipantRead(BaseModel):
    user_id: int
    nickname: str
    faction_id: int
    faction_name: str
    place: int | None = None
    eliminated: bool = False
    was_random: bool
    comment: str | None = None
    avatar_url: str | None = None


class AttachmentRead(BaseModel):
    id: int
    kind: str  # 'photo' (задел под видео)
    url: str
    mime_type: str
    size_bytes: int
    created_at: str


class MatchRead(BaseModel):
    id: int
    group_id: int
    status: str
    played_at: date
    started_at: str | None = None
    finished_at: str | None = None
    duration_minutes: int | None = None
    win_reason: WinReason | None = None
    player_count: int
    overall_comment: str | None = None
    created_by: int
    can_modify: bool = False  # может ли текущий зритель править/завершать партию
    version: str  # для оптимистичной блокировки (iso updated_at); клиент шлёт обратно
    participants: list[MatchParticipantRead] = []
    attachments: list[AttachmentRead] = []


# ─── Статистика ──────────────────────────────────────────────────────────────

class OverallStats(BaseModel):
    games: int
    wins: int
    win_rate: float
    avg_place: float | None = None
    score: float | None = None


class LeaderboardEntry(OverallStats):
    user_id: int
    nickname: str
    rank: int | None = None
    avatar_url: str | None = None


class Leaderboard(BaseModel):
    entries: list[LeaderboardEntry] = []
    provisional: list[LeaderboardEntry] = []
    min_games: int


class FactionStat(BaseModel):
    faction_id: int
    code: str
    name_ru: str
    expansion_code: str
    games: int
    wins: int
    win_rate: float
    avg_place: float | None = None
    score: float | None = None


class RecentFormItem(BaseModel):
    place: int
    player_count: int
    played_at: str


class ProfileStats(BaseModel):
    user_id: int
    overall: OverallStats
    factions: list[FactionStat] = []
    best_faction: FactionStat | None = None
    worst_faction: FactionStat | None = None
    most_played_faction: FactionStat | None = None
    recent_form: list[RecentFormItem] = []
    # Порог «Новичков» (MIN_GAMES) — чтобы UI единообразно подсвечивал
    # неподтверждённый рейтинг, не дублируя константу на фронте.
    min_games: int = 0


class PublicProfile(BaseModel):
    # Профиль другого игрока (read-only): шапка + глобальная статистика.
    user_id: int
    nickname: str
    bio: str | None = None
    avatar_url: str | None = None
    stats: ProfileStats


class FactionMeta(BaseModel):
    faction_id: int
    code: str
    name_ru: str
    games: int
    wins: int
    available: bool


class GroupStats(BaseModel):
    group_id: int
    total_matches: int
    last_match_at: str | None = None
    leaderboard: list[LeaderboardEntry] = []
    provisional: list[LeaderboardEntry] = []
    inactive: list[LeaderboardEntry] = []  # участники без завершённых партий
    faction_meta: list[FactionMeta] = []
    min_games: int


class MatchListParticipant(BaseModel):
    user_id: int
    nickname: str
    faction_id: int
    faction_name: str
    place: int | None = None
    eliminated: bool = False
    was_random: bool
    comment: str | None = None


class MatchListItem(BaseModel):
    id: int
    status: str
    played_at: str
    started_at: str | None = None
    finished_at: str | None = None
    duration_minutes: int | None = None
    win_reason: WinReason | None = None
    player_count: int
    overall_comment: str | None = None
    created_by: int
    participants: list[MatchListParticipant] = []


class MatchList(BaseModel):
    items: list[MatchListItem] = []
    total: int
    limit: int
    offset: int


class GroupBriefStats(OverallStats):
    id: int
    name: str


class HomeInProgressMatch(BaseModel):
    id: int
    group_id: int
    group_name: str
    started_at: str | None = None
    player_count: int
    participants: list[MatchListParticipant] = []


class HomeResponse(BaseModel):
    leaderboard: list[LeaderboardEntry] = []
    provisional: list[LeaderboardEntry] = []
    profile: ProfileStats
    active_group: GroupBriefStats | None = None
    in_progress: list[HomeInProgressMatch] = []
    min_games: int


# ─── Админ ───────────────────────────────────────────────────────────────────

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


class AdminMe(BaseModel):
    id: int
    nickname: str
    role: str


class AdminUserRead(BaseModel):
    id: int
    nickname: str
    role: str
    is_active: bool
    auth_provider: str
    telegram_id: int | None = None
    created_at: str


class AdminUserUpdate(BaseModel):
    nickname: str | None = None
    is_active: bool | None = None


class AdminGroupRead(BaseModel):
    id: int
    name: str
    owner_id: int
    created_at: str


class AdminMatchRead(BaseModel):
    id: int
    group_id: int
    group_name: str | None = None
    status: str
    played_at: str
    duration_minutes: int | None = None
    win_reason: WinReason | None = None
    player_count: int
    created_by: int
    created_at: str


class AchievementRead(BaseModel):
    slug: str
    name: str
    description: str = ""
    condition: str = ""  # текст condition.py (задел; не исполняется)
    has_condition: bool = False
    icon_url: str | None = None


class AchievementCreate(BaseModel):
    name: str
    description: str | None = None
    condition: str | None = None


class AchievementUpdate(BaseModel):
    name: str | None = None
    description: str | None = None
    condition: str | None = None


class AuditLogItem(BaseModel):
    id: int
    actor_id: int | None = None
    action: str
    entity_type: str
    entity_id: int | None = None
    payload: dict | None = None
    ip: str | None = None
    user_agent: str | None = None
    created_at: str


class AuditLogList(BaseModel):
    items: list[AuditLogItem] = []
    limit: int
    offset: int