from typing import Optional

from pydantic import BaseModel


class PriceImpact(BaseModel):
    asset: str
    # None = window still open (live rolling peak) or no price data yet.
    # Float = sealed peak move (%) in the signal direction once window closed.
    m5: Optional[float] = None
    m15: Optional[float] = None
    m1h: Optional[float] = None
    price_at_post: float
    # None = outcome window not yet reached; True/False = signal direction matched
    correct_m5: Optional[bool] = None
    correct_m15: Optional[bool] = None
    correct_m1h: Optional[bool] = None


class TrumpPost(BaseModel):
    id: int
    text: str
    source: str
    published_at: str  # ISO
    sentiment: str
    signal: Optional[str] = None       # buy | sell | short | hold
    ai_confidence: int
    ai_reasoning: Optional[str] = None
    prefilter_reason: Optional[str] = None   # rt_only | url_only | empty | parse_error | api_error | null
    analysis_version: Optional[str] = None
    relevant: bool
    price_impact: Optional[PriceImpact] = None
    # v5 asset routing — what the bot will actually trade if signal != hold.
    # target_asset = any HL perp ticker (BTC/ETH/SOL/TRUMP/...). category
    # buckets the post's catalyst type. expected_move_pct = AI's own 1h-move
    # estimate on target_asset. All three are null on pre-v5 posts.
    target_asset: Optional[str] = None
    category: Optional[str] = None
    expected_move_pct: Optional[float] = None
    invalidation_price: Optional[float] = None

    model_config = {"from_attributes": True}


class Candle(BaseModel):
    time: int
    open: float
    high: float
    low: float
    close: float
    volume: float


class BotTrade(BaseModel):
    id: int
    asset: str
    side: str
    entry_price: float
    exit_price: float
    pnl_usd: float
    hold_seconds: int
    trigger_post_id: int
    opened_at: str
    closed_at: str
    # Source tag of the originating signal (e.g. 'truth', 'breakout', 'my_strategy').
    # Joined from posts.source on read; not stored on BotTrade itself.
    # 'unknown' when the trigger post has been deleted or trigger_post_id is null.
    trigger_source: Optional[str] = None
    # True iff this was a paper trade (hl_order_id == 'paper'). Lets the UI
    # tag the row so paper-mode P&L isn't mixed with real money in summaries.
    is_paper: bool = False

    model_config = {"from_attributes": True}


class BotPerformance(BaseModel):
    period_days: int
    total_trades: int
    win_rate: float
    net_pnl_usd: float
    avg_hold_seconds: float
    max_drawdown_pct: float


class SignedEnvelope(BaseModel):
    """Every write request carries this envelope.

    Client builds a canonical message (see app.services.signed_request.build_message)
    and signs it via EIP-191 personal_sign. Server re-builds the message from
    {action, wallet, timestamp, sha256(body)} and recovers the signer.
    """
    wallet: str
    timestamp: int       # milliseconds since epoch
    signature: str


class SubscribeRequest(SignedEnvelope):
    # Optional paper-mode flag. When true the bot writes simulated trades to
    # the DB but never hits Hyperliquid — safe path for new users to try the
    # system without risking funds. Defaults to false (live) for backwards
    # compatibility with the existing signed-message format (body=None).
    paper_mode: Optional[bool] = False


class SubscribeResponse(BaseModel):
    status:     str
    wallet:     str
    paper_mode: bool = False


class SetApiKeyRequest(SignedEnvelope):
    api_key: str     # Hyperliquid API wallet private key (0x...)


class SetApiKeyResponse(BaseModel):
    status: str
    masked_key: str  # last 6 chars only, e.g. "...a1b2c3"
    verified: bool = False


class UserSettings(BaseModel):
    leverage: int
    position_size_usd: float
    take_profit_pct: Optional[float] = None
    stop_loss_pct: Optional[float] = None
    min_confidence: int
    daily_budget_usd: Optional[float] = None
    # System-2 (bottom reversal) leverage — independent of `leverage` (Trump).
    # None → platform default (SYS2_DEFAULT_LEVERAGE). The protective stop is
    # auto-scaled to this so the position is never exchange-liquidated.
    sys2_leverage: Optional[int] = None
    # System-2 risk mode: "standard" (default) or "aggressive" (separately
    # funded high-risk/high-explosiveness sleeve). None → unchanged/standard.
    # "standard" | "aggressive" | "" (empty string = reset to default "standard")
    sys2_mode: Optional[str] = None
    # ISO-8601 UTC strings; both None = always on (Subscription.active still gates it).
    active_from: Optional[str] = None
    active_until: Optional[str] = None
    # Module on/off toggles — default False so new users start with bot idle.
    trump_enabled: Optional[bool] = None
    macro_enabled: Optional[bool] = None


class SetSettingsRequest(SignedEnvelope):
    settings: UserSettings


class UserResponse(BaseModel):
    wallet_address: str
    active: bool
    subscribed_at: Optional[str] = None
    hl_api_key_set: bool
    hl_api_key_masked: Optional[str] = None
    paper_mode: bool = False
    trades: list[BotTrade]
    settings: UserSettings
    # Convex-strategy: ISO-UTC timestamp until which the bot is manually armed.
    # When null or in the past, the regular active_from/active_until schedule applies.
    manual_window_until: Optional[str] = None