"""接口请求与响应。金额在 JSON 里用字符串，避免浮点误差。"""

from __future__ import annotations

from datetime import date, datetime
from decimal import Decimal
from typing import Annotated

from pydantic import BaseModel, ConfigDict, Field, PlainSerializer

from app.models import DatacenterStatus, NodeStatus, OrderStatus, TaskStatus, UserRole, WithdrawalStatus, YieldStatus

SN = Annotated[str, Field(min_length=4, max_length=64, pattern=r"^[A-Za-z0-9_-]+$")]
WALLET = Annotated[str, Field(min_length=4, max_length=128, pattern=r"^[A-Za-z0-9:_-]+$")]
USERNAME = Annotated[str, Field(min_length=3, max_length=32, pattern=r"^[A-Za-z0-9_]+$")]
MoneyText = Annotated[Decimal, PlainSerializer(lambda value: format(value, "f"), return_type=str)]


class APIModel(BaseModel):
    model_config = ConfigDict(from_attributes=True)


class UserCreate(APIModel):
    wallet_address: WALLET


class UserOut(APIModel):
    id: int
    wallet_address: str
    username: str | None = None
    role: UserRole = UserRole.USER
    created_at: datetime


class RegisterIn(APIModel):
    wallet_address: WALLET
    username: USERNAME | None = None
    password: str | None = Field(default=None, max_length=72)


class LoginIn(APIModel):
    wallet_address: str | None = Field(default=None, max_length=128)
    username: str | None = Field(default=None, max_length=32)
    password: str | None = Field(default=None, max_length=72)


class TokenOut(APIModel):
    access_token: str
    token_type: str = "bearer"
    role: UserRole
    wallet_address: str
    username: str | None = None


class AdminUserOut(APIModel):
    id: int
    wallet_address: str
    username: str | None
    role: UserRole
    created_at: datetime
    node_count: int
    available_points: MoneyText


class NodeCreate(APIModel):
    wallet_address: WALLET
    sn: SN
    purchase_amount: Decimal = Field(gt=0, max_digits=24, decimal_places=8)
    callback_url: str | None = None


class NodeOut(APIModel):
    id: int
    user_id: int
    sn: str
    node_index: int = 0
    display_node_id: int = 0
    genesis: bool = False
    purchase_amount: MoneyText
    license_months: int
    licensed_at: datetime
    license_expires_at: datetime
    status: NodeStatus
    last_heartbeat_at: datetime | None
    callback_url: str | None
    gpu_model: str | None = None
    vram_gb: float | None = None
    cpu_count: int | None = None
    memory_gb: float | None = None
    hardware_weight: float = 0.05
    gpu_generation: str = "10"
    recovery_days: int = 540
    generation_locked: bool = False
    recoverable_stake_amount: MoneyText | None = None
    is_whitelist: bool = False
    client_ip: str | None = None
    hardware_fingerprint: str | None = None


class NodeView(NodeOut):
    wallet_address: str
    online_rate: MoneyText = Decimal("0")
    today_points: MoneyText = Decimal("0")
    node_token: str | None = None
    activated: bool = False


class HeartbeatIn(APIModel):
    sn: SN
    token: str | None = Field(default=None, max_length=128)
    gpu_model: str | None = Field(default=None, max_length=128)
    vram_gb: float | None = Field(default=None, ge=0, le=1024)
    cpu_count: int | None = Field(default=None, ge=1, le=1024)
    memory_gb: float | None = Field(default=None, ge=0, le=4096)
    hardware_fingerprint: str | None = Field(default=None, max_length=64, pattern=r"^[a-fA-F0-9]{64}$")


class HeartbeatOut(APIModel):
    sn: str
    display_node_id: int = 0
    status: NodeStatus
    last_heartbeat_at: datetime
    server_time: datetime
    hardware_weight: float = 0.05
    gpu_generation: str = "10"
    recovery_days: int = 540
    recoverable_stake_amount: MoneyText | None = None
    purchase_amount: MoneyText | None = None
    estimated_daily_points: MoneyText | None = None


class TaskOut(APIModel):
    task_id: str
    task_type: str
    payload: dict
    status: TaskStatus
    dispatched_at: datetime
    deadline_at: datetime


class TaskReportIn(APIModel):
    sn: SN
    task_id: str = Field(min_length=36, max_length=36)
    success: bool
    nonce: str = Field(min_length=8, max_length=128)
    token: str | None = Field(default=None, max_length=128)


class ContributionOut(APIModel):
    sn: str
    yield_date: date
    eligible: bool
    online_seconds: int
    eligible_seconds: int
    online_rate: MoneyText
    tasks_dispatched: int
    tasks_completed: int
    task_response_rate: MoneyText
    online_weight: MoneyText
    task_weight: MoneyText
    performance: MoneyText
    compute_output: MoneyText
    points_delta: MoneyText
    cycle_days: int


class YieldOut(APIModel):
    id: int
    node_id: int
    user_id: int
    yield_date: date
    compute_output: MoneyText
    points_delta: MoneyText
    online_seconds: int
    eligible_seconds: int
    online_rate: MoneyText
    tasks_dispatched: int
    tasks_completed: int
    task_response_rate: MoneyText
    online_weight: MoneyText
    task_weight: MoneyText
    performance: MoneyText
    cycle_days: int
    status: YieldStatus
    is_partial: bool
    created_at: datetime


class SettleOut(APIModel):
    yield_date: date
    created: int
    skipped: int
    total_points: MoneyText
    is_partial: bool


class WithdrawalCreate(APIModel):
    wallet_address: WALLET
    amount: Decimal = Field(gt=0, max_digits=24, decimal_places=8)
    asset_symbol: str = Field(default="POINT", min_length=1, max_length=32)


class MeWithdrawalCreate(APIModel):
    amount: Decimal = Field(gt=0, max_digits=24, decimal_places=8)
    asset_symbol: str = Field(default="POINT", min_length=1, max_length=32)


class MeNodeCreate(APIModel):
    sn: SN
    purchase_amount: Decimal = Field(gt=0, max_digits=24, decimal_places=8)
    callback_url: str | None = None


class OrderCreate(APIModel):
    tx_id: str = Field(min_length=6, max_length=128, pattern=r"^[A-Za-z0-9]+$")


class OrderOut(APIModel):
    id: int
    user_id: int
    amount: MoneyText
    asset_symbol: str
    status: OrderStatus
    tx_id: str
    created_at: datetime
    reviewed_at: datetime | None = None
    sn: str | None = None
    display_node_id: int | None = None


class OrderView(OrderOut):
    wallet_address: str


class WithdrawalConfirm(APIModel):
    tx_hash: str = Field(min_length=6, max_length=128, pattern=r"^[A-Za-z0-9]+$")


class WithdrawalReject(APIModel):
    note: str | None = Field(default=None, max_length=500)


class WithdrawalOut(APIModel):
    id: int
    user_id: int
    amount: MoneyText
    asset_symbol: str
    tx_hash: str | None
    status: WithdrawalStatus
    note: str | None
    available_after: MoneyText | None = None
    created_at: datetime
    updated_at: datetime


class WithdrawalView(WithdrawalOut):
    wallet_address: str


class BalanceOut(APIModel):
    wallet_address: str
    available_points: MoneyText


class SummaryOut(APIModel):
    users: int
    nodes: int
    online: int
    offline: int
    authorized_amount: MoneyText
    settled_points: MoneyText
    pending_withdrawals: MoneyText


class DashboardOut(APIModel):
    wallet_address: str
    username: str | None
    role: UserRole
    available_points: MoneyText
    settled_points: MoneyText
    today_points: MoneyText
    license_price: MoneyText
    license_asset: str
    network_nodes: int = 0
    network_online: int = 0
    nodes: list[NodeView]
    orders: list[OrderOut]
    withdrawals: list[WithdrawalOut]
    datacenter_applications: list[DatacenterOut] = []


class WhitelistToggle(APIModel):
    is_whitelist: bool


class IPWhitelistCreate(APIModel):
    ip_address: str = Field(min_length=3, max_length=64)
    note: str | None = Field(default=None, max_length=128)


class IPWhitelistOut(APIModel):
    id: int
    ip_address: str
    note: str | None = None
    created_at: datetime


class DatacenterApply(APIModel):
    contact: str = Field(min_length=4, max_length=128)
    node_count: int = Field(ge=1, le=10000)
    subnet_ip: str = Field(min_length=3, max_length=64)
    hardware_proof: str = Field(min_length=4, max_length=2000)
    gpu_generation: str = Field(pattern=r"^(10|30|40)$")


class DatacenterOut(APIModel):
    id: int
    user_id: int
    contact: str
    node_count: int
    subnet_ip: str
    hardware_proof: str
    gpu_generation: str
    status: DatacenterStatus
    note: str | None = None
    created_at: datetime
    reviewed_at: datetime | None = None


class DatacenterView(DatacenterOut):
    wallet_address: str


DashboardOut.model_rebuild()