"""资产相关 Schema（请求/响应模型）

设计说明：
- *In 系列：详情表输入模型（不含 id/asset_id，由服务端填充）
- AssetCreate/AssetUpdate：主表字段 + 按类型嵌套的可选 detail
- AssetRead：完整输出，含计算字段 days_to_expiry（距到期天数）
"""

from datetime import date, datetime
from typing import Optional

from sqlmodel import SQLModel

from app.models.asset import AssetStatus, AssetType


# --------------------------------------------------------------------------- #
# 详情表输入模型
# --------------------------------------------------------------------------- #
class VPSDetailIn(SQLModel):
    """VPS 详情输入"""

    ip_address: str
    tailscale_ip: Optional[str] = None
    region: Optional[str] = None
    os: Optional[str] = None
    cpu_cores: int = 1
    memory_gb: float = 1
    disk_gb: int = 20
    bandwidth_gb: Optional[int] = None
    ssh_port: int = 22
    panel_url: Optional[str] = None
    ssh_user: Optional[str] = None
    login_method: Optional[str] = "key"
    ssh_key: Optional[str] = None  # 明文输入，服务端加密存储
    password: Optional[str] = None  # 明文输入，服务端加密存储
    purpose: Optional[str] = None


class DomainDetailIn(SQLModel):
    """域名详情输入"""

    domain_name: str
    registrar: Optional[str] = None
    dns_provider: Optional[str] = None
    cloudflare_account: Optional[str] = None
    is_using: bool = True
    redirect_target: Optional[str] = None
    bind_asset_id: Optional[int] = None


class AIAccountIn(SQLModel):
    """AI 账号详情输入"""

    provider: str
    api_key: Optional[str] = None
    plan: Optional[str] = None
    balance: Optional[float] = None
    currency: str = "USD"
    monthly_usage: Optional[float] = None
    monthly_limit: Optional[float] = None


# --------------------------------------------------------------------------- #
# 资产主表模型
# --------------------------------------------------------------------------- #
class AssetBase(SQLModel):
    """资产主表公共字段"""

    name: str
    asset_type: AssetType
    provider: str
    provider_id: Optional[int] = None
    renewal_cycle: Optional[str] = None
    renew_url: Optional[str] = None
    cancel_url: Optional[str] = None
    account: Optional[str] = None
    expiry_date: Optional[date] = None
    auto_renew: bool = False
    cost: float = 0
    currency: str = "USD"
    status: AssetStatus = AssetStatus.ACTIVE
    is_archived: bool = False
    remark: Optional[str] = None


class AssetCreate(AssetBase):
    """创建资产：按 asset_type 携带对应 detail"""

    vps_detail: Optional[VPSDetailIn] = None
    domain_detail: Optional[DomainDetailIn] = None
    ai_detail: Optional[AIAccountIn] = None


class AssetUpdate(SQLModel):
    """更新资产：所有字段可选，仅更新传入项"""

    name: Optional[str] = None
    asset_type: Optional[AssetType] = None
    provider: Optional[str] = None
    provider_id: Optional[int] = None
    renewal_cycle: Optional[str] = None
    renew_url: Optional[str] = None
    cancel_url: Optional[str] = None
    account: Optional[str] = None
    expiry_date: Optional[date] = None
    auto_renew: Optional[bool] = None
    cost: Optional[float] = None
    currency: Optional[str] = None
    status: Optional[AssetStatus] = None
    is_archived: Optional[bool] = None
    remark: Optional[str] = None
    vps_detail: Optional[VPSDetailIn] = None
    domain_detail: Optional[DomainDetailIn] = None
    ai_detail: Optional[AIAccountIn] = None


# --------------------------------------------------------------------------- #
# 输出模型
# --------------------------------------------------------------------------- #
class VPSDetailRead(SQLModel):
    """VPS 详情输出（不含敏感明文，仅返回凭证存在标记）"""

    id: int
    asset_id: int
    ip_address: str
    tailscale_ip: Optional[str] = None
    region: Optional[str] = None
    os: Optional[str] = None
    cpu_cores: int = 1
    memory_gb: float = 1
    disk_gb: int = 20
    bandwidth_gb: Optional[int] = None
    ssh_port: int = 22
    panel_url: Optional[str] = None
    ssh_user: Optional[str] = None
    login_method: Optional[str] = "key"
    purpose: Optional[str] = None
    has_ssh_key: bool = False
    has_password: bool = False


class DomainDetailRead(DomainDetailIn):
    id: int
    asset_id: int


class AIAccountRead(SQLModel):
    """AI 账号输出（不暴露 API Key 明文，仅返回 has_api_key）"""

    id: int
    asset_id: int
    provider: str
    plan: Optional[str] = None
    balance: Optional[float] = None
    currency: str = "USD"
    monthly_usage: Optional[float] = None
    monthly_limit: Optional[float] = None
    last_synced_at: Optional[datetime] = None
    has_api_key: bool = False


class AssetRead(AssetBase):
    """资产完整输出"""

    id: int
    created_at: datetime
    updated_at: datetime
    days_to_expiry: Optional[int] = None
    provider_name: Optional[str] = None
    vps_detail: Optional[VPSDetailRead] = None
    domain_detail: Optional[DomainDetailRead] = None
    ai_detail: Optional[AIAccountRead] = None