from typing import List, Optional

from pydantic import BaseModel, ConfigDict, Field
from pydantic.alias_generators import to_camel

from app.schemas.bx.common import DatetimeToStr, OptDatetimeToStr


class WalletSummaryOut(BaseModel):
    model_config = ConfigDict(from_attributes=True, populate_by_name=True, alias_generator=to_camel)

    id: str
    owner_user_id: str
    owner_user_name: str
    total_amount: float
    used_amount: float
    balance: float
    invoice_count: int
    version: int
    create_time: Optional[DatetimeToStr] = None
    update_time: OptDatetimeToStr = None


class LedgerOut(BaseModel):
    model_config = ConfigDict(from_attributes=True, populate_by_name=True, alias_generator=to_camel)

    id: str
    owner_user_id: str
    entry_type: str
    amount: float
    invoice_id: Optional[str] = None
    reimburse_id: Optional[str] = None
    ref_ledger_id: Optional[str] = None
    remark: Optional[str] = None
    create_time: DatetimeToStr


class InvoiceAttachmentOut(BaseModel):
    model_config = ConfigDict(from_attributes=True, populate_by_name=True, alias_generator=to_camel)

    id: str
    file_name: Optional[str] = None
    file_path: Optional[str] = None
    file_type: Optional[str] = None


class InvoiceOut(BaseModel):
    model_config = ConfigDict(from_attributes=True, populate_by_name=True, alias_generator=to_camel)

    id: str
    owner_user_id: str
    owner_user_name: str
    amount: float
    upload_by: Optional[str] = None
    upload_by_name: Optional[str] = None
    remark: Optional[str] = None
    create_time: DatetimeToStr
    update_time: OptDatetimeToStr = None
    # 兼容旧前端：取首个附件
    attachment_id: Optional[str] = None
    file_name: Optional[str] = None
    file_path: Optional[str] = None
    file_type: Optional[str] = None
    attachments: List[InvoiceAttachmentOut] = Field(default_factory=list)