from fastapi import APIRouter, Query, UploadFile, File, HTTPException
from typing import Optional

from app.schemas.base import Success, SuccessExtra, PageResponse, BasicResponse
from app.schemas.invoice import PaymentReceiptOut
from app.controllers.invoice import invoice_controller
from app.schemas.transactions import SendEmailRequest, SendEmailResponse
from app.services.email_client import email_client
from app.models.invoice import EmailSendLog
from app.settings.config import settings
from app.log.log import logger
import httpx


transactions_router = APIRouter(tags=["交易管理"])


@transactions_router.get("/receipts", summary="对公转账记录列表", response_model=PageResponse[PaymentReceiptOut])
async def list_receipts(
    phone: Optional[str] = Query(None),
    wechat: Optional[str] = Query(None),
    company_name: Optional[str] = Query(None),
    tax_number: Optional[str] = Query(None),
    status: Optional[str] = Query(None),
    ticket_type: Optional[str] = Query(None),
    invoice_type: Optional[str] = Query(None),
    created_at: Optional[list[int]] = Query(None),
    submitted_start: Optional[str] = Query(None),
    submitted_end: Optional[str] = Query(None),
    page: int = Query(1, ge=1),
    page_size: int = Query(10, ge=1, le=100),
):
    """
    对公转账记录列表（含提交时间、凭证与关联企业信息）
    """
    result = await invoice_controller.list_receipts(
        page=page,
        page_size=page_size,
        phone=phone,
        wechat=wechat,
        company_name=company_name,
        tax_number=tax_number,
        status=status,
        ticket_type=ticket_type,
        invoice_type=invoice_type,
        created_at=created_at,
        submitted_start=submitted_start,
        submitted_end=submitted_end,
    )
    return SuccessExtra(
        data=result["items"],
        total=result["total"],
        page=result["page"],
        page_size=result["page_size"],
        msg="获取成功",
    )


@transactions_router.get("/receipts/{id}", summary="对公转账记录详情", response_model=BasicResponse[PaymentReceiptOut])
async def get_receipt_detail(id: int):
    """
    对公转账记录详情
    """
    data = await invoice_controller.get_receipt_by_id(id)
    return Success(data=data or {}, msg="获取成功" if data else "未找到")


@transactions_router.post("/send-email", summary="发送邮件", response_model=BasicResponse[SendEmailResponse])
async def send_email(data: SendEmailRequest, file: Optional[UploadFile] = File(None)):
    if not data.email or "@" not in data.email:
        raise HTTPException(status_code=422, detail="邮箱格式不正确")
    if not data.body:
        raise HTTPException(status_code=422, detail="文案内容不能为空")

    file_bytes = None
    file_name = None
    if file is not None:
        file_bytes = await file.read()
        file_name = file.filename
    elif data.file_url:
        try:
            async with httpx.AsyncClient(timeout=10) as client:
                r = await client.get(data.file_url)
                r.raise_for_status()
                file_bytes = r.content
                file_name = data.file_url.split("/")[-1]
        except Exception as e:
            raise HTTPException(status_code=400, detail=f"附件下载失败: {e}")

    logger.info("transactions.email_send_start email={} subject={}", data.email, data.subject or "")
    result = email_client.send(data.email, data.subject, data.body, file_bytes, file_name, getattr(file, "content_type", None))

    body_summary = data.body[:500]
    status = result.get("status")
    error = result.get("error")
    log = await EmailSendLog.create(
        email=data.email,
        subject=data.subject,
        body_summary=body_summary,
        file_name=file_name,
        file_url=data.file_url,
        status=status,
        error=error,
    )
    if status == "OK":
        logger.info("transactions.email_send_ok email={}", data.email)
    else:
        logger.error("transactions.email_send_fail email={} err={}", data.email, error)

    return Success(data={"status": status, "log_id": log.id, "error": error}, msg="发送成功" if status == "OK" else "发送失败")


@transactions_router.get("/smtp-config", summary="SMTP配置状态", response_model=BasicResponse[dict])
async def smtp_config_status():
    configured = all([
        settings.SMTP_HOST,
        settings.SMTP_PORT,
        settings.SMTP_FROM,
        settings.SMTP_USERNAME,
        settings.SMTP_PASSWORD,
    ])
    data = {
        "host": bool(settings.SMTP_HOST),
        "port": bool(settings.SMTP_PORT),
        "from": bool(settings.SMTP_FROM),
        "username": bool(settings.SMTP_USERNAME),
        "password": bool(settings.SMTP_PASSWORD),
        "tls": settings.SMTP_TLS,
        "configured": configured,
    }
    return Success(data=data, msg="OK")