93 lines
3.1 KiB
Python
93 lines
3.1 KiB
Python
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"""标签打印 API — 预览 / 执行 / 打印机配置"""
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from fastapi import APIRouter, HTTPException, status
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from pydantic import BaseModel, Field
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from app.services.label_service import generate_preview_image, send_to_printer
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from app.services.print_config import PrintConfigManager
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router = APIRouter(prefix="/print", tags=["标签打印"])
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# ============================================================
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# 请求体
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# ============================================================
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class LabelPreviewRequest(BaseModel):
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serial_number: str = Field(..., min_length=1, description="16位HEX系统ID（二维码内容）")
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material_name: str = Field("", description="物料名称")
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spec_model: str = Field("", description="规格型号")
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order_no: str = Field("", description="订单号（条件渲染）")
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class PrintExecuteRequest(LabelPreviewRequest):
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copies: int = Field(1, ge=1, le=100, description="打印份数")
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printer_ip: str | None = Field(None, description="覆盖配置的打印机 IP")
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printer_port: int | None = Field(None, description="覆盖配置的打印机端口")
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class PrinterConfigUpdate(BaseModel):
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ip: str = Field(..., description="打印机 IP 地址")
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port: int = Field(9100, ge=1, le=65535, description="打印机端口")
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enabled: bool = Field(True, description="是否启用")
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# ============================================================
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# 端点
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# ============================================================
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@router.post("/preview")
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def print_preview(data: LabelPreviewRequest) -> dict:
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"""生成标签预览图（Base64 JPEG）"""
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try:
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data_url = generate_preview_image(**data.model_dump())
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return {"data_url": data_url}
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except Exception as e:
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"生成预览失败: {str(e)}",
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)
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@router.post("/execute")
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def print_execute(data: PrintExecuteRequest) -> dict:
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"""发送打印指令到物理打标机"""
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payload = data.model_dump()
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copies = payload.pop("copies", 1)
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printer_ip = payload.pop("printer_ip", None)
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printer_port = payload.pop("printer_port", None)
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result = send_to_printer(
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copies=copies,
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printer_ip=printer_ip,
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printer_port=printer_port,
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**payload,
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)
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if not result["success"]:
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raise HTTPException(
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status_code=status.HTTP_502_BAD_GATEWAY,
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detail=result["message"],
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)
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return result
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@router.get("/config")
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def get_printer_config() -> dict:
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"""获取打印机当前配置"""
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return PrintConfigManager.get_config()
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@router.post("/config")
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def update_printer_config(data: PrinterConfigUpdate) -> dict:
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"""更新打印机配置（IP/端口）"""
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current = PrintConfigManager.get_config()
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current["label_printer"] = {
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"ip": data.ip,
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"port": data.port,
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"enabled": data.enabled,
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}
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PrintConfigManager.save_config(current)
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return {
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"message": "打印机配置已更新",
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"config": current["label_printer"],
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}
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