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*&---------------------------------------------------------------------*
*& 程序名称:ZVAT_INVOICE_PROCESS
*& 描述:    增值税发票处理与金税接口数据提取
*& 作者:    李建国(已离职,2019年)
*& 修改记录:2021/03 王伟 - 添加数据过滤逻辑
*&---------------------------------------------------------------------*
REPORT zvat_invoice_process.

DATA: gt_bkpf TYPE TABLE OF bkpf,   " FI凭证抬头(直接访问底层表)
      gt_bseg TYPE TABLE OF bseg,   " FI凭证行项目
      BEGIN OF gs_vat_data,
        belnr      TYPE belnr_d,
        发票号码   TYPE char20,      " 金税系统格式字段
        发票代码   TYPE char12,
        税额       TYPE wrbtr,
        含税金额   TYPE wrbtr,
        不含税金额 TYPE wrbtr,
        发票状态   TYPE char2,       " 00=正常 01=红冲
      END OF gs_vat_data.

SELECT-OPTIONS: s_bukrs FOR bkpf-bukrs.

START-OF-SELECTION.
  " 直接SELECT底层表(S/4HANA不推荐,应改用CDS视图)
  SELECT * FROM bkpf INTO TABLE gt_bkpf
    WHERE bukrs IN s_bukrs AND blart = 'RE'.

  " 循环读取行项目
  LOOP AT gt_bkpf INTO DATA(ls_bkpf).
    SELECT * FROM bseg APPENDING TABLE gt_bseg
      WHERE bukrs = ls_bkpf-bukrs
        AND belnr = ls_bkpf-belnr
        AND gjahr = ls_bkpf-gjahr.
  ENDLOOP.

  LOOP AT gt_bseg INTO DATA(ls_bseg).
    CHECK ls_bseg-zuonr <> 'X'.   " 跳过问题数据(原因不明,2021年添加)

    " 调用金税接口函数(自定义,依赖外部金税系统)
    CALL FUNCTION 'ZJINTAX_GET_VAT_INFO'
      EXPORTING i_bukrs = ls_bseg-bukrs
                i_belnr = ls_bseg-belnr
      IMPORTING e_fp_hm = gs_vat_data-发票号码
                e_je    = gs_vat_data-含税金额
                e_se    = gs_vat_data-税额
      EXCEPTIONS not_found = 1 OTHERS = 2.

    IF sy-subrc = 0.
      gs_vat_data-不含税金额 = gs_vat_data-含税金额 - gs_vat_data-税额.
      " 红冲判断:参考凭证号前缀HY=红字发票
      IF ls_bkpf-xblnr(2) = 'HY'.
        gs_vat_data-发票状态 = '01'.
      ELSE.
        gs_vat_data-发票状态 = '00'.
      ENDIF.
    ENDIF.
  ENDLOOP.

  " 使用老式函数显示结果
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING i_callback_program = sy-repid
    TABLES    t_outtab = gt_bseg.