From 5820878f235692f13b4e29773b4a972908ed6782 Mon Sep 17 00:00:00 2001
From: Jan Kotanski <jankotan@gmail.com>
Date: Wed, 18 Dec 2024 18:50:30 +0100
Subject: [PATCH] add fromzero switch

---
 nxstools/pyeval/pco.py            | 12 +++++++++---
 test/NXSCreateOnlineCPFS_test.py  |  4 ++++
 test/NXSCreatePyEvalH5Cpp_test.py |  6 ++++++
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/nxstools/pyeval/pco.py b/nxstools/pyeval/pco.py
index 10a19667..fdacb618 100644
--- a/nxstools/pyeval/pco.py
+++ b/nxstools/pyeval/pco.py
@@ -28,7 +28,7 @@ def postrun(commonblock,
             nbframes,
             filepostfix,
             fileprefix,
-            filestartnum_str):
+            filestartnum_str, fromzero=False):
     """ code for postrun  datasource
 
     :param commonblock: commonblock of nxswriter
@@ -53,14 +53,20 @@ def postrun(commonblock,
         unixdir = "/data" + unixdir[2:]
     if unixdir and unixdir[-1] == "/":
         unixdir = unixdir[:-1]
-    filestartnumer = commonblock[filestartnum_str]
+    if fromzero:
+        filestartnumer = commonblock[filestartnum_str]
+    else:
+        filestartnumer = commonblock[filestartnum_str] - 1
     if fileprefix.endswith("_"):
         fileprefix = fileprefix[:-1]
     result = "" + unixdir + "/" + fileprefix + "_%05d."
     if filepostfix.startswith("."):
         filepostfix = filepostfix[1:]
     result += filepostfix + ":"
-    filelastnumber = filestartnum
+    if fromzero:
+        filelastnumber = filestartnum
+    else:
+        filelastnumber = filestartnum - 1
     if "__root__" in commonblock.keys():
         root = commonblock["__root__"]
         if hasattr(root, "currentfileid") and hasattr(root, "stepsperfile"):
diff --git a/test/NXSCreateOnlineCPFS_test.py b/test/NXSCreateOnlineCPFS_test.py
index 3e3cd19c..d4da9cc7 100644
--- a/test/NXSCreateOnlineCPFS_test.py
+++ b/test/NXSCreateOnlineCPFS_test.py
@@ -331,6 +331,7 @@ def test_onlinecp_typelist_none(self):
                      "lambdavdsnm",
                      "limaccd", "limaccds", "marccd", "mca_xia",
                      "mythen", "mythen2", "pco", "pco4000", "pcoedge",
+                     "pcovds",
                      "pedetector", "perkinelmer",
                      "perkinelmerdetector",
                      "pilatus", "pilatus100k",
@@ -377,6 +378,7 @@ def test_onlinecp_typelist_single(self):
             "pilctimeid",
             'marccd',               # +
             'pcoedge',              #
+            "pcovds",
             'pilatus100k',          #
             'tangovimba',           #
             'cobold',
@@ -443,6 +445,7 @@ def test_onlinecp_typelist_single(self):
                              "lambdavds", "lambdavdsnm",
                              "limaccd", "limaccds", "marccd", "mca_xia",
                              "mythen", "mythen2", "pco", "pco4000", "pcoedge",
+                             "pcovds",
                              "pedetector", "perkinelmer",
                              "perkinelmerdetector",
                              "pilatus", "pilatus100k",
@@ -519,6 +522,7 @@ def test_onlinecp_typelist_multiple(self):
                  "lambdavds", "lambdavdsnm",
                  "limaccd", "limaccds", "marccd", "mca_xia",
                  "mythen", "mythen2", "pco", "pco4000", "pcoedge",
+                 "pcovds",
                  "pedetector", "perkinelmer",
                  "perkinelmerdetector",
                  "pilatus", "pilatus100k",
diff --git a/test/NXSCreatePyEvalH5Cpp_test.py b/test/NXSCreatePyEvalH5Cpp_test.py
index a45362bd..b95f1ecf 100644
--- a/test/NXSCreatePyEvalH5Cpp_test.py
+++ b/test/NXSCreatePyEvalH5Cpp_test.py
@@ -1812,12 +1812,18 @@ def test_pco_postrun(self):
         commonblock[filestartnum_str] = 1
 
         sfn1 = "/tmp/current/scan213123_%05d.tif:0:19"
+        sfn2 = "/tmp/current/scan213123_%05d.tif:1:20"
 
         fn1 = pco.postrun(
             commonblock, filestartnum, filedir, nbframes,
             filepostfix, fileprefix, filestartnum_str)
         self.assertEqual(fn1, sfn1)
 
+        fn1 = pco.postrun(
+            commonblock, filestartnum, filedir, nbframes,
+            filepostfix, fileprefix, filestartnum_str, fromzero=True)
+        self.assertEqual(fn1, sfn2)
+
         tstroot.stepsperfile = 20
         tstroot.currentfileid = 1
         fn1 = pco.postrun(