From a6ab3daf874b073af94df4838e8c017345bf46e2 Mon Sep 17 00:00:00 2001
From: Mario Fink <knif.oiram@gmail.com>
Date: Fri, 22 Jan 2021 18:38:17 +0100
Subject: [PATCH] print channels

---
 lib/tdm_reaper.cpp | 34 +++++++++++++++++++++++++++++-----
 lib/tdm_reaper.hpp |  6 +++++-
 src/main.cpp       | 29 ++++++++++-------------------
 3 files changed, 44 insertions(+), 25 deletions(-)

diff --git a/lib/tdm_reaper.cpp b/lib/tdm_reaper.cpp
index 7e9752e..36bbb60 100644
--- a/lib/tdm_reaper.cpp
+++ b/lib/tdm_reaper.cpp
@@ -544,7 +544,6 @@ void tdm_reaper::summarize_member(block blk, std::string& summary, format& forma
 // -------------------------------------------------------------------------- //
 
 // extract channel by id
-// template<typename tdmtype>
 std::vector<tdmdatatype> tdm_reaper::get_channel(std::string& id)
 {
   // check for existence of required channel id (=key)
@@ -625,14 +624,39 @@ std::vector<tdmdatatype> tdm_reaper::get_channel(std::string& id)
   }
 }
 
-void tdm_reaper::print_channel(std::string &id, const char* filename)
+// -------------------------------------------------------------------------- //
+
+void tdm_reaper::print_channel(std::string &id, const char* filename, bool include_meta)
 {
-  std::ofstream fou(filename);
+  // declare file stream
+  std::ofstream fou;
+  try {
+    fou.open(filename);
+  } catch ( const std::exception& e) {
+    throw std::runtime_error( std::string("failed to open file to dump channel")
+                              + e.what() );
+  }
 
-  std::vector<double> chn; // = this->get_channel(id);
+  // get channel object
+  tdm_channel chn = this->tdmchannels_.at(id);
+  if ( include_meta )
+  {
+    int width = 20;
+    fou<<std::setw(width)<<std::left<<"# channel-id:"<<chn.id_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# name:"<<chn.name_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# description:"<<chn.description_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# unit_string:"<<chn.unit_string_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# datatype:"<<chn.datatype_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# minimum:"<<chn.minimum_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# maximum:"<<chn.maximum_<<"\n";
+    fou<<std::setw(width)<<std::left<<"# group:"<<chn.group_<<"\n";
+  }
 
-  for ( auto el: chn ) fou<<el<<"\n";
+  // obtain channel data
+  std::vector<tdmdatatype> chndata = this->get_channel(id);
+  for ( auto el: chndata ) fou<<el<<"\n";
 
+  // close file
   fou.close();
 }
 
diff --git a/lib/tdm_reaper.hpp b/lib/tdm_reaper.hpp
index 3c0d53a..f211ebf 100644
--- a/lib/tdm_reaper.hpp
+++ b/lib/tdm_reaper.hpp
@@ -157,9 +157,11 @@ public:
   // get block/submatrix/localcolumn overview
   template<typename tdmelement>
   std::string get_overview(format formatter);
+private:
   void summarize_member(submatrix sbm, std::string& summary, format& formatter);
   void summarize_member(localcolumn lcc, std::string& summary, format& formatter);
   void summarize_member(block blk, std::string& summary, format& formatter);
+public:
 
   // get list of channelgroup ids
   std::vector<std::string> get_channelgroup_ids()
@@ -184,7 +186,9 @@ public:
   // extract channel by id
   std::vector<tdmdatatype> get_channel(std::string& id);
 
-  void print_channel(std::string &id, const char* filename);
+  // dump a single channel/entire group (identified by id) to file
+  void print_channel(std::string &id, const char* filename, bool include_meta = true);
+  void print_group(std::string &id, const char* filename);
 
 private:
 
diff --git a/src/main.cpp b/src/main.cpp
index 1b84161..0101c9a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -201,29 +201,20 @@ int main(int argc, char* argv[])
     std::cout<<jack.get_overview<localcolumn>(formatter)<<"\n";
     std::cout<<jack.get_overview<block>(formatter)<<"\n";
 
-    std::string chid("usi14");
-    std::vector<tdmdatatype> chdata = jack.get_channel(chid);
-
-    std::cout<<"channel size: "<<chdata.size()<<"\n";
-    for ( tdmdatatype el: chdata )
-    {
-      std::cout<<el<<":"<<el.dtype()<<"\n";
-    }
-
     // std::vector<std::string> chgrids = jack.get_channelgroup_ids();
-    // for ( auto el: chgrids ) std::cout<<el<<",";
-    // std::cout<<"\n";
-    // std::vector<std::string> chids = jack.get_channel_ids();
-    // for ( auto el: chids ) std::cout<<el<<",";
-    // std::cout<<"\n\n";
-
-
-    // for ( auto el: chids )
+    // for ( auto id: chgrids )
     // {
-    //   std::string chfile = std::string("channel_") +el +std::string(".csv");
-    //   jack.print_channel(el,chfile.c_str());
+    //
     // }
 
+    std::vector<std::string> chids = jack.get_channel_ids();
+    for ( auto id: chids )
+    {
+      std::string filenam = std::string("channel_") + id + std::string(".dat");
+      // std::vector<tdmdatatype> chdata = jack.get_channel(id);
+      jack.print_channel(id,filenam.c_str(),true);
+    }
+
     // print list of groups or channels to stdout
     // if ( listgroups ) jack.list_groups();
     // if ( listchannels ) jack.list_channels();