source: trunk/lib/first_page.cc @ 1237

// $Id: first_page.cc 1237 2010-10-23 21:41:40Z peter $

/*
  Copyright (C) 2006 Peter Johansson
  Copyright (C) 2007, 2008, 2009 Jari Häkkinen, Peter Johansson
  Copyright (C) 2010 Peter Johansson

  This file is part of svndigest, http://dev.thep.lu.se/svndigest

  svndigest is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 3 of the License, or
  (at your option) any later version.

  svndigest is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with svndigest. If not, see <http://www.gnu.org/licenses/>.
*/

#include "first_page.h"

#include "Commitment.h"
#include "Configuration.h"
#include "Date.h"
#include "HtmlStream.h"
#include "html_utility.h"
#include "Stats.h"
#include "StatsCollection.h"
#include "SVNlog.h"
#include "Trac.h"
#include "utility.h"
#include <config.h> // this header file is created by configure

#include <algorithm>
#include <cassert>
#include <fstream>
#include <iostream>
#include <sstream>
#include <stdexcept>
#include <string>
#include <sys/param.h>
#include <unistd.h>
#include <vector>

namespace theplu{
namespace svndigest{

  void print_main_page(const std::string& dir, const SVNlog& log,
                       const StatsCollection& stats, std::string url)
  {
    std::string filename="index.html";
    std::ofstream os(filename.c_str());
    print_header(os, dir, 0, "all", "main", "index.html", "none");

    using namespace std;
    set<string> authors;
    std::transform(log.commits().begin(), log.commits().end(),
                   std::inserter(authors, authors.begin()), 
                   std::mem_fun_ref(&Commitment::author));
    // erase invalid authors
    authors.erase("");
    authors.erase("no author");

    vector<Commitment> latest_commit;
    latest_commit.reserve(authors.size());
    for (set<string>::const_iterator i(authors.begin()); i!=authors.end(); ++i)
      latest_commit.push_back(log.latest_commit(*i));

    print_summary_plot(os, stats["classic"]);
    print_general_information(os, log, authors.size(), url);
    sort(latest_commit.begin(), latest_commit.end(), GreaterRevision());
    print_authors(os, latest_commit, stats["classic"]);
    print_recent_logs(os, log, stats);
    os << "<hr width=100% />";
    print_footer(os);
    os.close();
  }

  void print_general_information(std::ostream& os, const SVNlog& log, 
                                 size_t nof_authors, std::string url)
  { 
    assert(log.commits().size());
    Date begin(log.commits().begin()->date());    
    Date end(log.latest_commit().date());
    std::string timefmt("%a %b %e %H:%M:%S %Y");

    os << "<div class=\"main\">" 
       << "<table class=\"main\"><thead><tr><th colspan=\"2\">" 
       << "General Information"
       << "</th></tr></thead>\n"
       << "<tbody>\n"
       << "<tr><td>URL:</td><td>"; 
    if (url.size()>=4 && url.substr(0,4)=="http")
      os << anchor(url, url);
    else
      os << url;
    os << "</td></tr>\n"
       << "<tr><td>First Revision Date:</td><td>" 
       << begin(timefmt) << "</td></tr>\n"
       << "<tr><td>Latest Revision Date:</td><td>" 
       << end(timefmt) << "</td></tr>\n"
       << "<tr><td>Age:</td><td>"; 
    os << end.difftime(begin);
    os << "</td></tr>\n"
       << "<tr><td>Smallest Revision:</td><td>" 
       << log.commits().begin()->revision() 
       << "</td></tr>\n"
       << "<tr><td>Largest Revision:</td><td>" << log.latest_commit().revision() 
       << "</td></tr>\n"
       << "<tr><td>Revision Count:</td><td>" << log.commits().size() 
       << "</td></tr>\n"
       << "<tr><td>Number of Authors:</td><td>" << nof_authors
       << "</td></tr>\n"
       << "</tbody>\n"
       << "</table></div>\n";
  }


  void print_authors(std::ostream& os, 
                     const std::vector<Commitment>& lc,
                     const Stats& stats)
  {
    HtmlStream hs(os);
    os << "<div class=\"main\">"
       << "<table class=\"main\"><thead><tr><th colspan=\"2\">" 
       << "Authors"
       << "</th></tr></thead>\n";

    os << "<tr><td>Author</td>" 
       << "<td>Number of Lines</td>"
       << "<td>Code Lines</td>"
       << "<td>Comment Lines</td>"
       << "<td>Latest Commitment</td>"
       <<"</tr>";

    std::string timefmt("%Y-%m-%d  %H:%M");
    using namespace std;
    for (vector<Commitment>::const_iterator i=lc.begin(); i!=lc.end(); ++i) {
      os << "<tr><td>"; 
      if (!stats.lines(i->author()))
        os << i->author();
      else
        os << anchor(std::string("classic/"+i->author()+"/total/index.html"),
                     i->author());
      os << "</td><td>" << stats.lines(i->author()) << " (" 
         << 100*stats.lines(i->author())/(stats.lines()?stats.lines():1)
         << "%)</td><td>" << stats.code(i->author()) << " (" 
         << 100*stats.code(i->author())/(stats.code()?stats.code():1)
         << "%)</td><td>" << stats.comments(i->author()) << " (" 
         << 100*stats.comments(i->author())/(stats.comments()?stats.comments():1)
         << "%)</td><td>";
      std::string date = Date(i->date())(timefmt);
      const Configuration& conf = Configuration::instance();
      if (conf.trac_root().empty())
        hs << date;
      else {
        std::stringstream url;
        url << conf.trac_root() << "changeset/" << i->revision();
        os << anchor(url.str(), date);
      }
      os << "</td>" <<"</tr>";
    }
    os << "<tr><td>Total</td>";
    os << "<td>" << stats.lines() << "</td>"
       << "<td>" << stats.code() << "</td>"
       << "<td>" << stats.comments() << "</td>"
       <<"</tr>";

    os << "</table></div>\n";
  }


  void print_recent_logs(std::ostream& os, const SVNlog& log,
                         const StatsCollection& stats)
  {
    os << "<div class=\"main\">\n"
       << "<table class=\"main\"><thead><tr><th colspan=\"2\">" 
       << "Recent Log"
       << "</th></tr></thead>\n";

    os << "<tr><td>Author</td><td>Date</td><td>Rev</td><td>Added</td>"
       << "<td>Removed</td><td>Message</td></tr>\n";
    HtmlStream hs(os);
    std::string timefmt("%Y-%m-%d  %H:%M");
    const size_t maxlength = 80;
    const Configuration& conf = Configuration::instance();
    typedef SVNlog::container::const_reverse_iterator iter;
    size_t count = 0;
    for (iter i=log.commits().rbegin(); 
         i != log.commits().rend() && count<10; ++i) {
      os << "<tr><td>" 
         << anchor(std::string("classic/")+i->author()+"/total/index.html",
                   i->author()) 
         << "</td>";
      Date date(i->date());
      os << "<td>";
      hs << date(timefmt); 
      os << "</td>";
      os << "<td>"; 
      os << trac_revision(i->revision());
      os << "</td>";
      os << "<td>";
      int added = stats["add"](LineTypeParser::total, "all", i->revision()) -
        stats["add"](LineTypeParser::total, "all", i->revision() - 1); 
      os << added;
      os << "</td>";
      os << "<td>";
      os << added-(stats["blame"](LineTypeParser::total, "all", i->revision()) -
                   stats["blame"](LineTypeParser::total,"all",i->revision()-1)); 
      os << "</td>";
      os << "<td>";
      std::string mess = i->message();
      // replace newlines with space
      std::replace(mess.begin(), mess.end(), '\n', ' ');
      mess = htrim(mess);

      if (conf.trac_root().empty()) {
        // truncate message if too long
        if (mess.size()>maxlength)
          mess = mess.substr(0,maxlength-3) + "...";
        hs << mess;
      }
      else {// make anchors to trac
        Trac trac(hs);
        trac.print(mess, maxlength);
      }

      os << "</td></tr>\n";
      ++count;
    }
    os << "</table></div>\n";
  }


  void print_summary_plot(std::ostream& os, const Stats& stats)
  {
    std::string name("summary_plot");
    stats.plot_summary(name);
    os << "<div class=\"main\">\n";
    os << image(name);
    os << "</div>";


  }

}} // end of namespace svndigest and namespace theplu