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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            docgen.cc
 *
 *  Tue Mar 15 11:20:09 CET 2011
 *  Copyright 2011 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro 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 Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include <QApplication>
#include <QDomNode>
#include <QFont>
#include <QFile>
#include <QDir>
#include <QMap>
#include <QDate>
#include <QFileInfo>

#include <stdio.h>

#include "doc.h"
#include "parse.h"
#include "generate.h"

#define WIDGETS_DIR "../widgets"
#define PRAXISDIF_DIR "../../praxisdif/curl"
#define SERVER_DIR "../../server/src"
#define CLIENT_DIR ".."
#define OUTPUT "html"

QString output;

QString header;
QString footer;

void getInheritedAttributes(QMap<QString, QVector<Attribute> > &atts,
                            QMap<QString, Doc> &docs,
                            QString name)
{
  if(name == "" || atts.contains(name)) return;
  atts[name] = docs[name].attributes;
  getInheritedAttributes(atts, docs, docs[name].extends);
}

void getInheritedMethods(QMap<QString, QVector<Method> > &meths,
                         QMap<QString, Doc> &docs,
                         QString name)
{
  if(name == "" || meths.contains(name)) return;
  meths[name] = docs[name].methods;
  getInheritedMethods(meths, docs, docs[name].extends);
}


void writeDoc(QMap<QString, Doc> &docs, QString name)
{
  Doc doc = docs[name];

  QMap<QString, QVector<Attribute> > atts;
  getInheritedAttributes(atts, docs, doc.extends);

  QMap<QString, QVector<Method> > meths;
  getInheritedMethods(meths, docs, doc.extends);

  QString out = generate(doc, meths, atts, docs);
 
  QFile::remove(output + "/" + name + ".html");
  QFile ofile(output + "/" + name + ".html");
  ofile.open(QIODevice::ReadWrite | QIODevice::Text);
  ofile.write(header.toStdString().c_str(), header.length());
  ofile.write(out.toStdString().c_str()), out.length();
  ofile.write(footer.toStdString().c_str(), footer.length());
  ofile.close();
}

void writeIndex(QMap<QString, Doc> &docs)
{
  QString out;

  out += "<h1>Pracro "VERSION" Documentation</h1>\n";
  out += "<h2>Overview</h2>\n";

  out += "<h3>Clientside</h3>\n";
  out += "<h4>Widgets</h4>\n";
  out += "<ul>\n";
  QMap<QString, Doc>::iterator i = docs.begin();
  while(i != docs.end()) {
    Doc &doc = *i;
    if(doc.tag != "") {
      out += "<li><a href=\""+doc.name+".html\">["+doc.name+"]</a> - "+
        doc.title+"</li>\n";
    }
    i++;
  }
  out += "</ul>\n";
  out += "<h4>Classes</h4>\n";
  out += "<ul>\n";
  i = docs.begin();
  while(i != docs.end()) {
    Doc &doc = *i;
    if(doc.classname != "" && doc.clientside) {
      out += "<li><a href=\""+doc.name+".html\">["+doc.name+"]</a> - "+
        doc.title+"</li>\n";
    }
    i++;
  }
  out += "</ul>\n";

  out += "<h3>Serverside</h3>\n";
  out += "<ul>\n";
  i = docs.begin();
  while(i != docs.end()) {
    Doc &doc = *i;
    if(doc.classname != "" && doc.serverside) {
      out += "<li><a href=\""+doc.name+".html\">["+doc.name+"]</a> - "+
        doc.title+"</li>\n";
    }
    i++;
  }
  out += "</ul>\n";


  QFile::remove(output + "/index.html");
  QFile ofile(output + "/index.html");
  ofile.open(QIODevice::ReadWrite | QIODevice::Text);
  ofile.write(header.toStdString().c_str());
  ofile.write(out.toStdString().c_str());
  ofile.write(footer.toStdString().c_str());
  ofile.close();
}

int main(int argc, char *argv[])
{
  QApplication app(argc, argv);

  output = OUTPUT;

  QMap<QString, Doc> docs;

  QFile hfile("header.html");
  hfile.open(QIODevice::ReadOnly | QIODevice::Text);
  header = hfile.readAll();

  QFile ffile("footer.html");
  ffile.open(QIODevice::ReadOnly | QIODevice::Text);
  footer = ffile.readAll();

  QDir d; d.mkdir(output);
  QFile::remove(output + "/style.css");
  QFile::copy("style.css", output + "/style.css");

  QStringList files;

  // Widgets
  {
    QDir dir(WIDGETS_DIR);
    QStringList filter; filter << "*.h";
    dir.setNameFilters(filter);
    if(!dir.exists()) return 1;
    QFileInfoList inflst = dir.entryInfoList(QDir::Files);
    foreach(QFileInfo inf, inflst) {
      files.append(inf.absoluteFilePath());
    }
  }

  // Client
  {
    QDir dir(CLIENT_DIR);
    QStringList filter; filter << "*.h";
    dir.setNameFilters(filter);
    if(!dir.exists()) return 1;
    QFileInfoList inflst = dir.entryInfoList(QDir::Files);
    foreach(QFileInfo inf, inflst) {
      files.append(inf.absoluteFilePath());
    }
  }

  // Server
  {
    QDir dir(SERVER_DIR);
    QStringList filter; filter << "*.h";
    dir.setNameFilters(filter);
    if(!dir.exists()) return 1;
    QFileInfoList inflst = dir.entryInfoList(QDir::Files);
    foreach(QFileInfo inf, inflst) {
      files.append(inf.absoluteFilePath());
    }
  }

  // Praxisdif
  {
    QDir dir(PRAXISDIF_DIR);
    QStringList filter; filter << "*.h";
    dir.setNameFilters(filter);
    if(!dir.exists()) return 1;
    QFileInfoList inflst = dir.entryInfoList(QDir::Files);
    foreach(QFileInfo inf, inflst) {
      files.append(inf.absoluteFilePath());
    }
  }

  foreach(QString file, files) {
    Doc doc = parse(file);
    if(doc.title != "" || doc.tag != "" || doc.classname != "")
      docs[doc.name] = doc;
  }

  writeIndex(docs);

  QMap<QString, Doc>::iterator i = docs.begin();
  while(i != docs.end()) {
    QString name = i.key();
    writeDoc(docs, name);
    i++;
  }

  // return app.exec();
  return 0;
}