/*
 * info_netbsd.cpp is part of the KDE program kcminfo.  This displays
 * various information about the NetBSD system it's running on.
 *
 * Originally written by Jaromir Dolecek <dolecek@ics.muni.cz>. CPU info
 * code has been imported from implementation of processor.cpp for KDE 1.0
 * by David Brownlee <abs@NetBSD.org> as found in NetBSD packages collection.
 * Hubert Feyer <hubertf@NetBSD.org> enhanced the sound information printing
 * quite a lot, too.
 *
 * The code is placed into public domain. Do whatever you want with it.
 */

#define INFO_CPU_AVAILABLE
#define INFO_IRQ_AVAILABLE
#define INFO_DMA_AVAILABLE
#define INFO_PCI_AVAILABLE
#define INFO_IOPORTS_AVAILABLE
#define INFO_SOUND_AVAILABLE
#define INFO_DEVICES_AVAILABLE
#define INFO_SCSI_AVAILABLE
#define INFO_PARTITIONS_AVAILABLE
#define INFO_XSERVER_AVAILABLE


/*
 * all following functions should return TRUE, when the Information
 * was filled into the lBox-Widget. Returning FALSE indicates that
 * information was not available.
 */

#include <sys/types.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/mount.h>
#include <stdio.h>	/* for NULL */
#include <stdlib.h>	/* for malloc(3) */
#include <fstab.h>

#include <qfile.h>
#include <qfontmetrics.h>
#include <qstrlist.h>
#include <qtextstream.h>

#include <kdebug.h>
#include <kio/global.h> /* for KIO::convertSize() */

typedef struct
  {
  int	string;
  int	name;
  const char	*title;
  } hw_info_mib_list_t;

bool GetInfo_CPU(QListView *lBox)
{
  static hw_info_mib_list_t hw_info_mib_list[]= {
	{ 1, HW_MODEL,		"Model" },
	{ 1, HW_MACHINE,	"Machine" },
	{ 1, HW_MACHINE_ARCH,	"Architecture" },
	{ 0, HW_NCPU,		"Number of CPUs" },
	{ 0, HW_PAGESIZE,	"Pagesize" },
	{ 0,0,0 }
	};
  hw_info_mib_list_t *hw_info_mib;

  int mib[2], num;
  char *buf;
  size_t len;
  QString value;

  lBox->addColumn(i18n("Information"));
  lBox->addColumn(i18n("Value"));

  for ( hw_info_mib = hw_info_mib_list ;  hw_info_mib->title ; ++hw_info_mib )
  {
	mib[0] = CTL_HW;
	mib[1] = hw_info_mib->name;
	if ( hw_info_mib->string ) {
		sysctl(mib,2,NULL,&len,NULL,0);
		if ( (buf = (char*)malloc(len)) ) {
			sysctl(mib,2,buf,&len,NULL,0);
			value = QString::fromLocal8Bit(buf);
			free(buf);
		}
		else {
			value = QString("Unknown");
		}
	}
	else {
		len = sizeof(num);
		sysctl(mib,2,&num,&len,NULL,0);
		value = QString::number(num);
	}
	new QListViewItem(lBox, hw_info_mib->title, value);
   }

   return true;
}

// this is used to find out which devices are currently
// on system
static bool GetDmesgInfo(QListView *lBox, const char *filter,
	void func(QListView *, QString s))
{
        QFile *dmesg = new QFile("/var/run/dmesg.boot");
	bool usepipe = false;
	FILE *pipe = NULL;
	QTextStream *t;
	bool seencpu = false;
	QString s;
	bool found = false;

	if (dmesg->exists() && dmesg->open(IO_ReadOnly)) {
		t = new QTextStream(dmesg);
	}
	else {
		delete dmesg;
		pipe = popen("/sbin/dmesg", "r");
		if (!pipe) return false;
		usepipe = true;
		t = new QTextStream(pipe, IO_ReadOnly);
	}

	QListViewItem *olditem = NULL;
	while(!(s = t->readLine().local8Bit()).isEmpty()) {
		if (!seencpu) {
			if (s.contains("cpu"))
				seencpu = true;
			else
				continue;
		}
		if (s.contains("boot device") ||
			s.contains("WARNING: old BSD partition ID!"))
			break;

		if (!filter
		    || (filter[0] == '^' && s.find(&filter[1]) == 0)
		    || (filter[0] != '^' && s.contains(filter))) {
			if (func)
				func(lBox, s);
			else
				olditem = new QListViewItem(lBox, olditem, s);
			found = true;
		}
	}

	delete t;
	if (pipe)
		pclose(pipe);
	else {
		dmesg->close();
		delete dmesg;
	}

	return found;
}


void
AddIRQLine(QListView *lBox, QString s)
{
	int pos, irqnum;
	char numstr[3];

	pos = s.find(" irq ");
	irqnum = (pos < 0) ? 0 : atoi(&s.ascii()[pos+5]);
	if (irqnum)
		snprintf(numstr, 3, "%02d", irqnum);
	else {
		// this should never happen
		strcpy(numstr, "??");
	}

	new QListViewItem(lBox, numstr, s);
}

bool GetInfo_IRQ (QListView *lBox)
{
	lBox->addColumn(i18n("IRQ"));
	lBox->addColumn(i18n("Device"));
	lBox->setSorting(0);
	lBox->setShowSortIndicator(FALSE);
	(void) GetDmesgInfo(lBox, " irq ", AddIRQLine);
	return true;
}

bool GetInfo_DMA (QListView *)
{
	return false;
}

bool GetInfo_PCI (QListView *lbox)
{
	if (!GetDmesgInfo(lbox, "at pci", NULL))
		new QListViewItem(lbox, i18n("No PCI devices found."));
	return true;
}

bool GetInfo_IO_Ports (QListView *lbox)
{
	if (!GetDmesgInfo(lbox, "port 0x", NULL))
		new QListViewItem(lbox, i18n("No I/O port devices found."));
	return true;
}

bool GetInfo_Sound (QListView *lbox)
{
	lbox->setSorting(false);

	if (!GetDmesgInfo(lbox, "audio", NULL))
		new QListViewItem(lbox, i18n("No audio devices found."));

	// append information for each audio devices found
	QListViewItem *lvitem = lbox->firstChild();
	for(; lvitem; lvitem = lvitem->nextSibling()) {
		QString s;
		int pos, len;
		const char *start;
		char *dev;

		s = lvitem->text(0);
		// The autoconf message is in form 'audio0 at auvia0: ...'
		if (s.find("audio") == 0 && (pos = s.find(" at ")) > 0) {
			pos += 4;	// skip " at "
			start = s.ascii() + pos;
			len = (int) strcspn(start, ":\n\t ");
			dev = (char *) malloc(1 + len + 1);
			sprintf(dev, "^%.*s", len, start);	/* safe */

			GetDmesgInfo(lbox, dev, NULL);

			free(dev);
		}
	}

	return true;
}

bool GetInfo_Devices (QListView *lBox)
{
	(void) GetDmesgInfo(lBox, NULL, NULL);
	return true;
}

bool GetInfo_SCSI (QListView *lbox)
{
	if (!GetDmesgInfo(lbox, "scsibus", NULL))
		new QListViewItem(lbox, i18n("No SCSI devices found."));

	// remove the 'waiting %d seconds for devices to settle' message
	QListViewItem *lvitem = lbox->firstChild();
	for(; lvitem; lvitem = lvitem->nextSibling()) {
		QString s = lvitem->text(0);

		if (s.contains("seconds for devices to settle")) {
			lbox->removeItem(lvitem);
			break;
		}
	}
	
	return true;
}

bool GetInfo_Partitions (QListView *lbox)
{
	int num; // number of mounts
	// FIXME: older pkgsrc patches checked ST_RDONLY for this declaration
	// what is ST_RDONLY and how does it affect getmntinfo?
	struct statfs *mnt; // mount data pointer

	// get mount info
	if (!(num=getmntinfo(&mnt, MNT_WAIT))) {
		kdError() << "getmntinfo failed" << endl;
		return false;
	}

	// table headers
	lbox->addColumn(i18n("Device"));
	lbox->addColumn(i18n("Mount Point"));
	lbox->addColumn(i18n("FS Type"));
	lbox->addColumn(i18n("Total Size"));
	lbox->addColumn(i18n("Free Size"));
	lbox->addColumn(i18n("Total Nodes"));
	lbox->addColumn(i18n("Free Nodes"));
	lbox->addColumn(i18n("Flags"));

	// mnt points into a static array (no need to free it)
	for(; num--; ++mnt) {
		unsigned long long big[2];
		QString vv[5];

		big[0] = big[1] = mnt->f_bsize; // coerce the product
		big[0] *= mnt->f_blocks;
		big[1] *= mnt->f_bavail; // FIXME: use f_bfree if root?

		// convert to strings
		vv[0] = KIO::convertSize(big[0]);
		vv[1] = QString::fromLatin1("%1 (%2%%)")
				.arg(KIO::convertSize(big[1]))
				.arg(mnt->f_blocks ? mnt->f_bavail*100/mnt->f_blocks : 0);

		// FIXME: these two are large enough to punctuate
		vv[2] = QString::number(mnt->f_files);
		vv[3] = QString::fromLatin1("%1 (%2%%) ")
				.arg(mnt->f_ffree)
				.arg(mnt->f_files ? mnt->f_ffree*100/mnt->f_files : 0);

		vv[4] = QString::null;
#define MNTF(x) if (mnt->f_flags & MNT_##x) vv[4] += QString::fromLatin1(#x " ");
		MNTF(ASYNC)
		MNTF(DEFEXPORTED)
		MNTF(EXKERB)
		MNTF(EXNORESPORT)
		MNTF(EXPORTANON)
		MNTF(EXPORTED)
		MNTF(EXPUBLIC)
		MNTF(EXRDONLY)
		MNTF(IGNORE)
		MNTF(LOCAL)
		MNTF(NOATIME)
		MNTF(NOCOREDUMP)
		MNTF(NODEV)
		MNTF(NODEVMTIME)
		MNTF(NOEXEC)
		MNTF(NOSUID)
		MNTF(QUOTA)
		MNTF(RDONLY)
		MNTF(ROOTFS)
		MNTF(SOFTDEP)
		MNTF(SYMPERM)
		MNTF(SYNCHRONOUS)
		MNTF(UNION)
#undef MNTF

		// put it in the table
		// FIXME: there're more data but we have limited args (this is wrong! just add!)
		new QListViewItem(lbox,
			// FIXME: names need pad space
			mnt->f_mntfromname,
			mnt->f_mntonname,
			mnt->f_fstypename,
			vv[0], vv[1], vv[2], vv[3], vv[4]);
	}

	// job well done
	return true;
}

bool GetInfo_XServer_and_Video (QListView *lBox)
{
	return GetInfo_XServer_Generic( lBox );
}
