#! /opt/bin/wish
################### Start of $RCSfile: xss.in,v $ ##################
#
# $Source: /home/alb/afbackup/afbackup-3.3.8beta7/RCS/xss.in,v $
# $Id: xss.in,v 1.3 2004/07/08 20:34:48 alb Exp alb $
# $Date: 2004/07/08 20:34:48 $
# $Author: alb $
#
#
####### description ################################################
#
#
#
####################################################################

set prefix "@prefix@"
set TEXTDOMAIN "@PACKAGE@"
set TEXTDOMAINDIR "@commondatadir@/locale"

proc T_ { text } {
  global TEXTDOMAIN TEXTDOMAINDIR

  return [ INTL_gettext $text $TEXTDOMAIN $TEXTDOMAINDIR ]
}

proc TN_ { text } {
  return $text
}

source "@commonshlibdir@/aftcllib.tcl"

if { [ llength $argv ] > 1 } {
  set usagestr [ T_ "Usage" ]
  append usagestr [ TN_ ": " ] [ file tail $argv0 ] { [ <config-file> ]}
  puts stderr $usagestr
  exit 2
}

# user settable section

set BACKUP_HOME_DEFAULT $env(BACKUP_HOME_DEFAULT)

if { [ info exists env(BACKUP_HOME) ] } {
  set BACKUP_HOME $env(BACKUP_HOME)
}

if { [ llength $argv ] == 1 } {
  set configfile [ lindex $argv 0 ]
} else {
  set found 0
  set configfiles "$BACKUP_HOME_DEFAULT/etc/backup.conf $BACKUP_HOME_DEFAULT/lib/backup.conf /etc/buserver.conf /etc/afbuserver.conf /etc/afserver.conf /etc/afbackup/server.conf"
  lappend configfiles "@serverconfdir@/@serverconf@"
  foreach configfile "$configfiles" {
    if { [ file readable $configfile ] } {
      set found 1
      break
    }
  }

  if { ! $found } {
    puts stderr [ T_ "Error: Cannot read configuration file. Exiting." ]
    exit 2
  }
}

proc getparam { pat } {
  global configfile

  set pattern {^[ \t]*}
  append pattern $pat
  append pattern {[ \t]*}


  set errfl [ catch { set fp [ open $configfile r ] } ]
  if { $errfl } {
    puts stderr [ format [ T_ "Error: Cannot open file `%s'.\n" ] $configfile ]
    exit 0
  }

  while { [ gets $fp line ] >= 0 } {
    if { [ regexp -indices $pattern $line i1 ] } {
      close $fp
      set idx [ expr [ lindex $i1 1 ] + 1 ]
      return [ string trim [ string range $line $idx end ] ]
    }
  }

  close $fp
  return ""
}

set replacements {
  { "%V" "vardir" "var" "@servervardir@" }
  { "%L" "libdir" "lib" "@serverlibdir@" }
  { "%I" "logdir" "var" "@serverlogdir@" }
  { "%B" "bindir" "bin" "@serverbindir@" }
  { "%C" "confdir" "lib" "@serverconfdir@" }
}

proc repl_dirs { args } {
  global replacements

  foreach uvar $args {
    upvar $uvar var

    foreach repl $replacements {
	set key [ lindex $repl 0 ]
	set varname [ lindex $repl 1 ]

	global $varname

	set var [ GStr_replSubstring $var $key [ set $varname ] ]
	break
    }
  }
}

set vardir [ getparam {[Vv][Aa][Rr][-_ \t]*[Dd]ire?c?t?o?r?y?:?} ]
if { $vardir == "" } {
  unset vardir
}

foreach repl $replacements {
  set varname [ lindex $repl 1 ]
  set subdir [ lindex $repl 2 ]

  if { ! [ info exists $varname ] } {
    if { [ info exists BACKUP_HOME ] } {
      set $varname "$BACKUP_HOME/$subdir"
    } else {
      set $varname [ lindex $repl 3 ]
    }
  }
}

set statusfile [ getparam {[Ss]tatus[-_ \t]*[Ff]ile:?} ]
if { $statusfile == "" } {
  set statusfile "$vardir/status"
}

set logfile [ getparam {[Ll]ogg?i?n?g?[-_ \t]*[Ff]ile:?} ]
if { [ string range $logfile 0 0 ] == "@" } {
  set logfile [ lindex $logfile 1 ]
  if { [ string trim $logfile ] == "" } {
    unset logfile
  }
}

repl_dirs statusfile logfile

proc update_statusdisplay { } {
  global	statusfile logfile num_log_lines_str prev_log_display

  set success [ catch { set line [ exec tail -1 $statusfile ] } ]
  if { ! $success } {
    .top.stat.stat.label configure -text $line
  }

  if { [ info exists logfile ] } {
    if { ! [ info exists prev_log_display ] } {
      set prev_log_display ""
    }

    set numlines 1
    scan $num_log_lines_str "%d" numlines
    set success [ catch { set lines [ exec tail -$numlines $logfile ] } ]
    if { ! $success } {
      if { $lines != $prev_log_display } {
	.top.log.log.text configure -state normal
	.top.log.log.text delete 0.0 end
	.top.log.log.text insert 0.0 $lines
	.top.log.log.text configure -state disabled
	.top.log.log.text yview end

	set prev_log_display $lines
      }
    }
  }
  
  after 2000 update_statusdisplay
}

set num_log_lines_str 10

frame .top -borderwidth 5
frame .top.stat -borderwidth 5 -relief sunken
label .top.stat.label -text [ T_ "Current server status:" ]
frame .top.stat.stat -borderwidth 2 -relief sunken
label .top.stat.stat.label -width 80
pack .top.stat.label -side top -anchor w
pack .top.stat.stat.label -fill x -side top -expand 1
pack .top.stat.stat -fill x -side top -expand 1
pack .top.stat -fill x
pack .top -fill x
if { [ info exists logfile ] } {
  frame .top.log -borderwidth 5 -relief sunken
  label .top.log.label -text [ T_ "Most recent lines in server's log:" ]
  frame .top.log.log -borderwidth 0
  text .top.log.log.text -width 80 -height $num_log_lines_str -state disabled -xscrollcommand ".top.log.xscroll set" -yscrollcommand ".top.log.log.yscroll set" -wrap none
  scrollbar .top.log.log.yscroll -command ".top.log.log.text yview"
  scrollbar .top.log.xscroll -command ".top.log.log.text xview" -orient horizontal
  frame .top.log.num -borderwidth 0
  label .top.log.num.label -text [ T_ "Number of displayed log lines:" ]
  entry .top.log.num.entry -textvariable num_log_lines_str
  pack .top.log.label -side top -anchor w
  pack .top.log.log.text -side left -expand 1 -fill both
  pack .top.log.log.yscroll -side left -fill y
  pack .top.log.log -fill both -expand 1 -side top
  pack .top.log.xscroll -fill x -side top
  pack .top.log.num.label -side left
  pack .top.log.num.entry -side left -expand 1 -fill x
  pack .top.log.num -side top
  pack .top.log -fill both -expand 1 -side top
  pack .top -fill both -expand 1
}
wm title . [ T_ "AF Backup server status" ]

update_statusdisplay