if {![exists -proc class ]} { package require oo }
if {![exists -proc sqlite3.open ]} { package require sqlite3 }

class system {}

proc {system model} {} {
	if {[catch {set fp [open /etc/model r]}]} {
		set model {HD[R]}
	} else {
		set model [string trim [read $fp]]
		close $fp
	}
	return $model
}

proc {system hostname} {} {
	if {[catch {set hostname [string trim [exec hostname]]}]} {
		set hostname "humax"
	}
	return $hostname
}

proc {system modversion} {{short 0}} {
	if {[catch {set fp [open /etc/modversion r]}]} {
		set modver "102"
	} else {
		set modver [string trim [read $fp]]
		close $fp
	}
	if {$short} { return $modver }
	lassign [split $modver ""] a b c
	return [format "%d.%d%d" $a $b $c]
}

proc {system pkgver} {{pkg webif}} {
	return [lrange [split [exec opkg list-installed $pkg] " "] 2 end]
}

proc {system mediaroot} {} {
	switch [system model] {
		HDR { return "/media/My Video" }
		HD { return "/media/drive1/Video" }
	}
	return ""
}

proc {system diskspace} {} {
	switch [system model] {
		HDR { set part /mnt/hd2 }
		HD { set part /media/drive1 }
	}

	set size 0
	set used 0
	set perc 0
	foreach line [split [exec /mod/bin/busybox/df -h $part 2>>/dev/null] "\n\r"] {
		if {[string match "/*" $line]} {
			regsub -all -- {[[:space:]]+} $line " " line
			set fields [split $line]
			set size [lindex $fields 1]
			set used [lindex $fields 2]
			set perc [string trimright [lindex $fields 4] "%"]
			break
		}
	}

	return [list $size $used $perc]
}

proc {system busy} {} {
	# Is humaxtv doing anything important?
	set pid [exec /mod/bin/busybox/pgrep humaxtv]
	set c 0
	foreach line [split [exec /mod/bin/lsof -p $pid] "\n"] {
		if {[string match {*Video*.ts} $line]} { incr c }
	}
	if {$c > 0} { return 1 }
	return 0
}

proc {system reboot} {} {
	exec /etc/init.d/S90settop shut
	exec /sbin/reboot
}

proc {system restartpending} {} {
	close [open /tmp/.restartpending w]
}

proc {system padding} {} {
	set start 0
	set stop 0
	if {[catch {set db [sqlite3.open /var/lib/humaxtv/setup.db]} msg]} {
		return {0 0}
	}
	foreach l [$db query "
		select itemName, itemValue
		from TBL_MENUCONFIG
		where itemName in ('START_PADDING_TIME', 'STOP_PADDING_TIME')
	"] {
		lassign $l x name x val
		switch $name {
		    "START_PADDING_TIME" { set start $val }
		    "STOP_PADDING_TIME" { set stop $val }
		}
	}
	$db close
	return [list $start $stop]
}