# For the time being, this file follows the lisp bracing
# convention. i.e.:
#  if(frob this) {
#    frob that
#    if(frob theother) {
#      unfrob this
#      unfrob that}}

wmiiscript=$1
wmiikeys=()

wi_nl='
'

echo Start $wmiiscript | wmiir write /event >[2]/dev/null \
	|| exit write

if(~ $scriptname '')
	scriptname=$wmiiscript

# Blech.
if(! test -x $PLAN9/bin/read)
	fn read { sh -c 'read -r x || exit 1; echo $x' }

fn wi_atexit {}
fn sigexit {
	wi_atexit
}

fn wi_fatal {
	echo $scriptname: Fatal: $*
	exit fatal
}

fn wi_notice {
	xmessage $scriptname: Notice: $*
}

fn wi_readctl { wmiir read /ctl | sed -n 's/^'$1' (.*)/\1/p' }

wmiifont=`{wi_readctl font}
wmiinormcol=`{wi_readctl normcolors}
wmiifocuscol=`{wi_readctl focuscolors}

fn wi_menu {
	dmenu -b -fn $wmiifont \
		 -nf $wmiinormcol(1) -nb $wmiinormcol(2) \
		 -sf $wmiifocuscol(1) -sb $wmiifocuscol(2)
}

fn wi_9menu {
	wmii9menu -font `{echo $wmiifont | sed 's/,.*//'} \
		-^(nf nb br)^$wmiinormcol \
		-^(sf sb br)^$wmiifocuscol $*
}

fn wi_fnmenu {
	group=$1^Menu-$2 last=$group^_last fns=`{wi_getfuns $group} {
	shift 2
	if(! ~ $#fns 0) {
		res = `{wi_9menu -initial $"($last) $fns} \
		if(! ~ $res '') {
			($last) = $res
			$group-$res $*}}}
}

fn wi_fn-p {
	rc -c 'whatis '$1 >[2]/dev/null | grep -s '^fn '
}

fn wi_proglist {
        /bin/ls -lL `{echo $* | sed 'y/:/ /'} >[2]/dev/null \
		| awk '$1 ~ /^[^d].*x/ { print $NF }' \
		| sort | uniq
}

fn wi_actions {
	{	wi_proglist $WMII_CONFPATH
	 	wi_getfuns Action
	} | sort | uniq
}

fn wi_script {
	noprog=true prog=() {
		if(~ $1 -f) {
			shift
			noprog=/dev/null
		}
		prog = `{rc -c 'path=$confpath whatis '$1 >[2]/dev/null \
			| grep -v '^fn|= ' || echo $noprog}
		shift; echo $prog $*}
}


fn wi_initkeys {
	ifs=() {
		wmiikeys = `{wmiir read /keys} {
			mykeys = `{comm -23 \
				<{wi_getfuns Key | sort | uniq} \
				<{echo $wmiikeys | sort | uniq}}
			{echo $wmiikeys; wi_getfuns Key} \
				| sort | uniq \
				| wmiir write /keys }}
	fn wi_atexit {
		wi_cleankeys
	}
}

fn wi_cleankeys {
	ifs=() {
		wmiikeys = `{wmiir read /keys} {
			comm -23 <{echo $wmiikeys | sort | uniq} \
				 <{echo $mykeys} \
				 | wmiir write /keys }}
}

fn wi_runcmd { @{
		rfork ns
		path=$oldpath
		if(~ $1 -t) {
			shift
			* = (wihack -tags `{wmiir read /tag/sel/ctl | sed 1q} $*) }
		fn `{env | 9 sed -n 's/^fn#([^=]+).*/\1/p'}
		mykeys=()
		eval exec $* & }
}

fn wi_getfuns {
	env | sed -n 's/^fn#'^$1^'-([^=]+).*/\1/p' | sort | uniq
}

for(i in Key Event Action '*Menu')
	fns=`{wi_getfuns $i} {
		if(! ~ $fns '')
			fn $i-^$fns}

fn wi_tags {
	wmiir ls /tag | sed 's,/,,; /^sel$/d'
}

fn wi_seltag {
	wmiir read /tag/sel/ctl | sed 1q
}

fn wi_readevent {
	wmiir read /event
}

fn wi_eventloop {
	wi_initkeys

	wi_readevent |
	while(ifs=$wi_nl{wi_event=`{read}}) {
		ifs=$wi_nl{
			wi_arg=`{echo $wi_event | sed 's/^[^ ]+ //'}}
		* = `{echo $wi_event}
		event = $1; shift
		Event-$"event $*
	} >[2]/dev/null </dev/null
}

fn Event-Key {
	Key-$1 $1
}

fn Event-Start {
       if(~ $1 $wmiiscript)
               exit
}

fn Action {
       cmd=$1 action=Action-$cmd { shift
               if(wi_fn-p $action)
                       $action $*
               if not
                       wi_runcmd `{wi_script $cmd} $*
       } &
}