#compdef genlop

#genlop 0.30.8
_genlop () {
local prev1="$words[CURRENT-1]"  prev2="$words[CURRENT-2]" days months arg single state lstate
days=(monday tuesday wednesday thursday friday saturday sunday)
months=(january february march april may june july august september october november december)
arg=( --current -c --time -t --gmt -g --info -i --file -f --rsync -r --unmerge -u --date --search -s --list -l )
single=( --current -c --pretend -p --help -h --version -v )

	[[ ${prev2} == (1st|2nd|3rd|4th|5th) ]] &&
		compadd in\ $months && return 0
	[[ ${prev1} == ([2-9]|[1-9][0-9]*) && ${prev2} != \
	(january|february|march|april|may|june|july|august|september|october|november|december) ]] &&
		_values  '' 'days ago' 'months ago' 'years ago' 'weeks ago' && return 0
	[[ ${prev1} == (1) && ${prev2} != \
	(january|february|march|april|may|june|july|august|september|october|november|december) ]] &&
		_values  '' 'day ago' 'month ago' 'year ago' 'week ago' && return 0

    case "$prev1" in
	    last)
	        _values  '' month week
		compadd $days && return 0
	;;
	    1st|2nd|3rd|4th|5th)
		compadd $days && return 0
	;;
	    january|february|march|april|may|june|july|august|september|october|november|december)
		compadd {1..31} && return 0
	;;
	    --date) 
	        _message 'enter number for more options or use mm/dd/yyyy format'
	        _values '' \
		last yesterday 1st 2nd 3rd 4th 5th 
		_alternative \
		'*:*:_days' '*:*:_months' && return 0
	;;
	    --file|-f)
	        _arguments '*:logfile:_files' && return 0
	;;
	    *)
		 _arguments \
		"($single $arg *)"{--current,-c}"[display the current merge in action]" \
		"($single)*--date[specify date of event]:date:->date" \
		"($single)*-f[specify the logfile to use]:logfile:_files" \
		"($single --gmt -g)"{--gmt,-g}"[display time in GMT/UTC format (default is local time)]" \
		"($single $arg *)"{--help,-h}"[display help information]" \
		"($single --info -i --list -l)"{--info,-i}"[print brief summary about installed ebuild]" \
		"($single --search -s --info -i --list -l *)"{--list,-l}"[list merge history]" \
		"(--nocolor -n)"{--nocolor,-n}"[disable colored output]" \
		"($single $arg *)"{--pretend,-p}"[estimate build time of a piped emerge -p]" \
		"($single --search -s --info -i --time -t --unmerge -u --rsync -r *)"{--rsync,-r}"[display rsync history]" \
		"($single --rsync -r --search -s --list -l *)"{--search,-s}"[select ebuilds matching the provided regular expression]:pattern:" \
		"($single --time -t)"{--time,-t}"[display merge time]" \
		"($single --rsync -r --unmerge -u)"{--unmerge,-u}"[display when packages have been unmerged]" \
		"($single $arg *)"{--version,-v}"[display version information]" \
		"($single)*:package:_gentoo_packages available"
	;;
    esac
	
    while [[ -n "$state" ]]; do
        lstate=$state
        state=''
        case "$lstate" in
	    date) _message 'enter number for more options or use mm/dd/yyyy format'
	    _values '' \
		last yesterday 1st 2nd 3rd 4th 5th 
		_alternative \
		':*:_days' ':*:_months' && return 0
	    ;;
	esac
    done   
}

_days() {
	local m="monday" t="tuesday" w="wednesday" T="thursday" f="friday" s="saturday" S="sunday"	
	local day=$(date +%u)
	if   [[ ${day} == 1 ]] then compadd $m
	elif [[ ${day} == 2 ]] then compadd $m $t
	elif [[ ${day} == 3 ]] then compadd $m $t $w	 
	elif [[ ${day} == 4 ]] then compadd $m $t $w $T
	elif [[ ${day} == 5 ]] then compadd $m $t $w $T $f
	elif [[ ${day} == 6 ]] then compadd $m $t $w $T $f $s
	elif [[ ${day} == 7 ]] then compadd $m $t $w $T $f $s $S
	fi
}
_months() {
	local j="january" f="february" m="march" a="april" M="may" ju="june" J="july" A="august" s="september" o="october" n="november" d="december"
	local month=$(date +%m)
	if   [[ ${month} == 01 ]] then compadd $j
	elif [[ ${month} == 02 ]] then compadd $j $f
	elif [[ ${month} == 03 ]] then compadd $j $f $m	 
	elif [[ ${month} == 04 ]] then compadd $j $f $m $a
	elif [[ ${month} == 05 ]] then compadd $j $f $m $a $M 
	elif [[ ${month} == 06 ]] then compadd $j $f $m $a $M $ju
	elif [[ ${month} == 07 ]] then compadd $j $f $m $a $M $ju $J
	elif [[ ${month} == 08 ]] then compadd $j $f $m $a $M $ju $J $A
	elif [[ ${month} == 09 ]] then compadd $j $f $m $a $M $ju $J $A $s
	elif [[ ${month} == 10 ]] then compadd $j $f $m $a $M $ju $J $A $s $o
	elif [[ ${month} == 11 ]] then compadd $j $f $m $a $M $ju $J $A $s $o $n
	elif [[ ${month} == 12 ]] then compadd $j $f $m $a $M $ju $J $A $s $o $n $d
	fi
}