#!/usr/bin/env bash

cacheDir=${XDG_CACHE_HOME:-"$HOME/.cache"}
configDir=${XDG_CONFIG_HOME:-"$HOME/.config"}/clauncher

cache="$cacheDir/launcher_opts"
historyFile="$cacheDir/launcher_opts_history"

if ! [ -f "$cache" ]; then
	$configDir/capture.zsh 'open -a' | sed -e 's/.*-a//' -e  "s/\\\//g" -e "s/\r//g" | grep -v -f $configDir/.open_ignore | (cat $configDir/.open_add; cat -) | sort -u > "$cache"
fi

gawk -v histfile=$historyFile '
	BEGIN {
		while( (getline < histfile) > 0 ) {
			sub("^[0-9]+\t","")
			print
			x[$0]=1
		}
	} !x[$0]++ ' "$cache" \
	| fzf -e --tiebreak=index \
	| gawk -v histfile=$historyFile '
		BEGIN {
			FS=OFS="\t"
			while ( (getline < histfile) > 0 ) {
				count=$1
				sub("^[0-9]+\t","")
				fname=$0
				history[fname]=count
			}
			close(histfile)
		}

		{
			history[$0]++
			print
		}

		END {
			if(!NR) exit
			for (f in history)
				print history[f],f | "sort -t '\t' -k1rn >" histfile
		}
	' \
	| xargs -I {} open -a "{}"