#!/bin/bash

# Sorts categories by number of apps in them, discards disabled apps

declare -A count

for file in metadata/*.txt
do
    while read line
    do
        [[ "$line" == "Disabled:"* ]] && break
        if [[ "$line" == "Category:"* ]]
        then
            while IFS=';' read -ra categ
            do
                count[$categ]=$(( ${count[$categ]} + 1 )) || count[$categ]=1
            done <<< "${line:9}"
            break
        fi
    done < $file
done

output=""

for category in "${!count[@]}"
do
    output+="${count[$category]}_$category\n"
done

echo -en "$output" | column -t -s '_' | sort -n