#!/bin/bash

changelog_location="fastlane/metadata/android/en-US/changelogs"
count_txt=$(ls -r $changelog_location/*.txt | wc -l)
count_tag=$(git tag | wc -l)

if (( count_txt != count_tag )); then
    echo "Tag count and txt-file count not matching."
    exit 1
fi

echo "# Changelog" > CHANGELOG.md

for i in $(seq "$count_txt" -1 1)
do
   tag=$(git tag | sed "$i!d")
   echo "## $tag ($i)" >> CHANGELOG.md

   awk 1 $changelog_location/"$i".txt >> CHANGELOG.md
   
done