#!/bin/bash

repoRoot=$(git rev-parse --show-toplevel)
listStaticPathFiles=$(git grep -lr --untracked $repoRoot)
listStagedFiles=$(git diff --staged --name-only)

staticPathSubstitution="\${REPO_ROOT}"

for entryStagedFile in $listStagedFiles; do
    for entryStaticPathFile in $listStaticPathFiles; do
        if [ $entryStagedFile == $entryStaticPathFile ]; then
            fullPath="${repoRoot}/${entryStagedFile}"
            entryStagedFileSubstitute="${entryStagedFile}.gitsubstitute"
            fullPathSubstitute="${repoRoot}/${entryStagedFileSubstitute}"
            
            rm -f $fullPathSubstitute
            
            fileContent=$(<$fullPath)
            echo "${fileContent//${repoRoot}/${staticPathSubstitution}}" > "${fullPathSubstitute}"
            
            git rm --cached $entryStagedFile
            git add -f $entryStagedFileSubstitute
        fi
    done
done