#!/bin/bash

touch a
touch B
touch SED
mkdir foldera
mkdir FOLDERB
mkdir FOLDERSED
# Build the fixture tree with paths rather than cd/cd .., so a failed cd
# cannot silently create the next level in the wrong directory.
mkdir -p upperfoldermain/upperfoldersub
touch upperfoldermain/upperfilesub
touch upperfoldermain/upperfoldersub/upperfilesubsub

mkdir -p LOWERCASEFOLDERMAIN/LOWERFOLDERSUB
touch LOWERCASEFOLDERMAIN/LOWERFILESUB
touch LOWERCASEFOLDERMAIN/LOWERFOLDERSUB/LOWERFILESUBSUB

mkdir -p SEDLOWERCASEFOLDERMAIN/SEDLOWERFOLDERSUB
touch SEDLOWERCASEFOLDERMAIN/SEDLOWERFILESUB
touch SEDLOWERCASEFOLDERMAIN/SEDLOWERFOLDERSUB/SEDLOWERFILESUBSUB

touch recursefile
touch RECURSELOWERFILE
touch SEDRECURSEFILE



echo "Typical scenarios"
echo "Uppercasing file with filename a"
bash ./modify.sh -u a
echo "Lowercasing file with filename B"
bash ./modify.sh -l B
echo "Using sed pattern for lowercasing of file with filename SED"
bash ./modify.sh "-r -e s/.*/\L&/" SED 
echo "Uppercasing folder with name foldera non recursively"
bash ./modify.sh -u foldera
echo "Lowercasing folder with name FOLDERB non recursively"
bash ./modify.sh -l FOLDERB
echo "Using sed pattern for lowercasing of folder with name FOLDERSED non recursively"
bash ./modify.sh "-l -e s/.*/\L&/" FOLDERSED
echo "Uppercasing folder recursively"
echo "Main folder name: upperfoldermain"
echo "folder contains: folder named upperfoldersub , file named upperfilesub"
echo "subfolder upperfoldersub contains file named upperfilesubsub"
bash ./modify.sh -r -u upperfoldermain
echo "Lowercasing folder recursively"
echo "Main folder name: LOWERFOLDERMAIN"
echo "folder contains: folder named LOWERFOLDERSUB , file named LOWERFILESUB"
echo "subfolder LOWERFOLDERSUB contains file named LOWERFILESUBSUB"
bash ./modify.sh -r -l SEDLOWERCASEFOLDERMAIN
echo "using sed pattern for Lowercasing folder recursively"
echo "Main folder name: SEDLOWERFOLDERMAIN"
echo "folder contains: folder named SEDLOWERFOLDERSUB , file named SEDLOWERFILESUB"
echo "subfolder SEDLOWERFOLDERSUB contains file named SEDLOWERFILESUBSUB"
bash ./modify.sh -r "-r -e s/.*/\L&/" SEDLOWERFOLDERMAIN
echo "Uncommon scenarios"
echo "uppercasing recursively normal file recursefile"
bash ./modify.sh -r -u recursefile
echo "lowercasing recursively normal file RECURSELOWERFILE"
bash ./modify.sh -r -l RECURSELOWERFILE
echo "using sed pattern recursively for normal file to lowercase it SEDRECURSEFILE"
bash ./modify.sh -r "-r -e s/.*/\L&/" SEDRECURSEFILE
echo "Incorrect scenarios"
echo "not providing enough arguments"
bash ./modify.sh
echo "not providing file"
bash ./modify.sh -l
echo "not providing argument for recursion"
bash ./modify.sh -r filename
echo "provding filename/foldername for file/folder which does not exist"
bash ./modify.sh -l thisfiledoesnotexist