,image-move-3

#!/bin/bash

# I have a Parent directory (where i will execute the script from) and inside it (1) markdown files that have the same name as the
# directory name in (2) have multiple directories with each directory have an image called Untitled, Untitled 1, and so on
# if have multiple images in same directory and some have mp4 videos.
#
# I want to rename those images only based on their directory name.
# Then move all of those into images and videos one directory called assets, after that delete the old (now empty) directories.
# And then update/rename the image references stored in markdown files (with the same name as the directory name) in the Parent directory
#
# How will i do this using bash script. Use find and sed.
#
# Here is the initial script:

set -e

if [ "$#" -ne 2 ]; then
	echo "Usage: $0 <from_dir> <to_dir>"
	exit 1
fi

# from_dir=$(find "$1" -type d \( -exec sh -c 'ls -1 "{}" | grep -q -E "\.(jpg|jpeg|png|gif|mp4)$"' \; \) -print0)

from_sourcedir="$1"
to_destdir="$2"

mkdir -p "$to_destdir/assets"

echo "Extracting..."
# store directories with images, videos, etc. in an array
dir_with_assets=()
while IFS= read -r -d '' dir; do
	dir_with_assets+=("$dir")
	dirname=$(basename "$dir")
	# from dir_with_assets, find rename images to their directory name
	find "$dir" -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" -o -iname "*.mov" -o -iname "*.webp" -o -iname "*.gif" -o -iname "*.mp4" \) -print0 | while IFS= read -r -d '' file; do
		# rename images to their directory name and move them to to_destdir
		# handle conflict names by adding a number
		if [ -f "$to_destdir/assets/$dirname" ]; then
			i=1
			while [ -f "$to_destdir/assets/$dirname-$i" ]; do
				((i++))
			done
			mv -n "$file" "$to_destdir/assets/$dirname-$i"
			echo "Renaming $file to $to_destdir/assets/$dirname-$i"
			continue
		fi
		# if new
		mv -n "$file" "$to_destdir/assets/$dirname"
		echo "Renaming $file to $to_destdir/assets/$dirname"

		# handle renaming image references in markdown files
		echo "Updating image references in markdown files..."
		find "$from_sourcedir" -type f -name "$dirname.md" -print0 | while IFS= read -r -d '' file; do
			# update image references in markdown files
			sed -i "s/!\[.*\](.*\/)*Untitled.*\(\.jpg\|\.jpeg\|\.png\|\.gif\|\.mp4\|\.webp\|\.mov\)/![${dirname}](${to_destdir}\/assets\/${dirname// /%20})/g" "$file"
		done
	done

done < <(find "$from_sourcedir" -type d -print0)

if [ ${#dir_with_assets[@]} -eq 0 ]; then
	echo "Error: No directories found."
	exit 1
fi