ChatCommit: Auto-Generated Git Commit Message Summarizer

	# Add to your profile the following bash function
	# Use it with this command: git commit -m "$(summarize_git_diff)"
	# To confirm how the commit message will look like: git log -1
	export OPENAI_API_KEY='your openai api key'
	summarize_git_diff() {
	# Capture the full git diff (staged changes) without using a pager
	local diff_file chunk_dir chunk_prefix final_summary chunk payload response chunk_summary
	diff_file=$(mktemp)
	git --no-pager diff --cached > "$diff_file"
	# Create a temporary directory for the chunk files
	chunk_dir=$(mktemp -d)
	chunk_prefix="${chunk_dir}/chunk_"
	# Split the diff file into chunks of 200 lines (adjust as needed)
	split -l 200 "$diff_file" "$chunk_prefix"
	# Initialize the final summary
	final_summary=""
	# Process each chunk
	for chunk in "${chunk_dir}"/chunk_*; do
	# Build the JSON payload safely using jq's --rawfile to avoid issues with quotes or newlines
	payload=$(jq -n --rawfile chunk "$chunk" \
	--arg preface "Summarize concisely without losing preciseness the following git diff output to produce a git commit message:\n" \
	'{
	model: "gpt-3.5-turbo",
	messages: [{role: "user", content: ($preface + $chunk)}],
	max_tokens: 150,
	temperature: 0.3
	}')
	# Call the OpenAI API
	response=$(curl -sS https://api.openai.com/v1/chat/completions \
	-H "Content-Type: application/json" \
	-H "Authorization: Bearer ${OPENAI_API_KEY}" \
	-d "$payload")
	# Extract the summary for this chunk
	chunk_summary=$(echo "$response" | jq -r '.choices[0].message.content')
	# Append the chunk summary to the final summary
	final_summary="${final_summary}\n\n${chunk_summary}"
	done
	# Clean up temporary files and directory
	rm "$diff_file"
	rm -r "$chunk_dir"
	# Output the combined summary
	echo -e "$final_summary"
	}

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