#!/bin/bash

# Configuration: Standard arguments for clang-format
STYLE_ARGS="-style=file -i"

# --- Main Logic ---

if [[ "$1" == "-g" ]]; then
    # Mode: Format all modified files (staged and unstaged)

    # Use 'git ls-files' to get a list of all files with pending changes:
    # --modified: files tracked by git that have been modified (staged or unstaged)
    # --exclude-standard: ignores files in .gitignore
    git ls-files --modified --exclude-standard \
        | grep -E '\.(c|cpp|h|hpp)$' \
        | xargs -r clang-format $STYLE_ARGS

    # NOTE: We skip the 'git add' step from before.
    # When running on unstaged files, 'clang-format -i' modifies them
    # in the working directory, where they remain unstaged (M).

else
    # Executes original working command directly.
    find src lib \( -name "*.c" -o -name "*.cpp" -o -name "*.h" -o -name "*.hpp" \) -exec clang-format $STYLE_ARGS {} +

fi