#!/usr/bin/env bash

set -euo pipefail

# Security: avoid option-injection from malicious file names (e.g. "--force").
# Robustness: NUL-delimited file list handles spaces/newlines safely.
mapfile -d '' -t files < <(git diff --cached --name-only --diff-filter=ACMR -z)

if [ "${#files[@]}" -eq 0 ]; then
  exit 0
fi

lint_files=()
format_files=()
for file in "${files[@]}"; do
  case "$file" in
    *.ts | *.tsx | *.js | *.jsx | *.mjs | *.cjs) lint_files+=("$file") ;;
  esac

  case "$file" in
    *.ts | *.tsx | *.js | *.jsx | *.mjs | *.cjs | *.json | *.md | *.mdx) format_files+=("$file") ;;
  esac
done

if [ "${#lint_files[@]}" -gt 0 ]; then
  pnpm lint --fix -- "${lint_files[@]}"
fi

if [ "${#format_files[@]}" -gt 0 ]; then
  pnpm format -- "${format_files[@]}"
fi

git add -- "${files[@]}"