#!/usr/bin/env bash
# Run the callgraph analysis against every crate under crates/ and produce
# a Markdown report. Crates with no findings are omitted.
set -euo pipefail
cd "$(dirname "$0")/.."

TOOL=./target/release/zed-callgraph
REPORT=CallGraphReport.md
TOTAL=0
CRATE_COUNT=0

{
  echo "# Callgraph Analysis Report"
  echo ""
  echo "Blocking calls detected inside \`async fn\` bodies across all crates."
  echo ""
  echo "Generated: $(date -u '+%Y-%m-%d %H:%M UTC')"
  echo ""
  echo "---"
  echo ""
} > "$REPORT"

NUM_CRATES=$(find crates -mindepth 1 -maxdepth 1 -type d | wc -l)
I=0

for crate_dir in crates/*/; do
  crate_name=$(basename "$crate_dir")
  I=$((I + 1))
  # NO_COLOR prevents codespan-reporting from emitting ANSI escapes
  human_output=$(NO_COLOR=1 $TOOL -p "$crate_name" 2>&1 || true)
  # The tool prints "Found N blocking call(s)" to stderr on findings
  count=$(echo "$human_output" | grep -oP 'Found \K[0-9]+' || echo 0)
  if [ "$count" -gt 0 ] && [ "$count" != "0" ]; then
    TOTAL=$((TOTAL + count))
    CRATE_COUNT=$((CRATE_COUNT + 1))
    printf "[%3d/%d] %-40s %d finding(s)\n" "$I" "$NUM_CRATES" "$crate_name" "$count" >&2
    {
      echo "## \`$crate_name\` — $count finding(s)"
      echo ""
      echo '```'
      echo "$human_output" | grep -v '^Found '
      echo '```'
      echo ""
    } >> "$REPORT"
  else
    printf "[%3d/%d] %-40s clean\n" "$I" "$NUM_CRATES" "$crate_name" >&2
  fi
done

# Write summary at the top by prepending
TMPFILE=$(mktemp)
{
  head -7 "$REPORT"
  echo "**Summary**: $TOTAL finding(s) across $CRATE_COUNT crate(s)."
  echo ""
  tail -n +8 "$REPORT"
} > "$TMPFILE"
mv "$TMPFILE" "$REPORT"

echo "Report written to $REPORT: $TOTAL finding(s) across $CRATE_COUNT crate(s)."