#!/usr/bin/env bash
set -euo pipefail

mkdir -p ai/context

OUT="ai/context/project-context.md"

{
  echo "# Project Context"
  echo
  echo "Generated: $(date -u +"%Y-%m-%dT%H:%M:%SZ")"
  echo
  echo "## Repo Tree"
  echo
  echo '```text'
  if command -v tree >/dev/null 2>&1; then
    tree -a -I target -I .git
  else
    echo "[tree not installed, showing file list fallback]"
    fd -t f . src docs ai .cargo -E ai/context -E target | sort
  fi
  echo '```'
  echo
  echo "## Cargo.toml"
  echo
  echo '```toml'
  cat Cargo.toml
  echo '```'
  echo
  echo "## AGENTS.md"
  echo
  cat AGENTS.md
  echo
  echo "## Source Files"
  echo
  while IFS= read -r file; do
    echo "### ${file}"
    echo
    case "${file}" in
      *.rs)
        echo '```rust'
        cat "${file}"
        echo '```'
        ;;
      *.toml)
        echo '```toml'
        cat "${file}"
        echo '```'
        ;;
      *.md)
        cat "${file}"
        ;;
      *)
        echo '```text'
        cat "${file}"
        echo '```'
        ;;
    esac
    echo
  done < <(fd -t f . src docs ai .cargo -E ai/context -E target | sort)
  echo "## TODO / FIXME / HACK"
  echo
  echo '```text'
  rg -n "TODO|FIXME|HACK|BUG" . --glob '!target/**' --glob '!ai/context/**' || true
  echo '```'
} > "${OUT}"

echo "Wrote ${OUT}"