#!/usr/bin/env bash

set -euo pipefail

script_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
repo_root="$(cd -- "$script_dir/.." && pwd -P)"
canonical_home="${COPILOT_RESOURCES_HOME:-$HOME/.copilot-resources}"
copilot_home="${COPILOT_HOME:-$HOME/.copilot}"
quick="false"

detect_vscode_user_dir() {
  if [[ -n "${VSCODE_USER_DIR:-}" ]]; then
    printf '%s\n' "$VSCODE_USER_DIR"
    return 0
  fi

  case "$(uname -s)" in
    Darwin)
      printf '%s\n' "$HOME/Library/Application Support/Code/User"
      ;;
    Linux)
      printf '%s\n' "$HOME/.config/Code/User"
      ;;
    *)
      printf '%s\n' "$HOME/.config/Code/User"
      ;;
  esac
}

check_path() {
  local label="$1"
  local path="$2"

  if [[ -e "$path" ]]; then
    printf '[ok] %s: %s\n' "$label" "$path"
  else
    printf '[missing] %s: %s\n' "$label" "$path" >&2
    return 1
  fi
}

main() {
  if [[ "${1:-}" == "--quick" ]]; then
    quick="true"
  fi

  local vscode_user_dir
  vscode_user_dir="$(detect_vscode_user_dir)"

  check_path "repo root" "$repo_root"
  check_path "canonical home" "$canonical_home"
  check_path "skills link" "$copilot_home/skills"
  check_path "agents link" "$copilot_home/agents"
  check_path "instructions link" "$copilot_home/instructions"
  check_path "hooks link" "$copilot_home/hooks"
  check_path "prompts link" "$vscode_user_dir/prompts"

  if [[ "$quick" != "true" ]]; then
    check_path "VS Code settings template" "$repo_root/config/vscode/settings.template.jsonc"
    check_path "CLI env template" "$repo_root/config/copilot-cli/env.example.sh"
  fi
}

main "$@"