#!/usr/bin/env bash
# Get a summary of a PR: title, body, state, and review status
# Usage: gh-pr-summary <PR_NUMBER> [REPO]

set -euo pipefail

PR_NUMBER="${1:?Usage: gh-pr-summary <PR_NUMBER> [REPO]}"
REPO="${2:-}"

if [[ -z "$REPO" ]]; then
  REPO=$(gh repo view --json nameWithOwner -q '.nameWithOwner' 2>/dev/null || true)
  if [[ -z "$REPO" ]]; then
    echo "Error: Could not detect repo. Provide REPO as second argument" >&2
    exit 1
  fi
fi

gh api "repos/${REPO}/pulls/${PR_NUMBER}" | jq -r '
"PR #\(.number): \(.title)
State: \(.state) | Mergeable: \(.mergeable // "unknown") | Draft: \(.draft)
Author: \(.user.login)
Branch: \(.head.ref) → \(.base.ref)
Created: \(.created_at | split("T")[0])
URL: \(.html_url)

─── Description ───
\(.body // "(no description)")"'