#!/usr/bin/env bash
# Fetch Gitea PR data via API
# Usage: gitea-pr.sh <pr-number> [view|diff|files|comments]
# Requires: GITEA_TOKEN env var (set in .env.local)
set -euo pipefail

PR="${1:?Usage: gitea-pr.sh <pr-number> [view|diff|files|comments]}"
CMD="${2:-view}"

REMOTE=$(git remote get-url origin 2>/dev/null)
REMOTE="${REMOTE%.git}"

if [[ "$REMOTE" == git@* ]]; then
  HOST="${REMOTE#git@}"; HOST="${HOST%%:*}"
  REPO="${REMOTE#*:}"
else
  tmp="${REMOTE#*://}"; HOST="${tmp%%/*}"; REPO="${tmp#*/}"
fi

API="https://${HOST}/api/v1/repos/${REPO}"
AUTH="Authorization: token ${GITEA_TOKEN:-}"

case "$CMD" in
  view)     curl -sf -H "$AUTH" "${API}/pulls/${PR}" ;;
  diff)     curl -sf -H "$AUTH" "${API}/pulls/${PR}.diff" ;;
  files)    curl -sf -H "$AUTH" "${API}/pulls/${PR}/files" ;;
  comments) curl -sf -H "$AUTH" "${API}/issues/${PR}/comments" ;;
  *) echo "Unknown command: $CMD" >&2; exit 1 ;;
esac