#!/usr/bin/env bash
# Push main to a mirror remote with host-specific doc URLs, without leaving URL churn on main.
# Usage: push-mirror.sh github|kalinamall|papatramp
set -euo pipefail

TARGET="${1:?usage: push-mirror.sh github|kalinamall|papatramp}"
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$ROOT"

case "$TARGET" in
  github) REMOTE=github ;;
  kalinamall) REMOTE=kalinamall ;;
  papatramp) REMOTE=papatramp ;;
  *)
    echo "unknown target: $TARGET" >&2
    exit 1
  ;;
esac

if ! git remote get-url "$REMOTE" >/dev/null 2>&1; then
  echo "remote not configured: $REMOTE" >&2
  exit 1
fi

if ! git diff --quiet || ! git diff --cached --quiet; then
  echo "working tree not clean; commit or stash first" >&2
  exit 1
fi

BEFORE="$(git rev-parse HEAD)"
bash "$ROOT/scripts/rewrite-git-host-urls.sh" "$TARGET"

if git diff --quiet; then
  echo "no URL changes for $TARGET; pushing as-is"
  git push "$REMOTE" main
  exit 0
fi

git add -A
git commit -m "chore(docs): sync repository URLs for ${TARGET} mirror"
git push "$REMOTE" main
git reset --hard "$BEFORE"
echo "pushed $REMOTE with ${TARGET} URLs; local main reset to $BEFORE"