#!/usr/bin/env bash

set -euo pipefail

N8N_HOST="https://n8n.bjphoster.com"
WEBHOOK_ID="7c3cf611-e700-4bc0-b108-7d6be458dae6"
WEBHOOK_URL="${N8N_HOST}/webhook/${WEBHOOK_ID}"

TEMPLATE_REPO_DIR=$(pwd)
TEMPLATE_BRANCH="main"
COMMIT_ID=$(git log HEAD --oneline | awk '{print $1}' | head -n1)
COMMIT_MESSAGE="Template updates (commit: $COMMIT_ID)"

echo "Fetching repository list from ${WEBHOOK_URL}..."
JSON_RESPONSE=$(curl -s -f "${WEBHOOK_URL}")

echo "Parsing repository URLs..."
CLONE_URLS=$(echo "${JSON_RESPONSE}" | jq -r '.clone_url[]?')

if [ -z "${CLONE_URLS}" ]; then
  echo "Error: No clone_url found in response or array is empty"
  echo "Response: ${JSON_RESPONSE}"
  exit 1
fi

while IFS= read -r clone_url; do
  if [ -z "${clone_url}" ]; then
    continue
  fi

  echo ""
  echo "Processing repository: ${clone_url}"

  repo_name=$(basename "${clone_url}" .git)

  git clone "${clone_url}" "${repo_name}"
  pushd "${repo_name}"

  TEMPLATE_REMOTE_NAME="template"
  git remote add "${TEMPLATE_REMOTE_NAME}" "${TEMPLATE_REPO_DIR}"

  git fetch "${TEMPLATE_REMOTE_NAME}" "${TEMPLATE_BRANCH}"

  current_branch=$(git rev-parse --abbrev-ref HEAD)

  if git merge "${TEMPLATE_REMOTE_NAME}/${TEMPLATE_BRANCH}" \
    --no-edit \
    --no-ff \
    --message "${COMMIT_MESSAGE}"; then
    echo "Template merge successful for ${repo_name}"
    git push
  else
    echo "Warning: Merge conflicts detected in ${repo_name}"
    popd
    continue
  fi

  popd
done <<< "${CLONE_URLS}"

echo ""
echo "All repositories processed successfully!"