#!/bin/bash

set -Eeuo pipefail

declare -a exit_hooks=()
function cleanup () {
  for hook in "${exit_hooks[@]}"; do
    echo "Running cleanup hook: $hook"
    eval "$hook"
  done
}
trap "cleanup" EXIT
function addExitHook () {
  exit_hooks+=("$1")
}

DEST="$(mktemp -d -t 'hugo-href-check.XXXXXX')"
addExitHook "rm -rf \$DEST"
echo "All artefacts will be generated in $DEST"

#echo "Generating and serving content..."
#./hugo serve -p 1313 -b http://localhost:1313/ --disableLiveReload --disableBrowserError --watch false --logLevel info --quiet --appendPort false &>"$DEST/hugo.log" &
#addExitHook "pkill -e --ignore-ancestors --full '^hugo'"

echo "Generating content..."
mkdir -p "$DEST/html" "$DEST/nginx"
./hugo -b http://localhost:1313/ -d "$DEST/html"

echo "Serving content with nginx..."
cat > "$DEST/nginx.conf" <<EOF
worker_processes auto;
error_log $DEST/nginx/error.log notice;
pid $DEST/nginx/nginx.pid;

events {
    worker_connections 1024;
}
http {
  client_body_temp_path $DEST/nginx/client_temp;
  proxy_temp_path       $DEST/nginx/proxy_temp_path;
  fastcgi_temp_path     $DEST/nginx/fastcgi_temp;
  uwsgi_temp_path       $DEST/nginx/uwsgi_temp;
  scgi_temp_path        $DEST/nginx/scgi_temp;
  error_log             $DEST/nginx/error.log;
  log_format            main  '\$remote_addr - \$remote_user [\$time_local] "\$request" \$status \$body_bytes_sent "\$http_referer" "\$http_user_agent" "\$http_x_forwarded_for"';
  access_log            $DEST/nginx/access.log  main;
  include               /etc/nginx/mime.types;
  default_type          application/octet-stream;
  server {
    listen              1313;
    server_name         _;
    root                $DEST/html;
  }
}
EOF
nginx -e stderr -c "$DEST/nginx.conf" -g "daemon off;" &
addExitHook 'if [ -n "$(jobs -rp)" ]; then kill $(jobs -rp); fi'

while ! curl -o /dev/null -sf http://localhost:1313/; do
  echo "Waiting for nginx to start..."
  sleep 1
done

echo "Starting web spider..."
cd "$DEST"
muffet -i 'http://localhost:1313/.*' --accepted-status-codes=200 --max-redirections=0 http://localhost:1313/