#!/bin/bash

if [ "$#" -ne 3 ]; then
  echo "Usage: $0 <localfile> <remotefile>"
  exit 1
fi

localfile="$1"
remotefile="$2"
remotetmp="/var/tmp/4server"



while read -r host; do
  echo "Processing host: $host"

  host_env_file="$host_vars_dir/$host"

  if [ ! -f "$host_env_file" ]; then
    echo "Warning: env file for host '$host' not found at $host_env_file. Skipping."
    continue
  fi

  declare -A vars=()
  while IFS='=' read -r key value; do
    [[ -z "$key" || -z "$value" ]] && continue
    vars["$key"]="$value"
  done < "$host_env_file"

  content=$(cat "$localfile")

  for key in "${!vars[@]}"; do
    content=$(echo "$content" | sed "s|{$key}|${vars[$key]}|g")
  done

  echo "Copying to $host:$remotefile"
  echo "$content" | ssh "$host" "cat > $remotetmp"
  rex doas mv $remotetmp $remotefile

done < "$hosts_file"