/*
   BAREOS® - Backup Archiving REcovery Open Sourced

   Copyright (C) 2025-2026 Bareos GmbH & Co. KG

   This program is Free Software; you can redistribute it and/or
   modify it under the terms of version three of the GNU Affero General Public
   License as published by the Free Software Foundation and included
   in the file LICENSE.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   Affero General Public License for more details.

   You should have received a copy of the GNU Affero General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.
*/

#if !defined(PLUGIN_NAME)
#  error PLUGIN_NAME not set
#endif

#include "include/bareos.h"
#include "filed/fd_plugins.h"
#include "bareos_api.h"
#include "include/filetypes.h"
#include "include/job_level.h"
#include "parser.h"
#include "dump.h"
#include "plugin.h"
#include "lib/bool_string.h"
#include <comdef.h>
#include <time.h>

#include "util.h"

#include <charconv>
#include <memory>

#if defined(MSVC_JOINED_THE_MODERN_WORLD)
#  define warn_msg(ctx, fmt, ...) \
    JobLog((ctx), M_WARN, (fmt)__VA_OPT__(, ) __VA_ARGS__)
#  define err_msg(ctx, fmt, ...) \
    JobLog((ctx), M_ERROR, (fmt)__VA_OPT__(, ) __VA_ARGS__)
#  define fatal_msg(ctx, fmt, ...) \
    JobLog((ctx), M_FATAL, (fmt)__VA_OPT__(, ) __VA_ARGS__)
#  define info_msg(ctx, fmt, ...) \
    JobLog((ctx), M_INFO, (fmt)__VA_OPT__(, ) __VA_ARGS__)
#  define debug_msg(level, fmt, ...) \
    DebugLog((level), (fmt)__VA_OPT__(, ) __VA_ARGS__)
#else
#  define warn_msg(ctx, ...) JobLog((ctx), M_WARNING, __VA_ARGS__)
#  define err_msg(ctx, ...) JobLog((ctx), M_ERROR, __VA_ARGS__)
#  define fatal_msg(ctx, ...) JobLog((ctx), M_FATAL, __VA_ARGS__)
#  define info_msg(ctx, ...) JobLog((ctx), M_INFO, __VA_ARGS__)
#  define debug_msg(level, ...) DebugLog((level), __VA_ARGS__)
#endif

bool AmICompatibleWith(filedaemon::PluginApiDefinition* core_info)
{
  if (core_info->size != sizeof(*core_info)
      || core_info->version != FD_PLUGIN_INTERFACE_VERSION) {
    return false;
  }

  return true;
}

const PluginInformation my_info = {
    .size = sizeof(my_info),
    .version = FD_PLUGIN_INTERFACE_VERSION,
    .plugin_magic = FD_PLUGIN_MAGIC,
    .plugin_license = "Bareos AGPLv3",
    .plugin_author = "Sebastian Sura",
    .plugin_date = "March 2026",
    .plugin_version = "26.0.0",
    .plugin_description
    = "This plugin allows you to backup your windows system for disaster "
      "recovery.",
    .plugin_usage = PLUGIN_NAME
    R"(:save-unreferenced-disks=<yes|no>:save-unreferenced-partitions=<yes|no>:save-unreferenced-extents=<yes|no>:ignore-disks=<disks to ignore>

  save-unreferenced-disks=<yes|no>: try to save disks that contain no snapshotted data, default=yes
  save-unreferenced-partitions=<yes|no>: try to save partitions that contain no snapshotted data, default=yes
  save-unreferenced-extents=<yes|no>: try to save even unsnapshotted parts of partitions, default=yes
  disks to ignore: a comma-separated list of disk ids (i.e. '1,2,5') of disks
                   to not backup
)"};

std::string_view trim_left(std::string_view input)
{
  std::size_t chars_to_trim = 0;

  for (auto& c : input) {
    if (!isspace(c)) { break; }
    chars_to_trim += 1;
  }

  return input.substr(chars_to_trim);
}

std::string_view trim_right(std::string_view input)
{
  std::size_t chars_to_keep = input.size();

  for (size_t i = 0; i < input.size(); ++i) {
    auto c = input[input.size() - i - 1];
    if (!isspace(c)) { break; }
    chars_to_keep -= 1;
  }

  return input.substr(0, chars_to_keep);
}

std::string_view trim(std::string_view input)
{
  return trim_left(trim_right(input));
}

std::string_view next_part(std::string_view& input, char sep)
{
  auto sep_pos = input.find_first_of(sep);

  if (sep_pos == input.npos) {
    auto temp = input;
    input = {};
    return temp;
  } else {
    auto temp = input.substr(0, sep_pos);
    input.remove_prefix(sep_pos + 1);
    return temp;
  }
}

std::size_t next_option(std::string_view& to_parse,
                        std::span<const std::string_view> keywords,
                        std::string_view* value)
{
  // we dont want to change to_parse, if we cannot find a keyword
  auto working_copy = to_parse;
  debug_msg(300, "to_parse = {}", working_copy);

  auto found = next_part(working_copy, ':');

  auto input = trim_left(found);
  debug_msg(300, " => input = {}", input);

  auto key = trim_right(next_part(input, '='));


  debug_msg(300, " => key = {}, value = {}", key, input);
  *value = trim(input);

  for (size_t i = 0; i < keywords.size(); ++i) {
    if (key == keywords[i]) {
      debug_msg(300, " => keyword #{}", i);
      // if we found a keyword, then we update to_parse
      to_parse = working_copy;
      return i;
    }
  }

  debug_msg(300, " => keyword not found");
  return keywords.size();
}

std::optional<std::string> insert_numbers(std::vector<std::size_t>& nums,
                                          std::string_view to_parse)
{
  auto current = to_parse;
  debug_msg(300, "converting '{}' into a list of numbers", to_parse);
  for (;;) {
    current = trim_left(current);
    if (current.size() == 0) { break; }


    auto found = trim_right(next_part(current, ','));

    debug_msg(300, " => converting '{}'", found);

    std::size_t number = 0;
    auto conversion_result = std::from_chars(
        found.data(), found.data() + found.size(), number, 10);

    auto left_over = found.substr(conversion_result.ptr - found.data());

    if (conversion_result.ec != std::errc{}) {
      switch (conversion_result.ec) {
        case std::errc::invalid_argument: {
          return libbareos::format("could not parse {} as a number", found);
        } break;
        case std::errc::result_out_of_range: {
          return libbareos::format("'{}' is out of the acceptable range",
                                   found);
        } break;
      }
    }

    debug_msg(300, " => left_over = '{}'", left_over);

    bool ignore_left_over = true;

    for (auto c : left_over) {
      if (!isspace(c)) {
        ignore_left_over = false;
        break;
      }
    }

    if (!ignore_left_over) {
      return libbareos::format("'{}' contains unparsable junk ({})", found,
                               left_over);
    }

    debug_msg(300, " => parsed {}", number);

    nums.push_back(number);
  }
  return std::nullopt;
}

constexpr std::size_t index_of(std::span<const std::string_view> keywords,
                               std::string_view keyword)
{
  for (std::size_t i = 0; i < keywords.size(); ++i) {
    if (keywords[i] == keyword) { return i; }
  }

  throw std::logic_error{"no such keyword"};
}

struct plugin_arguments {
  static std::optional<plugin_arguments> parse(PluginContext* ctx,
                                               std::string_view str)
  {
    static constexpr std::string_view save_unreferenced_disks
        = "save-unreferenced-disks";
    static constexpr std::string_view save_unreferenced_partitions
        = "save-unreferenced-partitions";
    static constexpr std::string_view save_unreferenced_extents
        = "save-unreferenced-extents";
    static constexpr std::string_view ignore_disks = "ignore-disks";
    static constexpr std::string_view keywords[] = {
        save_unreferenced_disks,
        save_unreferenced_partitions,
        save_unreferenced_extents,
        ignore_disks,
    };

    auto name = next_part(str, ':');

    debug_msg(300, "got name = '{}'", name);

    if (name != PLUGIN_NAME) {
      err_msg(ctx, "bad plugin options received, expected '{}', got '{}'",
              PLUGIN_NAME, name);
      return {};
    }

    plugin_arguments args{};
    for (;;) {
      str = trim_left(str);

      if (str.size() == 0) { break; }

      std::string_view value = {};
      switch (next_option(str, keywords, &value)) {
        case index_of(keywords, save_unreferenced_disks): {
          switch (parse_user_bool(value)) {
            case parse_bool_result::True: {
              args.save_unknown_disks = true;
            } break;
            case parse_bool_result::False: {
              args.save_unknown_disks = false;
            } break;
            case parse_bool_result::Error: {
              fatal_msg(ctx, "unexpected value {} for {} flag", value,
                        save_unreferenced_disks);
              return std::nullopt;
            } break;
          }
        } break;

        case index_of(keywords, save_unreferenced_partitions): {
          switch (parse_user_bool(value)) {
            case parse_bool_result::True: {
              args.save_unknown_partitions = true;
            } break;
            case parse_bool_result::False: {
              args.save_unknown_partitions = false;
            } break;
            case parse_bool_result::Error: {
              fatal_msg(ctx, "unexpected value {} for {} flag", value,
                        save_unreferenced_partitions);
              return std::nullopt;
            } break;
          }
        } break;

        case index_of(keywords, save_unreferenced_extents): {
          switch (parse_user_bool(value)) {
            case parse_bool_result::True: {
              args.save_unknown_extents = true;
            } break;
            case parse_bool_result::False: {
              args.save_unknown_extents = false;
            } break;
            case parse_bool_result::Error: {
              fatal_msg(ctx, "unexpected value {} for {} flag", value,
                        save_unreferenced_extents);
              return std::nullopt;
            } break;
          }
        } break;

        case index_of(keywords, ignore_disks): {
          if (value.empty()) {
            fatal_msg(ctx, "unexpected empty value for {} option",
                      ignore_disks);
            return std::nullopt;
          }
          if (auto error = insert_numbers(args.ignored_disks, value)) {
            fatal_msg(ctx, "could not parse {} as a list of ints ({}): {}",
                      value, ignore_disks, error.value());
            return std::nullopt;
          }
        } break;
        default: {
          fatal_msg(ctx, "could not parse plugin options string '{}'", str);

          return std::nullopt;
        } break;
      }
    }

    return args;
  }

  void apply_dump_context_settings(dump_context* ctx) const
  {
    dump_context_save_unknown_disks(ctx, save_unknown_disks);
    dump_context_save_unknown_partitions(ctx, save_unknown_partitions);
    dump_context_save_unknown_extents(ctx, save_unknown_extents);

    for (auto disk_id : ignored_disks) {
      dump_context_ignore_disk(ctx, disk_id);
    }
  }

 private:
  std::vector<size_t> ignored_disks;
  bool save_unknown_disks{true};
  bool save_unknown_partitions{true};
  bool save_unknown_extents{true};
};

struct plugin_logger : public GenericLogger {
  using Clock = std::chrono::steady_clock;

  void Begin(std::size_t FileSize) override
  {
    current_file_size = FileSize;
    current_file_offset = 0;
    last_file_offset = 0;
    last_time_stamp = Clock::now();

    data_milestone = FileSize / 10;  // around ~10 prints
  }
  void Progressed(std::size_t Amount) override
  {
    current_file_offset += Amount;

    auto current_ts = Clock::now();

    bool time_elapsed = current_ts - last_time_stamp > time_milestone;
    bool milestone_reached
        = current_file_offset - last_file_offset > data_milestone;
    if (time_elapsed || milestone_reached || last_file_offset == 0) {
      print_progress(current_ts, current_file_offset);
    }
  }
  void End() override { current_file_size = 0; }

  void SetStatus(std::string_view Status) override { (void)Status; }
  void Output(Message message) override
  {
    if (message.is_trace) {
      DebugLog(ctx, 500, "{}", message.text);
    } else {
      JobLog(ctx, M_INFO, "{}", message.text);
    }

    if (messages.size() < max_messages_size) {
      // lets make sure that this does not grow too big.
      messages.insert(messages.end(), message.text.begin(), message.text.end());
      messages.push_back('\n');
    }
  }

  plugin_logger(PluginContext* ctx_) : GenericLogger{true}, ctx{ctx_} {}

  std::span<const char> log() const { return messages; }

 private:
  void print_progress(Clock::time_point current_ts, std::size_t current_offset)
  {
    if (!current_file_size) { return; }

    auto data_written = current_offset - last_file_offset;

    auto progress = static_cast<double>(current_offset)
                    / static_cast<double>(current_file_size);

    auto seconds = std::chrono::duration_cast<std::chrono::seconds>(
        current_ts - last_time_stamp);

    if (seconds.count() == 0) { return; }

    auto approx_speed = data_written / seconds.count();

    std::string log_msg = format_progress_bar(progress, approx_speed, 20);

    Message msg = {log_msg, false};

    Output(msg);

    last_file_offset = current_offset;
    last_time_stamp = current_ts;
  }

  PluginContext* ctx;

  Clock::time_point last_time_stamp;
  std::size_t last_file_offset;
  std::size_t current_file_offset = 0;
  std::size_t current_file_size = 0;
  std::size_t data_milestone = 0;
  static constexpr Clock::duration time_milestone = std::chrono::minutes(5);

  static constexpr std::size_t max_messages_size = 1 << 30;  // 1GB
  std::vector<char> messages;
};

struct session_ctx {
  plugin_logger logger;
  std::unique_ptr<dump_context,
                  decltype([](dump_context* ctx) { destroy_context(ctx); })>
      dctx{};
  std::unique_ptr<data_dumper,
                  decltype([](data_dumper* ptr) { dumper_stop(ptr); })>
      dumper{};

  session_ctx(PluginContext* ctx, const plugin_arguments& args)
      : logger{ctx}, dctx{make_context(&logger)}
  {
    args.apply_dump_context_settings(dctx.get());
    dumper.reset(dumper_setup(&logger, dump_context_create_plan(dctx.get())));
  }
};

struct plugin_ctx {
  void set_plugin_args(plugin_arguments args_) { args = args_; }

  void begin_session(PluginContext* ctx) { current_session.emplace(ctx, args); }

  std::size_t session_read(std::span<char> data)
  {
    if (!current_session) { return 0; }
    return dumper_write(current_session->dumper.get(), data);
  }

  bool has_session() const { return current_session.has_value(); }

  std::optional<session_ctx> current_session;

  struct CoUninitializer {
    ~CoUninitializer() { CoUninitialize(); }
  };

  CoUninitializer unititializer{};
  plugin_arguments args{};

  enum class file : std::size_t
  {
    Dump,
    Log,
    Count,
  };
  file current_file = file::Dump;

  std::string dump_file_name;
  std::string log_file_name;
  time_t timestamp;
  std::size_t log_bytes_sent = 0;
};

plugin_ctx* get_private_context(PluginContext* ctx)
{
  return reinterpret_cast<plugin_ctx*>(ctx->plugin_private_context);
}

void set_private_context(PluginContext* ctx, plugin_ctx* priv_ctx)
{
  ctx->plugin_private_context = priv_ctx;
}

bRC newPlugin(PluginContext* ctx)
{
  auto hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);

  if (FAILED(hr)) {
    _com_error err(hr);
    err_msg(ctx, "could not initialize com: {}", err.ErrorMessage());
  }

  set_private_context(ctx, new plugin_ctx);
  RegisterBareosEvent(ctx, filedaemon::bEventPluginCommand);
  RegisterBareosEvent(ctx, filedaemon::bEventNewPluginOptions);
  RegisterBareosEvent(ctx, filedaemon::bEventPluginCommand);
  RegisterBareosEvent(ctx, filedaemon::bEventJobStart);
  RegisterBareosEvent(ctx, filedaemon::bEventRestoreCommand);
  RegisterBareosEvent(ctx, filedaemon::bEventEstimateCommand);
  RegisterBareosEvent(ctx, filedaemon::bEventBackupCommand);
  RegisterBareosEvent(ctx, filedaemon::bEventRestoreObject);

  std::optional client_name = bVar::Get<bVar::Client>(ctx);
  if (!client_name) {
    fatal_msg(ctx, "could not retrieve client name from the bareos api!");
    return bRC_Error;
  }

  auto now = time(NULL);

  auto pctx = get_private_context(ctx);

  std::string_view hostname{client_name.value()};
  pctx->dump_file_name
      = libbareos::format("@BARRI/{}{}", hostname, dump_ending);
  pctx->log_file_name = libbareos::format("@BARRI/{}{}", hostname, log_ending);

  pctx->timestamp = now;

  return bRC_OK;
}

bRC freePlugin(PluginContext* ctx)
{
  auto* pctx = get_private_context(ctx);
  set_private_context(ctx, nullptr);
  delete pctx;
  return bRC_OK;
}

bRC getPluginValue(PluginContext*, filedaemon::pVariable, void*)
{
  /* UNUSED */
  return bRC_Error;
}
bRC setPluginValue(PluginContext*, filedaemon::pVariable, void*)
{
  /* UNUSED */
  return bRC_Error;
}

bRC handlePluginEvent(PluginContext* ctx, filedaemon::bEvent* event, void* data)
{
  auto* pctx = get_private_context(ctx);
  switch (event->eventType) {
    case filedaemon::bEventPluginCommand: {
      std::optional arguments
          = plugin_arguments::parse(ctx, static_cast<const char*>(data));

      if (!arguments) {
        DebugLog(ctx, 300, "plugin option string could not be parsed");
        return bRC_Error;
      }
      pctx->set_plugin_args(std::move(arguments.value()));
      return bRC_OK;
    } break;

    case filedaemon::bEventNewPluginOptions:
      [[fallthrough]];
    case filedaemon::bEventBackupCommand:
      [[fallthrough]];
    case filedaemon::bEventEstimateCommand:
      [[fallthrough]];
    case filedaemon::bEventRestoreCommand: {
      std::optional arguments
          = plugin_arguments::parse(ctx, static_cast<const char*>(data));

      if (!arguments) {
        DebugLog(ctx, 300, "plugin option string could not be parsed");
        return bRC_Error;
      }

      pctx->set_plugin_args(std::move(arguments.value()));
      return bRC_OK;
    } break;
  }
  return bRC_Error;
}

bRC startBackupFile(PluginContext* ctx, filedaemon::save_pkt* sp)
{
  auto* pctx = get_private_context(ctx);

  // first we check if this is a full backup.  If not, we reject the backup
  {
    /* one would imagine it would make the most sense to do this check
     * in handlePluginEvent(bEventLevel), but that does not work:
     * - the check is not reliable: other plugins can swallow the event
     * - there is no good way to stop the backup: the return value is basically
     *   ignored; a fatal error message stops the job in a very bad place,
     *   leading to bad job logs and stuck jobs.
     * This is why this check was moved here */

    auto level = bVar::Get<bVar::Level>(ctx);
    if (!level) {
      fatal_msg(ctx,
                "could not determine the level that we are supposed to be "
                "running at");
      return bRC_Error;
    }

    if (level.value() != L_FULL) {
      fatal_msg(
          ctx,
          "this plugin only supports full backups, but level={} was requested",
          static_cast<char>(level.value()));
      return bRC_Stop;
    }
  }

  if (pctx->current_file == plugin_ctx::file::Dump) {
    // setting this does not do anything yet.  Maybe it will in the future
    sp->portable = true;  // we do not create windows backup data streams

    sp->fname = const_cast<char*>(pctx->dump_file_name.c_str());
    sp->type = FT_REG;
    sp->statp.st_mode = 0700 | S_IFREG;
    sp->statp.st_ctime = pctx->timestamp;
    sp->statp.st_mtime = pctx->timestamp;
    sp->statp.st_atime = pctx->timestamp;
    sp->statp.st_size = -1;
    sp->statp.st_blksize = 4096;
    sp->statp.st_blocks = 1;
  } else if (pctx->current_file == plugin_ctx::file::Log) {
    if (!pctx->current_session) {
      fatal_msg(ctx, "cannot backup log of a session that does not exist");
      return bRC_Error;
    }

    sp->portable = true;  // we do not create windows backup data streams

    sp->fname = const_cast<char*>(pctx->log_file_name.c_str());
    sp->type = FT_REG;
    sp->statp.st_mode = 0700 | S_IFREG;
    sp->statp.st_ctime = pctx->timestamp;
    sp->statp.st_mtime = pctx->timestamp;
    sp->statp.st_atime = pctx->timestamp;
    sp->statp.st_size = pctx->current_session->logger.log().size();
    sp->statp.st_blksize = 4096;
    sp->statp.st_blocks = (sp->statp.st_size + 4095) / 4096;
  } else {
    err_msg(ctx, "cannot create a third file.");
    return bRC_Error;
  }

  return bRC_OK;
}

bRC endBackupFile(PluginContext* ctx)
{
  auto* pctx = get_private_context(ctx);
  pctx->current_file = static_cast<plugin_ctx::file>(
      static_cast<std::size_t>(pctx->current_file) + 1);
  if (pctx->current_file != plugin_ctx::file::Count) { return bRC_More; }
  return bRC_OK;
}

bRC startRestoreFile(PluginContext* ctx, const char* file_name)
{
  (void)ctx;
  (void)file_name;
  return bRC_Error;
}

bRC endRestoreFile(PluginContext* ctx)
{
  (void)ctx;
  return bRC_Error;
}

bRC pluginIO_Dump(PluginContext* ctx, filedaemon::io_pkt* pkt)
{
  auto* pctx = get_private_context(ctx);
  switch (pkt->func) {
    case filedaemon::IO_OPEN: {
      if (pctx->has_session()) {
        err_msg(ctx, "context can only be created once");
        pkt->status = -1;
        return bRC_Error;
      }
      try {
        pctx->begin_session(ctx);
        pkt->status = 0;
        return bRC_OK;
      } catch (const std::exception& ex) {
        err_msg(ctx, "could not start: {}", ex.what());
        pkt->status = -1;
        return bRC_Error;
      } catch (...) {
        err_msg(ctx, "could not start: unknown error occurred");
        pkt->status = -1;
        return bRC_Error;
      }
    } break;
    case filedaemon::IO_READ: {
      if (pkt->count < 0) {
        err_msg(ctx, "its impossible to read {} bytes...", pkt->count);
        pkt->status = -1;
        return bRC_Error;
      }
      pkt->status = pctx->session_read(
          std::span{pkt->buf, static_cast<std::size_t>(pkt->count)});
      return bRC_OK;
    } break;
    case filedaemon::IO_CLOSE: {
      if (!pctx->has_session()) {
        err_msg(ctx, "context can only be closed, if its open");
        pkt->status = -1;
        return bRC_Error;
      }
      pkt->status = 0;
      return bRC_OK;
    } break;
  }

  fatal_msg(ctx, "unhandled code path: {}", pkt->func);
  return bRC_Error;
}

bRC pluginIO_Log(PluginContext* ctx, filedaemon::io_pkt* pkt)
{
  auto* pctx = get_private_context(ctx);
  switch (pkt->func) {
    case filedaemon::IO_OPEN: {
      if (!pctx->has_session()) {
        err_msg(ctx, "cannot open log: no session open");
        pkt->status = -1;
        return bRC_Error;
      }
      return bRC_OK;
    } break;
    case filedaemon::IO_READ: {
      if (pkt->count < 0) {
        err_msg(ctx, "it is impossible to read {} bytes...", pkt->count);
        pkt->status = -1;
        return bRC_Error;
      }

      auto log = pctx->current_session->logger.log();

      std::size_t& log_bytes_sent = pctx->log_bytes_sent;
      auto bytes_to_read = std::min(log.size() - log_bytes_sent,
                                    static_cast<std::size_t>(pkt->count));

      memcpy(pkt->buf, log.data() + log_bytes_sent, bytes_to_read);
      pkt->status = bytes_to_read;
      log_bytes_sent += bytes_to_read;
      return bRC_OK;
    } break;
    case filedaemon::IO_CLOSE: {
      pkt->status = 0;
      return bRC_OK;
    } break;
  }
  fatal_msg(ctx, "unhandled code path: {}", pkt->func);
  return bRC_Error;
}

bRC pluginIO(PluginContext* ctx, filedaemon::io_pkt* pkt)
{
  auto* pctx = get_private_context(ctx);

  auto handler = [&] {
    switch (pctx->current_file) {
      case plugin_ctx::file::Dump: {
        return &pluginIO_Dump;
      } break;
      case plugin_ctx::file::Log: {
        return &pluginIO_Log;
      } break;
    }
    return static_cast<decltype(&pluginIO_Dump)>(nullptr);
  }();

  if (!handler) {
    fatal_msg(ctx, "could not find handler for file {}",
              static_cast<std::size_t>(pctx->current_file));
    return bRC_Error;
  }


  switch (pkt->func) {
    case filedaemon::IO_OPEN:
      [[fallthrough]];
    case filedaemon::IO_READ:
      [[fallthrough]];
    case filedaemon::IO_CLOSE: {
      return handler(ctx, pkt);
    } break;

    case filedaemon::IO_WRITE: {
      err_msg(ctx, "restores are not supported on the windows plugin");
      pkt->status = -1;
      return bRC_Error;
    } break;
  }
  return bRC_Error;
}

bRC createFile(PluginContext* ctx, filedaemon::restore_pkt* pkt)
{
  (void)ctx;
  (void)pkt;
  return bRC_Error;
}

bRC setFileAttributes(PluginContext* ctx, filedaemon::restore_pkt* pkt)
{
  (void)ctx;
  (void)pkt;
  return bRC_Error;
}

bRC checkFile(PluginContext* ctx, char* file_name)
{
  (void)ctx;
  (void)file_name;
  return bRC_Error;
}

bRC getAcl(PluginContext* ctx, filedaemon::acl_pkt* pkt)
{
  (void)ctx;
  (void)pkt;
  return bRC_Error;
}

bRC setAcl(PluginContext* ctx, filedaemon::acl_pkt* pkt)
{
  (void)ctx;
  (void)pkt;
  return bRC_Error;
}

bRC getXattr(PluginContext* ctx, filedaemon::xattr_pkt* pkt)
{
  (void)ctx;
  (void)pkt;
  return bRC_Error;
}

bRC setXattr(PluginContext* ctx, filedaemon::xattr_pkt* pkt)
{
  (void)ctx;
  (void)pkt;
  return bRC_Error;
}

const filedaemon::PluginFunctions my_functions = {
    .size = sizeof(my_functions),
    .version = FD_PLUGIN_INTERFACE_VERSION,
    .newPlugin = &newPlugin,
    .freePlugin = &freePlugin,
    .getPluginValue = &getPluginValue,
    .setPluginValue = &setPluginValue,
    .handlePluginEvent = &handlePluginEvent,
    .startBackupFile = &startBackupFile,
    .endBackupFile = &endBackupFile,
    .startRestoreFile = &startRestoreFile,
    .endRestoreFile = &endRestoreFile,
    .pluginIO = &pluginIO,
    .createFile = &createFile,
    .setFileAttributes = &setFileAttributes,
    .checkFile = &checkFile,
    .getAcl = &getAcl,
    .setAcl = &setAcl,
    .getXattr = &getXattr,
    .setXattr = &setXattr,
};

extern "C" __declspec(dllexport) int loadPlugin(
    filedaemon::PluginApiDefinition* core_info,
    filedaemon::CoreFunctions* core_funcs,
    PluginInformation** plugin_info,
    filedaemon::PluginFunctions** plugin_funcs)
{
  if (!SetupBareosApi(core_funcs)) { return -1; }

  if (!AmICompatibleWith(core_info)) { return -1; }

  *plugin_info = const_cast<PluginInformation*>(&my_info);
  *plugin_funcs = const_cast<filedaemon::PluginFunctions*>(&my_functions);

  return 0;
}

extern "C" __declspec(dllexport) int unloadPlugin() { return 0; }
