//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once

#include "td/telegram/DialogId.h"
#include "td/telegram/FileReferenceManager.h"
#include "td/telegram/FileReferenceManager.hpp"
#include "td/telegram/files/FileEncryptionKey.h"
#include "td/telegram/files/FileLocation.h"
#include "td/telegram/files/FileSourceId.h"
#include "td/telegram/Global.h"
#include "td/telegram/Td.h"

#include "td/utils/common.h"
#include "td/utils/format.h"
#include "td/utils/misc.h"
#include "td/utils/StringBuilder.h"
#include "td/utils/tl_helpers.h"

namespace td {

class FileData {
 public:
  DialogId owner_dialog_id_;
  uint64 pmc_id_ = 0;
  RemoteFileLocation remote_;
  LocalFileLocation local_;
  unique_ptr<FullGenerateFileLocation> generate_;
  int64 size_ = 0;
  int64 expected_size_ = 0;
  string remote_name_;
  string url_;
  FileEncryptionKey encryption_key_;
  vector<FileSourceId> file_source_ids_;

  template <class StorerT>
  void store(StorerT &storer) const {
    using ::td::store;
    bool has_owner_dialog_id = owner_dialog_id_.is_valid();
    bool has_expected_size = size_ == 0 && expected_size_ != 0;
    bool encryption_key_is_secure = encryption_key_.is_secure();
    bool has_sources = !file_source_ids_.empty();
    BEGIN_STORE_FLAGS();
    STORE_FLAG(has_owner_dialog_id);
    STORE_FLAG(has_expected_size);
    STORE_FLAG(encryption_key_is_secure);
    STORE_FLAG(has_sources);
    END_STORE_FLAGS();

    if (has_owner_dialog_id) {
      store(owner_dialog_id_, storer);
    }
    store(pmc_id_, storer);
    store(remote_, storer);
    store(local_, storer);
    auto generate = generate_ == nullptr ? GenerateFileLocation() : GenerateFileLocation(*generate_);
    store(generate, storer);
    if (has_expected_size) {
      store(expected_size_, storer);
    } else {
      store(size_, storer);
    }
    store(remote_name_, storer);
    store(url_, storer);
    store(encryption_key_, storer);
    if (has_sources) {
      auto td = G()->td().get_actor_unsafe();
      store(narrow_cast<int32>(file_source_ids_.size()), storer);
      for (auto file_source_id : file_source_ids_) {
        td->file_reference_manager_->store_file_source(file_source_id, storer);
      }
    }
  }
  template <class ParserT>
  void parse(ParserT &parser) {
    using ::td::parse;
    bool has_owner_dialog_id;
    bool has_expected_size;
    bool encryption_key_is_secure;
    bool has_sources;
    BEGIN_PARSE_FLAGS();
    PARSE_FLAG(has_owner_dialog_id);
    PARSE_FLAG(has_expected_size);
    PARSE_FLAG(encryption_key_is_secure);
    PARSE_FLAG(has_sources);
    END_PARSE_FLAGS_GENERIC();

    if (has_owner_dialog_id) {
      parse(owner_dialog_id_, parser);
    }
    parse(pmc_id_, parser);
    parse(remote_, parser);
    parse(local_, parser);
    GenerateFileLocation generate;
    parse(generate, parser);
    if (generate.type() == GenerateFileLocation::Type::Full) {
      generate_ = make_unique<FullGenerateFileLocation>(generate.full());
    } else {
      generate_ = nullptr;
    }
    if (has_expected_size) {
      parse(expected_size_, parser);
    } else {
      parse(size_, parser);
    }
    parse(remote_name_, parser);
    parse(url_, parser);
    encryption_key_.parse(encryption_key_is_secure ? FileEncryptionKey::Type::Secure : FileEncryptionKey::Type::Secret,
                          parser);
    if (has_sources) {
      auto td = G()->td().get_actor_unsafe();
      int32 size;
      parse(size, parser);
      if (0 < size && size < 5) {
        for (int i = 0; i < size; i++) {
          file_source_ids_.push_back(td->file_reference_manager_->parse_file_source(td, parser));
        }
      } else {
        parser.set_error("Wrong number of file source ids");
      }
    }
  }
};

inline StringBuilder &operator<<(StringBuilder &sb, const FileData &file_data) {
  sb << "[" << tag("remote_name", file_data.remote_name_) << " " << file_data.owner_dialog_id_ << " "
     << tag("size", file_data.size_) << tag("expected_size", file_data.expected_size_) << " "
     << file_data.encryption_key_;
  if (!file_data.url_.empty()) {
    sb << tag("url", file_data.url_);
  }
  if (file_data.local_.type() == LocalFileLocation::Type::Full) {
    sb << " local " << file_data.local_.full();
  }
  if (file_data.generate_ != nullptr) {
    sb << " generate " << *file_data.generate_;
  }
  if (file_data.remote_.type() == RemoteFileLocation::Type::Full) {
    sb << " remote " << file_data.remote_.full();
  }
  sb << format::as_array(file_data.file_source_ids_);
  return sb << "]";
}

}  // namespace td