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include/download/direct_download.hpp

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+/*
+  Copyright <2018-2022> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+  associated documentation files (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge, publish, distribute,
+  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all copies or
+  substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
+  OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+#ifndef INCLUDE_DOWNLOAD_DIRECT_DOWNLOAD_HPP_
+#define INCLUDE_DOWNLOAD_DIRECT_DOWNLOAD_HPP_
+
+#include "common.hpp"
+#include "download/i_download.hpp"
+#include "types/repertory.hpp"
+
+namespace repertory {
+class buffered_reader;
+class app_config;
+class direct_download final : public virtual i_download {
+public:
+  direct_download(const app_config &config, filesystem_item fsi,
+                  const api_reader_callback &api_reader, const std::uint64_t &handle);
+
+  ~direct_download() override;
+
+private:
+  const app_config &config_;
+  const filesystem_item fsi_;
+  const api_reader_callback &api_reader_;
+  const std::uint64_t handle_;
+
+  api_error error_ = api_error::success;
+  std::unique_ptr<buffered_reader> buffered_reader_;
+  bool disable_download_end_ = false;
+  bool download_end_notified_ = false;
+  double progress_ = 0.0;
+  std::mutex read_mutex_;
+  bool stop_requested_ = false;
+
+private:
+  bool is_active() const { return not stop_requested_ && (error_ == api_error::success); }
+
+  void notify_download_end();
+
+  void set_api_error(const api_error &error);
+
+public:
+  api_error allocate(const std::uint64_t & /*handle*/, const std::uint64_t & /*size*/,
+                     const allocator_callback & /*allocator*/,
+                     const completer_callback & /*completer*/) override {
+    return api_error::not_implemented;
+  }
+
+  api_error download_all() override { return api_error::not_implemented; }
+
+  api_error get_result() const override { return error_; }
+
+  std::string get_source_path() const override { return ""; }
+
+  void get_state_information(filesystem_item &, std::size_t &, std::size_t &,
+                             boost::dynamic_bitset<> &, boost::dynamic_bitset<> &) override {}
+
+  bool get_write_supported() const override { return false; }
+
+  void notify_stop_requested() override;
+
+  bool pause() override { return false; }
+
+  api_error read_bytes(const std::uint64_t &, std::size_t read_size,
+                       const std::uint64_t &read_offset, std::vector<char> &data) override;
+
+  void reset_timeout(const bool &) override {}
+
+  void resume() override {}
+
+  void set_api_path(const std::string &) override {}
+
+  void set_disable_download_end(const bool &disable) override { disable_download_end_ = disable; }
+
+  api_error write_bytes(const std::uint64_t &, const std::uint64_t &, std::vector<char>,
+                        std::size_t &bytes_written,
+                        const completer_callback & /*completer*/) override {
+    bytes_written = 0u;
+    return api_error::not_implemented;
+  }
+};
+} // namespace repertory
+
+#endif // INCLUDE_DOWNLOAD_DIRECT_DOWNLOAD_HPP_