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OrcaSlicer/src/slic3r/GUI/WCPDownloadManager.hpp

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C++

#ifndef slic3r_WCPDownloadManager_hpp_
#define slic3r_WCPDownloadManager_hpp_
#include <memory>
#include <string>
#include <unordered_map>
#include <mutex>
#include <atomic>
#include <chrono>
#include "../Utils/Http.hpp"
#include "SSWCP.hpp"
#include <boost/filesystem/path.hpp>
#include "nlohmann/json.hpp"
namespace Slic3r { namespace GUI {
// Download task state
enum class WCPDownloadState {
Pending,
Downloading,
Paused,
Completed,
Error,
Canceled
};
// Download task information
struct WCPDownloadTask {
size_t task_id;
std::string file_url;
std::string file_name;
std::string dest_path;
std::weak_ptr<SSWCP_Instance> wcp_instance; // Associated WCP instance
Http::Ptr http_object; // HTTP object for cancellation
WCPDownloadState state;
int percent;
std::string error_message;
WCPDownloadTask(size_t id, const std::string& url, const std::string& name,
const std::string& path, std::shared_ptr<SSWCP_Instance> instance)
: task_id(id), file_url(url), file_name(name), dest_path(path),
wcp_instance(instance), state(WCPDownloadState::Pending), percent(0) {}
};
// WCP Download Manager
class WCPDownloadManager {
public:
static WCPDownloadManager& getInstance() {
static WCPDownloadManager instance;
return instance;
}
// Start a download task
size_t start_download(const std::string& file_url,
const std::string& file_name,
std::shared_ptr<SSWCP_Instance> wcp_instance);
// Cancel a download task
bool cancel_download(size_t task_id);
// Pause a download task (if needed)
bool pause_download(size_t task_id);
// Resume a download task (if needed)
bool resume_download(size_t task_id);
// Get task state
WCPDownloadState get_task_state(size_t task_id);
// Get task information
std::shared_ptr<WCPDownloadTask> get_task(size_t task_id);
private:
WCPDownloadManager() = default;
~WCPDownloadManager() = default;
WCPDownloadManager(const WCPDownloadManager&) = delete;
WCPDownloadManager& operator=(const WCPDownloadManager&) = delete;
std::mutex m_tasks_mutex;
std::unordered_map<size_t, std::shared_ptr<WCPDownloadTask>> m_tasks;
std::atomic<size_t> m_next_task_id{1};
// Track last progress update for throttling
std::unordered_map<size_t, int> m_last_percent;
std::unordered_map<size_t, std::chrono::steady_clock::time_point> m_last_update;
// Send progress update to WCP
void send_progress_update(std::shared_ptr<WCPDownloadTask> task, int percent,
size_t downloaded, size_t total);
// Send completion message to WCP
void send_complete_update(std::shared_ptr<WCPDownloadTask> task, const std::string& file_path);
// Send error message to WCP
void send_error_update(std::shared_ptr<WCPDownloadTask> task, const std::string& error);
// Clean up completed task
void cleanup_task(size_t task_id);
};
}} // namespace Slic3r::GUI
#endif // slic3r_WCPDownloadManager_hpp_