gpt4all/gpt4all-chat/database.h

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#ifndef DATABASE_H
#define DATABASE_H
#include <QObject>
#include <QtSql>
#include <QQueue>
#include <QFileInfo>
#include <QThread>
#include <QFileSystemWatcher>
#include "embllm.h"
class Embeddings;
struct DocumentInfo
{
int folder;
QFileInfo doc;
int currentPage = 0;
size_t currentPosition = 0;
bool currentlyProcessing = false;
bool isPdf() const {
return doc.suffix() == QLatin1String("pdf");
}
};
struct ResultInfo {
QString file; // [Required] The name of the file, but not the full path
QString title; // [Optional] The title of the document
QString author; // [Optional] The author of the document
QString date; // [Required] The creation or the last modification date whichever is latest
QString text; // [Required] The text actually used in the augmented context
int page = -1; // [Optional] The page where the text was found
int from = -1; // [Optional] The line number where the text begins
int to = -1; // [Optional] The line number where the text ends
};
struct CollectionItem {
QString collection;
QString folder_path;
int folder_id = -1;
bool installed = false;
bool indexing = false;
QString error;
int currentDocsToIndex = 0;
int totalDocsToIndex = 0;
size_t currentBytesToIndex = 0;
size_t totalBytesToIndex = 0;
size_t currentEmbeddingsToIndex = 0;
size_t totalEmbeddingsToIndex = 0;
};
Q_DECLARE_METATYPE(CollectionItem)
class Database : public QObject
{
Q_OBJECT
public:
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Database(int chunkSize);
virtual ~Database();
public Q_SLOTS:
void scanQueue();
void scanDocuments(int folder_id, const QString &folder_path);
void addFolder(const QString &collection, const QString &path);
void removeFolder(const QString &collection, const QString &path);
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void retrieveFromDB(const QList<QString> &collections, const QString &text, int retrievalSize, QList<ResultInfo> *results);
void cleanDB();
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void changeChunkSize(int chunkSize);
Q_SIGNALS:
void docsToScanChanged();
void updateInstalled(int folder_id, bool b);
void updateIndexing(int folder_id, bool b);
void updateError(int folder_id, const QString &error);
void updateCurrentDocsToIndex(int folder_id, size_t currentDocsToIndex);
void updateTotalDocsToIndex(int folder_id, size_t totalDocsToIndex);
void subtractCurrentBytesToIndex(int folder_id, size_t subtractedBytes);
void updateCurrentBytesToIndex(int folder_id, size_t currentBytesToIndex);
void updateTotalBytesToIndex(int folder_id, size_t totalBytesToIndex);
void updateCurrentEmbeddingsToIndex(int folder_id, size_t currentBytesToIndex);
void updateTotalEmbeddingsToIndex(int folder_id, size_t totalBytesToIndex);
void addCollectionItem(const CollectionItem &item);
void removeFolderById(int folder_id);
void removeCollectionItem(const QString &collectionName);
void collectionListUpdated(const QList<CollectionItem> &collectionList);
private Q_SLOTS:
void start();
void directoryChanged(const QString &path);
bool addFolderToWatch(const QString &path);
bool removeFolderFromWatch(const QString &path);
void addCurrentFolders();
void handleEmbeddingsGenerated(const QVector<EmbeddingResult> &embeddings);
void handleErrorGenerated(int folder_id, const QString &error);
private:
void removeFolderInternal(const QString &collection, int folder_id, const QString &path);
size_t chunkStream(QTextStream &stream, int folder_id, int document_id, const QString &file,
const QString &title, const QString &author, const QString &subject, const QString &keywords, int page,
int maxChunks = -1);
void removeEmbeddingsByDocumentId(int document_id);
void scheduleNext(int folder_id, size_t countForFolder);
void handleDocumentError(const QString &errorMessage,
int document_id, const QString &document_path, const QSqlError &error);
size_t countOfDocuments(int folder_id) const;
size_t countOfBytes(int folder_id) const;
DocumentInfo dequeueDocument();
void removeFolderFromDocumentQueue(int folder_id);
void enqueueDocumentInternal(const DocumentInfo &info, bool prepend = false);
void enqueueDocuments(int folder_id, const QVector<DocumentInfo> &infos);
private:
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int m_chunkSize;
QMap<int, QQueue<DocumentInfo>> m_docsToScan;
QList<ResultInfo> m_retrieve;
QThread m_dbThread;
QFileSystemWatcher *m_watcher;
EmbeddingLLM *m_embLLM;
Embeddings *m_embeddings;
};
#endif // DATABASE_H