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#pragma once
#include <memory>
#include <string>
#include <tuple>
#include <SQLiteCpp/SQLiteCpp.h>
#include "config.h"
#include "compiledsql.h"
class Storage
{
public:
Storage(const Config& config);
~Storage();
uint64_t getNumberOfDocuments();
bool exists(const std::string& id);
std::string getDocument(const std::string& id);
int getRevision(const std::string& id);
int getCursorPos(const std::string& id);
std::tuple<std::string, int, int> getRow(const std::string& id);
void setDocument(const std::string& id, const std::string& document);
void setRevision(const std::string& id, int rev);
void setCursorPos(const std::string& id, int cursorPos);
void setRow(const std::string& id, const std::string& document, int rev, int cursorPos);
void cleanup();
std::string generate_id();
uint32_t checksum32(const std::string& s);
private:
SQLite::Database m_db;
uint64_t m_maxage;
// shared_ptr to work around initialization in constructor
CompiledSQL m_stmt_create;
CompiledSQL m_stmt_getNumberOfDocuments;
CompiledSQL m_stmt_cleanup;
CompiledSQL m_stmt_vacuum;
CompiledSQL m_stmt_exists;
CompiledSQL m_stmt_getDocument;
CompiledSQL m_stmt_getRevision;
CompiledSQL m_stmt_getCursorPos;
CompiledSQL m_stmt_getRow;
CompiledSQL m_stmt_setDocument;
CompiledSQL m_stmt_setDocument_new;
CompiledSQL m_stmt_setRevision;
CompiledSQL m_stmt_setCursorPos;
CompiledSQL m_stmt_setRow;
};
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