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#include "storage.h"
#include "config.h"
#include <chrono>
#include <iostream>
#include <SQLiteCpp/SQLiteCpp.h>
using namespace std::string_literals;
Storage::Storage(const Config& config):
m_db(config.getDataPath() + "/whiteboard.db3", SQLite::OPEN_READWRITE | SQLite::OPEN_CREATE),
m_maxage(config.getMaxage()),
m_stmt_create(m_db),
m_stmt_getNumberOfDocuments(m_db),
m_stmt_cleanup(m_db),
m_stmt_exists(m_db),
m_stmt_getDocument(m_db),
m_stmt_getRevision(m_db),
m_stmt_getCursorPos(m_db),
m_stmt_getRow(m_db),
m_stmt_setDocument(m_db),
m_stmt_setDocument_new(m_db),
m_stmt_setRevision(m_db),
m_stmt_setCursorPos(m_db),
m_stmt_setRow(m_db)
{
m_stmt_create.init("CREATE TABLE IF NOT EXISTS documents (id VARCHAR(16) PRIMARY KEY, value BLOB, rev INTEGER, cursorpos INTEGER, timestamp BIGINT)");
m_stmt_create.execute();
}
Storage::~Storage()
{
}
uint64_t Storage::getNumberOfDocuments()
{
m_stmt_getNumberOfDocuments.init("SELECT COUNT(*) FROM documents");
if (!m_stmt_getNumberOfDocuments.execute())
throw std::runtime_error("Count not possible");
return m_stmt_getNumberOfDocuments.getColumn<int64_t>(0);
}
void Storage::cleanup()
{
if (m_maxage == 0)
return;
m_stmt_cleanup.init("DELETE FROM documents WHERE timestamp + "s + std::to_string(static_cast<int64_t>(m_maxage)) + " < unixepoch()"s);
m_stmt_cleanup.execute();
}
bool Storage::exists(const std::string& id)
{
m_stmt_exists.init("SELECT id FROM documents WHERE id = ?");
m_stmt_exists.bind(1, id);
return m_stmt_exists.execute();
}
std::string Storage::getDocument(const std::string& id)
{
m_stmt_getDocument.init("SELECT value FROM documents WHERE id = ?");
m_stmt_getDocument.bind(1, id);
if (!m_stmt_getDocument.execute())
throw std::runtime_error("id "s + id + " not found"s);
return m_stmt_getDocument.getColumn<std::string>(0);
}
int Storage::getRevision(const std::string& id)
{
m_stmt_getRevision.init("SELECT rev FROM documents WHERE id = ?");
m_stmt_getRevision.bind(1, id);
if (!m_stmt_getRevision.execute())
throw std::runtime_error("id "s + id + " not found"s);
return m_stmt_getRevision.getColumn<int>(0);
}
int Storage::getCursorPos(const std::string& id)
{
m_stmt_getCursorPos.init("SELECT cursorpos FROM documents WHERE id = ?");
m_stmt_getCursorPos.bind(1, id);
if (!m_stmt_getCursorPos.execute())
throw std::runtime_error("id "s + id + " not found"s);
return m_stmt_getCursorPos.getColumn<int>(0);
}
std::tuple<std::string, int, int> Storage::getRow(const std::string& id)
{
m_stmt_getRow.init("SELECT value, rev, cursorpos FROM documents WHERE id = ?");
m_stmt_getRow.bind(1, id);
if (!m_stmt_getRow.execute())
throw std::runtime_error("id "s + id + " not found"s);
return {m_stmt_getRow.getColumn<std::string>(0), m_stmt_getRow.getColumn<int>(1), m_stmt_getRow.getColumn<int>(2)};
}
void Storage::setDocument(const std::string& id, const std::string& document)
{
m_stmt_setDocument.init("UPDATE documents SET value = ? WHERE id = ?");
m_stmt_setDocument.bind(1, document);
m_stmt_setDocument.bind(2, id);
if (!m_stmt_setDocument.execute()) {
m_stmt_setDocument_new.init("INSERT INTO documents (id, value, rev, cursorpos, timestamp) values (?, ?, ?, ?, unixepoch())");
m_stmt_setDocument_new.bind(1, id);
m_stmt_setDocument_new.bind(2, document);
m_stmt_setDocument_new.bind(3, 0);
m_stmt_setDocument_new.bind(4, 0);
m_stmt_setDocument_new.execute();
}
}
void Storage::setRevision(const std::string& id, int rev)
{
m_stmt_setRevision.init("UPDATE documents SET rev = ? WHERE id = ?");
m_stmt_setRevision.bind(1, rev);
m_stmt_setRevision.bind(2, id);
if (!m_stmt_setRevision.execute())
throw std::runtime_error("Unable to insert row with id "s + id);
}
void Storage::setCursorPos(const std::string& id, int cursorPos)
{
m_stmt_setCursorPos.init("UPDATE documents SET cursorpos = ? WHERE id = ?");
m_stmt_setCursorPos.bind(1, cursorPos);
m_stmt_setCursorPos.bind(2, id);
if (!m_stmt_setCursorPos.execute())
throw std::runtime_error("Unable to insert row with id "s + id);
}
void Storage::setRow(const std::string& id, const std::string& document, int rev, int cursorPos)
{
m_stmt_setRow.init("INSERT OR REPLACE INTO documents (id, value, rev, cursorpos, timestamp) values (?, ?, ?, ?, unixepoch())");
m_stmt_setRow.bind(1, id);
m_stmt_setRow.bind(2, document);
m_stmt_setRow.bind(3, rev);
m_stmt_setRow.bind(4, cursorPos);
if (!m_stmt_setRow.execute())
throw std::runtime_error("Unable to insert row with id "s + id);
}
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