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616 lines
18 KiB
C++
616 lines
18 KiB
C++
#include "chatstore.hpp"
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#include "llmclient.hpp"
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#include "message.hpp"
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#include "segment.hpp"
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#include <QCoreApplication>
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#include <QDateTime>
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#include <QDebug>
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#include <QDir>
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#include <QFileInfo>
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#include <QPointer>
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#include <QStandardPaths>
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#include <QSqlDatabase>
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#include <QSqlError>
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#include <QSqlQuery>
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#include <QThreadPool>
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#include <QVector>
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#include <QUuid>
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#include <algorithm>
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namespace ZShell::llm {
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namespace {
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QString segmentTypeName(LlmSegment::Type type) {
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switch (type) {
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case LlmSegment::Type::Reasoning:
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return QStringLiteral("reasoning");
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case LlmSegment::Type::ToolCall:
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return QStringLiteral("tool_call");
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case LlmSegment::Type::Content:
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return QStringLiteral("content");
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}
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return QStringLiteral("reasoning");
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}
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LlmSegment::Type segmentTypeFromName(const QString& name) {
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if (name == QLatin1String("tool_call")) return LlmSegment::Type::ToolCall;
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if (name == QLatin1String("content")) return LlmSegment::Type::Content;
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return LlmSegment::Type::Reasoning;
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}
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QString sqlText(const QString& value) {
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if (value.isNull()) return QStringLiteral("");
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return value;
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}
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struct SegmentRow {
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QString type;
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QString text;
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QString name;
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QString toolCallId;
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QString arguments;
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QString result;
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int status = 0;
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qint64 elapsedMs = 0;
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qint64 timestamp = 0;
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};
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struct GenerationRow {
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qint64 timestamp = 0;
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bool active = false;
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QVector<SegmentRow> segments;
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};
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struct MessageRow {
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bool user = false;
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qint64 timestamp = 0;
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QVector<GenerationRow> generations;
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};
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} // namespace
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ChatStore::ChatStore(QObject* parent)
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: QObject(parent), m_connectionName(QUuid::createUuid().toString()) {
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openDb();
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load();
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}
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ChatStore::~ChatStore() {
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if (m_connectionName.isEmpty()) return;
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QSqlDatabase db = QSqlDatabase::database(m_connectionName, false);
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db.close();
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QSqlDatabase::removeDatabase(m_connectionName);
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}
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QSqlDatabase ChatStore::db() const {
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return QSqlDatabase::database(m_connectionName);
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}
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void ChatStore::openDb() {
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m_dbPath =
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QStandardPaths::writableLocation(QStandardPaths::GenericStateLocation) +
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QStringLiteral("/zshell/chats.sqlite");
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QDir().mkpath(QFileInfo(m_dbPath).absolutePath());
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QSqlDatabase db =
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QSqlDatabase::addDatabase(QStringLiteral("QSQLITE"), m_connectionName);
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db.setDatabaseName(m_dbPath);
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if (!db.open()) {
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qWarning() << "ChatStore: failed to open database" << m_dbPath << ":"
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<< db.lastError().text();
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return;
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}
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{
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QSqlQuery pragma(db);
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pragma.exec(QStringLiteral("PRAGMA foreign_keys = ON"));
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}
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{
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QSqlQuery query(db);
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query.exec(QStringLiteral(
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"CREATE TABLE IF NOT EXISTS sessions (\n"
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" id TEXT PRIMARY KEY,\n"
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" title TEXT NOT NULL DEFAULT '',\n"
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" icon TEXT NOT NULL DEFAULT '',\n"
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" created_at INTEGER NOT NULL,\n"
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" updated_at INTEGER NOT NULL,\n"
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" pinned INTEGER NOT NULL DEFAULT 0\n"
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")"));
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}
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{
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QSqlQuery query(db);
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query.exec(QStringLiteral(
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"CREATE TABLE IF NOT EXISTS messages (\n"
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" id INTEGER PRIMARY KEY AUTOINCREMENT,\n"
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" session_id TEXT NOT NULL REFERENCES sessions (id) "
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"ON DELETE CASCADE,\n"
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" role TEXT NOT NULL,\n"
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" timestamp INTEGER NOT NULL\n"
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")"));
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}
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{
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QSqlQuery query(db);
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query.exec(QStringLiteral(
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"CREATE TABLE IF NOT EXISTS generations (\n"
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" id INTEGER PRIMARY KEY AUTOINCREMENT,\n"
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" message_id INTEGER NOT NULL REFERENCES messages "
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"(id) ON DELETE CASCADE,\n"
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" timestamp INTEGER NOT NULL,\n"
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" is_active INTEGER NOT NULL DEFAULT 1\n"
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")"));
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}
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{
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QSqlQuery query(db);
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query.exec(QStringLiteral(
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"CREATE TABLE IF NOT EXISTS segments (\n"
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" id INTEGER PRIMARY KEY AUTOINCREMENT,\n"
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" generation_id INTEGER NOT NULL REFERENCES generations "
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"(id) ON DELETE CASCADE,\n"
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" type TEXT NOT NULL,\n"
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" text TEXT NOT NULL DEFAULT '',\n"
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" name TEXT NOT NULL DEFAULT '',\n"
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" tool_call_id TEXT NOT NULL DEFAULT '',\n"
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" arguments TEXT NOT NULL DEFAULT '',\n"
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" result TEXT NOT NULL DEFAULT '',\n"
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" status INTEGER NOT NULL DEFAULT 0,\n"
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" elapsed_ms INTEGER NOT NULL DEFAULT 0,\n"
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" timestamp INTEGER NOT NULL\n"
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")"));
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}
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{
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QSqlQuery query(db);
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query.exec(QStringLiteral(
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"CREATE INDEX IF NOT EXISTS idx_messages_session "
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"ON messages (session_id)"));
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query.exec(QStringLiteral(
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"CREATE INDEX IF NOT EXISTS idx_generations_message "
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"ON generations (message_id)"));
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query.exec(QStringLiteral(
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"CREATE INDEX IF NOT EXISTS idx_segments_generation "
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"ON segments (generation_id)"));
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}
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}
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int ChatStore::count() const {
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return static_cast<int>(m_sessions.size());
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}
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QVariantList ChatStore::values() const {
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QVariantList vals;
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vals.reserve(m_sessions.size());
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for (const auto* session : m_sessions)
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vals.append(QVariant::fromValue(session));
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return vals;
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}
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ChatSession* ChatStore::at(int index) const {
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if (index < 0 || index >= m_sessions.size()) return nullptr;
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return m_sessions.at(index);
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}
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ChatSession* ChatStore::insert(int index) {
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const qint64 now = QDateTime::currentMSecsSinceEpoch();
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const QString id = QUuid::createUuid().toString();
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{
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QSqlQuery query(db());
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query.prepare(
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"INSERT INTO sessions (id, title, created_at, updated_at) "
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"VALUES (:id, '', :created_at, :updated_at)");
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query.bindValue(":id", id);
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query.bindValue(":created_at", now);
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query.bindValue(":updated_at", now);
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if (!query.exec())
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qWarning() << "ChatStore: failed to insert session" << id << ":"
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<< query.lastError().text();
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}
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auto* session = new ChatSession(id, this);
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session->setMeta(QString(), now, now, 0);
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const int pos = index >= 0 && index <= m_sessions.size() ? index : 0;
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m_sessions.insert(pos, session);
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Q_EMIT countChanged();
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Q_EMIT valuesChanged();
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return session;
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}
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void ChatStore::remove(int index) {
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removeSession(at(index));
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}
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void ChatStore::remove(ChatSession* chat) {
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removeSession(chat);
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}
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void ChatStore::removeSession(ChatSession* session) {
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if (!session || !m_sessions.contains(session)) return;
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const QList<ChatSession*> before = m_sessions;
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Q_EMIT sessionRemoved(session);
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{
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QSqlQuery query(db());
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query.prepare("DELETE FROM sessions WHERE id = :id");
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query.bindValue(":id", session->id());
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query.exec();
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}
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m_sessions.removeOne(session);
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session->deleteLater();
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notify(before);
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}
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void ChatStore::move(int from, int to) {
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if (from < 0 || from >= m_sessions.size() || to < 0 ||
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to >= m_sessions.size() || from == to)
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return;
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m_sessions.move(from, to);
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Q_EMIT valuesChanged();
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}
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void ChatStore::clear() {
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const QList<ChatSession*> sessions = m_sessions;
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for (ChatSession* session : sessions)
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removeSession(session);
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}
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ChatSession* ChatStore::sessionById(const QString& id) {
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for (auto* session : m_sessions)
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if (session->id() == id) return session;
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return nullptr;
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}
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void ChatStore::setLlmClient(LlmClient* client) {
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m_llmClient = client;
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}
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void ChatStore::persist(ChatSession* session) {
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if (!session || !m_sessions.contains(session)) return;
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if (!session->isLoaded()) {
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m_pendingPersists.insert(session);
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return;
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}
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session->setUpdatedAt(QDateTime::currentMSecsSinceEpoch());
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if (!saveSession(session)) return;
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sortAndNotify();
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}
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void ChatStore::saveMeta(ChatSession* session) {
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if (!session || !m_sessions.contains(session)) return;
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QSqlQuery query(db());
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query.prepare(
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"UPDATE sessions SET title = :title, icon = :icon "
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"WHERE id = :id");
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query.bindValue(":title", sqlText(session->title()));
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query.bindValue(":icon", sqlText(session->icon()));
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query.bindValue(":id", session->id());
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if (!query.exec())
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qWarning() << "ChatStore: failed to save meta for" << session->id()
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<< ":" << query.lastError().text();
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}
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bool ChatStore::saveSession(ChatSession* session) {
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const QString id = session->id();
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QSqlDatabase handle = db();
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if (!handle.transaction()) {
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qWarning() << "ChatStore: failed to begin transaction:"
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<< handle.lastError().text();
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return false;
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}
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bool ok = true;
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{
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QSqlQuery query(handle);
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query.prepare(
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"UPDATE sessions SET title = :title, updated_at = :updated_at "
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"WHERE id = :id");
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query.bindValue(":title", sqlText(session->title()));
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query.bindValue(":updated_at", session->updatedAtMs());
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query.bindValue(":id", session->id());
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ok = query.exec();
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}
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if (ok) {
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QSqlQuery query(handle);
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query.prepare("DELETE FROM messages WHERE session_id = :id");
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query.bindValue(":id", session->id());
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ok = query.exec();
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}
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if (ok) {
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QSqlQuery messageInsert(handle);
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ok = messageInsert.prepare(
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"INSERT INTO messages (session_id, role, timestamp) "
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"VALUES (:id, :role, :timestamp)");
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QSqlQuery generationInsert(handle);
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ok = ok &&
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generationInsert.prepare(
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"INSERT INTO generations (message_id, timestamp, is_active) "
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"VALUES (:mid, :timestamp, :is_active)");
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QSqlQuery segmentInsert(handle);
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ok = ok &&
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segmentInsert.prepare(
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"INSERT INTO segments (generation_id, type, text, name, "
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"tool_call_id, arguments, result, status, elapsed_ms, "
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"timestamp) VALUES (:gid, :type, :text, :name, "
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":tool_call_id, :arguments, :result, :status, :elapsed_ms, "
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":timestamp)");
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const auto* model = session->messagesModel();
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for (int row = model->rowCount() - 1; ok && row >= 0; --row) {
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const auto* message = model->at(row);
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messageInsert.bindValue(":id", session->id());
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messageInsert.bindValue(
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":role",
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message->role() == ChatMessage::Role::User
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? QStringLiteral("user")
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: QStringLiteral("assistant"));
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messageInsert.bindValue(":timestamp", message->timestamp());
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if (!messageInsert.exec()) {
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ok = false;
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qWarning() << "ChatStore: saveSession" << id
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<< "message insert failed:"
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<< messageInsert.lastError().text();
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break;
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}
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const int messageId = messageInsert.lastInsertId().toInt();
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for (int i = 0; ok && i < message->generationCount(); ++i) {
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const auto* generation = message->generation(i);
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generationInsert.bindValue(":mid", messageId);
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generationInsert.bindValue(
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":timestamp", generation->timestamp());
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generationInsert.bindValue(
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":is_active",
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i == message->activeGenerationIndex() ? 1 : 0);
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if (!generationInsert.exec()) {
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ok = false;
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qWarning() << "ChatStore: saveSession" << id
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<< "generation insert failed:"
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<< generationInsert.lastError().text();
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break;
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}
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const int generationId =
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generationInsert.lastInsertId().toInt();
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for (const auto* segment : generation->segments()) {
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segmentInsert.bindValue(":gid", generationId);
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segmentInsert.bindValue(
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":type", segmentTypeName(segment->type()));
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segmentInsert.bindValue(":text", sqlText(segment->text()));
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segmentInsert.bindValue(":name", sqlText(segment->name()));
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segmentInsert.bindValue(
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":tool_call_id", sqlText(segment->toolCallId()));
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segmentInsert.bindValue(
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":arguments", sqlText(segment->arguments()));
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segmentInsert.bindValue(
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":result", sqlText(segment->result()));
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segmentInsert.bindValue(
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":status", static_cast<int>(segment->status()));
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segmentInsert.bindValue(":elapsed_ms", segment->elapsedMs());
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segmentInsert.bindValue(":timestamp", segment->timestamp());
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if (!segmentInsert.exec()) {
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ok = false;
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qWarning() << "ChatStore: saveSession" << id
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<< "segment insert failed:"
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<< segmentInsert.lastError().text();
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break;
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}
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}
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}
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}
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}
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if (!ok || !handle.commit()) {
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qWarning() << "ChatStore: saveSession" << id
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<< "commit failed, rolling back";
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handle.rollback();
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ok = false;
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qWarning() << "ChatStore: failed to save session" << session->id()
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<< ":" << handle.lastError().text();
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}
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return ok;
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}
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void ChatStore::loadMessagesInto(ChatSession* session) {
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if (!session) return;
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const QString sessionId = session->id();
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const QString path = m_dbPath;
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QThreadPool::globalInstance()->start([store = QPointer<ChatStore>(this),
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session =
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QPointer<ChatSession>(session),
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sessionId,
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path]() {
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QList<MessageRow> rows;
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const QString connName = QUuid::createUuid().toString();
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{
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QSqlDatabase db =
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QSqlDatabase::addDatabase(QStringLiteral("QSQLITE"), connName);
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db.setDatabaseName(path);
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if (db.open()) {
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QSqlQuery busy(db);
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busy.exec(QStringLiteral("PRAGMA busy_timeout = 3000"));
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QSqlQuery query(db);
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query.prepare(
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"SELECT id, role, timestamp FROM messages "
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"WHERE session_id = :id ORDER BY rowid DESC");
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query.bindValue(":id", sessionId);
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if (!query.exec()) {
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qWarning() << "ChatStore: failed to load messages for"
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<< sessionId << ":" << query.lastError().text();
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} else {
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while (query.next()) {
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const int messageId = query.value(0).toInt();
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MessageRow message;
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message.user = query.value(1).toString() ==
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QLatin1String("user");
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message.timestamp = query.value(2).toLongLong();
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QSqlQuery generationQuery(db);
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generationQuery.prepare(
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"SELECT id, timestamp, is_active FROM "
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"generations WHERE message_id = :mid "
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"ORDER BY rowid");
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generationQuery.bindValue(":mid", messageId);
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if (generationQuery.exec()) {
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while (generationQuery.next()) {
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GenerationRow generation;
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generation.timestamp =
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generationQuery.value(1).toLongLong();
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generation.active =
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generationQuery.value(2).toInt() != 0;
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QSqlQuery segmentQuery(db);
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segmentQuery.prepare(
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"SELECT type, text, name, tool_call_id, "
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"arguments, result, status, elapsed_ms, "
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"timestamp FROM segments WHERE "
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"generation_id = :gid ORDER BY rowid");
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segmentQuery.bindValue(
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":gid", generationQuery.value(0).toInt());
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if (segmentQuery.exec()) {
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while (segmentQuery.next()) {
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SegmentRow segment;
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segment.type =
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segmentQuery.value(0).toString();
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segment.text =
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segmentQuery.value(1).toString();
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segment.name =
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segmentQuery.value(2).toString();
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segment.toolCallId =
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segmentQuery.value(3).toString();
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segment.arguments =
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segmentQuery.value(4).toString();
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segment.result =
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segmentQuery.value(5).toString();
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segment.status =
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segmentQuery.value(6).toInt();
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segment.elapsedMs =
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segmentQuery.value(7).toLongLong();
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segment.timestamp =
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segmentQuery.value(8).toLongLong();
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generation.segments.append(segment);
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}
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} else {
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qWarning()
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<< "ChatStore: failed to load "
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"segments for generation"
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<< generationQuery.value(0).toInt()
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<< ":"
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<< segmentQuery.lastError().text();
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}
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message.generations.append(generation);
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}
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} else {
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qWarning()
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<< "ChatStore: failed to load generations "
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"for message"
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<< messageId << ":"
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<< generationQuery.lastError().text();
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}
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rows.append(message);
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}
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}
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db.close();
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} else {
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qWarning() << "ChatStore: failed to open database for load:"
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<< db.lastError().text();
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}
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}
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QSqlDatabase::removeDatabase(connName);
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QMetaObject::invokeMethod(
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QCoreApplication::instance(),
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[store, session, rows = std::move(rows)]() mutable {
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ChatStore* st = store;
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ChatSession* s = session;
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|
if (!st || !s) return;
|
|
|
|
auto* model = s->model();
|
|
if (!model) return;
|
|
QList<ChatMessage*> messages;
|
|
for (const MessageRow& row : rows) {
|
|
auto* message = model->createMessage(
|
|
row.user ? ChatMessage::Role::User
|
|
: ChatMessage::Role::Assistant,
|
|
row.timestamp);
|
|
int activeIndex = 0;
|
|
for (int i = 0; i < row.generations.size(); ++i) {
|
|
const GenerationRow& generationRow =
|
|
row.generations.at(i);
|
|
auto* generation =
|
|
message->addGeneration(generationRow.timestamp);
|
|
for (const SegmentRow& segmentRow :
|
|
generationRow.segments) {
|
|
auto* segment = new LlmSegment(
|
|
segmentTypeFromName(segmentRow.type),
|
|
segmentRow.timestamp,
|
|
generation);
|
|
segment->setText(segmentRow.text);
|
|
segment->setName(segmentRow.name);
|
|
segment->setToolCallId(segmentRow.toolCallId);
|
|
segment->appendArguments(segmentRow.arguments);
|
|
segment->setResult(segmentRow.result);
|
|
segment->setStatus(
|
|
static_cast<LlmSegment::Status>(
|
|
segmentRow.status));
|
|
segment->restore(segmentRow.elapsedMs);
|
|
generation->addSegment(segment);
|
|
}
|
|
if (generationRow.active) activeIndex = i;
|
|
}
|
|
message->setActiveGeneration(activeIndex);
|
|
messages.append(message);
|
|
}
|
|
if (model->rowCount() > 0) {
|
|
QList<ChatMessage*> live = messages;
|
|
for (int r = 0; r < model->rowCount(); ++r)
|
|
live.prepend(model->at(r));
|
|
messages = live;
|
|
}
|
|
if (!messages.isEmpty() || model->rowCount() > 0)
|
|
s->adoptMessages(messages);
|
|
|
|
s->markLoaded();
|
|
|
|
if (s->takeClearPending()) {
|
|
s->clear();
|
|
} else if (st->m_pendingPersists.remove(s)) {
|
|
st->persist(s);
|
|
}
|
|
},
|
|
Qt::QueuedConnection);
|
|
});
|
|
}
|
|
|
|
void ChatStore::load() {
|
|
QSqlQuery query(db());
|
|
query.exec(
|
|
"SELECT s.id, s.title, s.icon, s.created_at, s.updated_at, s.pinned, "
|
|
"(SELECT COUNT(*) FROM messages m WHERE m.session_id = s.id) AS cnt "
|
|
"FROM sessions s ORDER BY s.pinned DESC, s.updated_at DESC");
|
|
while (query.next()) {
|
|
auto* session = new ChatSession(query.value(0).toString(), this);
|
|
session->setMeta(
|
|
query.value(1).toString(),
|
|
query.value(3).toLongLong(),
|
|
query.value(4).toLongLong(),
|
|
query.value(6).toInt());
|
|
session->setIcon(query.value(2).toString());
|
|
session->setPinned(query.value(5).toInt() != 0);
|
|
m_sessions.append(session);
|
|
}
|
|
sortAndNotify();
|
|
}
|
|
|
|
void ChatStore::sortAndNotify() {
|
|
const QList<ChatSession*> before = m_sessions;
|
|
std::stable_sort(
|
|
m_sessions.begin(),
|
|
m_sessions.end(),
|
|
[](const ChatSession* a, const ChatSession* b) {
|
|
if (a->pinned() != b->pinned()) return a->pinned() > b->pinned();
|
|
return a->updatedAtMs() > b->updatedAtMs();
|
|
});
|
|
notify(before);
|
|
}
|
|
|
|
void ChatStore::notify(const QList<ChatSession*>& before) {
|
|
if (before.size() != m_sessions.size()) Q_EMIT countChanged();
|
|
bool same = before.size() == m_sessions.size();
|
|
for (int i = 0; same && i < m_sessions.size(); ++i)
|
|
if (before.at(i) != m_sessions.at(i)) same = false;
|
|
if (!same) Q_EMIT valuesChanged();
|
|
}
|
|
|
|
} // namespace ZShell::llm
|