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https://github.com/Palm1r/QodeAssist.git
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refactor: Decoupling chat architecture (#367)
* refactor: Migrate tests to Qt Creator plugin framework and update llmqore transports * refactor: Move conversation history into IDE-free session library * refactor: Extract turn context assembly behind injected ports * build: Add RunQodeAssistTests target for the plugin test suite * refactor: Route the chat through a Session and ChatBackend seam
This commit is contained in:
Petr Mironychev
GitHub
244
sources/session/HistoryProjection.cpp
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244
sources/session/HistoryProjection.cpp
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// Copyright (C) 2026 Petr Mironychev
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// SPDX-License-Identifier: GPL-3.0-or-later
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// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
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#include "session/HistoryProjection.hpp"
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#include <optional>
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#include <utility>
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namespace QodeAssist::Session {
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namespace {
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QString signatureSuffix(const QString &signature)
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{
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return QString("\n[Signature: %1...]").arg(signature.left(40));
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}
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QString redactedThinkingText()
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{
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return QStringLiteral("[Thinking content redacted by safety systems]");
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}
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QString thinkingDisplayText(const ThinkingBlock &block)
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{
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const QString text = block.redacted && block.text.isEmpty() ? redactedThinkingText()
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: block.text;
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return block.signature.isEmpty() ? text : text + signatureSuffix(block.signature);
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}
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QString thinkingTextOf(const MessageRow &row)
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{
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QString text = row.content;
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if (!row.signature.isEmpty()) {
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const QString suffix = signatureSuffix(row.signature);
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if (text.endsWith(suffix))
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text.chop(suffix.size());
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}
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if (row.redacted && text == redactedThinkingText())
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return {};
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return text;
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}
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QString toolDisplayText(const ToolCallBlock &block)
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{
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if (block.name.isEmpty())
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return block.result;
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return block.result.isEmpty() ? block.name : block.name + "\n" + block.result;
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}
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ToolCallBlock toolCallOf(const MessageRow &row)
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{
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ToolCallBlock block{row.id, row.toolName, row.toolArguments, row.toolResult};
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if (block.name.isEmpty() && block.result.isEmpty())
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block.result = row.content;
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return block;
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}
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RowKind textRowKind(MessageRole role)
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{
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switch (role) {
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case MessageRole::System:
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return RowKind::System;
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case MessageRole::User:
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return RowKind::User;
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case MessageRole::Assistant:
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return RowKind::Assistant;
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}
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return RowKind::Assistant;
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}
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} // namespace
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std::optional<MessageRow> projectBlockToRow(const Message &message, const ContentBlock &block)
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{
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if (const auto *text = std::get_if<TextBlock>(&block)) {
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MessageRow row;
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row.kind = textRowKind(message.role);
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row.id = message.id;
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row.content = text->text;
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return row;
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}
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if (const auto *thinking = std::get_if<ThinkingBlock>(&block)) {
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MessageRow row;
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row.kind = RowKind::Thinking;
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row.id = message.id;
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row.content = thinkingDisplayText(*thinking);
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row.redacted = thinking->redacted;
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row.signature = thinking->signature;
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return row;
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}
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if (const auto *tool = std::get_if<ToolCallBlock>(&block)) {
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MessageRow row;
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row.kind = RowKind::Tool;
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row.id = tool->id;
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row.content = toolDisplayText(*tool);
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row.toolName = tool->name;
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row.toolArguments = tool->arguments;
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row.toolResult = tool->result;
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return row;
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}
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if (const auto *edit = std::get_if<FileEditBlock>(&block)) {
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MessageRow row;
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row.kind = RowKind::FileEdit;
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row.id = edit->id;
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row.content = edit->payload;
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return row;
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}
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return std::nullopt;
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}
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QList<MessageRow> projectMessageToRows(const Message &message)
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{
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QList<MessageRow> rows;
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bool usageAssigned = message.usage.isEmpty();
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qsizetype textRowIndex = -1;
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auto appendRow = [&](MessageRow row) {
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if (!usageAssigned && row.id == message.id) {
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row.usage = message.usage;
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usageAssigned = true;
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}
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rows.append(std::move(row));
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return rows.size() - 1;
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};
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auto ensureTextRow = [&] {
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if (textRowIndex < 0) {
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MessageRow row;
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row.kind = textRowKind(message.role);
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row.id = message.id;
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textRowIndex = appendRow(row);
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}
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return textRowIndex;
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};
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for (const ContentBlock &block : message.blocks) {
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if (auto row = projectBlockToRow(message, block)) {
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const qsizetype index = appendRow(std::move(*row));
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if (std::holds_alternative<TextBlock>(block))
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textRowIndex = index;
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} else if (const auto *attachment = std::get_if<AttachmentBlock>(&block)) {
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rows[ensureTextRow()].attachments.append(*attachment);
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} else if (const auto *image = std::get_if<ImageBlock>(&block)) {
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rows[ensureTextRow()].images.append(*image);
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}
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}
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return rows;
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}
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QList<MessageRow> projectToRows(const ConversationHistory &history)
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{
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QList<MessageRow> rows;
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for (const Message &message : history.messages())
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rows.append(projectMessageToRows(message));
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return rows;
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}
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ConversationHistory buildFromRows(const QList<MessageRow> &rows)
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{
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ConversationHistory history;
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std::optional<Message> assistant;
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auto flush = [&] {
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if (assistant) {
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history.append(*assistant);
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assistant.reset();
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}
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};
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auto openAssistant = [&]() -> Message & {
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if (!assistant) {
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Message message;
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message.role = MessageRole::Assistant;
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assistant = message;
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}
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return *assistant;
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};
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for (const MessageRow &row : rows) {
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switch (row.kind) {
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case RowKind::User:
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case RowKind::System: {
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flush();
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Message message;
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message.role = row.kind == RowKind::User ? MessageRole::User : MessageRole::System;
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message.id = row.id;
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message.usage = row.usage;
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message.blocks.append(TextBlock{row.content});
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for (const AttachmentBlock &attachment : row.attachments)
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message.blocks.append(attachment);
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for (const ImageBlock &image : row.images)
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message.blocks.append(image);
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history.append(message);
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break;
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}
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case RowKind::Assistant:
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case RowKind::Thinking: {
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if (assistant && !row.id.isEmpty() && !assistant->id.isEmpty()
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&& assistant->id != row.id) {
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flush();
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}
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Message &message = openAssistant();
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if (message.id.isEmpty())
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message.id = row.id;
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if (row.kind == RowKind::Assistant) {
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message.blocks.append(TextBlock{row.content});
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} else {
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message.blocks.append(
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ThinkingBlock{thinkingTextOf(row), row.signature, row.redacted});
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}
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if (!row.usage.isEmpty())
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message.usage = row.usage;
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break;
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}
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case RowKind::Tool: {
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Message &message = openAssistant();
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message.blocks.append(toolCallOf(row));
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break;
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}
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case RowKind::FileEdit: {
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Message &message = openAssistant();
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message.blocks.append(FileEditBlock{row.id, row.content});
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break;
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}
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}
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}
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flush();
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return history;
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}
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} // namespace QodeAssist::Session
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