refactor: Remove ConversationsService
This commit is contained in:
Aleksander Grygier
parent
ddf98bdf28
commit
42483f463d
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@ -1,279 +0,0 @@
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import { goto } from '$app/navigation';
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import { toast } from 'svelte-sonner';
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import { DatabaseService } from '$lib/services/database';
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import type {
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DatabaseConversation,
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DatabaseMessage,
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ExportedConversations
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} from '$lib/types/database';
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/**
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* ConversationsService - Database operations for persistent conversation management
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*
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* **Terminology - Chat vs Conversation:**
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* - **Chat**: The active interaction space with the Chat Completions API. Represents the
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* real-time streaming session and UI visualization. Managed by ChatService/Store.
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* - **Conversation**: The persistent database entity storing all messages and metadata.
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* This service handles all database operations for conversations - they survive across
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* sessions, page reloads, and browser restarts. Contains message history, branching
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* structure, timestamps, and conversation metadata.
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*
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* This service handles all conversation-level database operations including CRUD,
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* import/export, and navigation. It provides a stateless abstraction layer between
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* ConversationsStore and DatabaseService.
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*
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* **Architecture & Relationships:**
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* - **ConversationsService** (this class): Stateless database operations layer
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* - Handles conversation CRUD operations via DatabaseService
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* - Manages import/export with JSON serialization
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* - Provides navigation helpers for routing
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* - Does not manage reactive UI state
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*
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* - **ConversationsStore**: Uses this service for all database operations
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* - **DatabaseService**: Low-level IndexedDB operations
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* - **ChatStore**: Indirectly uses conversation data for AI context
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*
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* **Key Responsibilities:**
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* - Conversation CRUD (create, read, update, delete)
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* - Message retrieval for conversations
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* - Import/export with file download/upload
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* - Navigation helpers (goto conversation, new chat)
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*/
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export class ConversationsService {
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/**
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* Creates a new conversation in the database
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* @param name - Optional name for the conversation, defaults to timestamped name
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* @returns The created conversation
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*/
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async createConversation(name?: string): Promise<DatabaseConversation> {
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const conversationName = name || `Chat ${new Date().toLocaleString()}`;
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return await DatabaseService.createConversation(conversationName);
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}
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/**
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* Loads all conversations from the database
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* @returns Array of all conversations
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*/
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async loadAllConversations(): Promise<DatabaseConversation[]> {
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return await DatabaseService.getAllConversations();
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}
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/**
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* Loads a specific conversation by ID
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* @param convId - The conversation ID to load
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* @returns The conversation or null if not found
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*/
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async loadConversation(convId: string): Promise<DatabaseConversation | null> {
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return await DatabaseService.getConversation(convId);
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}
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/**
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* Gets all messages for a conversation
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* @param convId - The conversation ID
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* @returns Array of messages in the conversation
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*/
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async getConversationMessages(convId: string): Promise<DatabaseMessage[]> {
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return await DatabaseService.getConversationMessages(convId);
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}
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/**
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* Updates the name of a conversation
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* @param convId - The conversation ID to update
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* @param name - The new name for the conversation
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*/
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async updateConversationName(convId: string, name: string): Promise<void> {
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await DatabaseService.updateConversation(convId, { name });
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}
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/**
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* Updates the current node (currNode) of a conversation
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* @param convId - The conversation ID to update
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* @param nodeId - The new current node ID
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*/
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async updateCurrentNode(convId: string, nodeId: string): Promise<void> {
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await DatabaseService.updateCurrentNode(convId, nodeId);
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}
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/**
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* Updates the lastModified timestamp of a conversation
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* @param convId - The conversation ID to update
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*/
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async updateTimestamp(convId: string): Promise<void> {
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await DatabaseService.updateConversation(convId, { lastModified: Date.now() });
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}
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/**
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* Deletes a conversation and all its messages
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* @param convId - The conversation ID to delete
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*/
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async deleteConversation(convId: string): Promise<void> {
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await DatabaseService.deleteConversation(convId);
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}
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/**
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* Downloads a conversation as JSON file
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* @param conversation - The conversation to download
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* @param messages - The messages in the conversation
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*/
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downloadConversation(conversation: DatabaseConversation, messages: DatabaseMessage[]): void {
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const conversationData: ExportedConversations = {
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conv: conversation,
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messages
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};
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this.triggerDownload(conversationData);
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}
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/**
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* Exports all conversations with their messages as a JSON file
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* @returns The list of exported conversations
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*/
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async exportAllConversations(): Promise<DatabaseConversation[]> {
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const allConversations = await DatabaseService.getAllConversations();
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if (allConversations.length === 0) {
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throw new Error('No conversations to export');
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}
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const allData: ExportedConversations = await Promise.all(
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allConversations.map(async (conv) => {
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const messages = await DatabaseService.getConversationMessages(conv.id);
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return { conv, messages };
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})
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);
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const blob = new Blob([JSON.stringify(allData, null, 2)], {
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type: 'application/json'
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});
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const url = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url;
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a.download = `all_conversations_${new Date().toISOString().split('T')[0]}.json`;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(url);
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toast.success(`All conversations (${allConversations.length}) prepared for download`);
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return allConversations;
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}
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/**
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* Imports conversations from a JSON file
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* Opens file picker and processes the selected file
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* @returns Promise resolving to the list of imported conversations
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*/
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async importConversations(): Promise<DatabaseConversation[]> {
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return new Promise((resolve, reject) => {
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const input = document.createElement('input');
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input.type = 'file';
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input.accept = '.json';
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input.onchange = async (e) => {
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const file = (e.target as HTMLInputElement)?.files?.[0];
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if (!file) {
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reject(new Error('No file selected'));
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return;
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}
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try {
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const text = await file.text();
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const parsedData = JSON.parse(text);
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let importedData: ExportedConversations;
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if (Array.isArray(parsedData)) {
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importedData = parsedData;
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} else if (
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parsedData &&
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typeof parsedData === 'object' &&
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'conv' in parsedData &&
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'messages' in parsedData
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) {
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// Single conversation object
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importedData = [parsedData];
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} else {
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throw new Error(
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'Invalid file format: expected array of conversations or single conversation object'
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);
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}
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const result = await DatabaseService.importConversations(importedData);
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toast.success(`Imported ${result.imported} conversation(s), skipped ${result.skipped}`);
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// Extract the conversation objects from imported data
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const importedConversations = (
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Array.isArray(importedData) ? importedData : [importedData]
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).map((item) => item.conv);
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resolve(importedConversations);
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} catch (err: unknown) {
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const message = err instanceof Error ? err.message : 'Unknown error';
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console.error('Failed to import conversations:', err);
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toast.error('Import failed', {
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description: message
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});
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reject(new Error(`Import failed: ${message}`));
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}
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};
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input.click();
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});
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}
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/**
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* Navigates to a specific conversation route
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* @param convId - The conversation ID to navigate to
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*/
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async navigateToConversation(convId: string): Promise<void> {
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await goto(`#/chat/${convId}`);
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}
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/**
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* Navigates to new chat route
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*/
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async navigateToNewChat(): Promise<void> {
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await goto(`?new_chat=true#/`);
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}
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/**
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* Triggers file download in browser
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* @param data - Data to download
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* @param filename - Optional filename
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*/
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private triggerDownload(data: ExportedConversations, filename?: string): void {
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const conversation =
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'conv' in data ? data.conv : Array.isArray(data) ? data[0]?.conv : undefined;
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if (!conversation) {
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console.error('Invalid data: missing conversation');
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return;
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}
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const conversationName = conversation.name ? conversation.name.trim() : '';
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const convId = conversation.id || 'unknown';
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const truncatedSuffix = conversationName
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.toLowerCase()
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.replace(/[^a-z0-9]/gi, '_')
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.replace(/_+/g, '_')
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.substring(0, 20);
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const downloadFilename = filename || `conversation_${convId}_${truncatedSuffix}.json`;
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const conversationJson = JSON.stringify(data, null, 2);
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const blob = new Blob([conversationJson], {
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type: 'application/json'
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});
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const url = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url;
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a.download = downloadFilename;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(url);
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}
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}
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export const conversationsService = new ConversationsService();
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@ -1,3 +1,2 @@
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export { chatService } from './chat';
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export { PropsService } from './props';
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export { conversationsService } from './conversations';
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@ -1,8 +1,14 @@
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import { browser } from '$app/environment';
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import { conversationsService } from '$lib/services/conversations';
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import { goto } from '$app/navigation';
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import { toast } from 'svelte-sonner';
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import { DatabaseService } from '$lib/services/database';
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import { config } from '$lib/stores/settings.svelte';
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import { filterByLeafNodeId, findLeafNode } from '$lib/utils/branching';
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import type { DatabaseConversation, DatabaseMessage } from '$lib/types/database';
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import type {
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DatabaseConversation,
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DatabaseMessage,
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ExportedConversations
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} from '$lib/types/database';
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/**
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* ConversationsStore - Persistent conversation data and lifecycle management
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@ -22,13 +28,12 @@ import type { DatabaseConversation, DatabaseMessage } from '$lib/types/database'
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* **Architecture & Relationships:**
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* - **ConversationsStore** (this class): Persistent conversation data management
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* - Manages conversation list and active conversation state
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* - Handles conversation CRUD operations via ConversationsService
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* - Handles conversation CRUD operations via DatabaseService
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* - Maintains active message array for current conversation
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* - Coordinates branching navigation (currNode tracking)
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*
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* - **ChatStore**: Uses conversation data as context for active AI streaming
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* - **ConversationsService**: Database operations for conversation persistence
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* - **DatabaseService**: Low-level storage for conversations and messages
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* - **DatabaseService**: Low-level IndexedDB storage for conversations and messages
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*
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* **Key Features:**
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* - **Conversation Lifecycle**: Create, load, update, delete conversations
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@ -82,7 +87,7 @@ class ConversationsStore {
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* Loads all conversations from the database
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*/
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async loadConversations(): Promise<void> {
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this.conversations = await conversationsService.loadAllConversations();
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this.conversations = await DatabaseService.getAllConversations();
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}
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/**
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@ -91,15 +96,14 @@ class ConversationsStore {
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* @returns The ID of the created conversation
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*/
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async createConversation(name?: string): Promise<string> {
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const conversation = await conversationsService.createConversation(name);
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const conversationName = name || `Chat ${new Date().toLocaleString()}`;
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const conversation = await DatabaseService.createConversation(conversationName);
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this.conversations.unshift(conversation);
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this.activeConversation = conversation;
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this.activeMessages = [];
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// Active processing conversation is now set by ChatStore when streaming starts
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await conversationsService.navigateToConversation(conversation.id);
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await goto(`#/chat/${conversation.id}`);
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return conversation.id;
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}
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@ -111,7 +115,7 @@ class ConversationsStore {
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*/
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async loadConversation(convId: string): Promise<boolean> {
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try {
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const conversation = await conversationsService.loadConversation(convId);
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const conversation = await DatabaseService.getConversation(convId);
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if (!conversation) {
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return false;
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@ -119,18 +123,15 @@ class ConversationsStore {
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this.activeConversation = conversation;
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// Active processing conversation is now set by ChatStore when streaming starts
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if (conversation.currNode) {
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const allMessages = await conversationsService.getConversationMessages(convId);
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const allMessages = await DatabaseService.getConversationMessages(convId);
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this.activeMessages = filterByLeafNodeId(
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allMessages,
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conversation.currNode,
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false
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) as DatabaseMessage[];
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} else {
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// Load all messages for conversations without currNode (backward compatibility)
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this.activeMessages = await conversationsService.getConversationMessages(convId);
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this.activeMessages = await DatabaseService.getConversationMessages(convId);
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}
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return true;
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@ -156,9 +157,7 @@ class ConversationsStore {
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async refreshActiveMessages(): Promise<void> {
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if (!this.activeConversation) return;
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const allMessages = await conversationsService.getConversationMessages(
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this.activeConversation.id
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);
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const allMessages = await DatabaseService.getConversationMessages(this.activeConversation.id);
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if (allMessages.length === 0) {
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this.activeMessages = [];
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@ -182,7 +181,7 @@ class ConversationsStore {
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*/
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async updateConversationName(convId: string, name: string): Promise<void> {
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try {
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await conversationsService.updateConversationName(convId, name);
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await DatabaseService.updateConversation(convId, { name });
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const convIndex = this.conversations.findIndex((c) => c.id === convId);
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@ -224,7 +223,7 @@ class ConversationsStore {
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const currentConfig = config();
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if (currentConfig.askForTitleConfirmation && onConfirmationNeeded) {
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const conversation = await conversationsService.loadConversation(convId);
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const conversation = await DatabaseService.getConversation(convId);
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if (!conversation) return false;
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const shouldUpdate = await onConfirmationNeeded(conversation.name, newTitle);
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@ -246,7 +245,7 @@ class ConversationsStore {
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async updateCurrentNode(nodeId: string): Promise<void> {
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if (!this.activeConversation) return;
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await conversationsService.updateCurrentNode(this.activeConversation.id, nodeId);
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await DatabaseService.updateCurrentNode(this.activeConversation.id, nodeId);
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this.activeConversation.currNode = nodeId;
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}
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@ -272,10 +271,7 @@ class ConversationsStore {
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async navigateToSibling(siblingId: string): Promise<void> {
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if (!this.activeConversation) return;
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// Get the current first user message before navigation
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const allMessages = await conversationsService.getConversationMessages(
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this.activeConversation.id
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);
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const allMessages = await DatabaseService.getConversationMessages(this.activeConversation.id);
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const rootMessage = allMessages.find((m) => m.type === 'root' && m.parent === null);
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const currentFirstUserMessage = this.activeMessages.find(
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(m) => m.role === 'user' && m.parent === rootMessage?.id
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@ -283,7 +279,7 @@ class ConversationsStore {
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const currentLeafNodeId = findLeafNode(allMessages, siblingId);
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await conversationsService.updateCurrentNode(this.activeConversation.id, currentLeafNodeId);
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await DatabaseService.updateCurrentNode(this.activeConversation.id, currentLeafNodeId);
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this.activeConversation.currNode = currentLeafNodeId;
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await this.refreshActiveMessages();
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@ -315,14 +311,14 @@ class ConversationsStore {
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*/
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async deleteConversation(convId: string): Promise<void> {
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try {
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await conversationsService.deleteConversation(convId);
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await DatabaseService.deleteConversation(convId);
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this.conversations = this.conversations.filter((c) => c.id !== convId);
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if (this.activeConversation?.id === convId) {
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this.activeConversation = null;
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this.activeMessages = [];
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await conversationsService.navigateToNewChat();
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await goto(`?new_chat=true#/`);
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}
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} catch (error) {
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console.error('Failed to delete conversation:', error);
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@ -334,17 +330,19 @@ class ConversationsStore {
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* @param convId - The conversation ID to download
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*/
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async downloadConversation(convId: string): Promise<void> {
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if (this.activeConversation?.id === convId) {
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// Use current active conversation data
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conversationsService.downloadConversation(this.activeConversation, this.activeMessages);
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} else {
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// Load the conversation if not currently active
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const conversation = await conversationsService.loadConversation(convId);
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if (!conversation) return;
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let conversation: DatabaseConversation | null;
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let messages: DatabaseMessage[];
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const messages = await conversationsService.getConversationMessages(convId);
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conversationsService.downloadConversation(conversation, messages);
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if (this.activeConversation?.id === convId) {
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conversation = this.activeConversation;
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messages = this.activeMessages;
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} else {
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conversation = await DatabaseService.getConversation(convId);
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if (!conversation) return;
|
||||
messages = await DatabaseService.getConversationMessages(convId);
|
||||
}
|
||||
|
||||
this.triggerDownload({ conv: conversation, messages });
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -352,20 +350,91 @@ class ConversationsStore {
|
|||
* @returns The list of exported conversations
|
||||
*/
|
||||
async exportAllConversations(): Promise<DatabaseConversation[]> {
|
||||
return await conversationsService.exportAllConversations();
|
||||
const allConversations = await DatabaseService.getAllConversations();
|
||||
|
||||
if (allConversations.length === 0) {
|
||||
throw new Error('No conversations to export');
|
||||
}
|
||||
|
||||
const allData = await Promise.all(
|
||||
allConversations.map(async (conv) => {
|
||||
const messages = await DatabaseService.getConversationMessages(conv.id);
|
||||
return { conv, messages };
|
||||
})
|
||||
);
|
||||
|
||||
const blob = new Blob([JSON.stringify(allData, null, 2)], { type: 'application/json' });
|
||||
const url = URL.createObjectURL(blob);
|
||||
const a = document.createElement('a');
|
||||
a.href = url;
|
||||
a.download = `all_conversations_${new Date().toISOString().split('T')[0]}.json`;
|
||||
document.body.appendChild(a);
|
||||
a.click();
|
||||
document.body.removeChild(a);
|
||||
URL.revokeObjectURL(url);
|
||||
|
||||
toast.success(`All conversations (${allConversations.length}) prepared for download`);
|
||||
|
||||
return allConversations;
|
||||
}
|
||||
|
||||
/**
|
||||
* Imports conversations from a JSON file
|
||||
* Opens file picker and processes the selected file
|
||||
* @returns The list of imported conversations
|
||||
*/
|
||||
async importConversations(): Promise<DatabaseConversation[]> {
|
||||
const importedConversations = await conversationsService.importConversations();
|
||||
return new Promise((resolve, reject) => {
|
||||
const input = document.createElement('input');
|
||||
input.type = 'file';
|
||||
input.accept = '.json';
|
||||
|
||||
input.onchange = async (e) => {
|
||||
const file = (e.target as HTMLInputElement)?.files?.[0];
|
||||
|
||||
if (!file) {
|
||||
reject(new Error('No file selected'));
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
const text = await file.text();
|
||||
const parsedData = JSON.parse(text);
|
||||
let importedData: ExportedConversations;
|
||||
|
||||
if (Array.isArray(parsedData)) {
|
||||
importedData = parsedData;
|
||||
} else if (
|
||||
parsedData &&
|
||||
typeof parsedData === 'object' &&
|
||||
'conv' in parsedData &&
|
||||
'messages' in parsedData
|
||||
) {
|
||||
importedData = [parsedData];
|
||||
} else {
|
||||
throw new Error('Invalid file format');
|
||||
}
|
||||
|
||||
const result = await DatabaseService.importConversations(importedData);
|
||||
toast.success(`Imported ${result.imported} conversation(s), skipped ${result.skipped}`);
|
||||
|
||||
// Refresh conversations list after import
|
||||
await this.loadConversations();
|
||||
|
||||
return importedConversations;
|
||||
const importedConversations = (
|
||||
Array.isArray(importedData) ? importedData : [importedData]
|
||||
).map((item) => item.conv);
|
||||
|
||||
resolve(importedConversations);
|
||||
} catch (err: unknown) {
|
||||
const message = err instanceof Error ? err.message : 'Unknown error';
|
||||
console.error('Failed to import conversations:', err);
|
||||
toast.error('Import failed', { description: message });
|
||||
reject(new Error(`Import failed: ${message}`));
|
||||
}
|
||||
};
|
||||
|
||||
input.click();
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -374,7 +443,7 @@ class ConversationsStore {
|
|||
* @returns Array of messages
|
||||
*/
|
||||
async getConversationMessages(convId: string): Promise<DatabaseMessage[]> {
|
||||
return await conversationsService.getConversationMessages(convId);
|
||||
return await DatabaseService.getConversationMessages(convId);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -427,6 +496,37 @@ class ConversationsStore {
|
|||
}
|
||||
return undefined;
|
||||
}
|
||||
|
||||
/**
|
||||
* Triggers file download in browser
|
||||
*/
|
||||
private triggerDownload(data: ExportedConversations, filename?: string): void {
|
||||
const conversation =
|
||||
'conv' in data ? data.conv : Array.isArray(data) ? data[0]?.conv : undefined;
|
||||
|
||||
if (!conversation) {
|
||||
console.error('Invalid data: missing conversation');
|
||||
return;
|
||||
}
|
||||
|
||||
const conversationName = conversation.name?.trim() || '';
|
||||
const truncatedSuffix = conversationName
|
||||
.toLowerCase()
|
||||
.replace(/[^a-z0-9]/gi, '_')
|
||||
.replace(/_+/g, '_')
|
||||
.substring(0, 20);
|
||||
const downloadFilename = filename || `conversation_${conversation.id}_${truncatedSuffix}.json`;
|
||||
|
||||
const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
|
||||
const url = URL.createObjectURL(blob);
|
||||
const a = document.createElement('a');
|
||||
a.href = url;
|
||||
a.download = downloadFilename;
|
||||
document.body.appendChild(a);
|
||||
a.click();
|
||||
document.body.removeChild(a);
|
||||
URL.revokeObjectURL(url);
|
||||
}
|
||||
}
|
||||
|
||||
export const conversationsStore = new ConversationsStore();
|
||||
|
|
|
|||
Loading…
Reference in New Issue