1333 lines
41 KiB
JavaScript
1333 lines
41 KiB
JavaScript
import express from "express";
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import session from "express-session";
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import bcrypt from "bcrypt";
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import fs from "fs";
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import path from "path";
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import bodyParser from "body-parser";
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import Database from "better-sqlite3";
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import FileStoreFactory from "session-file-store";
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import {exec} from "child_process";
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import {performance} from "perf_hooks";
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let last = performance.now();
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setInterval(() => {
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const now = performance.now();
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const drift = now - last - 1000;
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last = now;
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if (drift > 50) {
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console.log("EVENT LOOP LAG", Math.round(drift), "ms", new Date().toISOString());
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}
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}, 1000);
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const modelState = new Map();
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const app = express();
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const PORT = 3000;
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const DB_PATH = "./data/app.db";
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const SESSIONS_DIR = path.resolve("sessions");
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const UNLOAD_AFTER_MS = 30 * 1000;
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let modelsCache = null;
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let modelsCacheAt = 0;
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const MODELS_TTL_MS = 5 * 60 * 1000;
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app.use((req, res, next) => {
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const start = Date.now();
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res.on("finish", () => {
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const ms = Date.now() - start;
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if (ms > 50) console.log("SLOW REQ", ms + "ms", req.method, req.url);
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});
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next();
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});
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if (!fs.existsSync("./data")) {
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fs.mkdirSync("./data", {recursive: true});
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}
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if (!fs.existsSync(SESSIONS_DIR)) {
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fs.mkdirSync(SESSIONS_DIR, {recursive: true});
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}
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function scheduleModelUnload(model) {
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if (!modelState.has(model)) {
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modelState.set(model, {timer: null, activeRequests: 0});
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}
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const state = modelState.get(model);
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if (state.timer) {
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clearTimeout(state.timer);
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}
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state.timer = setTimeout(() => {
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if (state.activeRequests > 0) return;
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console.log(`Unloading model: ${model}`);
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exec(`ollama stop ${model}`, (err) => {
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if (err) {
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console.error(`Failed to unload ${model}:`, err.message);
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} else {
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console.log(`Model unloaded: ${model}`);
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modelState.delete(model);
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}
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});
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}, UNLOAD_AFTER_MS);
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}
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const db = new Database(DB_PATH);
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db.pragma("journal_mode = WAL");
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db.pragma("foreign_keys = ON");
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db.prepare(`
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CREATE TABLE IF NOT EXISTS users
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(
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username
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TEXT
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PRIMARY
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KEY,
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password
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TEXT
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NOT
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NULL
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)
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`).run();
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db.prepare(`
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CREATE TABLE IF NOT EXISTS chats
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(
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id
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INTEGER
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PRIMARY
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KEY
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AUTOINCREMENT,
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username
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TEXT
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NOT
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NULL,
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role
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TEXT
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NOT
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NULL,
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content
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TEXT
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NOT
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NULL,
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created_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP
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)
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`).run();
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db.prepare(`
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CREATE TABLE IF NOT EXISTS chat_sessions
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(
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id
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INTEGER
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PRIMARY
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KEY
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AUTOINCREMENT,
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username
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TEXT
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NOT
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NULL,
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title
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TEXT
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NOT
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NULL,
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created_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP,
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updated_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP
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)
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`).run();
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db.prepare(`
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CREATE TABLE IF NOT EXISTS chat_messages
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(
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id
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INTEGER
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PRIMARY
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KEY
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AUTOINCREMENT,
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chat_id
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INTEGER
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NOT
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NULL,
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role
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TEXT
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NOT
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NULL,
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content
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TEXT
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NOT
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NULL,
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created_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP,
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FOREIGN
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KEY
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(
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chat_id
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) REFERENCES chat_sessions
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(
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id
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) ON DELETE CASCADE
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)
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`).run();
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db.prepare(`
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CREATE TABLE IF NOT EXISTS personas
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(
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id
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INTEGER
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PRIMARY
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KEY
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AUTOINCREMENT,
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username
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TEXT
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NOT
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NULL,
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name
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TEXT
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NOT
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NULL,
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pronouns
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TEXT,
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appearance
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TEXT,
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background
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TEXT,
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details
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TEXT,
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example_dialogues
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TEXT,
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persona_type
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TEXT
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DEFAULT
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'assistant',
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source_market_id
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INTEGER,
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source_creator_username
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TEXT,
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created_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP,
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updated_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP
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)
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`).run();
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db.prepare(`
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CREATE TABLE IF NOT EXISTS user_settings
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(
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username
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TEXT
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PRIMARY
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KEY,
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active_persona_id
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INTEGER,
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active_user_persona_id
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INTEGER,
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FOREIGN
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KEY
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(
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active_persona_id
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) REFERENCES personas
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(
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id
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) ON DELETE SET NULL,
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FOREIGN
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KEY
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(
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active_user_persona_id
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) REFERENCES personas
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(
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id
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) ON DELETE SET NULL
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)
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`).run();
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db.prepare(`
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CREATE TABLE IF NOT EXISTS persona_market
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(
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id
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INTEGER
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PRIMARY
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KEY
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AUTOINCREMENT,
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persona_id
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INTEGER,
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creator_username
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TEXT
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NOT
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NULL,
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name
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TEXT
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NOT
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NULL,
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pronouns
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TEXT,
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appearance
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TEXT,
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background
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TEXT,
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details
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TEXT,
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example_dialogues
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TEXT,
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persona_type
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TEXT
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DEFAULT
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'assistant',
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usage_count
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INTEGER
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DEFAULT
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0,
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created_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP,
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updated_at
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DATETIME
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DEFAULT
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CURRENT_TIMESTAMP,
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UNIQUE
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(
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persona_id,
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creator_username
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)
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)
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`).run();
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const insertUserStmt = db.prepare("INSERT INTO users (username, password) VALUES (?, ?)");
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const getUserStmt = db.prepare("SELECT username, password FROM users WHERE username = ?");
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const updateUsernameStmt = db.prepare("UPDATE users SET username = ? WHERE username = ?");
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const updatePasswordStmt = db.prepare("UPDATE users SET password = ? WHERE username = ?");
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const getLegacyChatsStmt = db.prepare(`
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SELECT role, content
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FROM chats
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WHERE username = ?
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ORDER BY datetime(created_at)
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`);
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const insertChatSessionStmt = db.prepare(
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"INSERT INTO chat_sessions (username, title) VALUES (?, ?)"
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);
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const listChatSessionsStmt = db.prepare(`
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SELECT id, title, created_at, updated_at
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FROM chat_sessions
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WHERE username = ?
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ORDER BY datetime(updated_at) DESC
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`);
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const countChatSessionsStmt = db.prepare(`
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SELECT COUNT(*) as count
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FROM chat_sessions
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WHERE username = ?
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`);
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const getChatSessionStmt = db.prepare(
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"SELECT id, title FROM chat_sessions WHERE id = ? AND username = ?"
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);
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const updateChatSessionTitleStmt = db.prepare(
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"UPDATE chat_sessions SET title = ?, updated_at = CURRENT_TIMESTAMP WHERE id = ? AND username = ?"
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);
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const touchChatSessionStmt = db.prepare(
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"UPDATE chat_sessions SET updated_at = CURRENT_TIMESTAMP WHERE id = ? AND username = ?"
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);
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const deleteChatSessionStmt = db.prepare(
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"DELETE FROM chat_sessions WHERE id = ? AND username = ?"
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);
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const insertChatMessageStmt = db.prepare(
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"INSERT INTO chat_messages (chat_id, role, content) VALUES (?, ?, ?)"
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);
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const getChatMessagesStmt = db.prepare(`
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SELECT role, content
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FROM chat_messages
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WHERE chat_id = ?
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ORDER BY datetime(created_at)
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`
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)
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;
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const getRecentChatMessagesStmt = db.prepare(`
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SELECT role, content
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FROM chat_messages
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WHERE chat_id = ?
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ORDER BY datetime(created_at) DESC
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LIMIT 20
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`
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)
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;
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const deleteChatMessagesStmt = db.prepare(
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"DELETE FROM chat_messages WHERE chat_id = ?"
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);
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const listPersonasByTypeStmt = db.prepare(`
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SELECT id,
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name,
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pronouns,
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appearance,
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background,
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details,
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example_dialogues,
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persona_type,
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source_market_id,
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source_creator_username,
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created_at,
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updated_at
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FROM personas
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WHERE username = ?
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AND persona_type = ?
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ORDER BY datetime(updated_at) DESC
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`);
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const getPersonaStmt = db.prepare(`
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SELECT id, name, pronouns, appearance, background, details, example_dialogues, persona_type
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FROM personas
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WHERE id = ?
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AND username = ?
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`);
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const getPersonaForPublishStmt = db.prepare(`
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SELECT id,
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name,
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pronouns,
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appearance,
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background,
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details,
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example_dialogues,
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persona_type,
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source_market_id,
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source_creator_username
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FROM personas
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WHERE id = ?
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AND username = ?
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`);
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const insertPersonaStmt = db.prepare(
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"INSERT INTO personas (username, name, pronouns, appearance, background, details, example_dialogues, persona_type) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"
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);
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const insertMarketPersonaStmt = db.prepare(
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"INSERT INTO personas (username, name, pronouns, appearance, background, details, example_dialogues, persona_type, source_market_id, source_creator_username) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"
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);
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const getPersonaBySourceMarketStmt = db.prepare(`
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SELECT id
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FROM personas
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WHERE username = ?
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AND source_market_id = ?
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`);
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const updatePersonaStmt = db.prepare(`
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UPDATE personas
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SET name = ?,
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pronouns = ?,
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appearance = ?,
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background = ?,
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details = ?,
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example_dialogues = ?,
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updated_at = CURRENT_TIMESTAMP
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WHERE id = ?
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AND username = ?
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`);
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const deletePersonaStmt = db.prepare(
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"DELETE FROM personas WHERE id = ? AND username = ?"
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);
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const getActivePersonaIdStmt = db.prepare(
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"SELECT active_persona_id, active_user_persona_id FROM user_settings WHERE username = ?"
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);
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const setActivePersonaStmt = db.prepare(`
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INSERT INTO user_settings (username, active_persona_id)
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VALUES (?, ?)
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ON CONFLICT(username) DO UPDATE SET active_persona_id = excluded.active_persona_id
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`);
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const setActiveUserPersonaStmt = db.prepare(`
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INSERT INTO user_settings (username, active_user_persona_id)
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VALUES (?, ?)
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ON CONFLICT(username) DO UPDATE SET active_user_persona_id = excluded.active_user_persona_id
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`);
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const getActivePersonaStmt = db.prepare(`
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SELECT p.id, p.name, p.pronouns, p.appearance, p.background, p.details, p.example_dialogues
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FROM user_settings us
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JOIN personas p ON p.id = us.active_persona_id
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WHERE us.username = ?
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`);
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const getActiveUserPersonaStmt = db.prepare(`
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SELECT p.id, p.name, p.pronouns, p.appearance, p.background, p.details, p.example_dialogues
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FROM user_settings us
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JOIN personas p ON p.id = us.active_user_persona_id
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WHERE us.username = ?
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`);
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const listMarketPersonasStmt = db.prepare(`
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SELECT id,
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persona_id,
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creator_username,
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name,
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pronouns,
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appearance,
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background,
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details,
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example_dialogues,
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persona_type,
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usage_count,
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created_at,
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updated_at
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FROM persona_market
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ORDER BY datetime(updated_at) DESC
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`);
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const getMarketPersonaStmt = db.prepare(`
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SELECT id,
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|
persona_id,
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creator_username,
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name,
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|
pronouns,
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|
appearance,
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|
background,
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details,
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|
example_dialogues,
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|
persona_type,
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usage_count
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FROM persona_market
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WHERE id = ?
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`);
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const getMarketPersonaByPersonaIdStmt = db.prepare(`
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SELECT id,
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|
persona_id,
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|
creator_username,
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|
name,
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|
pronouns,
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|
appearance,
|
|
background,
|
|
details,
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|
example_dialogues,
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|
persona_type
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|
FROM persona_market
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WHERE persona_id = ?
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AND creator_username = ?
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`);
|
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const upsertMarketPersonaStmt = db.prepare(`
|
|
INSERT INTO persona_market (persona_id, creator_username, name, pronouns, appearance, background, details,
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example_dialogues, persona_type)
|
|
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
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ON CONFLICT(persona_id, creator_username) DO UPDATE SET name = excluded.name,
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pronouns = excluded.pronouns,
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|
appearance = excluded.appearance,
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|
background = excluded.background,
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details = excluded.details,
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|
example_dialogues = excluded.example_dialogues,
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|
persona_type = excluded.persona_type,
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updated_at = CURRENT_TIMESTAMP
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`);
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|
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const listPublishedPersonaIdsStmt = db.prepare(`
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SELECT persona_id
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|
FROM persona_market
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WHERE creator_username = ?
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`);
|
|
|
|
const getChatMessageCountForUserStmt = db.prepare(`
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|
SELECT COUNT(*) as count
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|
FROM chat_messages cm
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|
JOIN chat_sessions cs ON cs.id = cm.chat_id
|
|
WHERE cs.username = ?
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`);
|
|
|
|
const getPersonaCountForUserStmt = db.prepare(`
|
|
SELECT COUNT(*) as count
|
|
FROM personas
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|
WHERE username = ?
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|
`);
|
|
|
|
const getPublishedPersonaCountForUserStmt = db.prepare(`
|
|
SELECT COUNT(*) as count
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|
FROM persona_market
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|
WHERE creator_username = ?
|
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`);
|
|
|
|
const updateLegacyChatsUsernameStmt = db.prepare(`
|
|
UPDATE chats
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|
SET username = ?
|
|
WHERE username = ?
|
|
`);
|
|
|
|
const updateChatSessionsUsernameStmt = db.prepare(`
|
|
UPDATE chat_sessions
|
|
SET username = ?
|
|
WHERE username = ?
|
|
`);
|
|
|
|
const updatePersonasUsernameStmt = db.prepare(`
|
|
UPDATE personas
|
|
SET username = ?
|
|
WHERE username = ?
|
|
`);
|
|
|
|
const updatePersonasSourceCreatorStmt = db.prepare(`
|
|
UPDATE personas
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|
SET source_creator_username = ?
|
|
WHERE source_creator_username = ?
|
|
`);
|
|
|
|
const updateUserSettingsUsernameStmt = db.prepare(`
|
|
UPDATE user_settings
|
|
SET username = ?
|
|
WHERE username = ?
|
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`);
|
|
|
|
const updatePersonaMarketCreatorStmt = db.prepare(`
|
|
UPDATE persona_market
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|
SET creator_username = ?
|
|
WHERE creator_username = ?
|
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`);
|
|
|
|
const renameUserTransaction = db.transaction((currentUsername, nextUsername) => {
|
|
updateUsernameStmt.run(nextUsername, currentUsername);
|
|
updateLegacyChatsUsernameStmt.run(nextUsername, currentUsername);
|
|
updateChatSessionsUsernameStmt.run(nextUsername, currentUsername);
|
|
updatePersonasUsernameStmt.run(nextUsername, currentUsername);
|
|
updatePersonasSourceCreatorStmt.run(nextUsername, currentUsername);
|
|
updateUserSettingsUsernameStmt.run(nextUsername, currentUsername);
|
|
updatePersonaMarketCreatorStmt.run(nextUsername, currentUsername);
|
|
});
|
|
|
|
const deleteMarketPersonaByPersonaIdStmt = db.prepare(`
|
|
DELETE FROM persona_market
|
|
WHERE persona_id = ?
|
|
AND creator_username = ?
|
|
`);
|
|
|
|
const incrementMarketUsageCountStmt = db.prepare(`
|
|
UPDATE persona_market
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|
SET usage_count = usage_count + 1
|
|
WHERE id = ?
|
|
`);
|
|
|
|
const migrationNeeded = db.prepare(
|
|
"SELECT COUNT(*) as count FROM chat_messages"
|
|
).get();
|
|
const legacyChatsExist = db.prepare(
|
|
"SELECT name FROM sqlite_master WHERE type = 'table' AND name = 'chats'"
|
|
).get();
|
|
if (legacyChatsExist && migrationNeeded.count === 0) {
|
|
const legacyUsers = db.prepare(
|
|
"SELECT DISTINCT username FROM chats"
|
|
).all();
|
|
legacyUsers.forEach(({username}) => {
|
|
const sessionId = insertChatSessionStmt.run(username, "Imported chat").lastInsertRowid;
|
|
const legacyMessages = getLegacyChatsStmt.all(username);
|
|
legacyMessages.forEach(msg => {
|
|
insertChatMessageStmt.run(sessionId, msg.role, msg.content);
|
|
});
|
|
});
|
|
}
|
|
|
|
const personaColumns = db.prepare("PRAGMA table_info(personas)").all();
|
|
const hasCustomFields = personaColumns.some(column => column.name === "custom_fields");
|
|
if (!hasCustomFields) {
|
|
db.prepare("ALTER TABLE personas ADD COLUMN custom_fields TEXT").run();
|
|
}
|
|
const hasPersonaType = personaColumns.some(column => column.name === "persona_type");
|
|
if (!hasPersonaType) {
|
|
db.prepare("ALTER TABLE personas ADD COLUMN persona_type TEXT DEFAULT 'assistant'").run();
|
|
}
|
|
const hasSourceMarketId = personaColumns.some(column => column.name === "source_market_id");
|
|
if (!hasSourceMarketId) {
|
|
db.prepare("ALTER TABLE personas ADD COLUMN source_market_id INTEGER").run();
|
|
}
|
|
const hasSourceCreatorUsername = personaColumns.some(column => column.name === "source_creator_username");
|
|
if (!hasSourceCreatorUsername) {
|
|
db.prepare("ALTER TABLE personas ADD COLUMN source_creator_username TEXT").run();
|
|
}
|
|
const hasExampleDialogues = personaColumns.some(column => column.name === "example_dialogues");
|
|
if (!hasExampleDialogues) {
|
|
db.prepare("ALTER TABLE personas ADD COLUMN example_dialogues TEXT").run();
|
|
}
|
|
|
|
const userSettingsColumns = db.prepare("PRAGMA table_info(user_settings)").all();
|
|
const hasActiveUserPersona = userSettingsColumns.some(column => column.name === "active_user_persona_id");
|
|
if (!hasActiveUserPersona) {
|
|
db.prepare("ALTER TABLE user_settings ADD COLUMN active_user_persona_id INTEGER").run();
|
|
}
|
|
|
|
const marketColumns = db.prepare("PRAGMA table_info(persona_market)").all();
|
|
const hasPersonaIdColumn = marketColumns.some(column => column.name === "persona_id");
|
|
if (!hasPersonaIdColumn) {
|
|
db.prepare("ALTER TABLE persona_market ADD COLUMN persona_id INTEGER").run();
|
|
}
|
|
const hasUsageCount = marketColumns.some(column => column.name === "usage_count");
|
|
if (!hasUsageCount) {
|
|
db.prepare("ALTER TABLE persona_market ADD COLUMN usage_count INTEGER DEFAULT 0").run();
|
|
}
|
|
const hasMarketExampleDialogues = marketColumns.some(column => column.name === "example_dialogues");
|
|
if (!hasMarketExampleDialogues) {
|
|
db.prepare("ALTER TABLE persona_market ADD COLUMN example_dialogues TEXT").run();
|
|
}
|
|
db.prepare("UPDATE persona_market SET usage_count = 0 WHERE usage_count IS NULL").run();
|
|
|
|
const FileStore = FileStoreFactory(session);
|
|
app.use(bodyParser.json());
|
|
app.use(express.static("public"));
|
|
app.use(
|
|
session({
|
|
store: new FileStore({
|
|
path: SESSIONS_DIR,
|
|
reapInterval: 3600
|
|
}),
|
|
secret: "-secret-key-here-",
|
|
resave: false,
|
|
saveUninitialized: false,
|
|
cookie: {
|
|
secure: false,
|
|
httpOnly: true,
|
|
maxAge: 7 * 24 * 60 * 60 * 1000
|
|
}
|
|
})
|
|
);
|
|
|
|
app.post("/register", async (req, res) => {
|
|
const {username, password} = req.body;
|
|
const existingUser = getUserStmt.get(username);
|
|
|
|
if (existingUser) return res.status(400).json({error: "User already exists"});
|
|
|
|
const hashed = await bcrypt.hash(password, 10);
|
|
insertUserStmt.run(username, hashed);
|
|
res.json({message: "Registration successful"});
|
|
});
|
|
|
|
app.post("/login", async (req, res) => {
|
|
const {username, password} = req.body;
|
|
const user = getUserStmt.get(username);
|
|
if (!user) return res.status(400).json({error: "User not found"});
|
|
const valid = await bcrypt.compare(password, user.password);
|
|
if (!valid) return res.status(403).json({error: "Invalid password"});
|
|
req.session.user = username;
|
|
res.json({message: "Login successful"});
|
|
});
|
|
|
|
app.post("/logout", (req, res) => {
|
|
req.session.destroy(() => res.json({message: "Logged out"}));
|
|
});
|
|
|
|
const requireLogin = (req, res, next) => {
|
|
if (!req.session.user) return res.status(403).json({error: "Not logged in"});
|
|
next();
|
|
};
|
|
|
|
app.get("/settings/profile", requireLogin, (req, res) => {
|
|
const user = getUserStmt.get(req.session.user);
|
|
if (!user) return res.status(404).json({error: "User not found"});
|
|
res.json({username: user.username});
|
|
});
|
|
|
|
app.put("/settings/username", requireLogin, async (req, res) => {
|
|
const currentUsername = req.session.user;
|
|
const nextUsername = (req.body?.username || "").trim();
|
|
const password = req.body?.password || "";
|
|
|
|
if (!nextUsername) {
|
|
return res.status(400).json({error: "New username is required"});
|
|
}
|
|
if (nextUsername.length < 3) {
|
|
return res.status(400).json({error: "Username must be at least 3 characters"});
|
|
}
|
|
if (nextUsername === currentUsername) {
|
|
return res.status(400).json({error: "That is already your username"});
|
|
}
|
|
|
|
const currentUser = getUserStmt.get(currentUsername);
|
|
if (!currentUser) {
|
|
return res.status(404).json({error: "User not found"});
|
|
}
|
|
const valid = await bcrypt.compare(password, currentUser.password);
|
|
if (!valid) {
|
|
return res.status(403).json({error: "Current password is incorrect"});
|
|
}
|
|
|
|
if (getUserStmt.get(nextUsername)) {
|
|
return res.status(400).json({error: "Username already exists"});
|
|
}
|
|
|
|
renameUserTransaction(currentUsername, nextUsername);
|
|
req.session.user = nextUsername;
|
|
res.json({username: nextUsername});
|
|
});
|
|
|
|
app.put("/settings/password", requireLogin, async (req, res) => {
|
|
const username = req.session.user;
|
|
const currentPassword = req.body?.currentPassword || "";
|
|
const nextPassword = req.body?.newPassword || "";
|
|
|
|
if (!currentPassword || !nextPassword) {
|
|
return res.status(400).json({error: "Current and new password are required"});
|
|
}
|
|
if (nextPassword.length < 6) {
|
|
return res.status(400).json({error: "New password must be at least 6 characters"});
|
|
}
|
|
|
|
const user = getUserStmt.get(username);
|
|
if (!user) {
|
|
return res.status(404).json({error: "User not found"});
|
|
}
|
|
const valid = await bcrypt.compare(currentPassword, user.password);
|
|
if (!valid) {
|
|
return res.status(403).json({error: "Current password is incorrect"});
|
|
}
|
|
|
|
const hashed = await bcrypt.hash(nextPassword, 10);
|
|
updatePasswordStmt.run(hashed, username);
|
|
res.json({message: "Password updated"});
|
|
});
|
|
|
|
const normalizePersonaField = (value) => {
|
|
const trimmed = (value || "").trim();
|
|
return trimmed ? trimmed : null;
|
|
};
|
|
|
|
const PERSONA_FIELD_LIMITS = {
|
|
name: 200,
|
|
pronouns: 40,
|
|
appearance: 9000,
|
|
background: 9000,
|
|
details: 9000,
|
|
exampleDialogues: 12000
|
|
};
|
|
|
|
const blockedPersonaPatterns = [
|
|
/\b(child|children|kid|kids|minor|underage|under-aged|teenager|young girl|young boy|loli|shota)\b/i,
|
|
/\b(nazi|hitler|third reich|kkk|ku klux klan|white power|nigger|nigga)\b/i,
|
|
/\b(rape|rapist|sexual assault|molest|molestation|incest|bestiality|zoophilia|necrophilia)\b/i,
|
|
/\b(self-harm|self harm|suicide fetish)\b/i
|
|
];
|
|
|
|
const validatePersonaPayload = (payload) => {
|
|
const sanitized = {
|
|
name: (payload?.name || "").trim(),
|
|
pronouns: normalizePersonaField(payload?.pronouns),
|
|
appearance: normalizePersonaField(payload?.appearance),
|
|
background: normalizePersonaField(payload?.background),
|
|
details: normalizePersonaField(payload?.details),
|
|
exampleDialogues: payload?.personaType === "assistant" ? normalizePersonaField(payload?.exampleDialogues) : null
|
|
};
|
|
|
|
if (!sanitized.name) {
|
|
return {error: "Name is required"};
|
|
}
|
|
|
|
for (const [key, limit] of Object.entries(PERSONA_FIELD_LIMITS)) {
|
|
const value = sanitized[key];
|
|
if (value && value.length > limit) {
|
|
return {error: `${key.charAt(0).toUpperCase() + key.slice(1)} is too long`};
|
|
}
|
|
}
|
|
|
|
const combinedText = [
|
|
sanitized.name,
|
|
sanitized.pronouns,
|
|
sanitized.appearance,
|
|
sanitized.background,
|
|
sanitized.details,
|
|
sanitized.exampleDialogues
|
|
].filter(Boolean).join("\n");
|
|
|
|
if (blockedPersonaPatterns.some((pattern) => pattern.test(combinedText))) {
|
|
return {error: "This persona contains disallowed content. Remove sexual content involving minors, extreme sexual violence, or hateful/extremist material."};
|
|
}
|
|
|
|
return {sanitized};
|
|
};
|
|
|
|
const buildPersonaPrompt = (persona) => {
|
|
const lines = [
|
|
"SYSTEM ROLE:",
|
|
"You are the AI assistant in this conversation.",
|
|
"You must speak, think, and respond AS the persona described below.",
|
|
"Do NOT describe or roleplay as the user.",
|
|
"Do NOT switch roles or perspectives.",
|
|
"Always respond in-character, using first-person language where appropriate.",
|
|
"",
|
|
"ASSISTANT PERSONA:"
|
|
];
|
|
if (persona.name) lines.push(`Name: ${persona.name}`);
|
|
if (persona.pronouns) lines.push(`Pronouns: ${persona.pronouns}`);
|
|
if (persona.appearance) lines.push(`Appearance: ${persona.appearance}`);
|
|
if (persona.background) lines.push(`Background: ${persona.background}`);
|
|
if (persona.details) lines.push(`Additional Traits: ${persona.details}`);
|
|
if (persona.example_dialogues) {
|
|
lines.push("", "EXAMPLE DIALOGUES:");
|
|
lines.push("Use these examples to mirror tone, cadence, and phrasing without rigidly repeating them.");
|
|
lines.push(persona.example_dialogues);
|
|
}
|
|
return lines.join("\n");
|
|
};
|
|
|
|
const buildUserPersonaPrompt = (persona) => {
|
|
const lines = [
|
|
"USER CONTEXT:",
|
|
"The human user is roleplaying as the persona below.",
|
|
"This information is for context only.",
|
|
"Do NOT speak as this character.",
|
|
"Do NOT narrate their thoughts unless they explicitly do so.",
|
|
"Respond TO this persona, not AS them.",
|
|
"",
|
|
"USER PERSONA:"
|
|
];
|
|
if (persona.name) lines.push(`Name: ${persona.name}`);
|
|
if (persona.pronouns) lines.push(`Pronouns: ${persona.pronouns}`);
|
|
if (persona.appearance) lines.push(`Appearance: ${persona.appearance}`);
|
|
if (persona.background) lines.push(`Background: ${persona.background}`);
|
|
if (persona.details) lines.push(`Additional Traits: ${persona.details}`);
|
|
return lines.join("\n");
|
|
};
|
|
|
|
app.get("/models", async (req, res) => {
|
|
try {
|
|
if (modelsCache && (Date.now() - modelsCacheAt) < MODELS_TTL_MS) {
|
|
return res.json(modelsCache);
|
|
}
|
|
const controller = new AbortController();
|
|
const t = setTimeout(() => controller.abort(), 4000);
|
|
const response = await fetch("https://ai.krishd.ch/api/tags", {signal: controller.signal});
|
|
clearTimeout(t);
|
|
if (!response.ok) return res.status(500).json({error: "Failed to load models"});
|
|
modelsCache = await response.json();
|
|
modelsCacheAt = Date.now();
|
|
res.json(modelsCache);
|
|
} catch (e) {
|
|
res.status(500).json({error: "Failed to load models"});
|
|
}
|
|
});
|
|
|
|
app.get("/chats", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chats = listChatSessionsStmt.all(user);
|
|
res.json({chats});
|
|
});
|
|
|
|
app.post("/chats", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
|
|
const sessionCount = countChatSessionsStmt.get(user).count;
|
|
if (sessionCount >= 10) {
|
|
return res.status(400).json({error: "Maximum of 10 chats reached. Please delete an old chat to create a new one."});
|
|
}
|
|
|
|
const title = (req.body?.title || "New chat").trim() || "New chat";
|
|
const chatId = insertChatSessionStmt.run(user, title).lastInsertRowid;
|
|
res.json({chat: {id: chatId, title}});
|
|
});
|
|
|
|
app.put("/chats/:id", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chatId = Number(req.params.id);
|
|
const title = (req.body?.title || "").trim();
|
|
if (!title) {
|
|
return res.status(400).json({error: "Title is required"});
|
|
}
|
|
const result = updateChatSessionTitleStmt.run(title, chatId, user);
|
|
if (result.changes === 0) {
|
|
return res.status(404).json({error: "Chat not found"});
|
|
}
|
|
res.json({chat: {id: chatId, title}});
|
|
});
|
|
|
|
app.delete("/chats/:id", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chatId = Number(req.params.id);
|
|
const result = deleteChatSessionStmt.run(chatId, user);
|
|
if (result.changes === 0) {
|
|
return res.status(404).json({error: "Chat not found"});
|
|
}
|
|
res.json({message: "Chat deleted"});
|
|
});
|
|
|
|
app.get("/chats/:id/messages", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chatId = Number(req.params.id);
|
|
const session = getChatSessionStmt.get(chatId, user);
|
|
if (!session) {
|
|
return res.status(404).json({error: "Chat not found"});
|
|
}
|
|
const messages = getChatMessagesStmt.all(chatId);
|
|
res.json({messages});
|
|
});
|
|
|
|
app.post("/chats/:id/clear", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chatId = Number(req.params.id);
|
|
const session = getChatSessionStmt.get(chatId, user);
|
|
if (!session) {
|
|
return res.status(404).json({error: "Chat not found"});
|
|
}
|
|
deleteChatMessagesStmt.run(chatId);
|
|
touchChatSessionStmt.run(chatId, user);
|
|
res.json({message: "Chat cleared"});
|
|
});
|
|
|
|
app.get("/personas", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const assistantPersonas = listPersonasByTypeStmt.all(user, "assistant");
|
|
const userPersonas = listPersonasByTypeStmt.all(user, "user");
|
|
const activePersonas = getActivePersonaIdStmt.get(user) || {};
|
|
const publishedPersonaIds = listPublishedPersonaIdsStmt.all(user).map(row => row.persona_id);
|
|
res.json({
|
|
assistantPersonas,
|
|
userPersonas,
|
|
activePersonaId: activePersonas.active_persona_id ?? null,
|
|
activeUserPersonaId: activePersonas.active_user_persona_id ?? null,
|
|
publishedPersonaIds
|
|
});
|
|
});
|
|
|
|
app.post("/personas", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaType = (req.body?.personaType || "assistant").trim();
|
|
if (!["assistant", "user"].includes(personaType)) {
|
|
return res.status(400).json({error: "Invalid persona type"});
|
|
}
|
|
const validation = validatePersonaPayload(req.body);
|
|
if (validation.error) {
|
|
return res.status(400).json({error: validation.error});
|
|
}
|
|
const {name, pronouns, appearance, background, details, exampleDialogues} = validation.sanitized;
|
|
const personaId = insertPersonaStmt.run(
|
|
user,
|
|
name,
|
|
pronouns,
|
|
appearance,
|
|
background,
|
|
details,
|
|
exampleDialogues,
|
|
personaType
|
|
).lastInsertRowid;
|
|
const persona = getPersonaStmt.get(personaId, user);
|
|
res.json({persona});
|
|
});
|
|
|
|
app.put("/personas/:id", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaId = Number(req.params.id);
|
|
const validation = validatePersonaPayload(req.body);
|
|
if (validation.error) {
|
|
return res.status(400).json({error: validation.error});
|
|
}
|
|
const {name, pronouns, appearance, background, details, exampleDialogues} = validation.sanitized;
|
|
const result = updatePersonaStmt.run(
|
|
name,
|
|
pronouns,
|
|
appearance,
|
|
background,
|
|
details,
|
|
exampleDialogues,
|
|
personaId,
|
|
user
|
|
);
|
|
if (result.changes === 0) {
|
|
return res.status(404).json({error: "Persona not found"});
|
|
}
|
|
const persona = getPersonaStmt.get(personaId, user);
|
|
res.json({persona});
|
|
});
|
|
|
|
app.delete("/personas/:id", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaId = Number(req.params.id);
|
|
const activePersonas = getActivePersonaIdStmt.get(user) || {};
|
|
const result = deletePersonaStmt.run(personaId, user);
|
|
if (result.changes === 0) {
|
|
return res.status(404).json({error: "Persona not found"});
|
|
}
|
|
if (activePersonas.active_persona_id === personaId) {
|
|
setActivePersonaStmt.run(user, null);
|
|
}
|
|
if (activePersonas.active_user_persona_id === personaId) {
|
|
setActiveUserPersonaStmt.run(user, null);
|
|
}
|
|
deleteMarketPersonaByPersonaIdStmt.run(personaId, user);
|
|
res.json({message: "Persona deleted"});
|
|
});
|
|
|
|
app.post("/personas/:id/equip", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaId = Number(req.params.id);
|
|
const persona = getPersonaStmt.get(personaId, user);
|
|
if (!persona || persona.persona_type !== "assistant") {
|
|
return res.status(404).json({error: "Persona not found"});
|
|
}
|
|
setActivePersonaStmt.run(user, personaId);
|
|
res.json({activePersonaId: personaId});
|
|
});
|
|
|
|
app.post("/personas/:id/equip-user", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaId = Number(req.params.id);
|
|
const persona = getPersonaStmt.get(personaId, user);
|
|
if (!persona || persona.persona_type !== "user") {
|
|
return res.status(404).json({error: "Persona not found"});
|
|
}
|
|
setActiveUserPersonaStmt.run(user, personaId);
|
|
res.json({activeUserPersonaId: personaId});
|
|
});
|
|
|
|
app.post("/personas/clear", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
setActivePersonaStmt.run(user, null);
|
|
res.json({activePersonaId: null});
|
|
});
|
|
|
|
app.post("/personas/user/clear", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
setActiveUserPersonaStmt.run(user, null);
|
|
res.json({activeUserPersonaId: null});
|
|
});
|
|
|
|
app.get("/personas/market", requireLogin, (req, res) => {
|
|
const personas = listMarketPersonasStmt.all();
|
|
res.json({personas});
|
|
});
|
|
|
|
app.get("/dashboard/summary", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chats = countChatSessionsStmt.get(user).count;
|
|
const messages = getChatMessageCountForUserStmt.get(user).count;
|
|
const personas = getPersonaCountForUserStmt.get(user).count;
|
|
const published = getPublishedPersonaCountForUserStmt.get(user).count;
|
|
const marketPersonas = listMarketPersonasStmt.all().length;
|
|
|
|
res.json({
|
|
username: user,
|
|
stats: {
|
|
chats,
|
|
messages,
|
|
personas,
|
|
published,
|
|
marketPersonas
|
|
}
|
|
});
|
|
});
|
|
|
|
app.post("/personas/:id/publish", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaId = Number(req.params.id);
|
|
const persona = getPersonaForPublishStmt.get(personaId, user);
|
|
if (!persona) {
|
|
return res.status(404).json({error: "Persona not found"});
|
|
}
|
|
if (persona.source_market_id) {
|
|
return res.status(403).json({error: "Collected personas cannot be published."});
|
|
}
|
|
upsertMarketPersonaStmt.run(
|
|
personaId,
|
|
user,
|
|
persona.name,
|
|
persona.pronouns,
|
|
persona.appearance,
|
|
persona.background,
|
|
persona.details,
|
|
persona.example_dialogues,
|
|
persona.persona_type
|
|
);
|
|
const marketPersona = getMarketPersonaByPersonaIdStmt.get(personaId, user);
|
|
res.json({persona: marketPersona});
|
|
});
|
|
|
|
app.post("/personas/:id/unpublish", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const personaId = Number(req.params.id);
|
|
const persona = getPersonaForPublishStmt.get(personaId, user);
|
|
if (!persona) {
|
|
return res.status(404).json({error: "Persona not found"});
|
|
}
|
|
if (persona.source_market_id) {
|
|
return res.status(403).json({error: "Collected personas cannot be unpublished."});
|
|
}
|
|
const result = deleteMarketPersonaByPersonaIdStmt.run(personaId, user);
|
|
if (result.changes === 0) {
|
|
return res.status(404).json({error: "Persona is not published."});
|
|
}
|
|
res.json({message: "Persona unpublished"});
|
|
});
|
|
|
|
app.post("/personas/market/:id/collect", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const marketId = Number(req.params.id);
|
|
const marketPersona = getMarketPersonaStmt.get(marketId);
|
|
if (!marketPersona) {
|
|
return res.status(404).json({error: "Market persona not found"});
|
|
}
|
|
if (marketPersona.creator_username === user) {
|
|
return res.status(400).json({error: "You already own this persona."});
|
|
}
|
|
const existingPersona = getPersonaBySourceMarketStmt.get(user, marketId);
|
|
if (existingPersona) {
|
|
return res.status(400).json({error: "You already collected this persona."});
|
|
}
|
|
const personaId = insertMarketPersonaStmt.run(
|
|
user,
|
|
marketPersona.name,
|
|
marketPersona.pronouns,
|
|
marketPersona.appearance,
|
|
marketPersona.background,
|
|
marketPersona.details,
|
|
marketPersona.example_dialogues,
|
|
marketPersona.persona_type,
|
|
marketId,
|
|
marketPersona.creator_username
|
|
).lastInsertRowid;
|
|
incrementMarketUsageCountStmt.run(marketId);
|
|
let activePersonaId = null;
|
|
let activeUserPersonaId = null;
|
|
if (req.body?.equip) {
|
|
if (marketPersona.persona_type === "user") {
|
|
setActiveUserPersonaStmt.run(user, personaId);
|
|
activeUserPersonaId = personaId;
|
|
} else {
|
|
setActivePersonaStmt.run(user, personaId);
|
|
activePersonaId = personaId;
|
|
}
|
|
}
|
|
const persona = getPersonaStmt.get(personaId, user);
|
|
res.json({persona, activePersonaId, activeUserPersonaId});
|
|
});
|
|
|
|
app.post("/chat", requireLogin, async (req, res) => {
|
|
const user = req.session.user;
|
|
const {message, model, chatId} = req.body;
|
|
const selectedModel = model || "mistral:latest";
|
|
const targetChatId = Number(chatId);
|
|
|
|
if (!targetChatId) {
|
|
return res.status(400).json({error: "chatId is required"});
|
|
}
|
|
|
|
const session = getChatSessionStmt.get(targetChatId, user);
|
|
if (!session) {
|
|
return res.status(404).json({error: "Chat not found"});
|
|
}
|
|
|
|
if (!modelState.has(selectedModel)) {
|
|
modelState.set(selectedModel, {activeRequests: 0, timer: null});
|
|
}
|
|
const state = modelState.get(selectedModel);
|
|
state.activeRequests++;
|
|
|
|
try {
|
|
const activePersona = getActivePersonaStmt.get(user);
|
|
const activeUserPersona = getActiveUserPersonaStmt.get(user);
|
|
const history = getRecentChatMessagesStmt.all(targetChatId);
|
|
const conversation = [...history].reverse();
|
|
conversation.push({role: "user", content: message});
|
|
insertChatMessageStmt.run(targetChatId, "user", message);
|
|
touchChatSessionStmt.run(targetChatId, user);
|
|
const messagesPayload = [];
|
|
if (activePersona) {
|
|
messagesPayload.push({
|
|
role: "system",
|
|
content: buildPersonaPrompt(activePersona)
|
|
});
|
|
}
|
|
if (activeUserPersona) {
|
|
messagesPayload.push({
|
|
role: "system",
|
|
content: buildUserPersonaPrompt(activeUserPersona)
|
|
});
|
|
}
|
|
messagesPayload.push(
|
|
...conversation.map(m => ({
|
|
role: m.role === "bot" ? "assistant" : "user",
|
|
content: m.content
|
|
}))
|
|
);
|
|
|
|
const response = await fetch("https://ai.krishd.ch/api/chat", {
|
|
method: "POST",
|
|
headers: {"Content-Type": "application/json"},
|
|
body: JSON.stringify({
|
|
model: selectedModel,
|
|
messages: messagesPayload,
|
|
stream: true
|
|
})
|
|
});
|
|
|
|
if (!response.ok) {
|
|
throw new Error(`AI HTTP ${response.status}`);
|
|
}
|
|
const reader = response.body.getReader();
|
|
const decoder = new TextDecoder();
|
|
let buffer = "";
|
|
let fullReply = "";
|
|
while (true) {
|
|
const {value, done} = await reader.read();
|
|
if (done) break;
|
|
buffer += decoder.decode(value, {stream: true});
|
|
let lines = buffer.split("\n");
|
|
buffer = lines.pop();
|
|
for (const line of lines) {
|
|
if (!line.trim()) continue;
|
|
const json = JSON.parse(line);
|
|
if (json.done) {
|
|
break;
|
|
}
|
|
if (json.message?.content) {
|
|
fullReply += json.message.content;
|
|
}
|
|
}
|
|
}
|
|
insertChatMessageStmt.run(targetChatId, "bot", fullReply);
|
|
touchChatSessionStmt.run(targetChatId, user);
|
|
console.log("Reply length:", fullReply.length);
|
|
res.json({reply: fullReply});
|
|
} catch (err) {
|
|
console.error("AI chat error:", err);
|
|
res.status(500).json({error: "AI request failed"});
|
|
} finally {
|
|
state.activeRequests--;
|
|
|
|
if (state.activeRequests === 0) {
|
|
scheduleModelUnload(selectedModel);
|
|
}
|
|
}
|
|
});
|
|
|
|
app.get("/session", (req, res) => {
|
|
if (req.session.user) res.json({user: req.session.user});
|
|
else res.json({user: null});
|
|
});
|
|
|
|
app.get("/chat/history", requireLogin, (req, res) => {
|
|
const user = req.session.user;
|
|
const chats = listChatSessionsStmt.all(user);
|
|
res.json({history: chats});
|
|
});
|
|
|
|
app.get("/market", (req, res) => {
|
|
res.sendFile(path.resolve("public/market.html"));
|
|
});
|
|
|
|
app.get("/settings", (req, res) => {
|
|
res.sendFile(path.resolve("public/settings.html"));
|
|
});
|
|
|
|
app.get("/", (req, res) => {
|
|
res.sendFile(path.resolve("public/index.html"));
|
|
});
|
|
|
|
app.listen(PORT, () => console.log(`Server running at http://localhost:${PORT}`));
|