feat(*): first mvp

frontend/src/lib/convex/users.ts

@@ -0,0 +1,129 @@
+import { v } from 'convex/values';
+import { mutation, query } from './_generated/server';
+
+const DEFAULT_MODEL = 'gemini-3-pro-preview';
+
+export const getById = query({
+	args: { userId: v.id('users') },
+	returns: v.union(
+		v.object({
+			_id: v.id('users'),
+			_creationTime: v.number(),
+			telegramId: v.int64(),
+			telegramChatId: v.optional(v.int64()),
+			geminiApiKey: v.optional(v.string()),
+			systemPrompt: v.optional(v.string()),
+			followUpPrompt: v.optional(v.string()),
+			model: v.string(),
+			followUpModel: v.optional(v.string()),
+			activeChatId: v.optional(v.id('chats'))
+		}),
+		v.null()
+	),
+	handler: async (ctx, args) => {
+		return await ctx.db.get(args.userId);
+	}
+});
+
+export const getByTelegramId = query({
+	args: { telegramId: v.int64() },
+	returns: v.union(
+		v.object({
+			_id: v.id('users'),
+			_creationTime: v.number(),
+			telegramId: v.int64(),
+			telegramChatId: v.optional(v.int64()),
+			geminiApiKey: v.optional(v.string()),
+			systemPrompt: v.optional(v.string()),
+			followUpPrompt: v.optional(v.string()),
+			model: v.string(),
+			followUpModel: v.optional(v.string()),
+			activeChatId: v.optional(v.id('chats'))
+		}),
+		v.null()
+	),
+	handler: async (ctx, args) => {
+		return await ctx.db
+			.query('users')
+			.withIndex('by_telegram_id', (q) => q.eq('telegramId', args.telegramId))
+			.unique();
+	}
+});
+
+export const getOrCreate = mutation({
+	args: { telegramId: v.int64(), telegramChatId: v.optional(v.int64()) },
+	returns: v.id('users'),
+	handler: async (ctx, args) => {
+		const existing = await ctx.db
+			.query('users')
+			.withIndex('by_telegram_id', (q) => q.eq('telegramId', args.telegramId))
+			.unique();
+
+		if (existing) {
+			if (args.telegramChatId && existing.telegramChatId !== args.telegramChatId) {
+				await ctx.db.patch(existing._id, { telegramChatId: args.telegramChatId });
+			}
+			return existing._id;
+		}
+
+		return await ctx.db.insert('users', {
+			telegramId: args.telegramId,
+			telegramChatId: args.telegramChatId,
+			model: DEFAULT_MODEL
+		});
+	}
+});
+
+export const setApiKey = mutation({
+	args: { userId: v.id('users'), apiKey: v.string() },
+	returns: v.null(),
+	handler: async (ctx, args) => {
+		await ctx.db.patch(args.userId, { geminiApiKey: args.apiKey });
+		return null;
+	}
+});
+
+export const setSystemPrompt = mutation({
+	args: { userId: v.id('users'), prompt: v.string() },
+	returns: v.null(),
+	handler: async (ctx, args) => {
+		await ctx.db.patch(args.userId, { systemPrompt: args.prompt });
+		return null;
+	}
+});
+
+export const setFollowUpPrompt = mutation({
+	args: { userId: v.id('users'), prompt: v.string() },
+	returns: v.null(),
+	handler: async (ctx, args) => {
+		await ctx.db.patch(args.userId, { followUpPrompt: args.prompt });
+		return null;
+	}
+});
+
+export const setModel = mutation({
+	args: { userId: v.id('users'), model: v.string() },
+	returns: v.null(),
+	handler: async (ctx, args) => {
+		await ctx.db.patch(args.userId, { model: args.model });
+		return null;
+	}
+});
+
+export const setFollowUpModel = mutation({
+	args: { userId: v.id('users'), model: v.string() },
+	returns: v.null(),
+	handler: async (ctx, args) => {
+		await ctx.db.patch(args.userId, { followUpModel: args.model });
+		return null;
+	}
+});
+
+export const setActiveChat = mutation({
+	args: { userId: v.id('users'), chatId: v.id('chats') },
+	returns: v.null(),
+	handler: async (ctx, args) => {
+		await ctx.db.patch(args.userId, { activeChatId: args.chatId });
+		return null;
+	}
+});