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import { Elysia, error, t } from "elysia";
import { authPlugin } from "$api/authPlugin";
import { collections } from "$lib/server/database";
import { ObjectId } from "mongodb";
import { authCondition } from "$lib/server/auth";
import { validModelIdSchema } from "$lib/server/models";
import { convertLegacyConversation } from "$lib/utils/tree/convertLegacyConversation";
import type { Conversation } from "$lib/types/Conversation";
import { CONV_NUM_PER_PAGE } from "$lib/constants/pagination";
export const conversationGroup = new Elysia().use(authPlugin).group("/conversations", (app) => {
return (
app
.guard({
as: "scoped",
beforeHandle: async ({ locals }) => {
if (!locals.user?._id && !locals.sessionId) {
return error(401, "Must have a valid session or user");
}
},
})
.get(
"",
async ({ locals, query }) => {
const convs = await collections.conversations
.find(authCondition(locals))
.project<Pick<Conversation, "_id" | "title" | "updatedAt" | "model">>({
title: 1,
updatedAt: 1,
model: 1,
})
.sort({ updatedAt: -1 })
.skip((query.p ?? 0) * CONV_NUM_PER_PAGE)
.limit(CONV_NUM_PER_PAGE)
.toArray();
const nConversations = await collections.conversations.countDocuments(
authCondition(locals)
);
const res = convs.map((conv) => ({
_id: conv._id,
id: conv._id, // legacy param iOS
title: conv.title,
updatedAt: conv.updatedAt,
model: conv.model,
modelId: conv.model, // legacy param iOS
}));
return { conversations: res, nConversations };
},
{
query: t.Object({
p: t.Optional(t.Number()),
}),
}
)
.delete("", async ({ locals }) => {
const res = await collections.conversations.deleteMany({
...authCondition(locals),
});
return res.deletedCount;
})
// search endpoint removed
.group(
"/:id",
{
params: t.Object({
id: t.String(),
}),
},
(app) => {
return app
.derive(async ({ locals, params, query }) => {
let conversation;
let shared = false;
// if the conversation is shared
if (params.id.length === 7) {
// shared link of length 7
conversation = await collections.sharedConversations.findOne({
_id: params.id,
});
shared = true;
if (!conversation) {
throw new Error("Conversation not found");
}
} else {
// todo: add validation on params.id
try {
new ObjectId(params.id);
} catch {
throw new Error("Invalid conversation ID format");
}
conversation = await collections.conversations.findOne({
_id: new ObjectId(params.id),
...authCondition(locals),
});
if (!conversation) {
const conversationExists =
(await collections.conversations.countDocuments({
_id: new ObjectId(params.id),
})) !== 0;
if (conversationExists) {
throw new Error(
"You don't have access to this conversation. If someone gave you this link, ask them to use the 'share' feature instead."
);
}
throw new Error("Conversation not found.");
}
if (query.fromShare && conversation.meta?.fromShareId === query.fromShare) {
shared = true;
}
}
const convertedConv = {
...conversation,
...convertLegacyConversation(conversation),
shared,
};
return { conversation: convertedConv };
})
.get(
"",
async ({ conversation }) => {
return {
messages: conversation.messages,
title: conversation.title,
model: conversation.model,
preprompt: conversation.preprompt,
rootMessageId: conversation.rootMessageId,
id: conversation._id.toString(),
updatedAt: conversation.updatedAt,
modelId: conversation.model,
shared: conversation.shared,
};
},
{
query: t.Optional(
t.Object({
fromShare: t.Optional(t.String()),
})
),
}
)
.post("", () => {
// todo: post new message
throw new Error("Not implemented");
})
.delete("", async ({ locals, params }) => {
const res = await collections.conversations.deleteOne({
_id: new ObjectId(params.id),
...authCondition(locals),
});
if (res.deletedCount === 0) {
throw new Error("Conversation not found");
}
return { success: true };
})
.get("/output/:sha256", () => {
// todo: get output
throw new Error("Not implemented");
})
.post("/share", () => {
// todo: share conversation
throw new Error("Not implemented");
})
.post("/stop-generating", () => {
// todo: stop generating
throw new Error("Not implemented");
})
.patch(
"",
async ({ locals, params, body }) => {
if (body.model) {
if (!validModelIdSchema.safeParse(body.model).success) {
throw new Error("Invalid model ID");
}
}
// Only include defined values in the update (sanitize title)
const updateValues = {
...(body.title !== undefined && {
title: body.title.replace(/<\/?think>/gi, "").trim(),
}),
...(body.model !== undefined && { model: body.model }),
};
const res = await collections.conversations.updateOne(
{
_id: new ObjectId(params.id),
...authCondition(locals),
},
{
$set: updateValues,
}
);
// Use matchedCount if available (newer drivers), fallback to modifiedCount for compatibility
if (
typeof res.matchedCount === "number"
? res.matchedCount === 0
: res.modifiedCount === 0
) {
throw new Error("Conversation not found");
}
return { success: true };
},
{
body: t.Object({
title: t.Optional(
t.String({
minLength: 1,
maxLength: 100,
})
),
model: t.Optional(t.String()),
}),
}
)
.delete(
"/message/:messageId",
async ({ locals, params, conversation }) => {
if (!conversation.messages.map((m) => m.id).includes(params.messageId)) {
throw new Error("Message not found");
}
const filteredMessages = conversation.messages
.filter(
(message) =>
// not the message AND the message is not in ancestors
!(message.id === params.messageId) &&
message.ancestors &&
!message.ancestors.includes(params.messageId)
)
.map((message) => {
// remove the message from children if it's there
if (message.children && message.children.includes(params.messageId)) {
message.children = message.children.filter(
(child) => child !== params.messageId
);
}
return message;
});
const res = await collections.conversations.updateOne(
{ _id: new ObjectId(conversation._id), ...authCondition(locals) },
{ $set: { messages: filteredMessages } }
);
if (res.modifiedCount === 0) {
throw new Error("Deleting message failed");
}
return { success: true };
},
{
params: t.Object({
id: t.String(),
messageId: t.String(),
}),
}
);
}
)
);
});
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