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import {
RelationshipAddEvent,
User,
PublicUserProjection,
RelationshipType,
RelationshipRemoveEvent,
emitEvent,
Relationship,
Config,
} from "@fosscord/util";
import { Router, Response, Request } from "express";
import { HTTPError } from "lambert-server";
import { DiscordApiErrors } from "@fosscord/util";
import { route } from "@fosscord/api";
const router = Router();
const userProjection: (keyof User)[] = [
"relationships",
...PublicUserProjection,
];
router.get("/", route({}), async (req: Request, res: Response) => {
const user = await User.findOneOrFail({
where: { id: req.user_id },
relations: ["relationships", "relationships.to"],
select: ["id", "relationships"],
});
//TODO DTO
const related_users = user.relationships.map((r) => {
return {
id: r.to.id,
type: r.type,
nickname: null,
user: r.to.toPublicUser(),
};
});
return res.json(related_users);
});
router.put(
"/:id",
route({ body: "RelationshipPutSchema" }),
async (req: Request, res: Response) => {
return await updateRelationship(
req,
res,
await User.findOneOrFail({
where: { id: req.params.id },
relations: ["relationships", "relationships.to"],
select: userProjection,
}),
req.body.type ?? RelationshipType.friends,
);
},
);
router.post(
"/",
route({ body: "RelationshipPostSchema" }),
async (req: Request, res: Response) => {
return await updateRelationship(
req,
res,
await User.findOneOrFail({
relations: ["relationships", "relationships.to"],
select: userProjection,
where: {
discriminator: String(req.body.discriminator).padStart(
4,
"0",
), //Discord send the discriminator as integer, we need to add leading zeroes
username: req.body.username,
},
}),
req.body.type,
);
},
);
router.delete("/:id", route({}), async (req: Request, res: Response) => {
const { id } = req.params;
if (id === req.user_id)
throw new HTTPError("You can't remove yourself as a friend");
const user = await User.findOneOrFail({
where: { id: req.user_id },
select: userProjection,
relations: ["relationships"],
});
const friend = await User.findOneOrFail({
where: { id: id },
select: userProjection,
relations: ["relationships"],
});
const relationship = user.relationships.find((x) => x.to_id === id);
const friendRequest = friend.relationships.find(
(x) => x.to_id === req.user_id,
);
if (!relationship)
throw new HTTPError("You are not friends with the user", 404);
if (relationship?.type === RelationshipType.blocked) {
// unblock user
await Promise.all([
Relationship.delete({ id: relationship.id }),
emitEvent({
event: "RELATIONSHIP_REMOVE",
user_id: req.user_id,
data: relationship.toPublicRelationship(),
} as RelationshipRemoveEvent),
]);
return res.sendStatus(204);
}
if (friendRequest && friendRequest.type !== RelationshipType.blocked) {
await Promise.all([
Relationship.delete({ id: friendRequest.id }),
await emitEvent({
event: "RELATIONSHIP_REMOVE",
data: friendRequest.toPublicRelationship(),
user_id: id,
} as RelationshipRemoveEvent),
]);
}
await Promise.all([
Relationship.delete({ id: relationship.id }),
emitEvent({
event: "RELATIONSHIP_REMOVE",
data: relationship.toPublicRelationship(),
user_id: req.user_id,
} as RelationshipRemoveEvent),
]);
return res.sendStatus(204);
});
export default router;
async function updateRelationship(
req: Request,
res: Response,
friend: User,
type: RelationshipType,
) {
const id = friend.id;
if (id === req.user_id)
throw new HTTPError("You can't add yourself as a friend");
const user = await User.findOneOrFail({
where: { id: req.user_id },
relations: ["relationships", "relationships.to"],
select: userProjection,
});
var relationship = user.relationships.find((x) => x.to_id === id);
const friendRequest = friend.relationships.find(
(x) => x.to_id === req.user_id,
);
// TODO: you can add infinitely many blocked users (should this be prevented?)
if (type === RelationshipType.blocked) {
if (relationship) {
if (relationship.type === RelationshipType.blocked)
throw new HTTPError("You already blocked the user");
relationship.type = RelationshipType.blocked;
await relationship.save();
} else {
relationship = await Relationship.create({
to_id: id,
type: RelationshipType.blocked,
from_id: req.user_id,
}).save();
}
if (friendRequest && friendRequest.type !== RelationshipType.blocked) {
await Promise.all([
Relationship.delete({ id: friendRequest.id }),
emitEvent({
event: "RELATIONSHIP_REMOVE",
data: friendRequest.toPublicRelationship(),
user_id: id,
} as RelationshipRemoveEvent),
]);
}
await emitEvent({
event: "RELATIONSHIP_ADD",
data: relationship.toPublicRelationship(),
user_id: req.user_id,
} as RelationshipAddEvent);
return res.sendStatus(204);
}
const { maxFriends } = Config.get().limits.user;
if (user.relationships.length >= maxFriends)
throw DiscordApiErrors.MAXIMUM_FRIENDS.withParams(maxFriends);
var incoming_relationship = Relationship.create({
nickname: undefined,
type: RelationshipType.incoming,
to: user,
from: friend,
});
var outgoing_relationship = Relationship.create({
nickname: undefined,
type: RelationshipType.outgoing,
to: friend,
from: user,
});
if (friendRequest) {
if (friendRequest.type === RelationshipType.blocked)
throw new HTTPError("The user blocked you");
if (friendRequest.type === RelationshipType.friends)
throw new HTTPError("You are already friends with the user");
// accept friend request
incoming_relationship = friendRequest;
incoming_relationship.type = RelationshipType.friends;
}
if (relationship) {
if (relationship.type === RelationshipType.outgoing)
throw new HTTPError("You already sent a friend request");
if (relationship.type === RelationshipType.blocked)
throw new HTTPError(
"Unblock the user before sending a friend request",
);
if (relationship.type === RelationshipType.friends)
throw new HTTPError("You are already friends with the user");
outgoing_relationship = relationship;
outgoing_relationship.type = RelationshipType.friends;
}
await Promise.all([
incoming_relationship.save(),
outgoing_relationship.save(),
emitEvent({
event: "RELATIONSHIP_ADD",
data: outgoing_relationship.toPublicRelationship(),
user_id: req.user_id,
} as RelationshipAddEvent),
emitEvent({
event: "RELATIONSHIP_ADD",
data: {
...incoming_relationship.toPublicRelationship(),
should_notify: true,
},
user_id: id,
} as RelationshipAddEvent),
]);
return res.sendStatus(204);
}
|
