# Glossary

The goal is to define the meaning behind specific terminology used in this project.
Currently this document is incomplete, it'll be improved over time, feel free to contribute improvements.

## ID

A snowflake ID, a snowflake ID is a unique identifier used across the client
and server, it embeds metadata including the date it was generated which can
be retrieved for display purposes.

### User ID

A snowflake ID for a user, used as the primary way to refer to a user in a
unique way (like opening a signal with a user).

### Receiver ID

Usually refers to the "other" person's ID in a user-to-user messaging, but
can also refer to the literal `receiver_id` SQL field on the `messages` table
which may be either the "other" person, or the user itself.

### Frequency ID

A snowflake ID that refers to a frequency.

### Chad ID

A snowflake ID that refers to either a frequency ID or a receiver ID.

### Signal

A currently open chat between 2 individual users ("DM").

## Session

A struct that helps with managing a single active connection, it contains
various metadata including the address of the connection and has methods for
reading/writing to the connection, it is also responsible for metrics and
rate limiting for per-connection requests.

### Unauthenticated Session

A session that has not yet been authenticated, so it doesn't have a User ID
or public key yet, and has not been added to the server sessions map.

### Authenticated Session

A session that is authenticated and attached to a user, it has a UserID and a
public key and it has been mapped into the server's session map.