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browser/libs/common/src/platform/state/state.provider.ts
2024-03-12 21:10:01 +00:00

121 lines
5.1 KiB
TypeScript

import { Observable } from "rxjs";
import { UserId } from "../../types/guid";
import { DerivedStateDependencies } from "../../types/state";
import { DeriveDefinition } from "./derive-definition";
import { DerivedState } from "./derived-state";
import { GlobalState } from "./global-state";
// eslint-disable-next-line @typescript-eslint/no-unused-vars -- used in docs
import { GlobalStateProvider } from "./global-state.provider";
import { KeyDefinition } from "./key-definition";
import { UserKeyDefinition } from "./user-key-definition";
import { ActiveUserState, SingleUserState } from "./user-state";
// eslint-disable-next-line @typescript-eslint/no-unused-vars -- used in docs
import { ActiveUserStateProvider, SingleUserStateProvider } from "./user-state.provider";
/** Convenience wrapper class for {@link ActiveUserStateProvider}, {@link SingleUserStateProvider},
* and {@link GlobalStateProvider}.
*/
export abstract class StateProvider {
/** @see{@link ActiveUserStateProvider.activeUserId$} */
activeUserId$: Observable<UserId | undefined>;
/**
* Gets a state observable for a given key and userId.
*
* @remarks If userId is falsy the observable returned will point to the currently active user _and not update if the active user changes_.
* This is different to how `getActive` works and more similar to `getUser` for whatever user happens to be active at the time of the call.
*
* @note consider converting your {@link KeyDefinition} to a {@link UserKeyDefinition} for additional features.
*
* @param keyDefinition - The key definition for the state you want to get.
* @param userId - The userId for which you want the state for. If not provided, the state for the currently active user will be returned.
*/
abstract getUserState$<T>(keyDefinition: KeyDefinition<T>, userId?: UserId): Observable<T>;
/**
* Gets a state observable for a given key and userId.
*
* @remarks If userId is falsy the observable returned will point to the currently active user _and not update if the active user changes_.
* This is different to how `getActive` works and more similar to `getUser` for whatever user happens to be active at the time of the call.
*
* @param keyDefinition - The key definition for the state you want to get.
* @param userId - The userId for which you want the state for. If not provided, the state for the currently active user will be returned.
*/
abstract getUserState$<T>(keyDefinition: UserKeyDefinition<T>, userId?: UserId): Observable<T>;
/**
* Sets the state for a given key and userId.
*
* @overload
* @param keyDefinition - The key definition for the state you want to set.
* @param value - The value to set the state to.
* @param userId - The userId for which you want to set the state for. If not provided, the state for the currently active user will be set.
*/
abstract setUserState<T>(
keyDefinition: UserKeyDefinition<T>,
value: T,
userId?: UserId,
): Promise<[UserId, T]>;
/**
* Sets the state for a given key and userId.
*
* **NOTE** Consider converting your {@link KeyDefinition} to a {@link UserKeyDefinition} for additional features.
*
* @overload
* @param keyDefinition - The key definition for the state you want to set.
* @param value - The value to set the state to.
* @param userId - The userId for which you want to set the state for. If not provided, the state for the currently active user will be set.
*/
abstract setUserState<T>(
keyDefinition: KeyDefinition<T>,
value: T,
userId?: UserId,
): Promise<[UserId, T]>;
abstract setUserState<T>(
keyDefinition: KeyDefinition<T> | UserKeyDefinition<T>,
value: T,
userId?: UserId,
): Promise<[UserId, T]>;
/** @see{@link ActiveUserStateProvider.get} */
abstract getActive<T>(keyDefinition: UserKeyDefinition<T>): ActiveUserState<T>;
/**
* @see{@link ActiveUserStateProvider.get}
*
* **NOTE** Consider converting your {@link KeyDefinition} to a {@link UserKeyDefinition} for additional features.
*/
abstract getActive<T>(keyDefinition: KeyDefinition<T>): ActiveUserState<T>;
/** @see{@link ActiveUserStateProvider.get} */
abstract getActive<T>(keyDefinition: KeyDefinition<T> | UserKeyDefinition<T>): ActiveUserState<T>;
/** @see{@link SingleUserStateProvider.get} */
abstract getUser<T>(userId: UserId, keyDefinition: UserKeyDefinition<T>): SingleUserState<T>;
/**
* @see{@link SingleUserStateProvider.get}
*
* **NOTE** Consider converting your {@link KeyDefinition} to a {@link UserKeyDefinition} for additional features.
*/
abstract getUser<T>(userId: UserId, keyDefinition: KeyDefinition<T>): SingleUserState<T>;
/** @see{@link SingleUserStateProvider.get} */
abstract getUser<T>(
userId: UserId,
keyDefinition: KeyDefinition<T> | UserKeyDefinition<T>,
): SingleUserState<T>;
/** @see{@link GlobalStateProvider.get} */
getGlobal: <T>(keyDefinition: KeyDefinition<T>) => GlobalState<T>;
getDerived: <TFrom, TTo, TDeps extends DerivedStateDependencies>(
parentState$: Observable<TFrom>,
deriveDefinition: DeriveDefinition<TFrom, TTo, TDeps>,
dependencies: TDeps,
) => DerivedState<TTo>;
}