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import type { ToastActionElement, ToastProps } from "@/components/ui/toast";
const TOAST_LIMIT = 1;
// Default visible duration for toasts (ms)
const DEFAULT_TOAST_DURATION = 1000;
// Delay before actually removing toast from state (allow animations) (ms)
const TOAST_REMOVE_DELAY = 3500;
const ARE_TOASTS_DISABLED = import.meta.env.VITE_DISABLE_TOASTS === "true";
const noopToastResponse = {
id: "",
dismiss: () => {},
update: (_props: Toast) => {},
};
type ToasterToast = ToastProps & {
id: string;
title?: React.ReactNode;
description?: React.ReactNode;
action?: ToastActionElement;
};
// eslint-disable-next-line @typescript-eslint/no-unused-vars -- used via typeof in ActionType
const actionTypes = {
ADD_TOAST: "ADD_TOAST",
UPDATE_TOAST: "UPDATE_TOAST",
DISMISS_TOAST: "DISMISS_TOAST",
REMOVE_TOAST: "REMOVE_TOAST",
} as const;
let count = 0;
function genId() {
count = (count + 1) % Number.MAX_SAFE_INTEGER;
return count.toString();
}
type ActionType = typeof actionTypes;
type Action =
| {
type: ActionType["ADD_TOAST"];
toast: ToasterToast;
}
| {
type: ActionType["UPDATE_TOAST"];
toast: Partial<ToasterToast>;
}
| {
type: ActionType["DISMISS_TOAST"];
toastId?: ToasterToast["id"];
}
| {
type: ActionType["REMOVE_TOAST"];
toastId?: ToasterToast["id"];
};
interface State {
toasts: ToasterToast[];
}
const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>();
const addToRemoveQueue = (toastId: string) => {
if (toastTimeouts.has(toastId)) {
return;
}
const timeout = setTimeout(() => {
toastTimeouts.delete(toastId);
dispatch({
type: "REMOVE_TOAST",
toastId: toastId,
});
}, TOAST_REMOVE_DELAY);
toastTimeouts.set(toastId, timeout);
};
const reducer = (state: State, action: Action): State => {
switch (action.type) {
case "ADD_TOAST":
return {
...state,
toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
};
case "UPDATE_TOAST":
return {
...state,
toasts: state.toasts.map((t) =>
t.id === action.toast.id ? { ...t, ...action.toast } : t,
),
};
case "DISMISS_TOAST": {
const { toastId } = action;
// ! Side effects ! - This could be extracted into a dismissToast() action,
// but I'll keep it here for simplicity
if (toastId) {
addToRemoveQueue(toastId);
} else {
state.toasts.forEach((toast) => {
addToRemoveQueue(toast.id);
});
}
return {
...state,
toasts: state.toasts.map((t) =>
t.id === toastId || toastId === undefined
? {
...t,
open: false,
}
: t,
),
};
}
case "REMOVE_TOAST":
Iif (action.toastId === undefined) {
return {
...state,
toasts: [],
};
}
return {
...state,
toasts: state.toasts.filter((t) => t.id !== action.toastId),
};
}
};
const listeners: Array<(state: State) => void> = [];
let memoryState: State = { toasts: [] };
function dispatch(action: Action) {
memoryState = reducer(memoryState, action);
listeners.forEach((listener) => {
listener(memoryState);
});
}
type Toast = Omit<ToasterToast, "id">;
// exported types used by consumers (eg. editor commands hook)
export type { Toast };
export type ToastFn = (props: Toast) => {
id: string;
dismiss: () => void;
update: (props: Toast) => void;
};
function toast({ ...props }: Toast) {
Iif (ARE_TOASTS_DISABLED) {
return noopToastResponse;
}
const id = genId();
// expose a simpler `update` that accepts toast options (without id)
const update = (props: Toast) =>
dispatch({
type: "UPDATE_TOAST",
toast: { ...props, id },
});
const dismiss = () => dispatch({ type: "DISMISS_TOAST", toastId: id });
// Allow overriding the default via localStorage (set by Settings dialog)
let duration = (props as any).duration ?? DEFAULT_TOAST_DURATION;
try {
Eif (globalThis.window !== undefined) {
const stored = globalThis.localStorage.getItem("unoToastDuration");
if (stored !== null) {
if (stored === "infinite") {
duration = Infinity;
} else {
const ms = Number.parseInt(stored, 10);
if (!Number.isNaN(ms)) duration = ms;
}
}
}
} catch {
// ignore localStorage errors
}
dispatch({
type: "ADD_TOAST",
toast: {
...props,
id,
duration,
open: true,
onOpenChange: (open) => {
Eif (!open) dismiss();
},
},
});
return {
id: id,
dismiss,
update,
};
}
function useToast() {
const [state, setState] = React.useState<State>(memoryState);
React.useEffect(() => {
Iif (ARE_TOASTS_DISABLED) {
return;
}
listeners.push(setState);
return () => {
const index = listeners.indexOf(setState);
Eif (index > -1) {
listeners.splice(index, 1);
}
};
}, [state]);
return {
...state,
toast,
dismiss: ARE_TOASTS_DISABLED
? () => {}
: (toastId?: string) => dispatch({ type: "DISMISS_TOAST", toastId }),
};
}
export { useToast };
|