|
| 1 | +"use client" |
| 2 | + |
| 3 | +// Inspired by react-hot-toast library |
| 4 | +import * as React from "react" |
| 5 | + |
| 6 | +import type { |
| 7 | + ToastActionElement, |
| 8 | + ToastProps, |
| 9 | +} from "@/components/ui/toast" |
| 10 | + |
| 11 | +const TOAST_LIMIT = 1 |
| 12 | +const TOAST_REMOVE_DELAY = 1000000 |
| 13 | + |
| 14 | +type ToasterToast = ToastProps & { |
| 15 | + id: string |
| 16 | + title?: React.ReactNode |
| 17 | + description?: React.ReactNode |
| 18 | + action?: ToastActionElement |
| 19 | +} |
| 20 | + |
| 21 | +const actionTypes = { |
| 22 | + ADD_TOAST: "ADD_TOAST", |
| 23 | + UPDATE_TOAST: "UPDATE_TOAST", |
| 24 | + DISMISS_TOAST: "DISMISS_TOAST", |
| 25 | + REMOVE_TOAST: "REMOVE_TOAST", |
| 26 | +} as const |
| 27 | + |
| 28 | +let count = 0 |
| 29 | + |
| 30 | +function genId() { |
| 31 | + count = (count + 1) % Number.MAX_SAFE_INTEGER |
| 32 | + return count.toString() |
| 33 | +} |
| 34 | + |
| 35 | +type ActionType = typeof actionTypes |
| 36 | + |
| 37 | +type Action = |
| 38 | + | { |
| 39 | + type: ActionType["ADD_TOAST"] |
| 40 | + toast: ToasterToast |
| 41 | + } |
| 42 | + | { |
| 43 | + type: ActionType["UPDATE_TOAST"] |
| 44 | + toast: Partial<ToasterToast> |
| 45 | + } |
| 46 | + | { |
| 47 | + type: ActionType["DISMISS_TOAST"] |
| 48 | + toastId?: ToasterToast["id"] |
| 49 | + } |
| 50 | + | { |
| 51 | + type: ActionType["REMOVE_TOAST"] |
| 52 | + toastId?: ToasterToast["id"] |
| 53 | + } |
| 54 | + |
| 55 | +interface State { |
| 56 | + toasts: ToasterToast[] |
| 57 | +} |
| 58 | + |
| 59 | +const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>() |
| 60 | + |
| 61 | +const addToRemoveQueue = (toastId: string) => { |
| 62 | + if (toastTimeouts.has(toastId)) { |
| 63 | + return |
| 64 | + } |
| 65 | + |
| 66 | + const timeout = setTimeout(() => { |
| 67 | + toastTimeouts.delete(toastId) |
| 68 | + dispatch({ |
| 69 | + type: "REMOVE_TOAST", |
| 70 | + toastId: toastId, |
| 71 | + }) |
| 72 | + }, TOAST_REMOVE_DELAY) |
| 73 | + |
| 74 | + toastTimeouts.set(toastId, timeout) |
| 75 | +} |
| 76 | + |
| 77 | +export const reducer = (state: State, action: Action): State => { |
| 78 | + switch (action.type) { |
| 79 | + case "ADD_TOAST": |
| 80 | + return { |
| 81 | + ...state, |
| 82 | + toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT), |
| 83 | + } |
| 84 | + |
| 85 | + case "UPDATE_TOAST": |
| 86 | + return { |
| 87 | + ...state, |
| 88 | + toasts: state.toasts.map((t) => |
| 89 | + t.id === action.toast.id ? { ...t, ...action.toast } : t |
| 90 | + ), |
| 91 | + } |
| 92 | + |
| 93 | + case "DISMISS_TOAST": { |
| 94 | + const { toastId } = action |
| 95 | + |
| 96 | + // ! Side effects ! - This could be extracted into a dismissToast() action, |
| 97 | + // but I'll keep it here for simplicity |
| 98 | + if (toastId) { |
| 99 | + addToRemoveQueue(toastId) |
| 100 | + } else { |
| 101 | + state.toasts.forEach((toast) => { |
| 102 | + addToRemoveQueue(toast.id) |
| 103 | + }) |
| 104 | + } |
| 105 | + |
| 106 | + return { |
| 107 | + ...state, |
| 108 | + toasts: state.toasts.map((t) => |
| 109 | + t.id === toastId || toastId === undefined |
| 110 | + ? { |
| 111 | + ...t, |
| 112 | + open: false, |
| 113 | + } |
| 114 | + : t |
| 115 | + ), |
| 116 | + } |
| 117 | + } |
| 118 | + case "REMOVE_TOAST": |
| 119 | + if (action.toastId === undefined) { |
| 120 | + return { |
| 121 | + ...state, |
| 122 | + toasts: [], |
| 123 | + } |
| 124 | + } |
| 125 | + return { |
| 126 | + ...state, |
| 127 | + toasts: state.toasts.filter((t) => t.id !== action.toastId), |
| 128 | + } |
| 129 | + } |
| 130 | +} |
| 131 | + |
| 132 | +const listeners: Array<(state: State) => void> = [] |
| 133 | + |
| 134 | +let memoryState: State = { toasts: [] } |
| 135 | + |
| 136 | +function dispatch(action: Action) { |
| 137 | + memoryState = reducer(memoryState, action) |
| 138 | + listeners.forEach((listener) => { |
| 139 | + listener(memoryState) |
| 140 | + }) |
| 141 | +} |
| 142 | + |
| 143 | +type Toast = Omit<ToasterToast, "id"> |
| 144 | + |
| 145 | +function toast({ ...props }: Toast) { |
| 146 | + const id = genId() |
| 147 | + |
| 148 | + const update = (props: ToasterToast) => |
| 149 | + dispatch({ |
| 150 | + type: "UPDATE_TOAST", |
| 151 | + toast: { ...props, id }, |
| 152 | + }) |
| 153 | + const dismiss = () => dispatch({ type: "DISMISS_TOAST", toastId: id }) |
| 154 | + |
| 155 | + dispatch({ |
| 156 | + type: "ADD_TOAST", |
| 157 | + toast: { |
| 158 | + ...props, |
| 159 | + id, |
| 160 | + open: true, |
| 161 | + onOpenChange: (open) => { |
| 162 | + if (!open) dismiss() |
| 163 | + }, |
| 164 | + }, |
| 165 | + }) |
| 166 | + |
| 167 | + return { |
| 168 | + id: id, |
| 169 | + dismiss, |
| 170 | + update, |
| 171 | + } |
| 172 | +} |
| 173 | + |
| 174 | +function useToast() { |
| 175 | + const [state, setState] = React.useState<State>(memoryState) |
| 176 | + |
| 177 | + React.useEffect(() => { |
| 178 | + listeners.push(setState) |
| 179 | + return () => { |
| 180 | + const index = listeners.indexOf(setState) |
| 181 | + if (index > -1) { |
| 182 | + listeners.splice(index, 1) |
| 183 | + } |
| 184 | + } |
| 185 | + }, [state]) |
| 186 | + |
| 187 | + return { |
| 188 | + ...state, |
| 189 | + toast, |
| 190 | + dismiss: (toastId?: string) => dispatch({ type: "DISMISS_TOAST", toastId }), |
| 191 | + } |
| 192 | +} |
| 193 | + |
| 194 | +export { useToast, toast } |
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