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// ~/modules/cart/utils/checkboxUpdateState.js
/**
* Enhanced state manager for checkbox updates
* Tracks both global update state and individual checkbox update states
*/
// Track the number of ongoing updates
let updateCount = 0;
let listeners = [];
// Track which checkboxes are currently updating by ID
let updatingCheckboxIds = new Set();
const checkboxUpdateState = {
// Check if any checkboxes are currently updating (for buttons)
isUpdating: () => updateCount > 0,
// Check if a specific checkbox is updating (for disabling just that checkbox)
isCheckboxUpdating: (itemId) => updatingCheckboxIds.has(itemId.toString()),
// Start an update for a specific checkbox
startUpdate: (itemId = null) => {
updateCount++;
// If an item ID is provided, mark it as updating
if (itemId !== null) {
updatingCheckboxIds.add(itemId.toString());
}
notifyListeners();
return updateCount;
},
// End an update for a specific checkbox
endUpdate: (itemId = null) => {
updateCount = Math.max(0, updateCount - 1);
// If an item ID is provided, remove it from updating set
if (itemId !== null) {
updatingCheckboxIds.delete(itemId.toString());
}
notifyListeners();
return updateCount;
},
// Reset the update counter and clear all updating checkboxes
reset: () => {
updateCount = 0;
updatingCheckboxIds.clear();
notifyListeners();
},
// Get IDs of all checkboxes currently updating (for debugging)
getUpdatingCheckboxIds: () => [...updatingCheckboxIds],
// Add a listener function to be called when update state changes
addListener: (callback) => {
if (typeof callback === 'function') {
listeners.push(callback);
// Immediately call with current state
callback(updateCount > 0);
}
},
// Remove a listener
removeListener: (callback) => {
listeners = listeners.filter((listener) => listener !== callback);
},
// Get current counter (for debugging)
getUpdateCount: () => updateCount,
};
// Private function to notify all listeners of state changes
function notifyListeners() {
const isUpdating = updateCount > 0;
listeners.forEach((listener) => {
try {
listener(isUpdating);
} catch (error) {
console.error('Error in checkbox update state listener:', error);
}
});
}
export default checkboxUpdateState;
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