add reorder component

[rick-hup]

this pr add ReorderGroup、ReorderItem component.
fix type #64 .

[codereviewbot-ai]

The removeItem function uses indexOf to find the index of the item and splice to remove it. This approach has a time complexity of O(n) for both indexOf and splice, leading to potentially inefficient performance for large arrays. Consider using a more efficient method for removing items, such as filtering the array, which can also achieve O(n) but with a single pass:

export function removeItem<T>(arr: T[], item: T) {
  return arr.filter(x => x !== item);
}

[codereviewbot-ai]

The closestItem function does not handle cases where the array has fewer than two elements, which could lead to accessing an undefined index and potentially cause runtime errors. It's important to add checks to ensure the array's length is sufficient before accessing elements by index:

export function closestItem<T>(arr: T[], item: T) {
  if (arr.length < 2) return null; // or handle as appropriate
  const index = arr.indexOf(item);
  if (index === -1) return arr[0];
  else if (index === arr.length - 1) return arr[arr.length - 2];
  else return arr[index + 1];
}

[codereviewbot-ai]

Using emojis as icons in allIngredients might limit accessibility and internationalization. Consider using image paths or SVGs instead, which can be more flexible and accessible. For example:

{ icon: '/path/to/tomato.svg', label: 'Tomato' }

This approach allows for better control over the presentation and accessibility features like alt text.

[codereviewbot-ai]

The getNextIngredient function returns undefined if all ingredients are already included in the input list. This behavior should be explicitly handled or documented to avoid potential runtime errors. Consider adding a check or a default return value to handle this scenario more gracefully. For example:

if (allIngredients.every(ingredient => existing.has(ingredient.label))) {
  return defaultIngredient; // or handle the case appropriately
}

[codereviewbot-ai]

The optional properties id, group, and forceRender in the LayoutGroupState interface could lead to runtime errors if other parts of the application assume these properties are always initialized. Consider ensuring these properties are either always provided or properly handled as optional throughout the application.

Recommended Solution:

• Ensure that any usage of LayoutGroupState properties checks for undefined before usage, or initialize them with default values where possible.

[codereviewbot-ai]

The function useInView accepts a domRef which is a Vue ref potentially containing a DOM element. However, there is no explicit error handling or validation to check if domRef is either null or does not contain a valid DOM element at the time of invocation. This can lead to runtime errors if domRef is not properly initialized.

Recommendation:
Add a validation step at the beginning of the function to check if domRef is valid and contains a DOM element. If not, either throw an error or handle this scenario gracefully to prevent further execution with invalid data.

[codereviewbot-ai]

The removeItem function uses indexOf to find the index of the item to be removed and splice to remove it. This approach has a time complexity of O(n) for both indexOf and splice, leading to potentially inefficient performance for large arrays. Consider using a more efficient method for removing items, such as filtering the array, which can also achieve O(n) complexity but with a simpler and potentially faster execution:

export function removeItem<T>(arr: T[], item: T): T[] {
  return arr.filter(x => x !== item);
}

[codereviewbot-ai]

The closestItem function does not handle cases where the array has fewer than two elements, which could lead to accessing undefined array elements and potentially cause runtime errors. It's important to add checks to ensure the array's length is sufficient before attempting to access its elements:

export function closestItem<T>(arr: T[], item: T): T | undefined {
  if (arr.length < 2) return undefined;
  const index = arr.indexOf(item);
  if (index === -1) return arr[0];
  else if (index === arr.length - 1) return arr[arr.length - 2];
  else return arr[index + 1];
}

[codereviewbot-ai]

The initialization of initialTabs directly depends on the order of elements in allIngredients, which can lead to errors if the array is modified (elements added, removed, or reordered). To improve robustness, consider using a more dynamic way of selecting initial tabs, such as filtering based on a property or explicitly specifying the desired elements by their properties to avoid dependency on array order.

Suggested Change:

export const initialTabs = allIngredients.filter(ingredient => ['Tomato', 'Lettuce', 'Cheese'].includes(ingredient.label));

[codereviewbot-ai]

The getNextIngredient function assumes that all ingredient labels are unique. If duplicate labels exist, this function may not behave as expected. To ensure the function's reliability, consider adding a mechanism to handle or explicitly forbid duplicate labels in the data structure, or modify the function to handle such cases.

Suggested Change:
Add a validation during the initialization of allIngredients to ensure all labels are unique or adjust the function to manage duplicates appropriately.