{"version":3,"sources":["../../src/use-dynamic-list/index.ts"],"sourcesContent":["import { useRef } from 'react'\nimport { useCreation } from '../use-creation'\nimport { useSafeState } from '../use-safe-state'\nimport { useStableFn } from '../use-stable-fn'\nimport { isDev, isFunction } from '../utils/basic'\n\nimport type { SetStateAction } from 'react'\nimport type { ReactSetState } from '../use-safe-state'\n\nexport interface UseDynamicListReturnsActions {\n /**\n * insert an item at the specified index\n */\n insert: (index: number, item: T) => void\n /**\n * merge items at the specified index\n */\n merge: (index: number, items: T[]) => void\n /**\n * replace an item at the specified index\n */\n replace: (index: number, item: T) => void\n /**\n * remove an item at the specified index\n */\n remove: (index: number) => void\n /**\n * get the key of the item at the specified index\n */\n getKey: (index: number) => number\n /**\n * get the index of the item with the specified key\n */\n getIndex: (key: number) => number\n /**\n * move an item from the old index to the new index\n */\n move: (oldIndex: number, newIndex: number) => void\n /**\n * push an item to the end of the list\n */\n push: (item: T) => void\n /**\n * pop an item from the end of the list\n */\n pop(): void\n /**\n * unshift an item to the start of the list\n */\n unshift: (item: T) => void\n /**\n * shift an item from the start of the list\n */\n shift(): void\n /**\n * sort the list in place\n */\n sort: (compare?: (pre: T, next: T) => number) => void\n /**\n * reset the list\n */\n reset: (newList: T[]) => void\n /**\n * set the list\n */\n setList: ReactSetState\n}\n\nexport type UseDynamicListReturns = readonly [\n /**\n * list of items\n */\n list: T[],\n UseDynamicListReturnsActions,\n]\n\n/**\n * A React Hook that helps to manage dynamic list of items.\n */\nexport function useDynamicList(initialList: T[] = []): UseDynamicListReturns {\n const listIdxRef = useRef(0)\n const keysRef = useRef([])\n\n function updateInternalKeyAt(index: number) {\n keysRef.current.splice(index, 0, listIdxRef.current++)\n }\n\n const [list, nativeSetList] = useSafeState(() => {\n initialList.forEach((_, index) => updateInternalKeyAt(index))\n return initialList\n })\n\n const reset = useStableFn((newList: T[]) => {\n keysRef.current.length = 0\n nativeSetList(() => {\n newList.forEach((_, index) => updateInternalKeyAt(index))\n return newList\n })\n })\n\n const insert = useStableFn((index: number, item: T) => {\n nativeSetList((list) => {\n const temp = [...list]\n temp.splice(index, 0, item)\n updateInternalKeyAt(index)\n return temp\n })\n })\n\n const getIndex = useStableFn((key: number) => keysRef.current.findIndex((ele) => ele === key))\n const getKey = useStableFn((index: number) => keysRef.current[index])\n\n const merge = useStableFn((index: number, items: T[]) => {\n nativeSetList((list) => {\n const temp = [...list]\n items.forEach((_, i) => updateInternalKeyAt(index + i))\n temp.splice(index, 0, ...items)\n return temp\n })\n })\n\n const replace = useStableFn((index: number, item: T) => {\n nativeSetList((list) => {\n const temp = [...list]\n temp[index] = item\n return temp\n })\n })\n\n const remove = useStableFn((index: number) => {\n nativeSetList((list) => {\n const temp = [...list]\n temp.splice(index, 1)\n try {\n keysRef.current.splice(index, 1)\n } catch (e) {\n if (isDev) console.error(e)\n }\n return temp\n })\n })\n\n const move = useStableFn((preIndex: number, nextIndex: number) => {\n if (preIndex === nextIndex) return\n nativeSetList((list) => {\n const newList = [...list]\n const temp = newList.filter((_, index: number) => index !== preIndex)\n temp.splice(nextIndex, 0, newList[preIndex])\n try {\n const keyTemp = keysRef.current.filter((_, index: number) => index !== preIndex)\n keyTemp.splice(nextIndex, 0, keysRef.current[preIndex])\n keysRef.current = keyTemp\n } catch (e) {\n if (isDev) console.error(e)\n }\n\n return temp\n })\n })\n\n const push = useStableFn((item: T) => {\n nativeSetList((list) => {\n updateInternalKeyAt(list.length)\n return list.concat([item])\n })\n })\n\n const pop = useStableFn(() => {\n try {\n keysRef.current = keysRef.current.slice(0, keysRef.current.length - 1)\n } catch (e) {\n if (isDev) console.error(e)\n }\n\n nativeSetList((list) => list.slice(0, list.length - 1))\n })\n\n const unshift = useStableFn((item: T) => {\n nativeSetList((list) => {\n updateInternalKeyAt(0)\n return [item].concat(list)\n })\n })\n\n const shift = useStableFn(() => {\n try {\n keysRef.current = keysRef.current.slice(1, keysRef.current.length)\n } catch (e) {\n if (isDev) console.error(e)\n }\n nativeSetList((list) => list.slice(1, list.length))\n })\n\n const sort = useStableFn((compare?: (pre: T, next: T) => number) => {\n nativeSetList((list) => {\n const temp = [...list]\n const result = temp.sort(compare)\n result.forEach((_, index) => updateInternalKeyAt(index))\n return result\n })\n })\n\n const setList = useStableFn((action: SetStateAction) => {\n nativeSetList((preList) => {\n const newList = isFunction(action) ? action(preList) : action\n newList.forEach((_, index) => updateInternalKeyAt(index))\n return newList\n })\n })\n\n const actions = useCreation(() => ({\n insert,\n merge,\n replace,\n remove,\n getKey,\n getIndex,\n move,\n push,\n pop,\n unshift,\n shift,\n sort,\n reset,\n setList,\n }))\n\n return [list, actions] as 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