{
  "version": 3,
  "sources": ["../../../../src/specialized-waitables/use-softened-waitable/use-softened-waitable.ts"],
  "sourcesContent": ["import { useRef } from 'react';\nimport type { EmptyObject } from 'react-bindings';\n\nimport { concatArrays, normalizeAsOptionalArray } from '../../internal-utils/array-like.mjs';\nimport type { Waitable } from '../../waitable/types/waitable';\nimport { useDerivedWaitable } from '../use-derived-waitable/use-derived-waitable.mjs';\nimport type { UseSoftenedWaitableArgs } from './types';\n\n/**\n * Derives a waitable from another waitable where the last known value of the original waitable is remembered until a new value is\n * available.  This is useful for async waitables that are frequently reset where the last known value is good enough, for display purposes\n * for example.\n *\n * Hard resets on the softened waitable clear out the remembered values.\n */\nexport const useSoftenedWaitable = <SuccessT, FailureT, ExtraFieldsT extends object = EmptyObject>(\n  originalWaitable: Waitable<SuccessT, FailureT> | undefined,\n  args: UseSoftenedWaitableArgs<SuccessT, FailureT, ExtraFieldsT>\n) => {\n  const lastSuccess = useRef<SuccessT | undefined>(undefined);\n  const lastFailure = useRef<FailureT | undefined>(undefined);\n\n  const softenedWaitable = useDerivedWaitable(\n    undefined,\n    (_dependencyValues, _dependencies, setFailure): SuccessT | undefined => {\n      const value = originalWaitable?.value.get();\n      const error = originalWaitable?.error.get();\n      if (value !== undefined) {\n        lastFailure.current = undefined;\n        lastSuccess.current = value;\n        return value;\n      } else if (error !== undefined) {\n        lastFailure.current = error;\n        lastSuccess.current = undefined;\n        setFailure(error);\n        return undefined;\n      } else if (lastSuccess.current !== undefined) {\n        return lastSuccess.current;\n      } else if (lastFailure.current !== undefined) {\n        setFailure(lastFailure.current);\n        return undefined;\n      } else {\n        return undefined;\n      }\n    },\n    {\n      ...args,\n      defaultValue: () => originalWaitable?.value.get(),\n      limitType: 'none',\n      softResetBindings: concatArrays([originalWaitable?.isComplete], normalizeAsOptionalArray(args.softResetBindings)),\n      onReset: (resetType) => {\n        if (resetType === 'hard') {\n          lastFailure.current = undefined;\n          lastSuccess.current = undefined;\n        }\n\n        args.onReset?.(resetType);\n      }\n    }\n  );\n  return softenedWaitable;\n};\n"],
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