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memo(getDeps, fn, opts) {\n  let deps = opts.initialDeps ?? [];\n  let result;\n  return () => {\n    var _a, _b, _c, _d;\n    let depTime;\n    if (opts.key && ((_a = opts.debug) == null ? void 0 : _a.call(opts))) depTime = Date.now();\n    const newDeps = getDeps();\n    const depsChanged = newDeps.length !== deps.length || newDeps.some((dep, index) => deps[index] !== dep);\n    if (!depsChanged) {\n      return result;\n    }\n    deps = newDeps;\n    let resultTime;\n    if (opts.key && ((_b = opts.debug) == null ? void 0 : _b.call(opts))) resultTime = Date.now();\n    result = fn(...newDeps);\n    if (opts.key && ((_c = opts.debug) == null ? void 0 : _c.call(opts))) {\n      const depEndTime = Math.round((Date.now() - depTime) * 100) / 100;\n      const resultEndTime = Math.round((Date.now() - resultTime) * 100) / 100;\n      const resultFpsPercentage = resultEndTime / 16;\n      const pad = (str, num) => {\n        str = String(str);\n        while (str.length < num) {\n          str = \" \" + str;\n        }\n        return str;\n      };\n      console.info(\n        `%c⏱ ${pad(resultEndTime, 5)} /${pad(depEndTime, 5)} ms`,\n        `\n            font-size: .6rem;\n            font-weight: bold;\n            color: hsl(${Math.max(\n          0,\n          Math.min(120 - 120 * resultFpsPercentage, 120)\n        )}deg 100% 31%);`,\n        opts == null ? void 0 : opts.key\n      );\n    }\n    (_d = opts == null ? void 0 : opts.onChange) == null ? void 0 : _d.call(opts, result);\n    return result;\n  };\n}\nfunction notUndefined(value, msg) {\n  if (value === void 0) {\n    throw new Error(`Unexpected undefined${msg ? `: ${msg}` : \"\"}`);\n  } else {\n    return value;\n  }\n}\nconst approxEqual = (a, b) => Math.abs(a - b) < 1;\nconst debounce = (targetWindow, fn, ms) => {\n  let timeoutId;\n  return function(...args) {\n    targetWindow.clearTimeout(timeoutId);\n    timeoutId = targetWindow.setTimeout(() => fn.apply(this, args), ms);\n  };\n};\nexport {\n  approxEqual,\n  debounce,\n  memo,\n  notUndefined\n};\n//# sourceMappingURL=utils.js.map\n","import { debounce, memo, notUndefined, approxEqual } from \"./utils.js\";\nconst defaultKeyExtractor = (index) => index;\nconst defaultRangeExtractor = (range) => {\n  const start = Math.max(range.startIndex - range.overscan, 0);\n  const end = Math.min(range.endIndex + range.overscan, range.count - 1);\n  const arr = [];\n  for (let i = start; i <= end; i++) {\n    arr.push(i);\n  }\n  return arr;\n};\nconst observeElementRect = (instance, cb) => {\n  const element = instance.scrollElement;\n  if (!element) {\n    return;\n  }\n  const targetWindow = instance.targetWindow;\n  if (!targetWindow) {\n    return;\n  }\n  const handler = (rect) => {\n    const { width, height } = rect;\n    cb({ width: Math.round(width), height: Math.round(height) });\n  };\n  handler(element.getBoundingClientRect());\n  if (!targetWindow.ResizeObserver) {\n    return () => {\n    };\n  }\n  const observer = new targetWindow.ResizeObserver((entries) => {\n    const run = () => {\n      const entry = entries[0];\n      if (entry == null ? void 0 : entry.borderBoxSize) {\n        const box = entry.borderBoxSize[0];\n        if (box) {\n          handler({ width: box.inlineSize, height: box.blockSize });\n          return;\n        }\n      }\n      handler(element.getBoundingClientRect());\n    };\n    instance.options.useAnimationFrameWithResizeObserver ? requestAnimationFrame(run) : run();\n  });\n  observer.observe(element, { box: \"border-box\" });\n  return () => {\n    observer.unobserve(element);\n  };\n};\nconst addEventListenerOptions = {\n  passive: true\n};\nconst observeWindowRect = (instance, cb) => {\n  const element = instance.scrollElement;\n  if (!element) {\n    return;\n  }\n  const handler = () => {\n    cb({ width: element.innerWidth, height: element.innerHeight });\n  };\n  handler();\n  element.addEventListener(\"resize\", handler, addEventListenerOptions);\n  return () => {\n    element.removeEventListener(\"resize\", handler);\n  };\n};\nconst supportsScrollend = typeof window == \"undefined\" ? true : \"onscrollend\" in window;\nconst observeElementOffset = (instance, cb) => {\n  const element = instance.scrollElement;\n  if (!element) {\n    return;\n  }\n  const targetWindow = instance.targetWindow;\n  if (!targetWindow) {\n    return;\n  }\n  let offset = 0;\n  const fallback = instance.options.useScrollendEvent && supportsScrollend ? () => void 0 : debounce(\n    targetWindow,\n    () => {\n      cb(offset, false);\n    },\n    instance.options.isScrollingResetDelay\n  );\n  const createHandler = (isScrolling) => () => {\n    const { horizontal, isRtl } = instance.options;\n    offset = horizontal ? element[\"scrollLeft\"] * (isRtl && -1 || 1) : element[\"scrollTop\"];\n    fallback();\n    cb(offset, isScrolling);\n  };\n  const handler = createHandler(true);\n  const endHandler = createHandler(false);\n  endHandler();\n  element.addEventListener(\"scroll\", handler, addEventListenerOptions);\n  const registerScrollendEvent = instance.options.useScrollendEvent && supportsScrollend;\n  if (registerScrollendEvent) {\n    element.addEventListener(\"scrollend\", endHandler, addEventListenerOptions);\n  }\n  return () => {\n    element.removeEventListener(\"scroll\", handler);\n    if (registerScrollendEvent) {\n      element.removeEventListener(\"scrollend\", endHandler);\n    }\n  };\n};\nconst observeWindowOffset = (instance, cb) => {\n  const element = instance.scrollElement;\n  if (!element) {\n    return;\n  }\n  const targetWindow = instance.targetWindow;\n  if (!targetWindow) {\n    return;\n  }\n  let offset = 0;\n  const fallback = instance.options.useScrollendEvent && supportsScrollend ? () => void 0 : debounce(\n    targetWindow,\n    () => {\n      cb(offset, false);\n    },\n    instance.options.isScrollingResetDelay\n  );\n  const createHandler = (isScrolling) => () => {\n    offset = element[instance.options.horizontal ? \"scrollX\" : \"scrollY\"];\n    fallback();\n    cb(offset, isScrolling);\n  };\n  const handler = createHandler(true);\n  const endHandler = createHandler(false);\n  endHandler();\n  element.addEventListener(\"scroll\", handler, addEventListenerOptions);\n  const registerScrollendEvent = instance.options.useScrollendEvent && supportsScrollend;\n  if (registerScrollendEvent) {\n    element.addEventListener(\"scrollend\", endHandler, addEventListenerOptions);\n  }\n  return () => {\n    element.removeEventListener(\"scroll\", handler);\n    if (registerScrollendEvent) {\n      element.removeEventListener(\"scrollend\", endHandler);\n    }\n  };\n};\nconst measureElement = (element, entry, instance) => {\n  if (entry == null ? void 0 : entry.borderBoxSize) {\n    const box = entry.borderBoxSize[0];\n    if (box) {\n      const size = Math.round(\n        box[instance.options.horizontal ? \"inlineSize\" : \"blockSize\"]\n      );\n      return size;\n    }\n  }\n  return Math.round(\n    element.getBoundingClientRect()[instance.options.horizontal ? \"width\" : \"height\"]\n  );\n};\nconst windowScroll = (offset, {\n  adjustments = 0,\n  behavior\n}, instance) => {\n  var _a, _b;\n  const toOffset = offset + adjustments;\n  (_b = (_a = instance.scrollElement) == null ? void 0 : _a.scrollTo) == null ? void 0 : _b.call(_a, {\n    [instance.options.horizontal ? \"left\" : \"top\"]: toOffset,\n    behavior\n  });\n};\nconst elementScroll = (offset, {\n  adjustments = 0,\n  behavior\n}, instance) => {\n  var _a, _b;\n  const toOffset = offset + adjustments;\n  (_b = (_a = instance.scrollElement) == null ? void 0 : _a.scrollTo) == null ? void 0 : _b.call(_a, {\n    [instance.options.horizontal ? \"left\" : \"top\"]: toOffset,\n    behavior\n  });\n};\nclass Virtualizer {\n  constructor(opts) {\n    this.unsubs = [];\n    this.scrollElement = null;\n    this.targetWindow = null;\n    this.isScrolling = false;\n    this.scrollToIndexTimeoutId = null;\n    this.measurementsCache = [];\n    this.itemSizeCache = /* @__PURE__ */ new Map();\n    this.pendingMeasuredCacheIndexes = [];\n    this.scrollRect = null;\n    this.scrollOffset = null;\n    this.scrollDirection = null;\n    this.scrollAdjustments = 0;\n    this.elementsCache = /* @__PURE__ */ new Map();\n    this.observer = /* @__PURE__ */ (() => {\n      let _ro = null;\n      const get = () => {\n        if (_ro) {\n          return _ro;\n        }\n        if (!this.targetWindow || !this.targetWindow.ResizeObserver) {\n          return null;\n        }\n        return _ro = new this.targetWindow.ResizeObserver((entries) => {\n          entries.forEach((entry) => {\n            const run = () => {\n              this._measureElement(entry.target, entry);\n            };\n            this.options.useAnimationFrameWithResizeObserver ? requestAnimationFrame(run) : run();\n          });\n        });\n      };\n      return {\n        disconnect: () => {\n          var _a;\n          (_a = get()) == null ? void 0 : _a.disconnect();\n          _ro = null;\n        },\n        observe: (target) => {\n          var _a;\n          return (_a = get()) == null ? void 0 : _a.observe(target, { box: \"border-box\" });\n        },\n        unobserve: (target) => {\n          var _a;\n          return (_a = get()) == null ? void 0 : _a.unobserve(target);\n        }\n      };\n    })();\n    this.range = null;\n    this.setOptions = (opts2) => {\n      Object.entries(opts2).forEach(([key, value]) => {\n        if (typeof value === \"undefined\") delete opts2[key];\n      });\n      this.options = {\n        debug: false,\n        initialOffset: 0,\n        overscan: 1,\n        paddingStart: 0,\n        paddingEnd: 0,\n        scrollPaddingStart: 0,\n        scrollPaddingEnd: 0,\n        horizontal: false,\n        getItemKey: defaultKeyExtractor,\n        rangeExtractor: defaultRangeExtractor,\n        onChange: () => {\n        },\n        measureElement,\n        initialRect: { width: 0, height: 0 },\n        scrollMargin: 0,\n        gap: 0,\n        indexAttribute: \"data-index\",\n        initialMeasurementsCache: [],\n        lanes: 1,\n        isScrollingResetDelay: 150,\n        enabled: true,\n        isRtl: false,\n        useScrollendEvent: true,\n        useAnimationFrameWithResizeObserver: false,\n        ...opts2\n      };\n    };\n    this.notify = (sync) => {\n      var _a, _b;\n      (_b = (_a = this.options).onChange) == null ? void 0 : _b.call(_a, this, sync);\n    };\n    this.maybeNotify = memo(\n      () => {\n        this.calculateRange();\n        return [\n          this.isScrolling,\n          this.range ? this.range.startIndex : null,\n          this.range ? this.range.endIndex : null\n        ];\n      },\n      (isScrolling) => {\n        this.notify(isScrolling);\n      },\n      {\n        key: process.env.NODE_ENV !== \"production\" && \"maybeNotify\",\n        debug: () => this.options.debug,\n        initialDeps: [\n          this.isScrolling,\n          this.range ? this.range.startIndex : null,\n          this.range ? this.range.endIndex : null\n        ]\n      }\n    );\n    this.cleanup = () => {\n      this.unsubs.filter(Boolean).forEach((d) => d());\n      this.unsubs = [];\n      this.observer.disconnect();\n      this.scrollElement = null;\n      this.targetWindow = null;\n    };\n    this._didMount = () => {\n      return () => {\n        this.cleanup();\n      };\n    };\n    this._willUpdate = () => {\n      var _a;\n      const scrollElement = this.options.enabled ? this.options.getScrollElement() : null;\n      if (this.scrollElement !== scrollElement) {\n        this.cleanup();\n        if (!scrollElement) {\n          this.maybeNotify();\n          return;\n        }\n        this.scrollElement = scrollElement;\n        if (this.scrollElement && \"ownerDocument\" in this.scrollElement) {\n          this.targetWindow = this.scrollElement.ownerDocument.defaultView;\n        } else {\n          this.targetWindow = ((_a = this.scrollElement) == null ? void 0 : _a.window) ?? null;\n        }\n        this.elementsCache.forEach((cached) => {\n          this.observer.observe(cached);\n        });\n        this._scrollToOffset(this.getScrollOffset(), {\n          adjustments: void 0,\n          behavior: void 0\n        });\n        this.unsubs.push(\n          this.options.observeElementRect(this, (rect) => {\n            this.scrollRect = rect;\n            this.maybeNotify();\n          })\n        );\n        this.unsubs.push(\n          this.options.observeElementOffset(this, (offset, isScrolling) => {\n            this.scrollAdjustments = 0;\n            this.scrollDirection = isScrolling ? this.getScrollOffset() < offset ? \"forward\" : \"backward\" : null;\n            this.scrollOffset = offset;\n            this.isScrolling = isScrolling;\n            this.maybeNotify();\n          })\n        );\n      }\n    };\n    this.getSize = () => {\n      if (!this.options.enabled) {\n        this.scrollRect = null;\n        return 0;\n      }\n      this.scrollRect = this.scrollRect ?? this.options.initialRect;\n      return this.scrollRect[this.options.horizontal ? \"width\" : \"height\"];\n    };\n    this.getScrollOffset = () => {\n      if (!this.options.enabled) {\n        this.scrollOffset = null;\n        return 0;\n      }\n      this.scrollOffset = this.scrollOffset ?? (typeof this.options.initialOffset === \"function\" ? this.options.initialOffset() : this.options.initialOffset);\n      return this.scrollOffset;\n    };\n    this.getFurthestMeasurement = (measurements, index) => {\n      const furthestMeasurementsFound = /* @__PURE__ */ new Map();\n      const furthestMeasurements = /* @__PURE__ */ new Map();\n      for (let m = index - 1; m >= 0; m--) {\n        const measurement = measurements[m];\n        if (furthestMeasurementsFound.has(measurement.lane)) {\n          continue;\n        }\n        const previousFurthestMeasurement = furthestMeasurements.get(\n          measurement.lane\n        );\n        if (previousFurthestMeasurement == null || measurement.end > previousFurthestMeasurement.end) {\n          furthestMeasurements.set(measurement.lane, measurement);\n        } else if (measurement.end < previousFurthestMeasurement.end) {\n          furthestMeasurementsFound.set(measurement.lane, true);\n        }\n        if (furthestMeasurementsFound.size === this.options.lanes) {\n          break;\n        }\n      }\n      return furthestMeasurements.size === this.options.lanes ? Array.from(furthestMeasurements.values()).sort((a, b) => {\n        if (a.end === b.end) {\n          return a.index - b.index;\n        }\n        return a.end - b.end;\n      })[0] : void 0;\n    };\n    this.getMeasurementOptions = memo(\n      () => [\n        this.options.count,\n        this.options.paddingStart,\n        this.options.scrollMargin,\n        this.options.getItemKey,\n        this.options.enabled\n      ],\n      (count, paddingStart, scrollMargin, getItemKey, enabled) => {\n        this.pendingMeasuredCacheIndexes = [];\n        return {\n          count,\n          paddingStart,\n          scrollMargin,\n          getItemKey,\n          enabled\n        };\n      },\n      {\n        key: false\n      }\n    );\n    this.getMeasurements = memo(\n      () => [this.getMeasurementOptions(), this.itemSizeCache],\n      ({ count, paddingStart, scrollMargin, getItemKey, enabled }, itemSizeCache) => {\n        if (!enabled) {\n          this.measurementsCache = [];\n          this.itemSizeCache.clear();\n          return [];\n        }\n        if (this.measurementsCache.length === 0) {\n          this.measurementsCache = this.options.initialMeasurementsCache;\n          this.measurementsCache.forEach((item) => {\n            this.itemSizeCache.set(item.key, item.size);\n          });\n        }\n        const min = this.pendingMeasuredCacheIndexes.length > 0 ? Math.min(...this.pendingMeasuredCacheIndexes) : 0;\n        this.pendingMeasuredCacheIndexes = [];\n        const measurements = this.measurementsCache.slice(0, min);\n        for (let i = min; i < count; i++) {\n          const key = getItemKey(i);\n          const furthestMeasurement = this.options.lanes === 1 ? measurements[i - 1] : this.getFurthestMeasurement(measurements, i);\n          const start = furthestMeasurement ? furthestMeasurement.end + this.options.gap : paddingStart + scrollMargin;\n          const measuredSize = itemSizeCache.get(key);\n          const size = typeof measuredSize === \"number\" ? measuredSize : this.options.estimateSize(i);\n          const end = start + size;\n          const lane = furthestMeasurement ? furthestMeasurement.lane : i % this.options.lanes;\n          measurements[i] = {\n            index: i,\n            start,\n            size,\n            end,\n            key,\n            lane\n          };\n        }\n        this.measurementsCache = measurements;\n        return measurements;\n      },\n      {\n        key: process.env.NODE_ENV !== \"production\" && \"getMeasurements\",\n        debug: () => this.options.debug\n      }\n    );\n    this.calculateRange = memo(\n      () => [this.getMeasurements(), this.getSize(), this.getScrollOffset()],\n      (measurements, outerSize, scrollOffset) => {\n        return this.range = measurements.length > 0 && outerSize > 0 ? calculateRange({\n          measurements,\n          outerSize,\n          scrollOffset\n        }) : null;\n      },\n      {\n        key: process.env.NODE_ENV !== \"production\" && \"calculateRange\",\n        debug: () => this.options.debug\n      }\n    );\n    this.getVirtualIndexes = memo(\n      () => {\n        let startIndex = null;\n        let endIndex = null;\n        const range = this.calculateRange();\n        if (range) {\n          startIndex = range.startIndex;\n          endIndex = range.endIndex;\n        }\n        return [\n          this.options.rangeExtractor,\n          this.options.overscan,\n          this.options.count,\n          startIndex,\n          endIndex\n        ];\n      },\n      (rangeExtractor, overscan, count, startIndex, endIndex) => {\n        return startIndex === null || endIndex === null ? [] : rangeExtractor({\n          startIndex,\n          endIndex,\n          overscan,\n          count\n        });\n      },\n      {\n        key: process.env.NODE_ENV !== \"production\" && \"getVirtualIndexes\",\n        debug: () => this.options.debug\n      }\n    );\n    this.indexFromElement = (node) => {\n      const attributeName = this.options.indexAttribute;\n      const indexStr = node.getAttribute(attributeName);\n      if (!indexStr) {\n        console.warn(\n          `Missing attribute name '${attributeName}={index}' on measured element.`\n        );\n        return -1;\n      }\n      return parseInt(indexStr, 10);\n    };\n    this._measureElement = (node, entry) => {\n      const index = this.indexFromElement(node);\n      const item = this.measurementsCache[index];\n      if (!item) {\n        return;\n      }\n      const key = item.key;\n      const prevNode = this.elementsCache.get(key);\n      if (prevNode !== node) {\n        if (prevNode) {\n          this.observer.unobserve(prevNode);\n        }\n        this.observer.observe(node);\n        this.elementsCache.set(key, node);\n      }\n      if (node.isConnected) {\n        this.resizeItem(index, this.options.measureElement(node, entry, this));\n      }\n    };\n    this.resizeItem = (index, size) => {\n      const item = this.measurementsCache[index];\n      if (!item) {\n        return;\n      }\n      const itemSize = this.itemSizeCache.get(item.key) ?? item.size;\n      const delta = size - itemSize;\n      if (delta !== 0) {\n        if (this.shouldAdjustScrollPositionOnItemSizeChange !== void 0 ? this.shouldAdjustScrollPositionOnItemSizeChange(item, delta, this) : item.start < this.getScrollOffset() + this.scrollAdjustments) {\n          if (process.env.NODE_ENV !== \"production\" && this.options.debug) {\n            console.info(\"correction\", delta);\n          }\n          this._scrollToOffset(this.getScrollOffset(), {\n            adjustments: this.scrollAdjustments += delta,\n            behavior: void 0\n          });\n        }\n        this.pendingMeasuredCacheIndexes.push(item.index);\n        this.itemSizeCache = new Map(this.itemSizeCache.set(item.key, size));\n        this.notify(false);\n      }\n    };\n    this.measureElement = (node) => {\n      if (!node) {\n        this.elementsCache.forEach((cached, key) => {\n          if (!cached.isConnected) {\n            this.observer.unobserve(cached);\n            this.elementsCache.delete(key);\n          }\n        });\n        return;\n      }\n      this._measureElement(node, void 0);\n    };\n    this.getVirtualItems = memo(\n      () => [this.getVirtualIndexes(), this.getMeasurements()],\n      (indexes, measurements) => {\n        const virtualItems = [];\n        for (let k = 0, len = indexes.length; k < len; k++) {\n          const i = indexes[k];\n          const measurement = measurements[i];\n          virtualItems.push(measurement);\n        }\n        return virtualItems;\n      },\n      {\n        key: process.env.NODE_ENV !== \"production\" && \"getVirtualItems\",\n        debug: () => this.options.debug\n      }\n    );\n    this.getVirtualItemForOffset = (offset) => {\n      const measurements = this.getMeasurements();\n      if (measurements.length === 0) {\n        return void 0;\n      }\n      return notUndefined(\n        measurements[findNearestBinarySearch(\n          0,\n          measurements.length - 1,\n          (index) => notUndefined(measurements[index]).start,\n          offset\n        )]\n      );\n    };\n    this.getOffsetForAlignment = (toOffset, align) => {\n      const size = this.getSize();\n      const scrollOffset = this.getScrollOffset();\n      if (align === \"auto\") {\n        if (toOffset >= scrollOffset + size) {\n          align = \"end\";\n        }\n      }\n      if (align === \"end\") {\n        toOffset -= size;\n      }\n      const scrollSizeProp = this.options.horizontal ? \"scrollWidth\" : \"scrollHeight\";\n      const scrollSize = this.scrollElement ? \"document\" in this.scrollElement ? this.scrollElement.document.documentElement[scrollSizeProp] : this.scrollElement[scrollSizeProp] : 0;\n      const maxOffset = scrollSize - size;\n      return Math.max(Math.min(maxOffset, toOffset), 0);\n    };\n    this.getOffsetForIndex = (index, align = \"auto\") => {\n      index = Math.max(0, Math.min(index, this.options.count - 1));\n      const item = this.measurementsCache[index];\n      if (!item) {\n        return void 0;\n      }\n      const size = this.getSize();\n      const scrollOffset = this.getScrollOffset();\n      if (align === \"auto\") {\n        if (item.end >= scrollOffset + size - this.options.scrollPaddingEnd) {\n          align = \"end\";\n        } else if (item.start <= scrollOffset + this.options.scrollPaddingStart) {\n          align = \"start\";\n        } else {\n          return [scrollOffset, align];\n        }\n      }\n      const centerOffset = item.start - this.options.scrollPaddingStart + (item.size - size) / 2;\n      switch (align) {\n        case \"center\":\n          return [this.getOffsetForAlignment(centerOffset, align), align];\n        case \"end\":\n          return [\n            this.getOffsetForAlignment(\n              item.end + this.options.scrollPaddingEnd,\n              align\n            ),\n            align\n          ];\n        default:\n          return [\n            this.getOffsetForAlignment(\n              item.start - this.options.scrollPaddingStart,\n              align\n            ),\n            align\n          ];\n      }\n    };\n    this.isDynamicMode = () => this.elementsCache.size > 0;\n    this.cancelScrollToIndex = () => {\n      if (this.scrollToIndexTimeoutId !== null && this.targetWindow) {\n        this.targetWindow.clearTimeout(this.scrollToIndexTimeoutId);\n        this.scrollToIndexTimeoutId = null;\n      }\n    };\n    this.scrollToOffset = (toOffset, { align = \"start\", behavior } = {}) => {\n      this.cancelScrollToIndex();\n      if (behavior === \"smooth\" && this.isDynamicMode()) {\n        console.warn(\n          \"The `smooth` scroll behavior is not fully supported with dynamic size.\"\n        );\n      }\n      this._scrollToOffset(this.getOffsetForAlignment(toOffset, align), {\n        adjustments: void 0,\n        behavior\n      });\n    };\n    this.scrollToIndex = (index, { align: initialAlign = \"auto\", behavior } = {}) => {\n      index = Math.max(0, Math.min(index, this.options.count - 1));\n      this.cancelScrollToIndex();\n      if (behavior === \"smooth\" && this.isDynamicMode()) {\n        console.warn(\n          \"The `smooth` scroll behavior is not fully supported with dynamic size.\"\n        );\n      }\n      const offsetAndAlign = this.getOffsetForIndex(index, initialAlign);\n      if (!offsetAndAlign) return;\n      const [offset, align] = offsetAndAlign;\n      this._scrollToOffset(offset, { adjustments: void 0, behavior });\n      if (behavior !== \"smooth\" && this.isDynamicMode() && this.targetWindow) {\n        this.scrollToIndexTimeoutId = this.targetWindow.setTimeout(() => {\n          this.scrollToIndexTimeoutId = null;\n          const elementInDOM = this.elementsCache.has(\n            this.options.getItemKey(index)\n          );\n          if (elementInDOM) {\n            const [latestOffset] = notUndefined(\n              this.getOffsetForIndex(index, align)\n            );\n            if (!approxEqual(latestOffset, this.getScrollOffset())) {\n              this.scrollToIndex(index, { align, behavior });\n            }\n          } else {\n            this.scrollToIndex(index, { align, behavior });\n          }\n        });\n      }\n    };\n    this.scrollBy = (delta, { behavior } = {}) => {\n      this.cancelScrollToIndex();\n      if (behavior === \"smooth\" && this.isDynamicMode()) {\n        console.warn(\n          \"The `smooth` scroll behavior is not fully supported with dynamic size.\"\n        );\n      }\n      this._scrollToOffset(this.getScrollOffset() + delta, {\n        adjustments: void 0,\n        behavior\n      });\n    };\n    this.getTotalSize = () => {\n      var _a;\n      const measurements = this.getMeasurements();\n      let end;\n      if (measurements.length === 0) {\n        end = this.options.paddingStart;\n      } else {\n        end = this.options.lanes === 1 ? ((_a = measurements[measurements.length - 1]) == null ? void 0 : _a.end) ?? 0 : Math.max(\n          ...measurements.slice(-this.options.lanes).map((m) => m.end)\n        );\n      }\n      return Math.max(\n        end - this.options.scrollMargin + this.options.paddingEnd,\n        0\n      );\n    };\n    this._scrollToOffset = (offset, {\n      adjustments,\n      behavior\n    }) => {\n      this.options.scrollToFn(offset, { behavior, adjustments }, this);\n    };\n    this.measure = () => {\n      this.itemSizeCache = /* @__PURE__ */ new Map();\n      this.notify(false);\n    };\n    this.setOptions(opts);\n  }\n}\nconst findNearestBinarySearch = (low, high, getCurrentValue, value) => {\n  while (low <= high) {\n    const middle = (low + high) / 2 | 0;\n    const currentValue = getCurrentValue(middle);\n    if (currentValue < value) {\n      low = middle + 1;\n    } else if (currentValue > value) {\n      high = middle - 1;\n    } else {\n      return middle;\n    }\n  }\n  if (low > 0) {\n    return low - 1;\n  } else {\n    return 0;\n  }\n};\nfunction calculateRange({\n  measurements,\n  outerSize,\n  scrollOffset\n}) {\n  const count = measurements.length - 1;\n  const getOffset = (index) => measurements[index].start;\n  const startIndex = findNearestBinarySearch(0, count, getOffset, scrollOffset);\n  let endIndex = startIndex;\n  while (endIndex < count && measurements[endIndex].end < scrollOffset + outerSize) {\n    endIndex++;\n  }\n  return { startIndex, endIndex };\n}\nexport {\n  Virtualizer,\n  approxEqual,\n  debounce,\n  defaultKeyExtractor,\n  defaultRangeExtractor,\n  elementScroll,\n  measureElement,\n  memo,\n  notUndefined,\n  observeElementOffset,\n  observeElementRect,\n  observeWindowOffset,\n  observeWindowRect,\n  windowScroll\n};\n//# sourceMappingURL=index.js.map\n","import * as React from \"react\";\nimport { flushSync } from \"react-dom\";\nimport { observeElementRect, observeElementOffset, elementScroll, observeWindowRect, observeWindowOffset, windowScroll, Virtualizer } from \"@tanstack/virtual-core\";\nexport * from \"@tanstack/virtual-core\";\nconst useIsomorphicLayoutEffect = typeof document !== \"undefined\" ? React.useLayoutEffect : React.useEffect;\nfunction useVirtualizerBase(options) {\n  const rerender = React.useReducer(() => ({}), {})[1];\n  const resolvedOptions = {\n    ...options,\n    onChange: (instance2, sync) => {\n      var _a;\n      if (sync) {\n        flushSync(rerender);\n      } else {\n        rerender();\n      }\n      (_a = options.onChange) == null ? void 0 : _a.call(options, instance2, sync);\n    }\n  };\n  const [instance] = React.useState(\n    () => new Virtualizer(resolvedOptions)\n  );\n  instance.setOptions(resolvedOptions);\n  useIsomorphicLayoutEffect(() => {\n    return instance._didMount();\n  }, []);\n  useIsomorphicLayoutEffect(() => {\n    return instance._willUpdate();\n  });\n  return instance;\n}\nfunction useVirtualizer(options) {\n  return useVirtualizerBase({\n    observeElementRect,\n    observeElementOffset,\n    scrollToFn: elementScroll,\n    ...options\n  });\n}\nfunction useWindowVirtualizer(options) {\n  return useVirtualizerBase({\n    getScrollElement: () => typeof document !== \"undefined\" ? window : null,\n    observeElementRect: observeWindowRect,\n    observeElementOffset: observeWindowOffset,\n    scrollToFn: windowScroll,\n    initialOffset: () => typeof document !== \"undefined\" ? window.scrollY : 0,\n    ...options\n  });\n}\nexport {\n  useVirtualizer,\n  useWindowVirtualizer\n};\n//# sourceMappingURL=index.js.map\n"],"names":[],"sourceRoot":""}