StructuredDiff.tsx

Full source

import { c as _c } from "react/compiler-runtime";
import type { StructuredPatchHunk } from 'diff';
import * as React from 'react';
import { memo } from 'react';
import { useSettings } from '../hooks/useSettings.js';
import { Box, NoSelect, RawAnsi, useTheme } from '../ink.js';
import { isFullscreenEnvEnabled } from '../utils/fullscreen.js';
import sliceAnsi from '../utils/sliceAnsi.js';
import { expectColorDiff } from './StructuredDiff/colorDiff.js';
import { StructuredDiffFallback } from './StructuredDiff/Fallback.js';
type Props = {
  patch: StructuredPatchHunk;
  dim: boolean;
  filePath: string; // File path for language detection
  firstLine: string | null; // First line of file for shebang detection
  fileContent?: string; // Full file content for syntax context (multiline strings, etc.)
  width: number;
  skipHighlighting?: boolean; // Skip syntax highlighting
};

// REPL.tsx renders <Messages> at two disjoint tree positions (transcript
// early-return vs prompt-mode nested in FullscreenLayout), so ctrl+o
// unmounts/remounts the entire message tree and React's memo cache is lost.
// Keep both the NAPI result AND the pre-split gutter/content columns at
// module level so the only work on remount is a WeakMap lookup plus two
// <ink-raw-ansi> leaves — not a fresh syntax highlight, nor N sliceAnsi
// calls + 6N Yoga nodes.
//
// PR #21439 (fullscreen default-on) made gutterWidth>0 the default path,
// reactivating the per-line <DiffLine> branch that PR #20378 had bypassed.
// Caching the split here restores the O(1)-leaves-per-diff invariant.
type CachedRender = {
  lines: string[];
  // Two RawAnsi columns replace what was N DiffLine rows. sliceAnsi work
  // moves from per-remount to cold-cache-only; parseToSpans is eliminated
  // entirely (RawAnsi bypasses Ansi parsing).
  gutterWidth: number;
  gutters: string[] | null;
  contents: string[] | null;
};
const RENDER_CACHE = new WeakMap<StructuredPatchHunk, Map<string, CachedRender>>();

// Gutter width matches the Rust module's layout: marker (1) + space +
// right-aligned line number (max_digits) + space. Depends only on patch
// identity (the WeakMap key), so it's cacheable alongside the NAPI output.
function computeGutterWidth(patch: StructuredPatchHunk): number {
  const maxLineNumber = Math.max(patch.oldStart + patch.oldLines - 1, patch.newStart + patch.newLines - 1, 1);
  return maxLineNumber.toString().length + 3; // marker + 2 padding spaces
}
function renderColorDiff(patch: StructuredPatchHunk, firstLine: string | null, filePath: string, fileContent: string | null, theme: string, width: number, dim: boolean, splitGutter: boolean): CachedRender | null {
  const ColorDiff = expectColorDiff();
  if (!ColorDiff) return null;

  // Defensive: if the gutter would eat the whole render width (narrow
  // terminal), skip the split. Rust already wraps to `width` so the
  // single-column output stays correct; we just lose noSelect. Without
  // this, sliceAnsi(line, gutterWidth) would return empty content and
  // RawAnsi(width<=0) is untested.
  const rawGutterWidth = splitGutter ? computeGutterWidth(patch) : 0;
  const gutterWidth = rawGutterWidth > 0 && rawGutterWidth < width ? rawGutterWidth : 0;
  const key = `${theme}|${width}|${dim ? 1 : 0}|${gutterWidth}|${firstLine ?? ''}|${filePath}`;
  let perHunk = RENDER_CACHE.get(patch);
  const hit = perHunk?.get(key);
  if (hit) return hit;
  const lines = new ColorDiff(patch, firstLine, filePath, fileContent).render(theme, width, dim);
  if (lines === null) return null;

  // Pre-split the gutter column once (cold-cache). sliceAnsi preserves
  // styles across the cut; the Rust module already pads the gutter to
  // gutterWidth so the narrow RawAnsi column's width matches its cells.
  let gutters: string[] | null = null;
  let contents: string[] | null = null;
  if (gutterWidth > 0) {
    gutters = lines.map(l => sliceAnsi(l, 0, gutterWidth));
    contents = lines.map(l => sliceAnsi(l, gutterWidth));
  }
  const entry: CachedRender = {
    lines,
    gutterWidth,
    gutters,
    contents
  };
  if (!perHunk) {
    perHunk = new Map();
    RENDER_CACHE.set(patch, perHunk);
  }
  // Cap the inner map: width is part of the key, so terminal resize while a
  // diff is visible accumulates a full render copy per distinct width. Four
  // variants (two widths × dim on/off) covers the steady state; beyond that
  // the user is actively resizing and old widths are stale.
  if (perHunk.size >= 4) perHunk.clear();
  perHunk.set(key, entry);
  return entry;
}
export const StructuredDiff = memo(function StructuredDiff(t0) {
  const $ = _c(26);
  const {
    patch,
    dim,
    filePath,
    firstLine,
    fileContent,
    width,
    skipHighlighting: t1
  } = t0;
  const skipHighlighting = t1 === undefined ? false : t1;
  const [theme] = useTheme();
  const settings = useSettings();
  const syntaxHighlightingDisabled = settings.syntaxHighlightingDisabled ?? false;
  const safeWidth = Math.max(1, Math.floor(width));
  let t2;
  if ($[0] !== dim || $[1] !== fileContent || $[2] !== filePath || $[3] !== firstLine || $[4] !== patch || $[5] !== safeWidth || $[6] !== skipHighlighting || $[7] !== syntaxHighlightingDisabled || $[8] !== theme) {
    const splitGutter = isFullscreenEnvEnabled();
    t2 = skipHighlighting || syntaxHighlightingDisabled ? null : renderColorDiff(patch, firstLine, filePath, fileContent ?? null, theme, safeWidth, dim, splitGutter);
    $[0] = dim;
    $[1] = fileContent;
    $[2] = filePath;
    $[3] = firstLine;
    $[4] = patch;
    $[5] = safeWidth;
    $[6] = skipHighlighting;
    $[7] = syntaxHighlightingDisabled;
    $[8] = theme;
    $[9] = t2;
  } else {
    t2 = $[9];
  }
  const cached = t2;
  if (!cached) {
    let t3;
    if ($[10] !== dim || $[11] !== patch || $[12] !== width) {
      t3 = <Box><StructuredDiffFallback patch={patch} dim={dim} width={width} /></Box>;
      $[10] = dim;
      $[11] = patch;
      $[12] = width;
      $[13] = t3;
    } else {
      t3 = $[13];
    }
    return t3;
  }
  const {
    lines,
    gutterWidth,
    gutters,
    contents
  } = cached;
  if (gutterWidth > 0 && gutters && contents) {
    let t3;
    if ($[14] !== gutterWidth || $[15] !== gutters) {
      t3 = <NoSelect fromLeftEdge={true}><RawAnsi lines={gutters} width={gutterWidth} /></NoSelect>;
      $[14] = gutterWidth;
      $[15] = gutters;
      $[16] = t3;
    } else {
      t3 = $[16];
    }
    const t4 = safeWidth - gutterWidth;
    let t5;
    if ($[17] !== contents || $[18] !== t4) {
      t5 = <RawAnsi lines={contents} width={t4} />;
      $[17] = contents;
      $[18] = t4;
      $[19] = t5;
    } else {
      t5 = $[19];
    }
    let t6;
    if ($[20] !== t3 || $[21] !== t5) {
      t6 = <Box flexDirection="row">{t3}{t5}</Box>;
      $[20] = t3;
      $[21] = t5;
      $[22] = t6;
    } else {
      t6 = $[22];
    }
    return t6;
  }
  let t3;
  if ($[23] !== lines || $[24] !== safeWidth) {
    t3 = <Box><RawAnsi lines={lines} width={safeWidth} /></Box>;
    $[23] = lines;
    $[24] = safeWidth;
    $[25] = t3;
  } else {
    t3 = $[25];
  }
  return t3;
});
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["StructuredPatchHunk","React","memo","useSettings","Box","NoSelect","RawAnsi","useTheme","isFullscreenEnvEnabled","sliceAnsi","expectColorDiff","StructuredDiffFallback","Props","patch","dim","filePath","firstLine","fileContent","width","skipHighlighting","CachedRender","lines","gutterWidth","gutters","contents","RENDER_CACHE","WeakMap","Map","computeGutterWidth","maxLineNumber","Math","max","oldStart","oldLines","newStart","newLines","toString","length","renderColorDiff","theme","splitGutter","ColorDiff","rawGutterWidth","key","perHunk","get","hit","render","map","l","entry","set","size","clear","StructuredDiff","t0","$","_c","t1","undefined","settings","syntaxHighlightingDisabled","safeWidth","floor","t2","cached","t3","t4","t5","t6"],"sources":["StructuredDiff.tsx"],"sourcesContent":["import type { StructuredPatchHunk } from 'diff'\nimport * as React from 'react'\nimport { memo } from 'react'\nimport { useSettings } from '../hooks/useSettings.js'\nimport { Box, NoSelect, RawAnsi, useTheme } from '../ink.js'\nimport { isFullscreenEnvEnabled } from '../utils/fullscreen.js'\nimport sliceAnsi from '../utils/sliceAnsi.js'\nimport { expectColorDiff } from './StructuredDiff/colorDiff.js'\nimport { StructuredDiffFallback } from './StructuredDiff/Fallback.js'\n\ntype Props = {\n  patch: StructuredPatchHunk\n  dim: boolean\n  filePath: string // File path for language detection\n  firstLine: string | null // First line of file for shebang detection\n  fileContent?: string // Full file content for syntax context (multiline strings, etc.)\n  width: number\n  skipHighlighting?: boolean // Skip syntax highlighting\n}\n\n// REPL.tsx renders <Messages> at two disjoint tree positions (transcript\n// early-return vs prompt-mode nested in FullscreenLayout), so ctrl+o\n// unmounts/remounts the entire message tree and React's memo cache is lost.\n// Keep both the NAPI result AND the pre-split gutter/content columns at\n// module level so the only work on remount is a WeakMap lookup plus two\n// <ink-raw-ansi> leaves — not a fresh syntax highlight, nor N sliceAnsi\n// calls + 6N Yoga nodes.\n//\n// PR #21439 (fullscreen default-on) made gutterWidth>0 the default path,\n// reactivating the per-line <DiffLine> branch that PR #20378 had bypassed.\n// Caching the split here restores the O(1)-leaves-per-diff invariant.\ntype CachedRender = {\n  lines: string[]\n  // Two RawAnsi columns replace what was N DiffLine rows. sliceAnsi work\n  // moves from per-remount to cold-cache-only; parseToSpans is eliminated\n  // entirely (RawAnsi bypasses Ansi parsing).\n  gutterWidth: number\n  gutters: string[] | null\n  contents: string[] | null\n}\nconst RENDER_CACHE = new WeakMap<\n  StructuredPatchHunk,\n  Map<string, CachedRender>\n>()\n\n// Gutter width matches the Rust module's layout: marker (1) + space +\n// right-aligned line number (max_digits) + space. Depends only on patch\n// identity (the WeakMap key), so it's cacheable alongside the NAPI output.\nfunction computeGutterWidth(patch: StructuredPatchHunk): number {\n  const maxLineNumber = Math.max(\n    patch.oldStart + patch.oldLines - 1,\n    patch.newStart + patch.newLines - 1,\n    1,\n  )\n  return maxLineNumber.toString().length + 3 // marker + 2 padding spaces\n}\n\nfunction renderColorDiff(\n  patch: StructuredPatchHunk,\n  firstLine: string | null,\n  filePath: string,\n  fileContent: string | null,\n  theme: string,\n  width: number,\n  dim: boolean,\n  splitGutter: boolean,\n): CachedRender | null {\n  const ColorDiff = expectColorDiff()\n  if (!ColorDiff) return null\n\n  // Defensive: if the gutter would eat the whole render width (narrow\n  // terminal), skip the split. Rust already wraps to `width` so the\n  // single-column output stays correct; we just lose noSelect. Without\n  // this, sliceAnsi(line, gutterWidth) would return empty content and\n  // RawAnsi(width<=0) is untested.\n  const rawGutterWidth = splitGutter ? computeGutterWidth(patch) : 0\n  const gutterWidth =\n    rawGutterWidth > 0 && rawGutterWidth < width ? rawGutterWidth : 0\n\n  const key = `${theme}|${width}|${dim ? 1 : 0}|${gutterWidth}|${firstLine ?? ''}|${filePath}`\n\n  let perHunk = RENDER_CACHE.get(patch)\n  const hit = perHunk?.get(key)\n  if (hit) return hit\n\n  const lines = new ColorDiff(patch, firstLine, filePath, fileContent).render(\n    theme,\n    width,\n    dim,\n  )\n  if (lines === null) return null\n\n  // Pre-split the gutter column once (cold-cache). sliceAnsi preserves\n  // styles across the cut; the Rust module already pads the gutter to\n  // gutterWidth so the narrow RawAnsi column's width matches its cells.\n  let gutters: string[] | null = null\n  let contents: string[] | null = null\n  if (gutterWidth > 0) {\n    gutters = lines.map(l => sliceAnsi(l, 0, gutterWidth))\n    contents = lines.map(l => sliceAnsi(l, gutterWidth))\n  }\n\n  const entry: CachedRender = { lines, gutterWidth, gutters, contents }\n\n  if (!perHunk) {\n    perHunk = new Map()\n    RENDER_CACHE.set(patch, perHunk)\n  }\n  // Cap the inner map: width is part of the key, so terminal resize while a\n  // diff is visible accumulates a full render copy per distinct width. Four\n  // variants (two widths × dim on/off) covers the steady state; beyond that\n  // the user is actively resizing and old widths are stale.\n  if (perHunk.size >= 4) perHunk.clear()\n  perHunk.set(key, entry)\n  return entry\n}\n\nexport const StructuredDiff = memo(function StructuredDiff({\n  patch,\n  dim,\n  filePath,\n  firstLine,\n  fileContent,\n  width,\n  skipHighlighting = false,\n}: Props): React.ReactNode {\n  const [theme] = useTheme()\n  const settings = useSettings()\n  const syntaxHighlightingDisabled =\n    settings.syntaxHighlightingDisabled ?? false\n\n  // Ensure width is at least 1 to prevent crashes in the Rust NAPI module\n  // which expects u32 (can't handle negative numbers)\n  const safeWidth = Math.max(1, Math.floor(width))\n\n  // Only split out a noSelect gutter in fullscreen mode — terminal native\n  // selection is used otherwise and noSelect is meaningless. Both branches\n  // are now O(1) Yoga leaves per diff on remount (2 vs 1), so this gate\n  // only saves cold-cache sliceAnsi work when fullscreen is off.\n  const splitGutter = isFullscreenEnvEnabled()\n\n  const cached =\n    skipHighlighting || syntaxHighlightingDisabled\n      ? null\n      : renderColorDiff(\n          patch,\n          firstLine,\n          filePath,\n          fileContent ?? null,\n          theme,\n          safeWidth,\n          dim,\n          splitGutter,\n        )\n\n  if (!cached) {\n    return (\n      <Box>\n        <StructuredDiffFallback patch={patch} dim={dim} width={width} />\n      </Box>\n    )\n  }\n\n  const { lines, gutterWidth, gutters, contents } = cached\n\n  // Two-column layout: gutter (noSelect) + content. NoSelect marks the\n  // Box's computed bounds non-selectable; RawAnsi's measure func sets\n  // rawHeight=lines.length, so one tall leaf gets the same noSelect\n  // coverage N per-row Boxes would — without the per-row Yoga cost.\n  if (gutterWidth > 0 && gutters && contents) {\n    return (\n      <Box flexDirection=\"row\">\n        <NoSelect fromLeftEdge>\n          <RawAnsi lines={gutters} width={gutterWidth} />\n        </NoSelect>\n        <RawAnsi lines={contents} width={safeWidth - gutterWidth} />\n      </Box>\n    )\n  }\n\n  return (\n    <Box>\n      <RawAnsi lines={lines} width={safeWidth} />\n    </Box>\n  )\n})\n"],"mappings":";AAAA,cAAcA,mBAAmB,QAAQ,MAAM;AAC/C,OAAO,KAAKC,KAAK,MAAM,OAAO;AAC9B,SAASC,IAAI,QAAQ,OAAO;AAC5B,SAASC,WAAW,QAAQ,yBAAyB;AACrD,SAASC,GAAG,EAAEC,QAAQ,EAAEC,OAAO,EAAEC,QAAQ,QAAQ,WAAW;AAC5D,SAASC,sBAAsB,QAAQ,wBAAwB;AAC/D,OAAOC,SAAS,MAAM,uBAAuB;AAC7C,SAASC,eAAe,QAAQ,+BAA+B;AAC/D,SAASC,sBAAsB,QAAQ,8BAA8B;AAErE,KAAKC,KAAK,GAAG;EACXC,KAAK,EAAEb,mBAAmB;EAC1Bc,GAAG,EAAE,OAAO;EACZC,QAAQ,EAAE,MAAM,EAAC;EACjBC,SAAS,EAAE,MAAM,GAAG,IAAI,EAAC;EACzBC,WAAW,CAAC,EAAE,MAAM,EAAC;EACrBC,KAAK,EAAE,MAAM;EACbC,gBAAgB,CAAC,EAAE,OAAO,EAAC;AAC7B,CAAC;;AAED;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,KAAKC,YAAY,GAAG;EAClBC,KAAK,EAAE,MAAM,EAAE;EACf;EACA;EACA;EACAC,WAAW,EAAE,MAAM;EACnBC,OAAO,EAAE,MAAM,EAAE,GAAG,IAAI;EACxBC,QAAQ,EAAE,MAAM,EAAE,GAAG,IAAI;AAC3B,CAAC;AACD,MAAMC,YAAY,GAAG,IAAIC,OAAO,CAC9B1B,mBAAmB,EACnB2B,GAAG,CAAC,MAAM,EAAEP,YAAY,CAAC,CAC1B,CAAC,CAAC;;AAEH;AACA;AACA;AACA,SAASQ,kBAAkBA,CAACf,KAAK,EAAEb,mBAAmB,CAAC,EAAE,MAAM,CAAC;EAC9D,MAAM6B,aAAa,GAAGC,IAAI,CAACC,GAAG,CAC5BlB,KAAK,CAACmB,QAAQ,GAAGnB,KAAK,CAACoB,QAAQ,GAAG,CAAC,EACnCpB,KAAK,CAACqB,QAAQ,GAAGrB,KAAK,CAACsB,QAAQ,GAAG,CAAC,EACnC,CACF,CAAC;EACD,OAAON,aAAa,CAACO,QAAQ,CAAC,CAAC,CAACC,MAAM,GAAG,CAAC,EAAC;AAC7C;AAEA,SAASC,eAAeA,CACtBzB,KAAK,EAAEb,mBAAmB,EAC1BgB,SAAS,EAAE,MAAM,GAAG,IAAI,EACxBD,QAAQ,EAAE,MAAM,EAChBE,WAAW,EAAE,MAAM,GAAG,IAAI,EAC1BsB,KAAK,EAAE,MAAM,EACbrB,KAAK,EAAE,MAAM,EACbJ,GAAG,EAAE,OAAO,EACZ0B,WAAW,EAAE,OAAO,CACrB,EAAEpB,YAAY,GAAG,IAAI,CAAC;EACrB,MAAMqB,SAAS,GAAG/B,eAAe,CAAC,CAAC;EACnC,IAAI,CAAC+B,SAAS,EAAE,OAAO,IAAI;;EAE3B;EACA;EACA;EACA;EACA;EACA,MAAMC,cAAc,GAAGF,WAAW,GAAGZ,kBAAkB,CAACf,KAAK,CAAC,GAAG,CAAC;EAClE,MAAMS,WAAW,GACfoB,cAAc,GAAG,CAAC,IAAIA,cAAc,GAAGxB,KAAK,GAAGwB,cAAc,GAAG,CAAC;EAEnE,MAAMC,GAAG,GAAG,GAAGJ,KAAK,IAAIrB,KAAK,IAAIJ,GAAG,GAAG,CAAC,GAAG,CAAC,IAAIQ,WAAW,IAAIN,SAAS,IAAI,EAAE,IAAID,QAAQ,EAAE;EAE5F,IAAI6B,OAAO,GAAGnB,YAAY,CAACoB,GAAG,CAAChC,KAAK,CAAC;EACrC,MAAMiC,GAAG,GAAGF,OAAO,EAAEC,GAAG,CAACF,GAAG,CAAC;EAC7B,IAAIG,GAAG,EAAE,OAAOA,GAAG;EAEnB,MAAMzB,KAAK,GAAG,IAAIoB,SAAS,CAAC5B,KAAK,EAAEG,SAAS,EAAED,QAAQ,EAAEE,WAAW,CAAC,CAAC8B,MAAM,CACzER,KAAK,EACLrB,KAAK,EACLJ,GACF,CAAC;EACD,IAAIO,KAAK,KAAK,IAAI,EAAE,OAAO,IAAI;;EAE/B;EACA;EACA;EACA,IAAIE,OAAO,EAAE,MAAM,EAAE,GAAG,IAAI,GAAG,IAAI;EACnC,IAAIC,QAAQ,EAAE,MAAM,EAAE,GAAG,IAAI,GAAG,IAAI;EACpC,IAAIF,WAAW,GAAG,CAAC,EAAE;IACnBC,OAAO,GAAGF,KAAK,CAAC2B,GAAG,CAACC,CAAC,IAAIxC,SAAS,CAACwC,CAAC,EAAE,CAAC,EAAE3B,WAAW,CAAC,CAAC;IACtDE,QAAQ,GAAGH,KAAK,CAAC2B,GAAG,CAACC,CAAC,IAAIxC,SAAS,CAACwC,CAAC,EAAE3B,WAAW,CAAC,CAAC;EACtD;EAEA,MAAM4B,KAAK,EAAE9B,YAAY,GAAG;IAAEC,KAAK;IAAEC,WAAW;IAAEC,OAAO;IAAEC;EAAS,CAAC;EAErE,IAAI,CAACoB,OAAO,EAAE;IACZA,OAAO,GAAG,IAAIjB,GAAG,CAAC,CAAC;IACnBF,YAAY,CAAC0B,GAAG,CAACtC,KAAK,EAAE+B,OAAO,CAAC;EAClC;EACA;EACA;EACA;EACA;EACA,IAAIA,OAAO,CAACQ,IAAI,IAAI,CAAC,EAAER,OAAO,CAACS,KAAK,CAAC,CAAC;EACtCT,OAAO,CAACO,GAAG,CAACR,GAAG,EAAEO,KAAK,CAAC;EACvB,OAAOA,KAAK;AACd;AAEA,OAAO,MAAMI,cAAc,GAAGpD,IAAI,CAAC,SAAAoD,eAAAC,EAAA;EAAA,MAAAC,CAAA,GAAAC,EAAA;EAAwB;IAAA5C,KAAA;IAAAC,GAAA;IAAAC,QAAA;IAAAC,SAAA;IAAAC,WAAA;IAAAC,KAAA;IAAAC,gBAAA,EAAAuC;EAAA,IAAAH,EAQnD;EADN,MAAApC,gBAAA,GAAAuC,EAAwB,KAAxBC,SAAwB,GAAxB,KAAwB,GAAxBD,EAAwB;EAExB,OAAAnB,KAAA,IAAgBhC,QAAQ,CAAC,CAAC;EAC1B,MAAAqD,QAAA,GAAiBzD,WAAW,CAAC,CAAC;EAC9B,MAAA0D,0BAAA,GACED,QAAQ,CAAAC,0BAAoC,IAA5C,KAA4C;EAI9C,MAAAC,SAAA,GAAkBhC,IAAI,CAAAC,GAAI,CAAC,CAAC,EAAED,IAAI,CAAAiC,KAAM,CAAC7C,KAAK,CAAC,CAAC;EAAA,IAAA8C,EAAA;EAAA,IAAAR,CAAA,QAAA1C,GAAA,IAAA0C,CAAA,QAAAvC,WAAA,IAAAuC,CAAA,QAAAzC,QAAA,IAAAyC,CAAA,QAAAxC,SAAA,IAAAwC,CAAA,QAAA3C,KAAA,IAAA2C,CAAA,QAAAM,SAAA,IAAAN,CAAA,QAAArC,gBAAA,IAAAqC,CAAA,QAAAK,0BAAA,IAAAL,CAAA,QAAAjB,KAAA;IAMhD,MAAAC,WAAA,GAAoBhC,sBAAsB,CAAC,CAAC;IAG1CwD,EAAA,GAAA7C,gBAA8C,IAA9C0C,0BAWK,GAXL,IAWK,GATDvB,eAAe,CACbzB,KAAK,EACLG,SAAS,EACTD,QAAQ,EACRE,WAAmB,IAAnB,IAAmB,EACnBsB,KAAK,EACLuB,SAAS,EACThD,GAAG,EACH0B,WACF,CAAC;IAAAgB,CAAA,MAAA1C,GAAA;IAAA0C,CAAA,MAAAvC,WAAA;IAAAuC,CAAA,MAAAzC,QAAA;IAAAyC,CAAA,MAAAxC,SAAA;IAAAwC,CAAA,MAAA3C,KAAA;IAAA2C,CAAA,MAAAM,SAAA;IAAAN,CAAA,MAAArC,gBAAA;IAAAqC,CAAA,MAAAK,0BAAA;IAAAL,CAAA,MAAAjB,KAAA;IAAAiB,CAAA,MAAAQ,EAAA;EAAA;IAAAA,EAAA,GAAAR,CAAA;EAAA;EAZP,MAAAS,MAAA,GACED,EAWK;EAEP,IAAI,CAACC,MAAM;IAAA,IAAAC,EAAA;IAAA,IAAAV,CAAA,SAAA1C,GAAA,IAAA0C,CAAA,SAAA3C,KAAA,IAAA2C,CAAA,SAAAtC,KAAA;MAEPgD,EAAA,IAAC,GAAG,CACF,CAAC,sBAAsB,CAAQrD,KAAK,CAALA,MAAI,CAAC,CAAOC,GAAG,CAAHA,IAAE,CAAC,CAASI,KAAK,CAALA,MAAI,CAAC,GAC9D,EAFC,GAAG,CAEE;MAAAsC,CAAA,OAAA1C,GAAA;MAAA0C,CAAA,OAAA3C,KAAA;MAAA2C,CAAA,OAAAtC,KAAA;MAAAsC,CAAA,OAAAU,EAAA;IAAA;MAAAA,EAAA,GAAAV,CAAA;IAAA;IAAA,OAFNU,EAEM;EAAA;EAIV;IAAA7C,KAAA;IAAAC,WAAA;IAAAC,OAAA;IAAAC;EAAA,IAAkDyC,MAAM;EAMxD,IAAI3C,WAAW,GAAG,CAAY,IAA1BC,OAAsC,IAAtCC,QAAsC;IAAA,IAAA0C,EAAA;IAAA,IAAAV,CAAA,SAAAlC,WAAA,IAAAkC,CAAA,SAAAjC,OAAA;MAGpC2C,EAAA,IAAC,QAAQ,CAAC,YAAY,CAAZ,KAAW,CAAC,CACpB,CAAC,OAAO,CAAQ3C,KAAO,CAAPA,QAAM,CAAC,CAASD,KAAW,CAAXA,YAAU,CAAC,GAC7C,EAFC,QAAQ,CAEE;MAAAkC,CAAA,OAAAlC,WAAA;MAAAkC,CAAA,OAAAjC,OAAA;MAAAiC,CAAA,OAAAU,EAAA;IAAA;MAAAA,EAAA,GAAAV,CAAA;IAAA;IACsB,MAAAW,EAAA,GAAAL,SAAS,GAAGxC,WAAW;IAAA,IAAA8C,EAAA;IAAA,IAAAZ,CAAA,SAAAhC,QAAA,IAAAgC,CAAA,SAAAW,EAAA;MAAxDC,EAAA,IAAC,OAAO,CAAQ5C,KAAQ,CAARA,SAAO,CAAC,CAAS,KAAuB,CAAvB,CAAA2C,EAAsB,CAAC,GAAI;MAAAX,CAAA,OAAAhC,QAAA;MAAAgC,CAAA,OAAAW,EAAA;MAAAX,CAAA,OAAAY,EAAA;IAAA;MAAAA,EAAA,GAAAZ,CAAA;IAAA;IAAA,IAAAa,EAAA;IAAA,IAAAb,CAAA,SAAAU,EAAA,IAAAV,CAAA,SAAAY,EAAA;MAJ9DC,EAAA,IAAC,GAAG,CAAe,aAAK,CAAL,KAAK,CACtB,CAAAH,EAEU,CACV,CAAAE,EAA2D,CAC7D,EALC,GAAG,CAKE;MAAAZ,CAAA,OAAAU,EAAA;MAAAV,CAAA,OAAAY,EAAA;MAAAZ,CAAA,OAAAa,EAAA;IAAA;MAAAA,EAAA,GAAAb,CAAA;IAAA;IAAA,OALNa,EAKM;EAAA;EAET,IAAAH,EAAA;EAAA,IAAAV,CAAA,SAAAnC,KAAA,IAAAmC,CAAA,SAAAM,SAAA;IAGCI,EAAA,IAAC,GAAG,CACF,CAAC,OAAO,CAAQ7C,KAAK,CAALA,MAAI,CAAC,CAASyC,KAAS,CAATA,UAAQ,CAAC,GACzC,EAFC,GAAG,CAEE;IAAAN,CAAA,OAAAnC,KAAA;IAAAmC,CAAA,OAAAM,SAAA;IAAAN,CAAA,OAAAU,EAAA;EAAA;IAAAA,EAAA,GAAAV,CAAA;EAAA;EAAA,OAFNU,EAEM;AAAA,CAET,CAAC","ignoreList":[]}