'use strict';

const promises = require('fs/promises');
const path = require('path');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e["default"] : e; }

const path__default = /*#__PURE__*/_interopDefaultLegacy(path);

function stripQueryParams(filePath) {
  return filePath.split("?")[0];
}
function isUserCode(moduleName) {
  return Boolean(moduleName && !moduleName.startsWith("vite/") && !moduleName.startsWith("\0") && !moduleName.startsWith("\0") && moduleName !== "react/jsx-runtime" && !moduleName.match(/node_modules\//));
}
function pluginTurbosnap({
  rootDir
}) {
  function normalize(filename) {
    if (filename.startsWith("/virtual:")) {
      return filename;
    } else {
      const relativePath = path__default.relative(rootDir, stripQueryParams(filename));
      return `./${relativePath}`;
    }
  }
  function createReasons(importers) {
    return (importers || []).map((i) => ({ moduleName: normalize(i) }));
  }
  function createStatsMapModule(filename, importers) {
    return {
      id: filename,
      name: filename,
      reasons: createReasons(importers)
    };
  }
  const statsMap = /* @__PURE__ */ new Map();
  return {
    name: "rollup-plugin-turbosnap",
    enforce: "post",
    moduleParsed: function(mod) {
      if (isUserCode(mod.id)) {
        mod.importedIds.concat(mod.dynamicallyImportedIds).filter((name) => isUserCode(name)).forEach((depIdUnsafe) => {
          const depId = normalize(depIdUnsafe);
          if (statsMap.has(depId)) {
            const m = statsMap.get(depId);
            if (m) {
              m.reasons = (m.reasons ?? []).concat(createReasons([mod.id])).filter((r) => r.moduleName !== depId);
              statsMap.set(depId, m);
            }
          } else {
            statsMap.set(depId, createStatsMapModule(depId, [mod.id]));
          }
        });
      }
    },
    generateBundle: function(outOpts) {
      const stats = { modules: Array.from(statsMap.values()) };
      if (!outOpts.dir) {
        throw new Error("Vite option `build.outDir` was not configured.");
      }
      const filename = path__default.resolve(outOpts.dir, "preview-stats.json");
      console.log(`rollup-plugin-turbosnap: writing to ${filename}`);
      return promises.writeFile(filename, JSON.stringify(stats, null, 2));
    }
  };
}

module.exports = pluginTurbosnap;