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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import type { EntryPoint, ShimOptions } from "../mod.ts";import { TransformOutput } from "../transform.ts";import { PackageJsonObject } from "./types.ts";
export interface GetPackageJsonOptions {  transformOutput: TransformOutput;  entryPoints: EntryPoint[];  package: PackageJsonObject;  includeScriptModule: boolean | undefined;  includeDeclarations: boolean | undefined;  includeTsLib: boolean | undefined;  testEnabled: boolean | undefined;  shims: ShimOptions;}
export function getPackageJson({  transformOutput,  entryPoints,  package: packageJsonObj,  includeScriptModule,  includeDeclarations,  includeTsLib,  testEnabled,  shims,}: GetPackageJsonOptions): Record<string, unknown> {  const finalEntryPoints = transformOutput    .main.entryPoints.map((e, i) => ({      name: entryPoints[i].name,      kind: entryPoints[i].kind ?? "export",      path: e.replace(/\.tsx?$/i, ".js"),      types: e.replace(/\.tsx?$/i, ".d.ts"),    }));  const exports = finalEntryPoints.filter((e) => e.kind === "export");  const binaries = finalEntryPoints.filter((e) => e.kind === "bin");  const dependencies = {    // typescript helpers library (https://www.npmjs.com/package/tslib)    ...(includeTsLib      ? {        tslib: "2.3.1",      }      : {}),    // add dependencies from transform    ...Object.fromEntries(      transformOutput.main.dependencies        .filter((d) => !d.peerDependency)        .map((d) => [d.name, d.version]),    ),    // override with specified dependencies    ...(packageJsonObj.dependencies ?? {}),  };  const peerDependencies = {    // add dependencies from transform    ...Object.fromEntries(      transformOutput.main.dependencies        .filter((d) => d.peerDependency)        .map((d) => [d.name, d.version]),    ),    // override with specified dependencies    ...(packageJsonObj.peerDependencies ?? {}),  };  const testDevDependencies = testEnabled    ? ({      ...(!Object.keys(dependencies).includes("chalk")        ? {          "chalk": "4.1.2",        }        : {}),      // add dependencies from transform      ...Object.fromEntries(        // ignore peer dependencies on this        transformOutput.test.dependencies.map((d) => [d.name, d.version]) ??          [],      ),    })    : {};  const devDependencies = {    ...(shouldIncludeTypesNode()      ? {        "@types/node": "16.11.37",      }      : {}),    ...testDevDependencies,    // override with specified dependencies    ...(packageJsonObj.devDependencies ?? {}),  };  const scripts = testEnabled    ? ({      test: "node test_runner.js",      // override with specified scripts      ...(packageJsonObj.scripts ?? {}),    })    : packageJsonObj.scripts;  const mainExport = exports.length > 0    ? {      module: `./esm/${exports[0].path}`,      main: includeScriptModule ? `./script/${exports[0].path}` : undefined,      types: includeDeclarations ? `./types/${exports[0].types}` : undefined,    }    : {};  const binaryExport = binaries.length > 0    ? {      bin: Object.fromEntries(binaries.map((b) => [b.name, `./esm/${b.path}`])),    }    : {};
  return {    ...mainExport,    ...binaryExport,    ...packageJsonObj,    ...deleteEmptyKeys({      exports: {        ...(packageJsonObj.exports ?? {}),        ...(Object.fromEntries(exports.map((e) => [e.name, {          import: `./esm/${e.path}`,          require: includeScriptModule ? `./script/${e.path}` : undefined,          types: includeDeclarations            ? (e.name === "." ? packageJsonObj.types : undefined) ??              `./types/${e.types}`            : undefined,          ...(packageJsonObj.exports?.[e.name] ?? {}),        }]))),      },      scripts,      dependencies,      peerDependencies,      devDependencies,    }),  };
  function shouldIncludeTypesNode() {    if (Object.keys(dependencies).includes("@types/node")) {      return false;    }
    if (typeof shims.deno === "object") {      if (shims.deno.test) {        return true;      } else {        return false;      }    } else if (shims.deno || shims.undici) {      return true;    } else {      return false;    }  }
  function deleteEmptyKeys(obj: Record<string, unknown>) {    for (const key of Object.keys(obj)) {      const value = obj[key];      if (        typeof value === "object" && value != null &&        Object.keys(value).length === 0      ) {        delete obj[key];      }    }    return obj;  }}