import fs from "fs";
import { join } from "path";
import rushLib from "@microsoft/rush-lib";

const rushConfiguration = rushLib.RushConfiguration.loadFromDefaultLocation({
  startingFolder: process.cwd(),
});

const purpurLibProject = rushConfiguration.findProjectByShorthandName("@purpurds/purpur");

purpurLibProject?.packageJsonEditor.addOrUpdateDependency(
  "@purpurds/tokens",
  "workspace:*",
  rushLib.DependencyType.Regular
);

const components = rushConfiguration.projects.filter(
  (project) =>
    project.projectRelativeFolder.startsWith("components/") &&
    project.packageName !== "@purpurds/icon" &&
    project.packageName !== "@purpurds/illustrative-icon" &&
    project.packageName !== "@purpurds/logo" &&
    project.packageName !== "@purpurds/password-field"
);

const getComponentName = (packageName: string) => packageName.replace("@purpurds/", "");

const getFileContent = (lines: string[]) => {
  return [
    "/**",
    " * ⚠️ WARNING ⚠️",
    " * This file is automatically generated, do not edit it manually",
    " */",
    "",
  ]
    .concat(lines)
    .join("\n");
};

const getIndexFileLines = async () => {
  const projectFileLines = await Promise.all(
    components.map(async (project) => {
      const { packageName } = project;

      purpurLibProject?.packageJsonEditor.addOrUpdateDependency(
        packageName,
        "workspace:*",
        rushLib.DependencyType.Regular
      );

      const packageJson = await import(
        join(process.cwd(), "../../", project.projectRelativeFolder, "package.json")
      );

      const hasStyles = !!packageJson.exports["./styles"];

      const lines = (hasStyles ? [`import "${packageName}/styles";`] : [])
        .concat(`export * from "${packageName}";`)
        .concat("");

      fs.writeFileSync(
        join(process.cwd(), "src", `${getComponentName(packageName)}.ts`),
        getFileContent(lines)
      );

      return lines;
    })
  );

  return projectFileLines;
};

const indexFileLines = await getIndexFileLines();

fs.writeFileSync(
  join(process.cwd(), "src", "purpur.ts"),
  getFileContent(
    [
      `import "./purpur.css"`,
      "",
      `import "@purpurds/icon/styles";`,
      "",
      `import "@purpurds/illustrative-icon/styles";`,
      "",
      `import "@purpurds/logo/styles";`,
      "",
      `import "@purpurds/password-field/styles";`,
      "",
    ].concat(indexFileLines.flat())
  )
);

fs.writeFileSync(
  join(process.cwd(), "src", "entries.js"),
  getFileContent([
    `export const entries = [${components
      .map(({ packageName }) => `"${getComponentName(packageName)}"`)
      .join(",")}];`,
  ])
);

purpurLibProject?.packageJsonEditor.saveIfModified();