import { createRequire } from "node:module";
import { join } from "node:path";

import colors from "picocolors";
import semver from "semver";

export function checkNodejsVersion() {
  const minNodeVersion = "20.10.0";
  if (
    semver.lt(process.versions.node, minNodeVersion, {
      loose: true,
    })
  ) {
    console.log(`Node.js version ${colors.cyan(`v${minNodeVersion}`)} or higher is required to use ${colors.cyan("@lazarv/react-server")}.
You are currently running Node.js ${colors.cyan(process.version)}.
Please upgrade your Node.js version.
      `);
    return true;
  }
}

export function checkBunVersion() {
  const minBunVersion = "1.1.45";
  if (
    semver.lt(process.versions.bun, minBunVersion, {
      loose: true,
    })
  ) {
    console.log(`Bun version ${colors.cyan(`v${minBunVersion}`)} or higher is required to use ${colors.cyan("@lazarv/react-server")}.
You are currently running Bun ${colors.cyan(`v${process.versions.bun}`)}.
Please upgrade your Bun version.
      `);
    return true;
  }
}

export function checkDenoVersion() {
  const minDenoVersion = "2.0.0";
  if (
    semver.lt(Deno.version.deno, minDenoVersion, {
      loose: true,
    })
  ) {
    console.log(`Deno version ${colors.cyan(`v${minDenoVersion}`)} or higher is required to use ${colors.cyan("@lazarv/react-server")}.
You are currently running Deno ${colors.cyan(`v${Deno.version.deno}`)}.
Please upgrade your Deno version.
      `);
    return true;
  }
}

export function checkJSRuntimeVersion() {
  if (typeof Deno !== "undefined") {
    return checkDenoVersion();
  } else if (typeof Bun !== "undefined") {
    return checkBunVersion();
  } else {
    return checkNodejsVersion();
  }
}

export async function checkReactDependencies() {
  let uninstall = [];
  const __require = createRequire(import.meta.url);
  const { default: packageJson } = await import(
    "@lazarv/react-server/package.json",
    { with: { type: "json" } }
  );
  await Promise.all(
    ["react", "react-dom"].map(async (pkg) => {
      try {
        const pkgPath = __require.resolve(`${pkg}/package.json`, {
          paths: [process.cwd()],
        });
        const [
          {
            default: { version: userPkgVersion },
          },
          userPkg,
        ] = await Promise.all([
          import(pkgPath, { with: { type: "json" } }),
          import(join(process.cwd(), "package.json"), {
            with: { type: "json" },
          }),
        ]);
        const systemPkgVersion =
          packageJson.dependencies?.[pkg] ||
          packageJson.peerDependencies?.[pkg];
        if (
          userPkgVersion !== systemPkgVersion &&
          (userPkg.dependencies?.[pkg] || userPkg.devDependencies?.[pkg])
        ) {
          uninstall.push(
            `  ${colors.cyan(`${pkg}@${userPkgVersion}`)} ${colors.red(`expected: ${pkg}@${systemPkgVersion}`)} \n`
          );
        }
      } catch {
        // Do nothing
      }
    })
  );

  if (uninstall.length > 0) {
    console.log(`You don't need to install ${colors.cyan("react")} or ${colors.cyan("react-dom")} in your project.
${colors.cyan("@lazarv/react-server")} already includes a specific version of ${colors.cyan("react")} or ${colors.cyan("react-dom")} that is compatible with the current version of ${colors.cyan("@lazarv/react-server")}.
You can remove the following packages from your project:
${uninstall.join("")}`);
    return true;
  }
}