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import { decode } from "./helper.ts";
export async function readText(): Promise<string> {  const cmd = new Deno.Command("powershell", {    args: ["-noprofile", "-command", "Get-Clipboard"],    stdin: "null",    stdout: "piped",    stderr: "piped",  });  const { success, code, stderr, stdout } = await cmd.output();  if (!success) {    const cause = decode(stderr);    throw new Error(      `failed to read text: exit code: ${code}, error: ${cause}`,    );  }  // Remove trailing CRLF while powershell automatically adds it.  return decode(stdout).replace(/\r\n$/, "");}
export async function writeText(text: string): Promise<void> {  const cmd = new Deno.Command("powershell", {    args: ["-noprofile", "-command", "$input|Set-Clipboard"],    stdin: "piped",    stderr: "piped",    stdout: "null",  });  const child = cmd.spawn();
  const r = new Blob([text]).stream();  await r.pipeTo(child.stdin);
  const { success, code, stderr } = await child.output();  if (!success) {    const cause = decode(stderr);    throw new Error(      `failed to write text: exit code: ${code}, error: ${cause}`,    );  }}
export async function readImage(): Promise<Uint8Array> {  const tmp = await Deno.makeTempFile();  try {    const cmd = new Deno.Command("powershell", {      args: [        "-noprofile",        "-command",        "Add-Type",        "-assemblyname",        `System.Windows.Forms;$clip=[Windows.Forms.Clipboard]::GetImage();if ($clip -ne $null) { $clip.Save('${tmp}') };`,      ],      stdin: "null",      stdout: "null",      stderr: "piped",    });    const { success, code, stderr } = await cmd.output();    if (!success) {      const cause = decode(stderr);      throw new Error(        `failed to read image: exit code: ${code}, error: ${cause}`,      );    }    return await Deno.readFile(tmp);  } finally {    await Deno.remove(tmp);  }}
export async function writeImage(data: Uint8Array): Promise<void> {  const tmp = await Deno.makeTempFile();  try {    const file = await Deno.open(tmp, { write: true });    await ReadableStream.from([data]).pipeTo(file.writable);    const cmd = new Deno.Command("powershell", {      args: [        "-noprofile",        "-command",        "Add-Type",        "-assemblyname",        `System.Windows.Forms;[Windows.Forms.Clipboard]::SetImage([System.Drawing.Image]::FromFile('${tmp}'));`,      ],      stdin: "null",      stdout: "null",      stderr: "piped",    });    const { success, code, stderr } = await cmd.output();    if (!success) {      const cause = decode(stderr);      throw new Error(        `failed to write image: exit code: ${code}, error: ${cause}`,      );    }  } finally {    await Deno.remove(tmp);  }}