import { expect, type Page, test } from "@playwright/test";
import { captureScreenshot, completeOnboarding, signup, waitForChatComposer } from "./helpers";

async function openComposer(page: Page) {
  const stamp = Date.now();
  await signup(page, `composer-paste-${stamp}@rakazo.test`, "password12", "Paste Test");
  await completeOnboarding(page);
  await page.goto("/app", { waitUntil: "domcontentloaded" });
  await page.waitForURL(/\/app\/[^/]+$/, { timeout: 60_000 });
  await waitForChatComposer(page);
  return page.getByRole("combobox", { name: /Message/ });
}

test("pasting an image into the composer creates an attachment", async ({ page }, testInfo) => {
  const composer = await openComposer(page);
  await composer.click();
  await page.evaluate(() => {
    const target = document.querySelector("textarea[name='chat-message']");
    if (!target) throw new Error("composer textarea not found");
    const bytes = new Uint8Array([137, 80, 78, 71, 13, 10, 26, 10]);
    const file = new File([bytes], "paste.png", { type: "image/png" });
    const clipboardData = {
      files: [file],
      types: ["Files"],
      items: [{ kind: "file" }],
      getData: () => "",
    };
    const event = new Event("paste", { bubbles: true, cancelable: true });
    Object.defineProperty(event, "clipboardData", { value: clipboardData });
    target.dispatchEvent(event);
  });
  await expect(page.getByRole("button", { name: "Remove paste.png" })).toBeVisible();
  await captureScreenshot(page, testInfo, "composer-paste-attachment");
});

test("pasting text into the composer still inserts text", async ({ page, context }) => {
  const composer = await openComposer(page);
  await context.grantPermissions(["clipboard-read", "clipboard-write"]);
  await page.evaluate(() => navigator.clipboard.writeText("pasted words"));
  await composer.click();
  await page.keyboard.press("ControlOrMeta+v");
  await expect(composer).toHaveValue("pasted words");
});

test("pasting an image with text keeps the attachment and inserts text", async ({ page }) => {
  const composer = await openComposer(page);
  await composer.click();
  await page.evaluate(() => {
    const target = document.querySelector("textarea[name='chat-message']");
    if (!(target instanceof HTMLTextAreaElement)) throw new Error("composer textarea not found");
    const bytes = new Uint8Array([137, 80, 78, 71, 13, 10, 26, 10]);
    const file = new File([bytes], "mixed.png", { type: "image/png" });
    const clipboardData = {
      files: [file],
      types: ["Files", "text/plain"],
      items: [{ kind: "file" }, { kind: "string" }],
      getData: (type: string) => (type === "text/plain" ? "caption text" : ""),
    };
    const event = new Event("paste", { bubbles: true, cancelable: true });
    Object.defineProperty(event, "clipboardData", { value: clipboardData });
    target.dispatchEvent(event);
  });
  await expect(page.getByRole("button", { name: "Remove mixed.png" })).toBeVisible();
  await expect(composer).toHaveValue("caption text");
});