import { expect, type Page } from "@playwright/test";
import { expectTextHidden } from "../flows/assertions";
import {
  getCanvasFrame,
  openProjectBuilder,
  waitForCanvasText,
} from "../flows/builder";
import { expectGeneratedAppBuild } from "../flows/generated-app";
import {
  createFolder,
  createPageFromTemplate,
  openFolderSettings,
  openPage,
  openPageSettings,
  openPagesPanel,
  openTemplateSettings,
} from "../flows/pages-panel";
import {
  waitForChangeToBeSaved,
  waitForSyncStatus,
} from "../flows/sync-status";
import { createContentModeProject } from "../fixtures/content-mode-suite";
import type { SeededContentModeProject } from "../fixtures/content-mode-project";
import { test, withBrowserContext } from "../test";
import { measure } from "../perf";
import { loadDevBuild, updateBuild } from "../db";

let fixture: SeededContentModeProject;
let pasteFixture: SeededContentModeProject;

test.describe.configure({ mode: "parallel" });

const copiedPageTransferMarker = "@webstudio/page/v0.1";

const getPageRow = ({ page, pageName }: { page: Page; pageName: string }) =>
  page.getByRole("group", { name: `Page ${pageName}`, exact: true });

const waitForPageRow = async ({
  page,
  pageName,
}: {
  page: Page;
  pageName: string;
}) => {
  await getPageRow({ page, pageName }).waitFor();
};

const expectPageRowHidden = async ({
  page,
  pageName,
}: {
  page: Page;
  pageName: string;
}) => {
  await getPageRow({ page, pageName }).waitFor({ state: "hidden" });
};

const waitForFolderRow = async ({
  page,
  folderName,
}: {
  page: Page;
  folderName: string;
}) => {
  await page
    .getByRole("group", { name: `Folder ${folderName}`, exact: true })
    .waitFor();
};

const getTreeButton = ({ page, itemName }: { page: Page; itemName: string }) =>
  page
    .locator("[data-tree-button]")
    .filter({ has: page.getByText(itemName, { exact: true }) });

const waitForTemplate = async ({
  page,
  templateName,
}: {
  page: Page;
  templateName: string;
}) => {
  await getTreeButton({ page, itemName: templateName }).waitFor();
};

const waitForCopiedPageTransferData = async ({ page }: { page: Page }) => {
  await page.waitForFunction(async (marker) => {
    try {
      return (await navigator.clipboard.readText()).includes(marker as string);
    } catch {
      return false;
    }
  }, copiedPageTransferMarker);
};

const getDataResourceCounts = async (fixture: SeededContentModeProject) => {
  const build = await loadDevBuild({ projectId: fixture.projectId });
  const dataSources = JSON.parse(build.dataSources) as Array<{
    type: string;
    name: string;
    value?: { value?: unknown };
  }>;
  const resources = JSON.parse(build.resources) as Array<{
    name: string;
    control?: string;
  }>;

  return {
    staticVariables: dataSources.filter(
      (dataSource) =>
        dataSource.name === fixture.dataResourceStaticVariableName &&
        dataSource.value?.value ===
          fixture.dataResourceStaticVariableVisibleValue
    ).length,
    httpVariables: dataSources.filter(
      (dataSource) =>
        dataSource.type === "resource" &&
        dataSource.name === fixture.dataResourceHttpVariableName
    ).length,
    graphqlVariables: dataSources.filter(
      (dataSource) =>
        dataSource.type === "resource" &&
        dataSource.name === fixture.dataResourceGraphqlVariableName
    ).length,
    systemVariables: dataSources.filter(
      (dataSource) =>
        dataSource.type === "resource" &&
        dataSource.name === fixture.dataResourceSystemVariableName
    ).length,
    httpResources: resources.filter(
      (resource) =>
        resource.name === fixture.dataResourceHttpResourceLabel &&
        resource.control === undefined
    ).length,
    graphqlResources: resources.filter(
      (resource) =>
        resource.name === fixture.dataResourceGraphqlResourceLabel &&
        resource.control === "graphql"
    ).length,
    systemResources: resources.filter(
      (resource) =>
        resource.name === fixture.dataResourceSystemResourceLabel &&
        resource.control === "system"
    ).length,
  };
};

const expectDataResourceCopies = async (
  fixture: SeededContentModeProject,
  before: Awaited<ReturnType<typeof getDataResourceCounts>>
) => {
  const after = await getDataResourceCounts(fixture);
  const entries = Object.entries(after) as Array<[keyof typeof after, number]>;
  for (const [key, count] of entries) {
    if (count <= before[key]) {
      throw new Error(
        `Expected page template to copy ${key}; before ${before[key]}, after ${count}`
      );
    }
  }
};

const selectHeaderAction = async ({
  page,
  menuLabel,
  action,
}: {
  page: Page;
  menuLabel: string;
  action:
    | "Copy"
    | "Duplicate"
    | "Delete"
    | "Mark as draft"
    | "Stage for publish";
}) => {
  await page.getByRole("button", { name: menuLabel }).click();
  await page.getByRole("menuitem", { name: action }).click();
};

const selectContextAction = async ({
  page,
  itemName,
  action,
}: {
  page: Page;
  itemName: string;
  action: "Paste" | "Copy" | "Duplicate" | "Delete";
}) => {
  await getTreeButton({ page, itemName }).click({ button: "right" });
  await page.getByRole("menuitem", { name: action }).click();
};

const pasteFromClipboardShortcut = async ({ page }: { page: Page }) => {
  await page.keyboard.press("ControlOrMeta+V");
  await waitForSyncStatus({ page, status: "idle" });
};

const confirmDialogAction = async ({
  page,
  action,
}: {
  page: Page;
  action: string;
}) => {
  const button = page.getByRole("button", { name: action });
  await button.click();
  await button.waitFor({ state: "hidden" });
};

test.beforeAll(async ({ browser }, workerInfo) => {
  const workerSuffix = `worker-${workerInfo.parallelIndex}`;
  await withBrowserContext(browser, async (context) => {
    fixture = await createContentModeProject({
      context,
      email: `pages-actions-pages-${workerSuffix}@webstudio.test`,
      title: "Pages Actions E2E",
      assetNamePrefix: `pages-actions-pages-${workerSuffix}-`,
      editorToken: `pages-actions-pages-${workerSuffix}-editor-token`,
      builderToken: `pages-actions-pages-${workerSuffix}-builder-token`,
    });
    pasteFixture = await createContentModeProject({
      context,
      email: `pages-actions-pages-paste-${workerSuffix}@webstudio.test`,
      title: "Pages Actions Paste E2E",
      assetNamePrefix: `pages-actions-pages-paste-${workerSuffix}-`,
      editorToken: `pages-actions-pages-paste-${workerSuffix}-editor-token`,
      builderToken: `pages-actions-pages-paste-${workerSuffix}-builder-token`,
    });
  });
});

test("Canvas switches away from an AnimateText page without reloading", async ({
  browser,
  page,
}, workerInfo) => {
  const animationFixture = await withBrowserContext(browser, (context) =>
    createContentModeProject({
      context,
      email: `pages-animation-${workerInfo.parallelIndex}@webstudio.test`,
      title: "Animated Page Switch E2E",
      assetNamePrefix: `pages-animation-${workerInfo.parallelIndex}-`,
      editorToken: `pages-animation-${workerInfo.parallelIndex}-editor-token`,
      builderToken: `pages-animation-${workerInfo.parallelIndex}-builder-token`,
    })
  );
  const build = await loadDevBuild({ projectId: animationFixture.projectId });
  const instances = JSON.parse(build.instances) as Array<{
    type: "instance";
    id: string;
    component: string;
    tag?: string;
    children: Array<{ type: "id" | "text"; value: string }>;
  }>;
  const templateRoot = instances.find(
    (instance) => instance.id === "content-page-template-root"
  );
  if (templateRoot === undefined) {
    throw new Error("Expected page template root");
  }
  templateRoot.children.push({ type: "id", value: "animated-children" });
  instances.push(
    {
      type: "instance",
      id: "animated-children",
      component: "@webstudio-is/sdk-components-animation:AnimateChildren",
      children: [{ type: "id", value: "animated-text" }],
    },
    {
      type: "instance",
      id: "animated-text",
      component: "@webstudio-is/sdk-components-animation:AnimateText",
      children: [{ type: "id", value: "animated-inner" }],
    },
    {
      type: "instance",
      id: "animated-inner",
      component: "ws:element",
      tag: "div",
      children: [{ type: "id", value: "animated-span" }],
    },
    {
      type: "instance",
      id: "animated-span",
      component: "ws:element",
      tag: "span",
      children: [{ type: "text", value: "Animated page text" }],
    }
  );
  await updateBuild(build.id, { instances: JSON.stringify(instances) });

  await openProjectBuilder({
    page,
    projectId: animationFixture.projectId,
    authToken: animationFixture.builderToken,
  });
  await createPageFromTemplate({
    page,
    templateName: animationFixture.pageTemplateName,
    pageName: "Animated Page",
    canvasText: "Animated page text",
  });
  const canvas = await getCanvasFrame(page);
  if (canvas === undefined) {
    throw new Error("Expected canvas frame");
  }
  await canvas
    .locator(
      '[data-ws-component="@webstudio-is/sdk-components-animation:AnimateText"]'
    )
    .getByText("Animated page text")
    .waitFor();
  await openPage({
    page,
    pageName: "Home",
    canvasText: animationFixture.shareLinkEditableText,
  });
  expect(await getCanvasFrame(page)).toBe(canvas);
  await openPage({
    page,
    pageName: "Animated Page",
    canvasText: "Animated page text",
  });
  expect(await getCanvasFrame(page)).toBe(canvas);
});

test("Builder can draft, stage, copy, duplicate, and delete a page from the header menu", async ({
  page,
}) => {
  const pageName = "Actions Menu Page";
  const renamedPageName = "Renamed Actions Menu Page";
  const copiedPageName = `${renamedPageName} (1)`;
  const duplicatedPageName = `${renamedPageName} (2)`;

  await measure("pages actions open builder for page actions", async () => {
    await openProjectBuilder({
      page,
      projectId: fixture.projectId,
      authToken: fixture.builderToken,
    });
  });
  const dataResourceCountsBefore = await getDataResourceCounts(fixture);

  await createPageFromTemplate({
    page,
    templateName: fixture.pageTemplateName,
    pageName,
    canvasText: fixture.pageTemplateText,
  });
  await waitForCanvasText({
    page,
    text: fixture.dataResourceStaticVariableVisibleValue,
  });
  await waitForCanvasText({
    page,
    text: "HTTP resource variable configured",
  });
  await waitForCanvasText({
    page,
    text: "GraphQL resource variable configured",
  });
  await waitForCanvasText({ page, text: "2026" });
  await expectDataResourceCopies(fixture, dataResourceCountsBefore);
  await measure(
    "pages actions generated app build for copied resources",
    async () => {
      await expectGeneratedAppBuild({ projectId: fixture.projectId });
    }
  );

  await openPageSettings({ page, pageName });
  const renameSave = waitForChangeToBeSaved({ page });
  await page.getByLabel("Page name", { exact: true }).fill(renamedPageName);
  await page.getByLabel("Page name", { exact: true }).blur();
  await renameSave;
  await waitForPageRow({ page, pageName: renamedPageName });
  await expectPageRowHidden({ page, pageName });

  const draftSave = waitForChangeToBeSaved({ page });
  await selectHeaderAction({
    page,
    menuLabel: "Page actions",
    action: "Mark as draft",
  });
  await draftSave;
  await waitForPageRow({ page, pageName: `[Draft] ${renamedPageName}` });

  await openPageSettings({
    page,
    pageName: `[Draft] ${renamedPageName}`,
  });
  await page
    .getByText("Stage this page for publish before setting it as the home page")
    .waitFor();
  const stageSave = waitForChangeToBeSaved({ page });
  await selectHeaderAction({
    page,
    menuLabel: "Page actions",
    action: "Stage for publish",
  });
  await stageSave;
  await waitForPageRow({ page, pageName: renamedPageName });

  await openPageSettings({ page, pageName: renamedPageName });
  await selectHeaderAction({
    page,
    menuLabel: "Page actions",
    action: "Copy",
  });
  await waitForCopiedPageTransferData({ page });
  await pasteFromClipboardShortcut({ page });
  await waitForPageRow({ page, pageName: copiedPageName });

  const previousCanvas = await getCanvasFrame(page);
  if (previousCanvas === undefined) {
    throw new Error("Expected canvas before switching pages");
  }
  // Reproduce a component changing React-owned DOM before page teardown.
  await previousCanvas
    .getByText(fixture.pageTemplateText, { exact: true })
    .first()
    .evaluate((element) => element.remove());
  await openPage({
    page,
    pageName: copiedPageName,
    canvasText: fixture.pageTemplateText,
  });
  expect(await getCanvasFrame(page)).toBe(previousCanvas);

  await openPageSettings({ page, pageName: renamedPageName });
  await selectHeaderAction({
    page,
    menuLabel: "Page actions",
    action: "Duplicate",
  });
  await waitForPageRow({ page, pageName: duplicatedPageName });

  await openPageSettings({ page, pageName: duplicatedPageName });
  await selectHeaderAction({
    page,
    menuLabel: "Page actions",
    action: "Delete",
  });
  const deleteSave = waitForChangeToBeSaved({ page });
  await confirmDialogAction({ page, action: "Delete Page" });
  await deleteSave;
  await waitForSyncStatus({ page, status: "idle" });
  await expectPageRowHidden({ page, pageName: duplicatedPageName });

  await measure(
    "pages actions reload for page action persistence",
    async () => {
      await openProjectBuilder({
        page,
        projectId: fixture.projectId,
        authToken: fixture.builderToken,
      });
    }
  );
  await openPagesPanel({ page });
  await waitForPageRow({ page, pageName: renamedPageName });
  await expectPageRowHidden({ page, pageName });
  await waitForPageRow({ page, pageName: copiedPageName });
  await expectPageRowHidden({ page, pageName: duplicatedPageName });
  await openPage({
    page,
    pageName: renamedPageName,
    canvasText: fixture.pageTemplateText,
  });
  await waitForCanvasText({
    page,
    text: fixture.dataResourceStaticVariableVisibleValue,
  });
  await waitForCanvasText({
    page,
    text: "HTTP resource variable configured",
  });
  await waitForCanvasText({
    page,
    text: "GraphQL resource variable configured",
  });
  await waitForCanvasText({ page, text: "2026" });
  await expectDataResourceCopies(fixture, dataResourceCountsBefore);
});

test("Builder can copy, duplicate, and delete a folder from the context menu", async ({
  page,
}) => {
  const folderName = "Actions Menu Folder";
  const renamedFolderName = "Renamed Actions Menu Folder";
  const copiedFolderName = `${renamedFolderName} (1)`;
  const duplicatedFolderName = `${renamedFolderName} (2)`;

  await measure("pages actions open builder for folder actions", async () => {
    await openProjectBuilder({
      page,
      projectId: fixture.projectId,
      authToken: fixture.builderToken,
    });
  });

  await createFolder({ page, folderName });

  await openFolderSettings({ page, folderName });
  const renameSave = waitForChangeToBeSaved({ page });
  await page.getByLabel("Folder name", { exact: true }).fill(renamedFolderName);
  await page.getByLabel("Folder name", { exact: true }).blur();
  await renameSave;
  await waitForFolderRow({ page, folderName: renamedFolderName });
  await expectTextHidden({ page, text: folderName });

  await selectContextAction({
    page,
    itemName: renamedFolderName,
    action: "Copy",
  });
  await waitForCopiedPageTransferData({ page });
  const pasteSave = waitForChangeToBeSaved({ page });
  await selectContextAction({ page, itemName: "Home", action: "Paste" });
  await pasteSave;
  await waitForFolderRow({ page, folderName: copiedFolderName });

  const duplicateSave = waitForChangeToBeSaved({ page });
  await selectContextAction({
    page,
    itemName: renamedFolderName,
    action: "Duplicate",
  });
  await duplicateSave;
  await waitForFolderRow({ page, folderName: duplicatedFolderName });

  await selectContextAction({
    page,
    itemName: duplicatedFolderName,
    action: "Delete",
  });
  const deleteSave = waitForChangeToBeSaved({ page });
  await confirmDialogAction({ page, action: "Delete" });
  await deleteSave;
  await expectTextHidden({ page, text: duplicatedFolderName });

  await measure(
    "pages actions reload for folder action persistence",
    async () => {
      await openProjectBuilder({
        page,
        projectId: fixture.projectId,
        authToken: fixture.builderToken,
      });
    }
  );
  await openPagesPanel({ page });
  await waitForFolderRow({ page, folderName: renamedFolderName });
  await expectTextHidden({ page, text: folderName });
  await waitForFolderRow({ page, folderName: copiedFolderName });
  await openFolderSettings({ page, folderName: copiedFolderName });
  await expectTextHidden({ page, text: duplicatedFolderName });
});

test("Builder can copy, duplicate, and delete a page template from actions menus", async ({
  page,
}) => {
  const templateName = fixture.pageTemplateName;
  const renamedTemplateName = "Renamed Content Page Template";
  const copiedTemplateName = `${renamedTemplateName} (1)`;
  const duplicatedTemplateName = `${renamedTemplateName} (2)`;

  await measure("pages actions open builder for template actions", async () => {
    await openProjectBuilder({
      page,
      projectId: fixture.projectId,
      authToken: fixture.builderToken,
    });
  });
  await openPagesPanel({ page });

  await openTemplateSettings({ page, templateName });
  const renameSave = waitForChangeToBeSaved({ page });
  await page
    .getByLabel("Template name", { exact: true })
    .fill(renamedTemplateName);
  await page.getByLabel("Template name", { exact: true }).blur();
  await renameSave;
  await waitForTemplate({ page, templateName: renamedTemplateName });

  await openTemplateSettings({ page, templateName: renamedTemplateName });
  await selectHeaderAction({
    page,
    menuLabel: "Template actions",
    action: "Copy",
  });
  await waitForCopiedPageTransferData({ page });
  await pasteFromClipboardShortcut({ page });
  await waitForTemplate({ page, templateName: copiedTemplateName });

  await openTemplateSettings({ page, templateName: renamedTemplateName });
  await selectHeaderAction({
    page,
    menuLabel: "Template actions",
    action: "Duplicate",
  });
  await waitForTemplate({ page, templateName: duplicatedTemplateName });

  await selectContextAction({
    page,
    itemName: duplicatedTemplateName,
    action: "Delete",
  });
  const deleteSave = waitForChangeToBeSaved({ page });
  await confirmDialogAction({ page, action: "Delete Template" });
  await deleteSave;
  await expectTextHidden({ page, text: duplicatedTemplateName });

  await measure(
    "pages actions reload for template action persistence",
    async () => {
      await openProjectBuilder({
        page,
        projectId: fixture.projectId,
        authToken: fixture.builderToken,
      });
    }
  );
  await openPagesPanel({ page });
  await waitForTemplate({ page, templateName: renamedTemplateName });
  await waitForTemplate({ page, templateName: copiedTemplateName });
  await expectTextHidden({ page, text: duplicatedTemplateName });
});

const createInstanceTransfer = ({ id, text }: { id: string; text: string }) =>
  JSON.stringify({
    "@webstudio/instance/v0.1": {
      instanceSelector: [id, "source-body"],
      children: [{ type: "id", value: id }],
      instances: [
        {
          type: "instance",
          id,
          component: "ws:element",
          tag: "p",
          children: [{ type: "text", value: text }],
        },
      ],
      assets: [],
      dataSources: [],
      resources: [],
      props: [],
      breakpoints: [],
      styleSourceSelections: [],
      styleSources: [],
      styles: [],
    },
  });

const selectPasteBody = async ({ page }: { page: Page }) => {
  const navigatorTab = page.getByRole("tab", { name: "Navigator" });
  if ((await navigatorTab.getAttribute("aria-selected")) !== "true") {
    await navigatorTab.click();
  }
  const body = page
    .locator("[data-navigator-tree] [data-tree-button]")
    .filter({ hasText: "Body" })
    .last();
  await body.dblclick();
};

const pasteClipboardData = async ({
  page,
  data,
}: {
  page: Page;
  data: Record<string, string>;
}) => {
  const save = waitForChangeToBeSaved({ page });
  await page.evaluate((data) => {
    const clipboardData = new DataTransfer();
    for (const [mimeType, value] of Object.entries(data)) {
      clipboardData.setData(mimeType, value);
    }
    document.dispatchEvent(
      new ClipboardEvent("paste", {
        bubbles: true,
        cancelable: true,
        clipboardData,
      })
    );
  }, data);
  await save;
  await waitForSyncStatus({ page, status: "idle" });
};

const countPastedElements = async ({
  tag,
  text,
}: {
  tag: string;
  text: string;
}) => {
  const build = await loadDevBuild({ projectId: pasteFixture.projectId });
  const instances = JSON.parse(build.instances) as Array<{
    component?: string;
    tag?: string;
    children?: Array<{ type: string; value?: string }>;
  }>;
  return instances.filter(
    (instance) =>
      instance.component === "ws:element" &&
      instance.tag === tag &&
      instance.children?.some(
        (child) => child.type === "text" && child.value?.includes(text)
      )
  ).length;
};

const countBuildInstancesWithText = async (text: string) => {
  const build = await loadDevBuild({ projectId: pasteFixture.projectId });
  const instances = JSON.parse(build.instances) as Array<{
    id: string;
    children?: Array<{ type: string; value?: string }>;
  }>;
  const instancesById = new Map(
    instances.map((instance) => [instance.id, instance])
  );
  const containsText = (instanceId: string): boolean => {
    const instance = instancesById.get(instanceId);
    return (
      instance?.children?.some(
        (child) =>
          (child.type === "text" && child.value?.includes(text)) ||
          (child.type === "id" &&
            child.value !== undefined &&
            containsText(child.value))
      ) ?? false
    );
  };
  return instances.filter((instance) => containsText(instance.id)).length;
};

test("Builder runs paste plugins through generic browser paste events", async ({
  page,
}) => {
  const entries = [
    [
      "application/json",
      createInstanceTransfer({
        id: "paste-json",
        text: "Instance JSON paste heading",
      }),
      "Instance JSON paste heading",
      "p",
    ],
    [
      "text/plain",
      createInstanceTransfer({
        id: "paste-text",
        text: "Instance text paste heading",
      }),
      "Instance text paste heading",
      "p",
    ],
    ["text/plain", "<h2>JSX paste heading</h2>", "JSX paste heading", "h2"],
    [
      "text/plain",
      "<section><h2>HTML paste heading</h2></section>",
      "HTML paste heading",
      "h2",
    ],
    ["text/plain", "## Markdown paste heading", "Markdown paste heading", "h2"],
    [
      "application/json",
      JSON.stringify({
        type: "@webflow/XscpData",
        payload: {
          nodes: [
            {
              _id: "webflow-heading",
              type: "Heading",
              tag: "h1",
              children: ["webflow-heading-text"],
              classes: [],
            },
            {
              _id: "webflow-heading-text",
              v: "Webflow paste heading",
              text: true,
            },
          ],
          styles: [],
          assets: [],
        },
      }),
      "Webflow paste heading",
      undefined,
    ],
  ] as const;

  await openProjectBuilder({
    page,
    projectId: pasteFixture.projectId,
    authToken: pasteFixture.builderToken,
  });
  await waitForCanvasText({ page, text: "Initial content" });

  for (const [mimeType, value, text, tag] of entries) {
    await selectPasteBody({ page });
    await pasteClipboardData({ page, data: { [mimeType]: value } });
    await waitForCanvasText({ page, text });
    if (tag === undefined) {
      const count = await countBuildInstancesWithText(text);
      if (count === 0) {
        throw new Error(
          `Expected generic Webflow paste to persist ${JSON.stringify(text)}`
        );
      }
      continue;
    }
    const count = await countPastedElements({ tag, text });
    if (count !== 1) {
      throw new Error(
        `Expected one ${tag} containing ${JSON.stringify(text)}, found ${count}`
      );
    }
  }
});