import test from "node:test";
import assert from "node:assert/strict";

import { setupModal } from "./video-modal-accessibility.test.mjs";
import VideoModalCommentController from "../js/ui/videoModalCommentController.js";
import { COMMENT_EVENT_KIND } from "../js/nostr/commentEvents.js";

const FOCUSABLE_SELECTOR = [
  "a[href]",
  "area[href]",
  "button:not([disabled])",
  'input:not([type="hidden"]):not([disabled])',
  "select:not([disabled])",
  "textarea:not([disabled])",
  "iframe",
  "object",
  "embed",
  '[contenteditable="true"]',
  "[tabindex]",
  "audio[controls]",
  "video[controls]",
].join(",");

function createCommentEvent({ id, pubkey, content, createdAt, parentId = null }) {
  const tags = [["e", "video123"], ["a", "30078:authorpk:video-root"]];
  if (parentId) {
    tags.push(["e", parentId]);
  }
  assert.ok(
    tags.some((tag) => Array.isArray(tag) && tag[0] === "e" && tag[1] === "video123"),
    "comment fixture should include root #e tag",
  );
  assert.ok(
    tags.some(
      (tag) =>
        Array.isArray(tag) && tag[0] === "a" && tag[1] === "30078:authorpk:video-root",
    ),
    "comment fixture should include root #a tag",
  );
  return {
    id,
    pubkey,
    content,
    kind: 1,
    created_at: createdAt,
    tags,
  };
}

test("VideoModal comment section toggles visibility and renders hydrated comments", async (t) => {
  const { document, modal, cleanup } = await setupModal();
  t.after(cleanup);

  const commentsRoot = document.querySelector("[data-comments-root]");
  assert.ok(commentsRoot, "comment root should exist");

  modal.setCommentsVisibility(false);
  assert.equal(commentsRoot.hasAttribute("hidden"), true);
  assert.equal(commentsRoot.classList.contains("hidden"), true);

  modal.setCommentsVisibility(true);
  assert.equal(commentsRoot.hasAttribute("hidden"), false);
  assert.equal(commentsRoot.classList.contains("hidden"), false);

  const snapshot = {
    videoEventId: "video123",
    parentCommentId: null,
    commentsById: new Map([
      [
        "comment-1",
        createCommentEvent({
          id: "comment-1",
          pubkey: "pk1",
          content: "First!",
          createdAt: 1700000000,
        }),
      ],
      [
        "reply-1",
        createCommentEvent({
          id: "reply-1",
          pubkey: "pk2",
          content: "Thanks for sharing",
          createdAt: 1700000005,
          parentId: "comment-1",
        }),
      ],
    ]),
    childrenByParent: new Map([
      [null, ["comment-1"]],
      ["comment-1", ["reply-1"]],
    ]),
    profiles: new Map([
      ["pk1", { name: "Alice" }],
      ["pk2", { name: "Bob" }],
    ]),
  };

  modal.renderComments(snapshot);

  const renderedItems = Array.from(
    modal.commentsList.querySelectorAll("[data-comment-id]"),
  );
  assert.equal(renderedItems.length, 2, "should render top-level comment and reply");

  const topLevel = modal.commentsList.querySelector('[data-comment-id="comment-1"]');
  assert.ok(topLevel, "top-level comment node should render");
  assert.equal(topLevel.dataset.commentDepth, "0");

  const reply = modal.commentsList.querySelector('[data-comment-id="reply-1"]');
  assert.ok(reply, "reply node should render");
  assert.equal(reply.dataset.commentDepth, "1");
  assert.equal(reply.closest("ol").getAttribute("role"), "list");

  const countLabel = document.querySelector("[data-comments-count]");
  assert.equal(countLabel.textContent.trim(), "2 comments");

  const emptyState = document.querySelector("[data-comments-empty]");
  assert.equal(emptyState.hasAttribute("hidden"), true);
  assert.equal(modal.commentsList.getAttribute("data-empty"), null);
});

test(
  "Unauthenticated users can read comments while the composer stays disabled",
  async (t) => {
    const { document, modal, cleanup } = await setupModal();
    t.after(cleanup);

    const controller = new VideoModalCommentController({
      commentThreadService: {
        defaultLimit: 2,
        setCallbacks: () => {},
        teardown: () => {},
        loadThread: () => Promise.resolve(),
        processIncomingEvent: () => {},
      },
      videoModal: modal,
      auth: {
        isLoggedIn: () => false,
      },
    });

    controller.load({ id: "video-login-required", enableComments: true });
    await Promise.resolve();

    controller.handleCommentThreadReady({
      videoEventId: "video-login-required",
      parentCommentId: null,
      commentsById: new Map([
        [
          "guest-comment",
          createCommentEvent({
            id: "guest-comment",
            pubkey: "pk-guest",
            content: "Looking forward to more uploads",
            createdAt: 1700000010,
          }),
        ],
      ]),
      childrenByParent: new Map([[null, ["guest-comment"]]]),
      profiles: new Map([["pk-guest", { name: "Guest" }]]),
    });

    const commentsRoot = document.querySelector("[data-comments-root]");
    assert.equal(commentsRoot.hasAttribute("hidden"), false);
    assert.equal(commentsRoot.classList.contains("hidden"), false);

    const renderedComments = Array.from(
      modal.commentsList.querySelectorAll("[data-comment-id]") || [],
    );
    assert.equal(renderedComments.length, 1);
    assert.equal(renderedComments[0].dataset.commentId, "guest-comment");

    assert.equal(modal.commentComposerState.reason, "login-required");
    assert.equal(modal.commentsInput?.disabled, true);
    assert.equal(modal.commentsSubmitButton?.disabled, true);

    const disabledPlaceholder = document.querySelector(
      "[data-comments-disabled-placeholder]",
    );
    assert.equal(disabledPlaceholder.hasAttribute("hidden"), true);
    assert.equal(
      disabledPlaceholder.textContent.trim(),
      "Comments have been turned off for this video.",
    );
  },
);

test(
  "Guest users render loaded thread snapshots before composer auth enforcement",
  async (t) => {
    const { modal, cleanup } = await setupModal();
    t.after(cleanup);

    const snapshot = {
      videoEventId: "video-loaded-snapshot",
      parentCommentId: null,
      commentsById: new Map([
        [
          "loaded-comment",
          createCommentEvent({
            id: "loaded-comment",
            pubkey: "pk-loaded",
            content: "Snapshot content shows up",
            createdAt: 1700000100,
          }),
        ],
      ]),
      childrenByParent: new Map([[null, ["loaded-comment"]]]),
      profiles: new Map([["pk-loaded", { name: "Loaded" }]]),
    };

    const controller = new VideoModalCommentController({
      commentThreadService: {
        defaultLimit: 1,
        setCallbacks: () => {},
        teardown: () => {},
        loadThread: () => Promise.resolve(snapshot),
      },
      videoModal: modal,
      auth: {
        isLoggedIn: () => false,
      },
    });

    controller.load({ id: "video-loaded-snapshot", enableComments: true });
    await controller.modalCommentLoadPromise;

    const renderedComments = Array.from(
      modal.commentsList.querySelectorAll("[data-comment-id]") || [],
    );
    assert.equal(renderedComments.length, 1);
    assert.equal(renderedComments[0].dataset.commentId, "loaded-comment");

    const statusText =
      modal.commentsStatusMessage?.textContent.trim().replace(/\s+/g, " ") ||
      "";
    assert.equal(statusText, "");
    assert.equal(modal.commentComposerState.reason, "login-required");
  },
);

test(
  "Thread ready snapshots force comments visible before composer gating",
  async (t) => {
    const { modal, cleanup } = await setupModal();
    t.after(cleanup);

    const visibilityCalls = [];
    const instrumentedModal = Object.create(modal);
    instrumentedModal.setCommentsVisibility = (isVisible) => {
      visibilityCalls.push(isVisible);
      modal.setCommentsVisibility(isVisible);
    };

    const snapshot = {
      videoEventId: "video-visibility-snapshot",
      parentCommentId: null,
      commentsById: new Map([
        [
          "visible-comment",
          createCommentEvent({
            id: "visible-comment",
            pubkey: "pk-visible",
            content: "Rendered as soon as thread is ready",
            createdAt: 1700000300,
          }),
        ],
      ]),
      childrenByParent: new Map([[null, ["visible-comment"]]]),
      profiles: new Map([["pk-visible", { name: "Visible" }]]),
    };

    const controller = new VideoModalCommentController({
      commentThreadService: {
        defaultLimit: 1,
        setCallbacks: () => {},
        teardown: () => {},
        loadThread: () => Promise.resolve(snapshot),
      },
      videoModal: instrumentedModal,
      auth: {
        isLoggedIn: () => false,
      },
    });

    controller.load({ id: "video-visibility-snapshot", enableComments: true });
    await controller.modalCommentLoadPromise;

    assert.ok(visibilityCalls.length >= 2);
    assert.equal(visibilityCalls.pop(), true);

    const renderedComments = Array.from(
      modal.commentsList.querySelectorAll("[data-comment-id]") || [],
    );
    assert.equal(renderedComments.length, 1);
    assert.equal(renderedComments[0].dataset.commentId, "visible-comment");
  },
);

test(
  "Controller renders synchronous loadThread snapshots immediately",
  async (t) => {
    const { modal, cleanup } = await setupModal();
    t.after(cleanup);

    const snapshot = {
      videoEventId: "video-sync-snapshot",
      parentCommentId: null,
      commentsById: new Map([
        [
          "sync-comment",
          createCommentEvent({
            id: "sync-comment",
            pubkey: "pk-sync",
            content: "Snapshot delivered instantly",
            createdAt: 1700000200,
          }),
        ],
      ]),
      childrenByParent: new Map([[null, ["sync-comment"]]]),
      profiles: new Map([["pk-sync", { name: "Synchronous" }]]),
    };

    const controller = new VideoModalCommentController({
      commentThreadService: {
        defaultLimit: 1,
        setCallbacks: () => {},
        teardown: () => {},
        loadThread: () => snapshot,
      },
      videoModal: modal,
      auth: {
        isLoggedIn: () => false,
      },
    });

    controller.load({ id: "video-sync-snapshot", enableComments: true });
    await Promise.resolve();

    const renderedComments = Array.from(
      modal.commentsList.querySelectorAll("[data-comment-id]") || [],
    );
    assert.equal(renderedComments.length, 1);
    assert.equal(renderedComments[0].dataset.commentId, "sync-comment");

    const statusText =
      modal.commentsStatusMessage?.textContent.trim().replace(/\s+/g, " ") ||
      "";
    assert.equal(statusText, "");
    assert.equal(modal.commentComposerState.reason, "login-required");
  },
);

test(
  "VideoModalCommentController attaches profiles using normalized pubkeys",
  async () => {
    const appended = [];

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        teardown: () => {},
        loadThread: () => Promise.resolve(),
      },
      videoModal: {
        setCommentSectionCallbacks: () => {},
        hideCommentsDisabledMessage: () => {},
        showCommentsDisabledMessage: () => {},
        setCommentsVisibility: () => {},
        clearComments: () => {},
        resetCommentComposer: () => {},
        setCommentStatus: () => {},
        setCommentComposerState: () => {},
        appendComment: (comment) => appended.push(comment),
      },
      auth: {
        isLoggedIn: () => true,
      },
    });

    controller.load({ id: "VideoCase", enableComments: true });
    await Promise.resolve();

    controller.handleCommentThreadAppend({
      videoEventId: "VideoCase",
      commentsById: new Map([
        [
          "c1",
          {
            id: "c1",
            pubkey: "AbCd",
            kind: COMMENT_EVENT_KIND,
            content: "Hi",
            tags: [],
          },
        ],
      ]),
      childrenByParent: new Map([[null, ["c1"]]]),
      commentIds: ["c1"],
      profiles: new Map([["ABCD", { name: "Mixed Case" }]]),
    });

    assert.equal(appended.length, 1);
    assert.deepEqual(appended[0].profile, { name: "Mixed Case" });
  },
);

test(
  "VideoModalCommentController accepts mixed-case videoEventIds for snapshots",
  async () => {
    const renderedSnapshots = [];
    const appended = [];

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        teardown: () => {},
        loadThread: () => Promise.resolve(),
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentSectionCallbacks: () => {},
        hideCommentsDisabledMessage: () => {},
        showCommentsDisabledMessage: () => {},
        setCommentsVisibility: () => {},
        clearComments: () => {},
        resetCommentComposer: () => {},
        setCommentStatus: () => {},
        setCommentComposerState: () => {},
        renderComments: (snapshot) => renderedSnapshots.push(snapshot),
        appendComment: (comment) => appended.push(comment),
      },
      auth: {
        isLoggedIn: () => true,
      },
      utils: {
        normalizeHexPubkey: (value) => value,
      },
    });

    controller.modalCommentState.videoEventId = "VideoCaseMixed";

    const snapshot = {
      videoEventId: "videocasemixed",
      parentCommentId: null,
      commentsById: new Map([
        [
          "comment-1",
          {
            id: "comment-1",
            pubkey: "pk1",
            kind: COMMENT_EVENT_KIND,
            content: "First!",
            tags: [],
          },
        ],
      ]),
      childrenByParent: new Map([[null, ["comment-1"]]]),
      profiles: new Map(),
    };

    controller.handleCommentThreadReady(snapshot);

    const payload = {
      videoEventId: "  VIDEOCASEMIXED  ",
      commentsById: new Map([
        [
          "comment-2",
          {
            id: "comment-2",
            pubkey: "pk2",
            kind: COMMENT_EVENT_KIND,
            content: "Second!",
            tags: [],
          },
        ],
      ]),
      childrenByParent: new Map([[null, ["comment-2"]]]),
      commentIds: ["comment-2"],
      profiles: new Map(),
    };

    controller.handleCommentThreadAppend(payload);

    assert.equal(renderedSnapshots.length, 1, "snapshot should render despite casing");
    assert.equal(appended.length, 1, "append should accept trimmed, mixed-case IDs");
  },
);

test("VideoModal comment composer updates messaging and dispatches events", async (t) => {
  const { window, document, modal, cleanup } = await setupModal();
  t.after(cleanup);

  const defaultHint = modal.commentComposerDefaultHint;
  assert.ok(defaultHint);

  modal.setCommentComposerState({ disabled: true, reason: "login-required" });
  assert.equal(modal.commentsInput.disabled, true);
  assert.equal(modal.commentsComposer.hasAttribute("hidden"), false);
  assert.equal(modal.commentsDisabledPlaceholder.hasAttribute("hidden"), true);
  assert.equal(modal.commentComposerHint.textContent.trim(), "Log in to add a comment.");
  assert.equal(modal.commentsStatusMessage.textContent.trim(), "");

  modal.setCommentComposerState({ disabled: false, reason: "error" });
  assert.equal(modal.commentsInput.disabled, false);
  assert.equal(
    modal.commentsStatusMessage.textContent.includes(
      "We couldn't post your comment. Try again?",
    ),
    true,
  );
  assert.ok(modal.commentRetryButton, "retry button should be rendered for error state");

  modal.showCommentsDisabledMessage("Comments have been turned off for this video.");
  modal.setCommentComposerState({ disabled: true, reason: "disabled" });
  assert.equal(modal.commentsComposer.hasAttribute("hidden"), true);
  assert.equal(modal.commentsDisabledPlaceholder.hasAttribute("hidden"), false);

  modal.setCommentComposerState({ disabled: false, reason: "" });
  assert.equal(modal.commentsComposer.hasAttribute("hidden"), false);
  assert.equal(modal.commentsDisabledPlaceholder.hasAttribute("hidden"), true);

  // Ensure the hint text isn't empty after reset
  assert.ok(modal.commentComposerHint.textContent.trim().length > 0);

  const loginRequests = [];
  const submitEvents = [];
  modal.addEventListener("comment:login-required", (event) => {
    loginRequests.push(event.detail);
  });
  modal.addEventListener("comment:submit", (event) => {
    submitEvents.push(event.detail);
  });

  modal.setCommentComposerState({ disabled: true, reason: "login-required" });
  modal.commentsComposer.dispatchEvent(
    new window.Event("submit", { bubbles: true, cancelable: true }),
  );
  assert.equal(loginRequests.length, 1);
  assert.equal(submitEvents.length, 0);

  modal.setCommentComposerState({ disabled: false, reason: "" });
  modal.commentsInput.value = " New comment ";
  modal.updateCommentCharCount();
  modal.updateCommentSubmitState();
  assert.equal(modal.commentsSubmitButton.disabled, false);

  modal.commentsComposer.dispatchEvent(
    new window.Event("submit", { bubbles: true, cancelable: true }),
  );

  assert.equal(submitEvents.length, 1);
  const submitDetail = submitEvents[0];
  assert.deepStrictEqual(submitDetail.parentId, null);
  assert.equal(submitDetail.text, "New comment");
  assert.strictEqual(submitDetail.triggerElement, modal.commentsSubmitButton);
});

test(
  "VideoModalCommentController load preserves current video for submissions",
  async () => {
    const publishCalls = [];

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        teardown: () => {},
        defaultLimit: 10,
        loadThread: () => Promise.resolve(),
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentSectionCallbacks: () => {},
        hideCommentsDisabledMessage: () => {},
        showCommentsDisabledMessage: () => {},
        setCommentsVisibility: () => {},
        clearComments: () => {},
        resetCommentComposer: () => {},
        setCommentStatus: () => {},
        setCommentComposerState: () => {},
      },
      auth: {
        isLoggedIn: () => true,
      },
      services: {
        publishComment: async (payload) => {
          publishCalls.push(payload);
          return { ok: true, event: { id: "comment", tags: [] } };
        },
      },
    });

  const video = {
    id: "video123",
    pubkey: "AUTHORPK",
    enableComments: true,
    kind: 30078,
    tags: [["d", "video-root"]],
    videoRootId: "video-root",
    videoRootRelay: "wss://root.example",
  };

    controller.load(video);
    controller.submit({ text: "Nice" });

    await controller.modalCommentPublishPromise;

    assert.equal(publishCalls.length, 1, "publishComment should be called once");
    const payload = publishCalls[0];
    assert.equal(payload.videoEventId, "video123");
    assert.equal(payload.videoAuthorPubkey, "authorpk");
    assert.equal(payload.videoDefinitionAddress, "30078:authorpk:video-root");
    assert.equal(payload.rootIdentifier, "video-root");
    assert.equal(payload.rootIdentifierRelay, "wss://root.example");
  },
);

test(
  "VideoModalCommentController falls back to thread pointer when video tags are absent",
  async () => {
    const publishCalls = [];

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        teardown: () => {},
        defaultLimit: 10,
        loadThread: () => Promise.resolve(),
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentSectionCallbacks: () => {},
        hideCommentsDisabledMessage: () => {},
        showCommentsDisabledMessage: () => {},
        setCommentsVisibility: () => {},
        clearComments: () => {},
        resetCommentComposer: () => {},
        setCommentStatus: () => {},
        setCommentComposerState: () => {},
      },
      auth: {
        isLoggedIn: () => true,
      },
      services: {
        publishComment: async (payload) => {
          publishCalls.push(payload);
          return { ok: true, event: { id: "comment", tags: [] } };
        },
      },
    });

    const video = {
      id: "video456",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
      videoRootId: "video-root",
      videoRootRelay: "wss://root.example",
      // No tags provided; buildVideoAddressPointer should return an empty string.
    };

    controller.load(video);
    controller.modalCommentState.videoDefinitionAddress =
      " 30078:authorpk:video-root ";
    controller.modalCommentState.videoRootId = " video-root ";
    controller.modalCommentState.videoRootRelay = " wss://root.example ";

    controller.submit({ text: "Fallback pointer" });

    await controller.modalCommentPublishPromise;

    assert.equal(publishCalls.length, 1);
    const payload = publishCalls[0];
    assert.equal(
      payload.videoDefinitionAddress,
      "30078:authorpk:video-root",
      "publish payload should reuse pointer from the loaded thread",
    );
    assert.equal(payload.rootIdentifier, "video-root");
    assert.equal(payload.rootIdentifierRelay, "wss://root.example");
  },
);

test(
  "VideoModalCommentController preserves videoRootId when only root pointer is provided",
  async () => {
    const publishCalls = [];
    const loadTargets = [];
    let threadReady = null;

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: ({ onThreadReady }) => {
          threadReady = onThreadReady;
        },
        teardown: () => {},
        defaultLimit: 10,
        loadThread: async (target) => {
          loadTargets.push(target);
          return {};
        },
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentSectionCallbacks: () => {},
        hideCommentsDisabledMessage: () => {},
        showCommentsDisabledMessage: () => {},
        setCommentsVisibility: () => {},
        clearComments: () => {},
        resetCommentComposer: () => {},
        setCommentStatus: () => {},
        setCommentComposerState: () => {},
        renderComments: () => {},
      },
      auth: {
        isLoggedIn: () => true,
      },
      services: {
        publishComment: async (payload) => {
          publishCalls.push(payload);
          return { ok: true, event: { id: "comment", tags: [] } };
        },
      },
    });

    controller.commentThreadServiceReady = threadReady;

    const video = {
      id: "video789",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
      videoRootId: "root-only",
      videoRootRelay: "wss://root-only",
      tags: [],
    };

    controller.load(video);
    await Promise.resolve();

    assert.equal(loadTargets.length, 1, "loadThread should be invoked once");
    assert.equal(loadTargets[0]?.video?.videoRootId, "root-only");
    assert.equal(loadTargets[0]?.video?.videoRootRelay, "wss://root-only");

    const commentEvent = {
      id: "comment-root",
      pubkey: "commenter",
      kind: COMMENT_EVENT_KIND,
      content: "Root pointer only",
      tags: [["I", "root-only"], ["p", "AUTHORPK"]],
    };

    controller.handleCommentThreadReady({
      videoEventId: "video789",
      parentCommentId: null,
      rootIdentifier: "root-only",
      rootIdentifierRelay: "wss://root-only",
      commentsById: new Map([["comment-root", commentEvent]]),
      childrenByParent: new Map([[null, ["comment-root"]]]),
      profiles: new Map(),
    });

    controller.submit({ text: "Posting" });
    await controller.modalCommentPublishPromise;

    assert.equal(publishCalls.length, 1, "publishComment should use root pointer");
    const payload = publishCalls[0];
    assert.equal(payload.rootIdentifier, "root-only");
    assert.equal(payload.rootIdentifierRelay, "wss://root-only");
  },
);

test(
  "VideoModalCommentController uses pointerIdentifiers root id fallback",
  async () => {
    const publishCalls = [];
    const loadTargets = [];

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        teardown: () => {},
        defaultLimit: 10,
        loadThread: async (target) => {
          loadTargets.push(target);
          return {};
        },
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentSectionCallbacks: () => {},
        hideCommentsDisabledMessage: () => {},
        showCommentsDisabledMessage: () => {},
        setCommentsVisibility: () => {},
        clearComments: () => {},
        resetCommentComposer: () => {},
        setCommentStatus: () => {},
        setCommentComposerState: () => {},
        renderComments: () => {},
      },
      auth: {
        isLoggedIn: () => true,
      },
      services: {
        publishComment: async (payload) => {
          publishCalls.push(payload);
          return { ok: true, event: { id: "comment", tags: [] } };
        },
      },
    });

    const video = {
      id: "pointer-video",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
      pointerIdentifiers: {
        videoRootId: "pointer-root",
      },
    };

    controller.load(video);
    await Promise.resolve();

    assert.equal(loadTargets.length, 1, "loadThread should capture pointer target");
    assert.equal(
      loadTargets[0]?.video?.pointerIdentifiers?.videoRootId,
      "pointer-root",
      "pointerIdentifiers should carry the normalized root id",
    );

    controller.submit({ text: "Pointer fallback" });
    await controller.modalCommentPublishPromise;

    assert.equal(publishCalls.length, 1, "publishComment should run once");
    const payload = publishCalls[0];
    assert.equal(payload.rootIdentifier, "pointer-root");
  },
);

test(
  "VideoModalCommentController publishes comment using event id fallback",
  async () => {
    const publishCalls = [];
    const statusMessages = [];
    let resetCalled = false;
    const composerStates = [];
    const appendedEvents = [];

    const videoModal = {
      setCommentComposerState: (state) => {
        composerStates.push({ ...state });
      },
      resetCommentComposer: () => {
        resetCalled = true;
      },
      setCommentStatus: (message) => {
        statusMessages.push(message);
      },
      appendComment: (event) => {
        appendedEvents.push(event);
      },
    };

    const processedEvents = [];

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        processIncomingEvent: (event) => {
          processedEvents.push(event);
        },
      },
      videoModal,
      auth: {
        isLoggedIn: () => true,
      },
      services: {
        publishComment: async (payload, eventData) => {
          publishCalls.push([payload, eventData]);
          return {
            ok: true,
            event: {
              id: "legacy-comment",
              pubkey: "pk1",
              content: eventData.content,
              tags: [],
            },
          };
        },
      },
    });

    controller.currentVideo = {
      id: "legacy-video",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
      tags: [],
    };
    controller.modalCommentState.videoEventId = "legacy-video";

    await controller.handleVideoModalCommentSubmit({ text: "Legacy support" });

    assert.equal(publishCalls.length, 1, "publishComment should be invoked");
    const [payload, eventData] = publishCalls[0];
    assert.deepStrictEqual(payload, {
      videoEventId: "legacy-video",
      parentCommentId: null,
      videoKind: "30078",
      videoAuthorPubkey: "authorpk",
      rootKind: "30078",
      rootAuthorPubkey: "authorpk",
    });
    assert.equal(
      "videoDefinitionAddress" in payload,
      false,
      "payload should omit videoDefinitionAddress when unavailable",
    );
    assert.equal(eventData.content, "Legacy support");

    assert.equal(processedEvents.length, 1, "event should be processed optimistically");
    assert.equal(resetCalled, true, "composer should reset after publishing");
    assert.ok(
      statusMessages.includes("Comment posted."),
      "success message should be surfaced",
    );
    assert.equal(
      composerStates[composerStates.length - 1]?.disabled,
      false,
      "composer should be re-enabled after publishing",
    );
    assert.equal(appendedEvents.length, 0, "optimistic insert should avoid duplicate append");
  },
);

test(
  "VideoModalCommentController disposes safely during in-flight comment loads",
  async () => {
    const renderCalls = [];
    const appendCalls = [];
    const teardownCalls = [];
    const setCallbacksCalls = [];
    let onThreadReady = null;
    let onCommentsAppended = null;
    let resolveLoadThread;

    const commentThreadService = {
      defaultLimit: 5,
      setCallbacks: ({ onThreadReady: ready, onCommentsAppended: appended }) => {
        onThreadReady = ready;
        onCommentsAppended = appended;
      },
      loadThread: () =>
        new Promise((resolve) => {
          resolveLoadThread = resolve;
        }),
      teardown: () => {
        teardownCalls.push("teardown");
      },
      processIncomingEvent: () => {},
    };

    const videoModal = {
      setCommentSectionCallbacks: (callbacks) => {
        setCallbacksCalls.push(callbacks);
      },
      setCommentsVisibility: () => {},
      hideCommentsDisabledMessage: () => {},
      showCommentsDisabledMessage: () => {},
      clearComments: () => {},
      resetCommentComposer: () => {},
      setCommentStatus: () => {},
      setCommentComposerState: () => {},
      renderComments: (payload) => renderCalls.push(payload),
      appendComment: (payload) => appendCalls.push(payload),
    };

    const controller = new VideoModalCommentController({
      commentThreadService,
      videoModal,
      auth: { isLoggedIn: () => true },
      callbacks: {
        showError: () => {},
        showStatus: () => {},
        muteAuthor: () => Promise.resolve(),
        shouldHideAuthor: () => false,
      },
      services: {
        publishComment: async () => ({ ok: true, event: { id: "event", tags: [] } }),
      },
    });

    controller.load({
      id: "video-inflight",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
      tags: [],
    });

    await Promise.resolve();
    teardownCalls.length = 0; // ignore the initial dispose inside load

    controller.dispose();

    assert.equal(teardownCalls.length, 1, "dispose should teardown the active thread");
    assert.equal(
      setCallbacksCalls.length > 0,
      true,
      "comment callbacks should be registered even before load resolves",
    );

    resolveLoadThread?.();
    await Promise.resolve();

    onThreadReady?.({
      videoEventId: "video-inflight",
      parentCommentId: null,
      commentsById: new Map([["event-1", { id: "event-1", pubkey: "pk1" }]]),
      childrenByParent: new Map([[null, ["event-1"]]]),
      profiles: new Map(),
    });

    assert.equal(renderCalls.length, 0, "stale thread payloads should be ignored after dispose");

    onCommentsAppended?.({
      videoEventId: "video-inflight",
      parentCommentId: null,
      commentIds: ["event-1"],
      commentsById: new Map([["event-1", { id: "event-1", pubkey: "pk1" }]]),
      childrenByParent: new Map([[null, ["event-1"]]]),
      profiles: new Map(),
    });

    assert.equal(
      appendCalls.length,
      0,
      "stale appends should not render duplicate comments after dispose",
    );
  },
);

test(
  "VideoModalCommentController prompts login when publish requires authentication",
  async () => {
    const composerStates = [];
    const loginLifecycle = [];
    const errorMessages = [];

    const loginModal = {
      openModal: ({ triggerElement } = {}) => {
        loginLifecycle.push({ type: "openModal", triggerElement });
        return true;
      },
    };

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentComposerState: (state) => {
          composerStates.push({ ...state });
        },
        resetCommentComposer: () => {
          throw new Error("composer should not reset when auth is required");
        },
        setCommentStatus: () => {},
        appendComment: () => {},
      },
      auth: {
        isLoggedIn: () => true,
        initializeLoginModalController: ({ logIfMissing }) => {
          loginLifecycle.push({ type: "initialize", logIfMissing });
        },
        getLoginModalController: () => loginModal,
        requestLogin: ({ allowAccountSelection }) => {
          loginLifecycle.push({ type: "request", allowAccountSelection });
          return Promise.resolve(true);
        },
      },
      callbacks: {
        showError: (message) => {
          errorMessages.push(message);
        },
        showStatus: () => {},
        muteAuthor: () => Promise.resolve(),
        shouldHideAuthor: () => false,
      },
      services: {
        publishComment: async () => ({ ok: false, error: "auth-required" }),
      },
      utils: {
        normalizeHexPubkey: (value) => value?.toLowerCase?.() || value,
      },
    });

    controller.currentVideo = {
      id: "video-auth",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
      tags: [],
    };
    controller.modalCommentState.videoEventId = "video-auth";
    controller.modalCommentState.videoKind = "30078";
    controller.modalCommentState.videoAuthorPubkey = "AUTHORPK";

    const triggerElement = { id: "comment-trigger" };

    await controller.handleVideoModalCommentSubmit({
      text: "Needs auth",
      triggerElement,
    });

    const lastComposerState = composerStates[composerStates.length - 1];
    assert.deepStrictEqual(
      lastComposerState,
      { disabled: true, reason: "login-required" },
      "composer should remain disabled while prompting for login",
    );
    assert.equal(errorMessages.length, 0, "auth-required should not surface as an error");

    assert.equal(
      loginLifecycle.some((step) => step.type === "initialize"),
      true,
      "login modal controller should be initialized",
    );
    assert.equal(
      loginLifecycle.some((step) => step.type === "openModal"),
      true,
      "login modal should attempt to open",
    );
    const modalOpen = loginLifecycle.find((step) => step.type === "openModal");
    assert.equal(
      modalOpen?.triggerElement,
      triggerElement,
      "trigger element should propagate to login modal",
    );
  },
);

test(
  "VideoModalCommentController includes parent metadata when replying",
  async () => {
    const publishCalls = [];

    const parentEvent = {
      id: "parent-1",
      kind: COMMENT_EVENT_KIND,
      pubkey: "parentpk",
      tags: [],
    };

    const controller = new VideoModalCommentController({
      commentThreadService: {
        setCallbacks: () => {},
        getCommentEvent: (id) => (id === "parent-1" ? parentEvent : null),
        processIncomingEvent: () => {},
      },
      videoModal: {
        setCommentComposerState: () => {},
        setCommentStatus: () => {},
        resetCommentComposer: () => {},
        appendComment: () => {},
      },
      auth: {
        isLoggedIn: () => true,
      },
      services: {
        publishComment: async (payload) => {
          publishCalls.push(payload);
          return { ok: true, event: { id: "reply", tags: [] } };
        },
      },
    });

    controller.currentVideo = {
      id: "video123",
      pubkey: "AUTHORPK",
      enableComments: true,
      kind: 30078,
    };
    controller.modalCommentState = {
      videoEventId: "video123",
      videoDefinitionAddress: null,
      videoKind: "30078",
      videoAuthorPubkey: "AUTHORPK",
      videoRootId: null,
      videoRootRelay: null,
      parentCommentId: "parent-1",
      parentCommentKind: String(COMMENT_EVENT_KIND),
      parentCommentPubkey: null,
    };

    await controller.handleVideoModalCommentSubmit({
      text: "Replying",
      parentId: "parent-1",
    });

    assert.equal(publishCalls.length, 1, "reply should trigger publish call");
    const payload = publishCalls[0];
    assert.equal(payload.videoEventId, "video123");
    assert.equal(payload.videoKind, "30078");
    assert.equal(payload.videoAuthorPubkey, "authorpk");
    assert.equal(payload.parentCommentId, "parent-1");
    assert.equal(payload.parentCommentKind, String(COMMENT_EVENT_KIND));
    assert.equal(payload.parentCommentPubkey, "parentpk");
    assert.equal(payload.parentAuthorPubkey, "parentpk");
    assert.equal(payload.rootAuthorPubkey, "authorpk");
  },
);

test("VideoModal comment section exposes aria landmarks and participates in focus trap", async (t) => {
  const { window, document, modal, playerModal, trigger, cleanup } = await setupModal();
  t.after(cleanup);

  modal.open(null, { triggerElement: trigger });
  await Promise.resolve();

  const commentsRoot = document.querySelector("[data-comments-root]");
  const commentsHeading = document.getElementById("videoModalCommentsHeading");
  assert.ok(commentsRoot, "comment root should exist when modal opens");
  assert.ok(commentsHeading, "comment heading should exist");
  assert.equal(commentsRoot.getAttribute("role"), "region");
  assert.equal(commentsRoot.getAttribute("aria-labelledby"), commentsHeading.id);
  assert.equal(modal.commentsComposer.getAttribute("aria-labelledby"), commentsHeading.id);

  const commentInput = document.querySelector("[data-comments-input]");
  assert.ok(commentInput, "comment textarea should exist");
  assert.equal(
    commentInput.getAttribute("aria-describedby"),
    "commentComposerHelp commentComposerCount",
  );

  const focusableElements = Array.from(
    playerModal.querySelectorAll(FOCUSABLE_SELECTOR),
  );
  focusableElements.forEach((element) => {
    if (element === commentInput) {
      element.removeAttribute("tabindex");
      element.disabled = false;
      return;
    }
    if (typeof element.disabled === "boolean") {
      element.disabled = true;
    }
    element.setAttribute("tabindex", "-1");
  });

  commentInput.focus();
  const tabEvent = new window.KeyboardEvent("keydown", {
    key: "Tab",
    bubbles: true,
    cancelable: true,
  });
  commentInput.dispatchEvent(tabEvent);

  assert.equal(tabEvent.defaultPrevented, true, "focus trap should intercept Tab");
  const activeAfter = document.activeElement;
  assert.ok(
    activeAfter === commentInput || activeAfter === modal.modalPanel,
    "focus trap should keep focus within the modal",
  );

  modal.close();
});