KrakensLab
/
oasis


			
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							"use strict";

const path = require("path");
const envPaths = require("env-paths");
const fs = require("fs");

const homedir = require('os').homedir();
const supportingPath = path.join(homedir, ".ssb/flume/contacts2.json");
const offsetPath = path.join(homedir, ".ssb/flume/log.offset");

const debug = require("debug")("oasis");
const highlightJs = require("highlight.js");

const MarkdownIt = require("markdown-it");
const prettyMs = require("pretty-ms");

const updater = require("../updater.js");
global.updaterequired = "";
global.ck = updater.getRemoteVersion(async function(checkversion){
  if (checkversion === "required"){
    ck = "required";
  }
});

const {
  a,
  article,
  br,
  body,
  button,
  details,
  div,
  em,
  footer,
  form,
  h1,
  h2,
  head,
  header,
  hr,
  html,
  img,
  input,
  label,
  li,
  link,
  main,
  meta,
  nav,
  option,
  p,
  pre,
  progress,
  section,
  select,
  span,
  summary,
  textarea,
  title,
  ul,
} = require("hyperaxe");

const { about, blob, vote } = require("../models")({});

const lodash = require("lodash");
const markdown = require("./markdown");

const i18nBase = require("./i18n");

let selectedLanguage = "en";
let i18n = i18nBase[selectedLanguage];

exports.setLanguage = (language) => {
  selectedLanguage = language;
  i18n = Object.assign({}, i18nBase.en, i18nBase[language]);
};

const markdownUrl = "https://commonmark.org/help/";
const snhUrl = "https://solarnethub.com/";

const doctypeString = "<!DOCTYPE html>";

const THREAD_PREVIEW_LENGTH = 3;

const toAttributes = (obj) =>
  Object.entries(obj)
    .map(([key, val]) => `${key}=${val}`)
    .join(", ");

// non-breaking space
const nbsp = "\xa0";

const template = (titlePrefix, ...elements) => {
  const navLink = ({ href, emoji, text }) =>
    li(
      a(
        { href, class: titlePrefix === text ? "current" : "" },
        span({ class: "emoji" }, emoji),

        nbsp,

        text

      )

    );

  const customCSS = (filename) => {
    const customStyleFile = path.join(
      envPaths("oasis", { suffix: "" }).config,
      filename
    );
    try {
      if (fs.existsSync(customStyleFile)) {
        return link({ rel: "stylesheet", href: filename });
      }
    } catch (error) {
      return "";
    }
  };

  const nodes = html(
    { lang: "en" },
    head(
      title(titlePrefix, " | SNH-Oasis"),
      link({ rel: "stylesheet", href: "/theme.css" }),
      link({ rel: "stylesheet", href: "/assets/style.css" }),
      link({ rel: "stylesheet", href: "/assets/highlight.css" }),
      customCSS("/custom-style.css"),
      link({ rel: "icon", type: "image/svg+xml", href: "/assets/favicon.svg" }),
      meta({ charset: "utf-8" }),
      meta({
        name: "description",
        content: i18n.oasisDescription,
      }),
      meta({
        name: "viewport",
        content: toAttributes({ width: "device-width", "initial-scale": 1 }),
      })
    ),
    body(
      nav(
        ul(
          //navLink({ href: "/imageSearch", emoji: "✧", text: i18n.imageSearch }),
          navLink({ href: "/public/latest/extended", emoji: "∞", text: i18n.extended }),
          navLink({ href: "/public/popular/day", emoji: "⌘", text: i18n.popular }),
          navLink({ href: "/public/latest/threads", emoji: "♺", text: i18n.threads }),
          navLink({ href: "/public/latest", emoji: "☄", text: i18n.latest }),
          navLink({ href: "/public/latest/topics", emoji: "ϟ", text: i18n.topics }),
          navLink({ href: "/public/latest/summaries", emoji: "※", text: i18n.summaries }),
          navLink({ href: "/mentions", emoji: "✺", text: i18n.mentions }),
        )
      ),
      main({ id: "content" }, elements),
      nav(
        ul(
          navLink({ href: "/publish", emoji: "❂",text: i18n.publish }),
          navLink({ href: "/search", emoji: "✦", text: i18n.search }),
          navLink({ href: "/inbox", emoji: "☂", text: i18n.private }),
          navLink({ href: "/profile", emoji: "⚉", text: i18n.profile }),
          navLink({ href: "/invites", emoji: "❄", text: i18n.invites }),
          navLink({ href: "/peers", emoji: "⧖", text: i18n.peers }),
          navLink({ href: "/settings", emoji: "⚙", text: i18n.settings })
        )
      )
    )
  );

  const result = doctypeString + nodes.outerHTML;

  return result;
};

const thread = (messages) => {
  // this first loop is preprocessing to enable auto-expansion of forks when a
  // message in the fork is linked to

  let lookingForTarget = true;
  let shallowest = Infinity;

  for (let i = messages.length - 1; i >= 0; i--) {
    const msg = messages[i];
    const depth = lodash.get(msg, "value.meta.thread.depth", 0);

    if (lookingForTarget) {
      const isThreadTarget = Boolean(
        lodash.get(msg, "value.meta.thread.target", false)
      );

      if (isThreadTarget) {
        lookingForTarget = false;
      }
    } else {
      if (depth < shallowest) {
        lodash.set(msg, "value.meta.thread.ancestorOfTarget", true);
        shallowest = depth;
      }
    }
  }

  const msgList = [];
  for (let i = 0; i < messages.length; i++) {
    const j = i + 1;

    const currentMsg = messages[i];
    const nextMsg = messages[j];

    const depth = (msg) => {
      // will be undefined when checking depth(nextMsg) when currentMsg is the
      // last message in the thread
      if (msg === undefined) return 0;
      return lodash.get(msg, "value.meta.thread.depth", 0);
    };

    msgList.push(post({ msg: currentMsg }).outerHTML);

    if (depth(currentMsg) < depth(nextMsg)) {
      const isAncestor = Boolean(
        lodash.get(currentMsg, "value.meta.thread.ancestorOfTarget", false)
      );
      const isBlocked = Boolean(nextMsg.value.meta.blocking);
      msgList.push(`<div class="indent"><details ${isAncestor ? "open" : ""}>`);

      const nextAuthor = lodash.get(nextMsg, "value.meta.author.name");
      const nextSnippet = postSnippet(
        lodash.has(nextMsg, "value.content.contentWarning")
          ? lodash.get(nextMsg, "value.content.contentWarning")
          : lodash.get(nextMsg, "value.content.text")
      );
      msgList.push(
        summary(
          isBlocked
            ? i18n.relationshipBlockingPost
            : `${nextAuthor}: ${nextSnippet}`
        ).outerHTML
      );
    } else if (depth(currentMsg) > depth(nextMsg)) {
      // getting more shallow
      const diffDepth = depth(currentMsg) - depth(nextMsg);

      const shallowList = [];
      for (let d = 0; d < diffDepth; d++) {
        // on the way up it might go several depths at once
        shallowList.push("</details></div>");
      }

      msgList.push(shallowList);
    }
  }

  const htmlStrings = lodash.flatten(msgList);
  return div(
    {},
    { class: "thread-container", innerHTML: htmlStrings.join("") }

  );
};

const postSnippet = (text) => {
  const max = 40;

  text = text.trim().split("\n", 3).join("\n");
  // this is taken directly from patchwork. i'm not entirely sure what this
  // regex is doing
  text = text.replace(/_|`|\*|#|^\[@.*?]|\[|]|\(\S*?\)/g, "").trim();
  text = text.replace(/:$/, "");
  text = text.trim().split("\n", 1)[0].trim();

  if (text.length > max) {
    text = text.substring(0, max - 1) + "…";
  }

  return text;
};

/**

 * Render a section containing a link that takes users to the context for a

 * thread preview.

 *

 * @param {Array} thread with SSB message objects

 * @param {Boolean} isComment true if this is shown in the context of a comment

 *  instead of a post

 */
const continueThreadComponent = (thread, isComment) => {
  const encoded = {
    next: encodeURIComponent(thread[THREAD_PREVIEW_LENGTH + 1].key),
    parent: encodeURIComponent(thread[0].key),
  };
  const left = thread.length - (THREAD_PREVIEW_LENGTH + 1);
  let continueLink;
  if (isComment == false) {
    continueLink = `/thread/${encoded.parent}#${encoded.next}`;
    return a(
      { href: continueLink },
      `continue reading ${left} more comment${left === 1 ? "" : "s"}`
    );
  } else {
    continueLink = `/thread/${encoded.parent}`;
    return a({ href: continueLink }, "read the rest of the thread");
  }
};

/**

 * Render an aside with a preview of comments on a message

 *

 * For posts, up to three comments are shown, for comments, up to 3 messages

 * directly following this one in the thread are displayed. If there are more

 * messages in the thread, a link is rendered that links to the rest of the

 * context.

 *

 * @param {Object} post for which to display the aside

 */
const postAside = ({ key, value }) => {
  const thread = value.meta.thread;
  if (thread == null) return null;

  const isComment = value.meta.postType === "comment";

  let postsToShow;
  if (isComment) {
    const commentPosition = thread.findIndex((msg) => msg.key === key);
    postsToShow = thread.slice(
      commentPosition + 1,
      Math.min(commentPosition + (THREAD_PREVIEW_LENGTH + 1), thread.length)
    );
  } else {
    postsToShow = thread.slice(
      1,
      Math.min(thread.length, THREAD_PREVIEW_LENGTH + 1)
    );
  }

  const fragments = postsToShow.map((p) => post({ msg: p }));

  if (thread.length > THREAD_PREVIEW_LENGTH + 1) {
    fragments.push(section(continueThreadComponent(thread, isComment)));
  }

  return div({ class: "indent" }, fragments);
};

const post = ({ msg, aside = false }) => {
  const encoded = {
    key: encodeURIComponent(msg.key),
    author: encodeURIComponent(msg.value.author),
    parent: encodeURIComponent(msg.value.content.root),
  };

  const url = {
    author: `/author/${encoded.author}`,
    likeForm: `/like/${encoded.key}`,
    link: `/thread/${encoded.key}#${encoded.key}`,
    parent: `/thread/${encoded.parent}#${encoded.parent}`,
    avatar: msg.value.meta.author.avatar.url,
    json: `/json/${encoded.key}`,
    subtopic: `/subtopic/${encoded.key}`,
    comment: `/comment/${encoded.key}`,
  };

  const isPrivate = Boolean(msg.value.meta.private);
  const isBlocked = Boolean(msg.value.meta.blocking);
  const isRoot = msg.value.content.root == null;
  const isFork = msg.value.meta.postType === "subtopic";
  const hasContentWarning =
    typeof msg.value.content.contentWarning === "string";
  const isThreadTarget = Boolean(
    lodash.get(msg, "value.meta.thread.target", false)
  );

  const { name } = msg.value.meta.author;

  const ts_received = msg.value.meta.timestamp.received;
  const timeAgo = ts_received.since.replace("~", "");
  const timeAbsolute = ts_received.iso8601.split(".")[0].replace("T", " ");

  const markdownContent = markdown(
    msg.value.content.text,
    msg.value.content.mentions
  );

  const likeButton = msg.value.meta.voted
    ? { value: 0, class: "liked" }

    : { value: 1, class: null };

  const likeCount = msg.value.meta.votes.length;
  const maxLikedNameLength = 16;
  const maxLikedNames = 16;

  const likedByNames = msg.value.meta.votes
    .slice(0, maxLikedNames)
    .map((person) => person.name)
    .map((name) => name.slice(0, maxLikedNameLength))
    .join(", ");

  const additionalLikesMessage =
    likeCount > maxLikedNames ? `+${likeCount - maxLikedNames} more` : ``;

  const likedByMessage =
    likeCount > 0 ? `${likedByNames} ${additionalLikesMessage}` : null;

  const messageClasses = ["post"];

  const recps = [];

  const addRecps = (recpsInfo) => {
    recpsInfo.forEach(function (recp) {
      recps.push(
        a(
          { href: `/author/${encodeURIComponent(recp.feedId)}` },
          img({ class: "avatar", src: recp.avatarUrl, alt: "" })

        )

      );
    });
  };

  if (isPrivate) {
    messageClasses.push("private");
    addRecps(msg.value.meta.recpsInfo);
  }

  if (isThreadTarget) {
    messageClasses.push("thread-target");
  }

  // TODO: Refactor to stop using strings and use constants/symbols.
  const postOptions = {
    post: null,
    comment: i18n.commentDescription({ parentUrl: url.parent }),
    subtopic: i18n.subtopicDescription({ parentUrl: url.parent }),
    mystery: i18n.mysteryDescription,
  };

  const emptyContent = "<p>undefined</p>\n";
  const articleElement =
    markdownContent === emptyContent
      ? article(
          { class: "content" },

          pre({
            innerHTML: highlightJs.highlight(
              "json",
              JSON.stringify(msg, null, 2)
            ).value,
          })
        )
      : article({ class: "content", innerHTML: markdownContent });

  if (isBlocked) {
    messageClasses.push("blocked");
    return section(
      {
        id: msg.key,
        class: messageClasses.join(" "),

      },

      i18n.relationshipBlockingPost

    );
  }

  const articleContent = hasContentWarning
    ? details(summary(msg.value.content.contentWarning), articleElement)
    : articleElement;

  const fragment = section(
    {
      id: msg.key,
      class: messageClasses.join(" "),

    },

    header(

      div(

        span(

          { class: "author" },

          a(

            { href: url.author },
            img({ class: "avatar", src: url.avatar, alt: "" }),

            name

          )

        ),

        span({ class: "author-action" }, postOptions[msg.value.meta.postType]),

        span(

          {
            class: "time",

            title: timeAbsolute,

          },

          isPrivate ? "🔒" : null,

          isPrivate ? recps : null,

          a({ href: url.link }, nbsp, timeAgo)
        )
      )
    ),
    articleContent,

    // HACK: centered-footer
    //
    // Here we create an empty div with an anchor tag that can be linked to.
    // In our CSS we ensure that this gets centered on the screen when we
    // link to this anchor tag.
    //
    // This is used for redirecting users after they like a post, when we
    // want the like button that they just clicked to remain close-ish to
    // where it was before they clicked the button.
    div({ id: `centered-footer-${encoded.key}`, class: "centered-footer" }),


    footer(

      div(

        form(

          { action: url.likeForm, method: "post" },
          button(
            {
              name: "voteValue",
              type: "submit",
              value: likeButton.value,
              class: likeButton.class,

              title: likedByMessage,

            },

            `☉ ${likeCount}`

          )

        ),

        a({ href: url.comment }, i18n.comment),

        isPrivate || isRoot || isFork

          ? null

          : a({ href: url.subtopic }, nbsp, i18n.subtopic),

        a({ href: url.json }, nbsp, i18n.json)

      ),

      br()

    )

  );


  const threadSeparator = [div({ class: "text-browser" }, hr(), br())];


  if (aside) {

    return [fragment, postAside(msg), isRoot ? threadSeparator : null];

  } else {

    return fragment;

  }

};


exports.editProfileView = ({ name, description }) =>

  template(

    i18n.editProfile,

    section(

      h1(i18n.editProfile),

      p(i18n.editProfileDescription),

      form(

        {

          action: "/profile/edit",

          method: "POST",

          enctype: "multipart/form-data",

        },

        label(

          i18n.profileImage,

          input({ type: "file", name: "image", accept: "image/*" })

        ),

        label(i18n.profileName, input({ name: "name", value: name })),

        label(

          i18n.profileDescription,

          textarea(

            {

              autofocus: true,

              name: "description",

            },

            description

          )

        ),

        button(

          {

            type: "submit",

          },

          i18n.submit

        )

      )

    )

  );


/**

 * @param {{avatarUrl: string, description: string, feedId: string, messages: any[], name: string, relationship: object, firstPost: object, lastPost: object}} input

 */

exports.authorView = ({

  avatarUrl,

  description,

  feedId,

  messages,

  firstPost,

  lastPost,

  name,

  relationship,

}) => {

  const mention = `[@${name}](${feedId})`;

  const markdownMention = highlightJs.highlight("markdown", mention).value;


  const contactForms = [];


  const addForm = ({ action }) =>

    contactForms.push(

      form(

        {

          action: `/${action}/${encodeURIComponent(feedId)}`,

          method: "post",

        },

        button(

          {

            type: "submit",

          },

          i18n[action]

        )

      )

    );


  if (relationship.me === false) {

    if (relationship.following) {

      addForm({ action: "unfollow" });

    } else if (relationship.blocking) {

      addForm({ action: "unblock" });

    } else {

      addForm({ action: "follow" });

      addForm({ action: "block" });

    }

  }


  const relationshipText = (() => {

    if (relationship.me === true) {

      return i18n.relationshipYou;

    } else if (

      relationship.following === true &&

      relationship.blocking === false

    ) {

      return i18n.relationshipFollowing;

    } else if (

      relationship.following === false &&

      relationship.blocking === true

    ) {

      return i18n.relationshipBlocking;

    } else if (

      relationship.following === false &&

      relationship.blocking === false

    ) {

      return i18n.relationshipNone;

    } else if (

      relationship.following === true &&

      relationship.blocking === true

    ) {

      return i18n.relationshipConflict;

    } else {

      throw new Error(`Unknown relationship ${JSON.stringify(relationship)}`);

    }

  })();


  const prefix = section(

    { class: "message" },

    div(

      { class: "profile" },

      img({ class: "avatar", src: avatarUrl }),

      h1(name)

    ),

    pre({

      class: "md-mention",

      innerHTML: markdownMention,

    }),

    description !== "" ? article({ innerHTML: markdown(description) }) : null,

    footer(

      div(

        a({ href: `/likes/${encodeURIComponent(feedId)}` }, i18n.viewLikes),

        span(nbsp, relationshipText),

        ...contactForms,

        relationship.me

          ? a({ href: `/profile/edit` }, nbsp, i18n.editProfile)

          : null

      ),

      br()

    )

  );


  const linkUrl = relationship.me

    ? "/profile/"

    : `/author/${encodeURIComponent(feedId)}/`;


  let items = messages.map((msg) => post({ msg }));

  if (items.length === 0) {

    if (lastPost === undefined) {

      items.push(section(div(span(i18n.feedEmpty))));

    } else {

      items.push(

        section(

          div(

            span(i18n.feedRangeEmpty),

            a({ href: `${linkUrl}` }, i18n.seeFullFeed)

          )

        )

      );

    }

  } else {

    const highestSeqNum = messages[0].value.sequence;

    const lowestSeqNum = messages[messages.length - 1].value.sequence;

    let newerPostsLink;

    if (lastPost !== undefined && highestSeqNum < lastPost.value.sequence)

      newerPostsLink = a(

        { href: `${linkUrl}?gt=${highestSeqNum}` },

        i18n.newerPosts

      );

    else newerPostsLink = span(i18n.newerPosts, { title: i18n.noNewerPosts });

    let olderPostsLink;

    if (lowestSeqNum > firstPost.value.sequence)

      olderPostsLink = a(

        { href: `${linkUrl}?lt=${lowestSeqNum}` },

        i18n.olderPosts

      );

    else

      olderPostsLink = span(i18n.olderPosts, { title: i18n.beginningOfFeed });

    const pagination = section(

      { class: "message" },

      footer(div(newerPostsLink, olderPostsLink), br())

    );

    items.unshift(pagination);

    items.push(pagination);

  }


  return template(i18n.profile, prefix, items);

};


exports.previewCommentView = async ({

  previewData,

  messages,

  myFeedId,

  parentMessage,

  contentWarning,

}) => {

  const publishAction = `/comment/${encodeURIComponent(messages[0].key)}`;


  const preview = generatePreview({

    previewData,

    contentWarning,

    action: publishAction,

  });

  return exports.commentView(

    { messages, myFeedId, parentMessage },

    preview,

    previewData.text,

    contentWarning

  );

};


exports.commentView = async (

  { messages, myFeedId, parentMessage },

  preview,

  text,

  contentWarning

) => {

  let markdownMention;


  const messageElements = await Promise.all(

    messages.reverse().map((message) => {

      debug("%O", message);

      const authorName = message.value.meta.author.name;

      const authorFeedId = message.value.author;

      if (authorFeedId !== myFeedId) {

        if (message.key === parentMessage.key) {

          const x = `[@${authorName}](${authorFeedId})\n\n`;

          markdownMention = x;

        }

      }

      return post({ msg: message });

    })

  );


  const action = `/comment/preview/${encodeURIComponent(messages[0].key)}`;

  const method = "post";


  const isPrivate = parentMessage.value.meta.private;

  const authorName = parentMessage.value.meta.author.name;


  const publicOrPrivate = isPrivate ? i18n.commentPrivate : i18n.commentPublic;

  const maybeSubtopicText = isPrivate ? [null] : i18n.commentWarning;


  return template(

    i18n.commentTitle({ authorName }),

    div({ class: "thread-container" }, messageElements),

    preview !== undefined ? preview : "",

    p(

      ...i18n.commentLabel({ publicOrPrivate, markdownUrl }),

      ...maybeSubtopicText

    ),

    form(

      { action, method, enctype: "multipart/form-data" },

      label(

        i18n.contentWarningLabel,

        input({

          name: "contentWarning",

          type: "text",

          class: "contentWarning",

          value: contentWarning ? contentWarning : "",

          placeholder: i18n.contentWarningPlaceholder,

        })

      ),

      textarea(

        {

          autofocus: true,

          required: true,

          name: "text",

        },

        text ? text : isPrivate ? null : markdownMention

      ),

      button({ type: "submit" }, i18n.preview),

      label({ class: "file-button", for: "blob" }, i18n.attachFiles),

      input({ type: "file", id: "blob", name: "blob" })

    )

  );

};


exports.mentionsView = ({ messages }) => {

  return messageListView({

    messages,

    viewTitle: i18n.mentions,

    viewDescription: i18n.mentionsDescription,

  });

};


exports.privateView = ({ messages }) => {

  return messageListView({

    messages,

    viewTitle: i18n.private,

    viewDescription: i18n.privateDescription,

  });

};


exports.publishCustomView = async () => {

  const action = "/publish/custom";

  const method = "post";


  return template(

    i18n.publishCustom,

    section(

      h1(i18n.publishCustom),

      p(i18n.publishCustomDescription),

      form(

        { action, method },

        textarea(

          {

            autofocus: true,

            required: true,

            name: "text",

          },

          "{\n",

          '  "type": "test",\n',

          '  "hello": "world"\n',

          "}"

        ),

        button(

          {

            type: "submit",

          },

          i18n.submit

        )

      )

    ),

    p(i18n.publishBasicInfo({ href: "/publish" }))

  );

};


exports.threadView = ({ messages }) => {

  const rootMessage = messages[0];

  const rootAuthorName = rootMessage.value.meta.author.name;

  const rootSnippet = postSnippet(

    lodash.get(rootMessage, "value.content.text", i18n.mysteryDescription)

  );

  return template([`@${rootAuthorName}: `, rootSnippet], thread(messages));

};


exports.publishView = (preview, text, contentWarning) => {

  return template(

    i18n.publish,

    section(

      h1(i18n.publish),

      form(

        {

          action: "/publish/preview",

          method: "post",

          enctype: "multipart/form-data",

        },

        label(

          i18n.publishLabel({ markdownUrl, linkTarget: "_blank" }),

        label(

          i18n.contentWarningLabel,

          input({

            name: "contentWarning",

            type: "text",

            class: "contentWarning",

            value: contentWarning ? contentWarning : "",

            placeholder: i18n.contentWarningPlaceholder,

          })

        ),

          textarea({ required: true, name: "text", placeholder: i18n.publishWarningPlaceholder }, text ? text : "")

        ),

        button({ type: "submit" }, i18n.preview),

        label({ class: "file-button", for: "blob" }, i18n.attachFiles),

        input({ type: "file", id: "blob", name: "blob" })

      )

    ),

    preview ? preview : "",

    p(i18n.publishCustomInfo({ href: "/publish/custom" }))

  );

};


const generatePreview = ({ previewData, contentWarning, action }) => {

  const { authorMeta, text, mentions } = previewData;


  // craft message that looks like it came from the db

  // cb: this kinda fragile imo? this is for getting a proper post styling ya?

  const msg = {

    key: "%non-existent.preview",

    value: {

      author: authorMeta.id,

      // sequence: -1,

      content: {

        type: "post",

        text: text,

      },

      timestamp: Date.now(),

      meta: {

        isPrivate: true,

        votes: [],

        author: {

          name: authorMeta.name,

          avatar: {

            url: `/image/64/${encodeURIComponent(authorMeta.image)}`,

          },

        },

      },

    },

  };

  if (contentWarning) msg.value.content.contentWarning = contentWarning;

  const ts = new Date(msg.value.timestamp);

  lodash.set(msg, "value.meta.timestamp.received.iso8601", ts.toISOString());

  const ago = Date.now() - Number(ts);

  const prettyAgo = prettyMs(ago, { compact: true });

  lodash.set(msg, "value.meta.timestamp.received.since", prettyAgo);

  return div(

    Object.keys(mentions).length === 0

      ? ""

      : section(

          { class: "mention-suggestions" },

          h2(i18n.mentionsMatching),

          Object.keys(mentions).map((name) => {

            let matches = mentions[name];


            return div(

              matches.map((m) => {

                let relationship = { emoji: "", desc: "" };

                if (m.rel.followsMe && m.rel.following) {

                  relationship.emoji = "☍";

                  relationship.desc = i18n.relationshipMutuals;

                } else if (m.rel.following) {

                  relationship.emoji = "☌";

                  relationship.desc = i18n.relationshipFollowing;

                } else if (m.rel.followsMe) {

                  relationship.emoji = "⚼";

                  relationship.desc = i18n.relationshipTheyFollow;

                } else {

                  relationship.emoji = "❓";

                  relationship.desc = i18n.relationshipNotFollowing;

                }

                return div(

                  { class: "mentions-container" },

                  a(

                    {

                      class: "mentions-image",

                      href: `/author/${encodeURIComponent(m.feed)}`,

                    },

                    img({ src: `/image/64/${encodeURIComponent(m.img)}` })

                  ),

                  a(

                    {

                      class: "mentions-name",

                      href: `/author/${encodeURIComponent(m.feed)}`,

                    },

                    m.name

                  ),

                  div(

                    { class: "emo-rel" },

                    span(

                      { class: "emoji", title: relationship.desc },

                      relationship.emoji

                    ),

                    span(

                      { class: "mentions-listing" },

                      `[@${m.name}](${m.feed})`

                    )

                  )

                );

              })

            );

          })

        ),

    section(

      { class: "post-preview" },

      post({ msg }),


      // doesn't need blobs, preview adds them to the text

      form(

        { action, method: "post" },

        input({

          name: "contentWarning",

          type: "hidden",

          value: contentWarning,

        }),

        input({

          name: "text",

          type: "hidden",

          value: text,

        }),

        button({ type: "submit" }, i18n.publish)

      )

    )

  );

};


exports.previewView = ({ previewData, contentWarning }) => {

  const publishAction = "/publish";


  const preview = generatePreview({

    previewData,

    contentWarning,

    action: publishAction,

  });

  return exports.publishView(preview, previewData.text, contentWarning);

};


exports.peersView = async ({ peers }) => {


 const startButton = form(

    { action: "/settings/conn/start", method: "post" },

    button({ type: "submit" }, i18n.startNetworking)

  );


  const restartButton = form(

    { action: "/settings/conn/restart", method: "post" },

    button({ type: "submit" }, i18n.restartNetworking)

  );


  const stopButton = form(

    { action: "/settings/conn/stop", method: "post" },

    button({ type: "submit" }, i18n.stopNetworking)

  );


  const syncButton = form(

    { action: "/settings/conn/sync", method: "post" },

    button({ type: "submit" }, i18n.sync)

  );


  const connButtons = div({ class: "form-button-group" }, [

    startButton,

    restartButton,

    stopButton,

    syncButton,

  ]);


  const peerList = (peers || [])

    .filter(([, data]) => data.state === "connected")

    .map(([, data]) => {

      return li(

        a(

          { href: `/author/${encodeURIComponent(data.key)}` },

          data.name || data.host || data.key

        )

      );

   });


  const supportedList = (supporting)

    var supporting = JSON.parse(fs.readFileSync(supportingPath, "utf8")).value;

    var arr = [];

    var keys = Object.keys(supporting);

      var data = Object.entries(supporting[keys[0]]);

       Object.entries(data).forEach(([key, value]) => {

         if (value[1]===1){

          var supported = (value[0])

           if (!arr.includes(supported)) {

              arr.push(

               li(

                 a(

                  { href: `/author/${encodeURIComponent(supported)}` }, 

                  supported

                 )

               )

              );

           }

         }

      });

  var supports = arr;


  const blockedList = (supporting)

    var supporting = JSON.parse(fs.readFileSync(supportingPath, "utf8")).value;

    var arr = [];

    var keys = Object.keys(supporting);

      var data = Object.entries(supporting[keys[0]]);

       Object.entries(data).forEach(([key, value]) => {

         if (value[1]===-1){

          var blocked = (value[0])

           if (!arr.includes(blocked)) {

              arr.push(

               li(

                 a(

                  { href: `/author/${encodeURIComponent(blocked)}` }, 

                  blocked

                 )

               )

              );

           }

         }

      });

  var blocks = arr;


  const recommendedList = (supporting)

    var supporting = JSON.parse(fs.readFileSync(supportingPath, "utf8")).value;

    var arr = [];

    var keys = Object.keys(supporting);

      var data = Object.entries(supporting[keys[0]]);

       Object.entries(data).forEach(([key, value]) => {

         if (value[1]===-2){

          var recommended = (value[0])

           if (!arr.includes(recommended)) {

              arr.push(

               li(

                 a(

                  { href: `/author/${encodeURIComponent(recommended)}` }, 

                  recommended

                 )

               )

              );

           }

         }

      });

  var recommends = arr;


 return template(

  i18n.peers,

    section(

      { class: "message" },

      h1(i18n.peerConnections),

      connButtons,

      h1(i18n.online, " (", peerList.length, ")"),

      peerList.length > 0 ? ul(peerList) : i18n.noConnections,

      p(i18n.connectionActionIntro),

      h1(i18n.supported, " (", supports.length, ")"),

      supports.length > 0 ? ul(supports): i18n.noSupportedConnections,

      p(i18n.connectionActionIntro),

      h1(i18n.recommended, " (", recommends.length, ")"),

      recommends.length > 0 ? ul(recommends): i18n.noRecommendedConnections,

      p(i18n.connectionActionIntro),

      h1(i18n.blocked, " (", blocks.length, ")"),

      blocks.length > 0 ? ul(blocks): i18n.noBlockedConnections,

      p(i18n.connectionActionIntro),

      )

    );

};


exports.invitesView = ({ invites }) => {

  const pubsList = (pub)

    var pubs = fs.readFileSync(offsetPath, "utf8");

    var arr = pubs.split(/[{,}]/);

    const arr2 = [];

    const arr3 = [];

    var host = [];

    var id = [];

    for(var i in arr){

        arr.push(arr[i]);

    }

    for(var i=0; i<arr.length; i++){

      if (arr[i] === '"address":') {

      host = arr[i+1].split(':').pop().split(';')[0].split('"')[1];

      id = arr[i+3].split(':').pop().split(';')[0].split('"')[1];

      }


      if (!arr2.includes(host + ":" + id)){

         arr2.push(host + ":" + id)

      }

      var f = arr2.filter(function (el) {

         return el != "" & el != ":";

      });

    }

    for(const v of f){

         var h = v.split(":")[0];

         var i = v.split(":")[1];

         arr3.push(

               li(

                "PUB: " + h, br, 

                 a(

                  { href: `/author/${encodeURIComponent(i)}` }, 

                  i

                 ), br, br

               )

         );

    }

    var pub = arr3;


 return template(

  i18n.invites,

    section(

      { class: "message" },

      h1(i18n.invites),

      p(i18n.invitesDescription),

      form(

        { action: "/settings/invite/accept", method: "post" },

        input({ name: "invite", type: "text", autofocus: true, required: true }),

        button({ type: "submit" }, i18n.acceptInvite),

        h1(i18n.acceptedInvites, " (", pub.length, ")"),

        pub.length > 0 ? ul(pub): i18n.noInvites,

      ),

     )

   );

};


exports.settingsView = ({ theme, themeNames, version }) => { 

 const themeElements = themeNames.map((cur) => {

    const isCurrentTheme = cur === theme;

    if (isCurrentTheme) {

      return option({ value: cur, selected: true }, cur);

    } else {

      return option({ value: cur }, cur);

    }

  });


  const base16 = [

    // '00', removed because this is the background

    "01",

    "02",

    "03",

    "04",

    "05",

    "06",

    "07",

    "08",

    "09",

    "0A",

    "0B",

    "0C",

    "0D",

    "0E",

    "0F",

  ];


  const base16Elements = base16.map((base) =>

    div({

      class: `theme-preview theme-preview-${base}`,

    })

  );


  const languageOption = (longName, shortName) =>

    shortName === selectedLanguage

      ? option({ value: shortName, selected: true }, longName)

      : option({ value: shortName }, longName);


  const rebuildButton = form(

    { action: "/settings/rebuild", method: "post" },

    button({ type: "submit" }, i18n.rebuildName)

  );


  if (ck === "required"){

    updaterequired = form(

      { action: "/update", method: "post" },

      button({ type: "submit"}, i18n.updateit)

    );

  };


  return template(

    i18n.settings,

    section(

      { class: "message" },

      h1(i18n.settings),

      p(a({ href:snhUrl, target: "_blank" }, i18n.settingsIntro({ version }))),

      p(updaterequired),

      h2(i18n.theme),

      p(i18n.themeIntro),

      form(

         { action: "/theme.css", method: "post" },

         select({ name: "theme" }, ...themeElements),

         button({ type: "submit" }, i18n.setTheme)

       ),

      h2(i18n.language),

      p(i18n.languageDescription),

      form(

        { action: "/language", method: "post" },

        select({ name: "language" }, [

          // Languages are sorted alphabetically by their 'long name'.

          /* spell-checker:disable */

          languageOption("English", "en"),

          languageOption("Español", "es"),

          /* spell-checker:enable */

        ]),

        button({ type: "submit" }, i18n.setLanguage)

      ),

      h2(i18n.indexes),

      p(i18n.indexesDescription),

      rebuildButton,

    )

  );

};


/** @param {{ viewTitle: string, viewDescription: string }} input */

const viewInfoBox = ({ viewTitle = null, viewDescription = null }) => {

  if (!viewTitle && !viewDescription) {

    return null;

  }

  return section(

    { class: "viewInfo" },

    viewTitle ? h1(viewTitle) : null,

    viewDescription ? em(viewDescription) : null

  );

};


exports.likesView = async ({ messages, feed, name }) => {

  const authorLink = a(

    { href: `/author/${encodeURIComponent(feed)}` },

    "@" + name

  );


  return template(

    ["@", name, i18n.likedBy],

    viewInfoBox({

      viewTitle: span(authorLink, i18n.likedBy),

      viewDescription: span(i18n.spreadedDescription)

    }),

    messages.map((msg) => post({ msg }))

  );

};


const messageListView = ({

  messages,

  viewTitle = null,

  viewDescription = null,

  viewElements = null,

  // If `aside = true`, it will show a few comments in the thread.

  aside = null,

}) => {

  return template(

    viewTitle,

    section(h1(viewTitle), p(viewDescription), viewElements),

    messages.map((msg) => post({ msg, aside }))

  );

};


exports.popularView = ({ messages, prefix }) => {

  return messageListView({

    messages,

    viewElements: prefix,

    viewTitle: i18n.popular,

    viewDescription: i18n.popularDescription,

  });

};


exports.extendedView = ({ messages }) => {

  return messageListView({

    messages,

    viewTitle: i18n.extended,

    viewDescription: i18n.extendedDescription,

  });

};


exports.latestView = ({ messages }) => {

  return messageListView({

    messages,

    viewTitle: i18n.latest,

    viewDescription: i18n.latestDescription,

  });

};


exports.topicsView = ({ messages, prefix }) => {

  return messageListView({

    messages,

    viewTitle: i18n.topics,

    viewDescription: i18n.topicsDescription,

    viewElements: prefix,

  });

};


exports.summaryView = ({ messages }) => {

  return messageListView({

    messages,

    viewTitle: i18n.summaries,

    viewDescription: i18n.summariesDescription,

    aside: true,

  });

};


exports.spreadedView = ({ messages }) => {

  return spreadedListView({

    messages,

    viewTitle: i18n.spreaded,

    viewDescription: i18n.spreadedDescription,

  });

};


exports.threadsView = ({ messages }) => {

  return messageListView({

    messages,

    viewTitle: i18n.threads,

    viewDescription: i18n.threadsDescription,

    aside: true,

  });

};


exports.previewSubtopicView = async ({

  previewData,

  messages,

  myFeedId,

  contentWarning,

}) => {

  const publishAction = `/subtopic/${encodeURIComponent(messages[0].key)}`;


  const preview = generatePreview({

    previewData,

    contentWarning,

    action: publishAction,

  });

  return exports.subtopicView(

    { messages, myFeedId },

    preview,

    previewData.text,

    contentWarning

  );

};


exports.subtopicView = async (

  { messages, myFeedId },

  preview,

  text,

  contentWarning

) => {

  const subtopicForm = `/subtopic/preview/${encodeURIComponent(
    messages[messages.length - 1].key
  )}`;


  let markdownMention;


  const messageElements = await Promise.all(

    messages.reverse().map((message) => {

      debug("%O", message);

      const authorName = message.value.meta.author.name;

      const authorFeedId = message.value.author;

      if (authorFeedId !== myFeedId) {

        if (message.key === messages[0].key) {

          const x = `[@${authorName}](${authorFeedId})\n\n`;

          markdownMention = x;

        }

      }

      return post({ msg: message });

    })

  );


  const authorName = messages[messages.length - 1].value.meta.author.name;


  return template(

    i18n.subtopicTitle({ authorName }),

    div({ class: "thread-container" }, messageElements),

    preview !== undefined ? preview : "",

    p(i18n.subtopicLabel({ markdownUrl })),

    form(

      { action: subtopicForm, method: "post", enctype: "multipart/form-data" },

      textarea(

        {

          autofocus: true,

          required: true,

          name: "text",

        },

        text ? text : markdownMention

      ),

      label(

        i18n.contentWarningLabel,

        input({

          name: "contentWarning",

          type: "text",

          class: "contentWarning",

          value: contentWarning ? contentWarning : "",

          placeholder: i18n.contentWarningPlaceholder,

        })

      ),

      button({ type: "submit" }, i18n.preview),

      label({ class: "file-button", for: "blob" }, i18n.attachFiles),

      input({ type: "file", id: "blob", name: "blob" })

    )

  );

};


exports.searchView = ({ messages, query }) => {

  const searchInput = input({

    name: "query",

    required: false,

    type: "search",

    value: query,

  });


  // - Minimum length of 3 because otherwise SSB-Search hangs forever. :)

  //   https://github.com/ssbc/ssb-search/issues/8

  // - Using `setAttribute()` because HyperScript (the HyperAxe dependency has

  //   a bug where the `minlength` property is being ignored. No idea why.

  //   https://github.com/hyperhype/hyperscript/issues/91

  searchInput.setAttribute("minlength", 3);


  return template(

    i18n.search,

    section(

      h1(i18n.search),

      form(

        { action: "/search", method: "get" },

        label(i18n.searchLabel, searchInput),

        button(

          {

            type: "submit",

          },

          i18n.submit

        )

      )

    ),

    messages.map((msg) => post({ msg }))

  );

};


const imageResult = ({ id, infos }) => {

  const encodedBlobId = encodeURIComponent(id);

  // only rendering the first message result so far

  // todo: render links to the others as well

  const info = infos[0];

  const encodedMsgId = encodeURIComponent(info.msg);


  return div(

    {

      class: "image-result",

    },

    [

      a(

        {

          href: `/blob/${encodedBlobId}`,

        },

        img({ src: `/image/256/${encodedBlobId}` })

      ),

      a(

        {

          href: `/thread/${encodedMsgId}#${encodedMsgId}`,

          class: "result-text",

        },

        info.name

      ),

    ]

  );

};


exports.imageSearchView = ({ blobs, query }) => {

  const searchInput = input({

    name: "query",

    required: false,

    type: "search",

    value: query,

  });


  // - Minimum length of 3 because otherwise SSB-Search hangs forever. :)

  //   https://github.com/ssbc/ssb-search/issues/8

  // - Using `setAttribute()` because HyperScript (the HyperAxe dependency has

  //   a bug where the `minlength` property is being ignored. No idea why.

  //   https://github.com/hyperhype/hyperscript/issues/91

  searchInput.setAttribute("minlength", 3);


  return template(

    i18n.imageSearch,

    section(

      h1(i18n.imageSearch),

      form(

        { action: "/imageSearch", method: "get" },

        label(i18n.imageSearchLabel, searchInput),

        button(

          {

            type: "submit",

          },

          i18n.submit

        )

      )

    ),

    div(

      {

        class: "image-search-grid",

      },

      Object.keys(blobs)

        // todo: add pagination

        .slice(0, 30)

        .map((blobId) => imageResult({ id: blobId, infos: blobs[blobId] }))

    )

  );

};


exports.hashtagView = ({ messages, hashtag }) => {

  return template(

    `#${hashtag}`,

    section(h1(`#${hashtag}`), p(i18n.hashtagDescription)),

    messages.map((msg) => post({ msg }))

  );

};


/** @param {{percent: number}} input */

exports.indexingView = ({ percent }) => {

  // TODO: i18n

  const message = `Oasis has only processed ${percent}% of the messages and needs to catch up. This page will refresh every 10 seconds. Thanks for your patience! ❤`;


  const nodes = html(

    { lang: "en" },

    head(

      title("Oasis"),

      link({ rel: "icon", type: "image/svg+xml", href: "/assets/favicon.svg" }),

      meta({ charset: "utf-8" }),

      meta({

        name: "description",

        content: i18n.oasisDescription,

      }),

      meta({

        name: "viewport",

        content: toAttributes({ width: "device-width", "initial-scale": 1 }),

      }),

      meta({ "http-equiv": "refresh", content: 10 })

    ),

    body(

      main(

        { id: "content" },

        p(message),

        progress({ value: percent, max: 100 })

      )

    )

  );


  const result = doctypeString + nodes.outerHTML;


  return result;

};