all repos — archive/homestead @ a62fb1e7584ffa53a256ff8ce4d6a451ca542f20

My future indieweb platform

src/responders.js (view raw)

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"use strict";

const fs = require("fs");
const Case = require("case");
const hyperfast = require("hyperfast");
const indent = require("indent-string");

const postDateFormatter = new Intl.DateTimeFormat("en-GB", {
  hour12: false,
  weekday: "long",
  year: "numeric",
  month: "long",
  day: "numeric"
});

const getTemplate = name =>
  fs.readFileSync(`${__dirname}/templates/${name}`, "utf8");

function getTemplateIndent(re, template) {
  return re.exec(getTemplate(template))[1].length;
}
const findMain = /^(\s+)<main/m;
const baseIndentLevel = getTemplateIndent(findMain, "layout.html");
const findPostContent = /^(\s+)<div class="e-content/m;
const postIndentLevel =
  baseIndentLevel + getTemplateIndent(findPostContent, "post.html");

function indentForTemplate(text, indentLevel) {
  return indent(text, indentLevel).slice(indentLevel).replace(/\n+$/, "");
}

function templateReader(template, indentLevel) {
  return indentForTemplate(getTemplate(template), indentLevel);
}

const templates = {
  layout: templateReader("layout.html"),
  home: templateReader("home.html", baseIndentLevel),
  post: templateReader("post.html", baseIndentLevel),
  list: templateReader("list.html", baseIndentLevel)
};

function title(siteTitle, pageTitle) {
  return pageTitle ? `${pageTitle} · ${siteTitle}` : siteTitle;
}

const makeTime = date => ({
  datetime: date.toISOString(),
  _text: postDateFormatter.format(date)
});

const renderPost = ctx => post => {
  return {
    ".dt-published": makeTime(post.data.get("date")),
    ".p-name": post.data.get("title"),
    ".u-url": {
      href: ctx.getURL("post", post.basename)
    },
    ".e-content": {
      _html: post.body
    }
  };
};

function layout(config, pageTitle, pageElement) {
  return hyperfast(templates.layout, {
    title: title(config.author.name, pageTitle),
    ".h-card .p-name": config.author.name,
    ".h-card .p-note": config.site.description,
    ".h-card .u-photo": {
      alt: config.author.name,
      src: config.author.photo
    },
    "header nav li": config.site.nav.map(l => ({
      a: {
        href: l.url,
        _text: l.text
      }
    })),
    "body > main": pageElement.outerHTML,
    ".contact-list li": config.author.contact.map(c => ({
      a: {
        class: c.url.startsWith("mailto") ? "u-email" : "u-url",
        href: c.url,
        _text: c.text
      }
    }))
  }).outerHTML.trim();
}

module.exports = {
  baseIndentLevel,
  postIndentLevel,
  indentForTemplate,

  home(ctx, config, { posts }) {
    ctx.type = "html";

    ctx.body = layout(
      config,
      null,
      hyperfast(templates.home, {
        ".h-entry": posts.map(renderPost(ctx))
      })
    );
  },

  list(ctx, config, { listType, listName, posts }) {
    ctx.type = "html";

    ctx.body = layout(
      config,
      Case.title(listName),
      hyperfast(templates.list, {
        ".h-entry": posts.map(renderPost(ctx))
      })
    );
  },

  post(ctx, config, { post }) {
    ctx.type = "html";

    ctx.body = layout(
      config,
      post.data.get("title"),
      hyperfast(templates.post, renderPost(ctx)(post))
    );
  }
};