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"use strict";

const test = require("ava");
const path = require("path");
const request = require("supertest");
const cheerio = require("cheerio");
const mf = require("microformat-node");

process.chdir(path.resolve(__dirname, "./testsite/"));
const config = require(path.resolve(__dirname, "../src/modules/config.js"));

const app = require("../src/app.js");

const parseResponse = res =>
  cheerio.load(res.text, {
    normalizeWhitespace: true,
    useHtmlParser2: true
  });

const toMicroformatsOptions = node => ({
  node,
  textFormat: "normalised"
});

async function notFound(t, url, bodyRegex) {
  const res = await request(app.listen()).get(url);
  const body = res.text;
  t.is(res.statusCode, 404);
  t.regex(body, bodyRegex);
}
notFound.title = (providedTitle, input, expected) =>
  `${input} = 404 ${expected.toString()}`;

test("homepage", async function(t) {
  const res = await request(app.listen()).get("/");

  t.is(res.statusCode, 200);
  t.is(res.type, "text/html");
  t.is(res.charset, "utf-8");
  t.regex(res.text, /^<!DOCTYPE html>/);

  const $ = parseResponse(res);

  t.is($("head > title").text(), "John Doe", "head title is site author");
  t.is($("h1").text(), "John Doe", "h1 is site author");
  t.is($("main").length, 1, "only one <main> tag");
  t.is(
    $(".h-entry:first-of-type time").text(),
    "Sunday, January 1, 2017",
    "first post date"
  );
  t.is(
    $(".h-entry:first-of-type time").attr("datetime"),
    new Date("2017-01-01").toISOString()
  );

  const options = toMicroformatsOptions($);
  const count = await mf.countAsync(options);

  t.deepEqual(count, {
    "h-card": 1,
    "h-feed": 1,
    "h-entry": 1
  });

  const data = await mf.getAsync(options);

  t.snapshot(data, "should contain relevant microformats data");
});

test("post", async function(t) {
  const res = await request(app.listen()).get("/post/testfile");

  t.is(res.statusCode, 200);
  t.is(res.type, "text/html");
  t.is(res.charset, "utf-8");
  t.regex(res.text, /^<!DOCTYPE html>/);

  const $ = parseResponse(res);

  t.is(
    $("head > title").text(),
    "This is a test · " + "John Doe",
    "head title contains post and site author"
  );

  const options = toMicroformatsOptions($);

  const count = await mf.countAsync(options);

  t.deepEqual(count, {
    "h-card": 1,
    "h-entry": 1
  });

  const data = await mf.getAsync(options);

  t.snapshot(data, "should contain relevant microformats data");
});

test("tags", async function(t) {
  const res = await request(app.listen()).get("/tag/a");

  t.is(res.statusCode, 200);
  t.is(res.type, "text/html");
  t.is(res.charset, "utf-8");
  t.regex(res.text, /^<!DOCTYPE html>/);

  const $ = parseResponse(res);

  t.is(
    $("head > title").text(),
    "A · John Doe",
    "head title contains title-cased tag and site name"
  );
  const options = toMicroformatsOptions($);
  const count = await mf.countAsync(options);

  t.deepEqual(count, {
    "h-card": 1,
    "h-feed": 1,
    "h-entry": 1
  });

  const data = await mf.getAsync(options);

  t.snapshot(data, "should contain relevant microformats data");
});

test(notFound, "/post/non-existent", /Post not found/);
test(notFound, "/tag/non-existent", /tag non-existent not found/);