import { r, q, h } from "./brief-html.js";

const populateRedirects = async (redirKey) => {
  const body = q("main table tbody");
  body.innerHTML = "Loading...";

  const redirects = await fetch("/redirects.json", {
    headers: { authorization: `Bearer ${redirKey}` },
  }).then((r) => r.json());

  body.innerHTML = "";

  for (const redirect of redirects) {
    body.appendChild(
      h("tr", {}, [
        h(
          "td",
          {},
          h("a", { href: "/" + redirect.path }, [h("pre", {}, [redirect.path])])
        ),
        h(
          "td",
          {},
          h("a", { href: redirect.target_location }, [redirect.target_location])
        ),
        h("td", {}, [redirect.redirect_code]),
      ])
    );
  }
};

const setupForm = (redirKey) => {
  const form = h("form", {}, [
    h("h2", {}, "create or replace"),

    h("label", { for: "path" }, ["local path (random if empty)"]),
    h(
      "input",
      {
        type: "text",
        name: "path",
        id: "path",
        placeholder: "my-cool-link",
      },
      []
    ),

    h("label", { for: "url" }, ["target url"]),
    h(
      "input",
      {
        type: "url",
        name: "url",
        id: "url",
        placeholder: "https://…",
        required: true,
      },
      []
    ),

    h("button", {}, ["Create"]),
  ]);

  form.addEventListener("submit", async (e) => {
    e.preventDefault();

    const data = new URLSearchParams();
    const path = form.querySelector("#path").value;
    if (path) data.append("path", path);
    data.append("target", form.querySelector("#url").value);

    const response = await fetch("/shorten", {
      method: "POST",
      headers: {
        "content-type": "application/x-www-form-urlencoded",
        authorization: `Bearer ${redirKey}`,
      },
      body: data,
    }).then((r) => r.json());

    if (response.error) alert(response.error);

    window.location.reload();
  });

  q("main").appendChild(form);
};

r(async () => {
  const redirKey = window.localStorage.getItem("redirect-key");
  if (redirKey == null) return;

  await Promise.all([populateRedirects(redirKey), setupForm(redirKey)]);
});