🖇️ Create Links

<script>
    export let icon = 'default';
    export let url = 'foo';
    export let title = 'some cool title';
</script>


<a href={url} class="stack w-full max-w-md text-center bg-base-300 flex justify-center items-center p-4 rounded-lg not-prose no-underline">
  <img src={`/${icon}.png`} alt={icon} width="32" height="32" class="w-8" />
  <span class="text-lg text-white font-bold">{title}</span>
</a>

<script lang="ts">
    import { page } from "$app/stores";
    import UserLink from "$lib/components/UserLink.svelte";
    import { db, userData, user } from "$lib/firebase";
    import {
      arrayRemove,
      arrayUnion,
      doc,
      setDoc,
      updateDoc,
    } from "firebase/firestore";
    import { writable } from "svelte/store";
  
    const icons = [
      "Twitter",
      "YouTube",
      "TikTok",
      "LinkedIn",
      "GitHub",
      "Custom",
    ];

    const formDefaults = {
      icon: "custom",
      title: "",
      url: "https://",
    };

    const formData = writable(formDefaults);
  
    let showForm = false;
  
    $: urlIsValid = $formData.url.match(/^(ftp|http|https):\/\/[^ "]+$/);
    $: titleIsValid = $formData.title.length < 20 && $formData.title.length > 0;
    $: formIsValid = urlIsValid && titleIsValid;

  
    async function addLink(e: SubmitEvent) {
      const userRef = doc(db, "users", $user!.uid);
  
      await updateDoc(userRef, {
        links: arrayUnion({
          ...$formData,
          id: Date.now().toString(),
        }),
      });
  
      formData.set({
        icon: "",
        title: "",
        url: "",
      });
  
      showForm = false;
    }

  
    async function deleteLink(item: any) {
      const userRef = doc(db, "users", $user!.uid);
      await updateDoc(userRef, {
        links: arrayRemove(item),
      });
    }
  
    function cancelLink() {
      formData.set(formDefaults);
      showForm = false;
    }
  
</script>
  
  <main class="max-w-xl mx-auto">
    {#if $userData?.username == $page.params.username}
      <h1 class="mx-2 text-2xl font-bold mt-8 mb-4 text-center">
        Edit your Profile
      </h1>

      <!-- INSERT sortable list here -->

      {#if showForm}
        <form
          on:submit|preventDefault={addLink}
          class="bg-base-200 p-6 w-full mx-auto rounded-xl"
        >
          <select
            name="icon"
            class="select select-sm"
            bind:value={$formData.icon}
          >

            {#each icons as icon}
              <option value={icon.toLowerCase()}>{icon}</option>
            {/each}
          </select>
          <input
            name="title"
            type="text"
            placeholder="Title"
            class="input input-sm"
            bind:value={$formData.title}
          />
          <input
            name="url"
            type="text"
            placeholder="URL"
            class="input input-sm"
            bind:value={$formData.url}
          />
          <div class="my-4">
            {#if !titleIsValid}
              <p class="text-error text-xs">Must have valid title</p>
            {/if}
            {#if !urlIsValid}
              <p class="text-error text-xs">Must have a valid URL</p>
            {/if}
            {#if formIsValid}
              <p class="text-success text-xs">Looks good!</p>
            {/if}
          </div>
  
          <button
            disabled={!formIsValid}
            type="submit"
            class="btn btn-success block">Add Link</button
          >
  
          <button type="button" class="btn btn-xs my-4" on:click={cancelLink}>Cancel</button>
        </form>
      {:else}
        <button
          on:click={() => (showForm = true)}
          class="btn btn-outline btn-info block mx-auto my-4"
        >
          Add a Link
        </button>
      {/if}
    {/if}
  </main>
  

let showForm = $state(false);

let urlIsValid = $derived($formData.url.match(/^(ftp|http|https):\/\/[^ "]+$/));
let titleIsValid = $derived($formData.title.length < 20 && $formData.title.length > 0);
let formIsValid = $derived(urlIsValid && titleIsValid);