---
import BaseLayout from './BaseLayout.astro';

import { decode } from 'html-entities';

import type { PlaylistSnapshot } from '../models/playlist-snapshot';

const { playlistId } = Astro.params;

let playlist: PlaylistSnapshot | null = null;
let playlistFetchError = '';
let displayTitle = '';
let description = '';

try {
  const githubResponse = await fetch(
    `https://raw.githubusercontent.com/mackorone/spotify-playlist-archive/main/playlists/pretty/${playlistId}.json`
  );

  if (!githubResponse.ok) {
    const errorMessage = githubResponse.status === 404
      ? "This playlist doesn't exist"
      : "Failed to fetch playlist's data";

    throw new Error(errorMessage);
  }

  playlist = (await githubResponse.json()) as PlaylistSnapshot;
  description = decode(playlist.description, { level: 'html5' });

  displayTitle = playlist.unique_name !== playlist.original_name
    ? `${playlist.unique_name} (${playlist.original_name})`
    : playlist.original_name;
} catch (error) {
  console.error(error);

  const expectedErrorMessages = [
    "Failed to fetch playlist's data",
    "This playlist doesn't exist"
  ];

  displayTitle = 'Error';
  playlistFetchError = (error as Error).message;

  description = expectedErrorMessages.includes(playlistFetchError)
    ? playlistFetchError
    : expectedErrorMessages[0];
}
---

<BaseLayout title={displayTitle} description={description}>
  <div class="mt-24 text-center flex flex-col gap-5 items-center">
  {
    playlist ? (
      <h1 class="font-bold text-4xl">
        <a href={playlist.url} target="_blank" rel="noopener noreferrer">
          {displayTitle}
        </a>
        by
        <a
          href={playlist.owner.url}
          target="_blank"
          rel="noopener noreferrer"
        >
          {playlist.owner.name}
        </a>
      </h1>
      <p class="text-lg">{description}</p>
      <div class="tabs">
        <a class="tab text-base">
          <i class="fa-solid fa-calendar mr-3" />
          Browse snapshots
        </a>
        <a class="tab text-base">
          <i class="fa-solid fa-plus-minus mr-3" />
          Compare snapshots
        </a>
        <a class="tab text-base">
          <i class="fa-solid fa-chart-line mr-3" />
          Show statistics
        </a>
      </div>
      <slot />
    ) : (
      <div class="alert alert-error max-w-md justify-center shadow-lg">
        {description}
      </div>
    )
  }
  </div>
</BaseLayout>