defmodule MusicLibraryWeb.StatsComponents do
  use MusicLibraryWeb, :live_component

  import MusicLibraryWeb.RecordComponents,
    only: [format_label: 1, type_label: 1, artist_links: 1, record_cover: 1]

  alias MusicLibrary.Records

  attr :record, Records.Record, required: true
  attr :title, :string, required: true
  attr :class, :string

  def album_preview(assigns) do
    ~H"""
    <div
      class={[
        "flex items-center rounded-md bg-white dark:bg-zinc-800 px-4 pb-5 pt-5 shadow-sm sm:px-6 sm:pt-6 cursor-pointer",
        @class
      ]}
      phx-click={JS.navigate(~p"/collection/#{@record}")}
    >
      <div>
        <.record_cover
          record={@record}
          class="w-16 md:w-20 rounded-md shadow-sm"
          width={160}
        />
      </div>
      <div class="ml-4">
        <p class="truncate text-xs sm:text-sm font-medium text-zinc-500 dark:text-zinc-400">
          {@title}
        </p>
        <p class="font-semibold">
          <span class="text-sm md:text-base lg:text-2xl block text-zinc-900 dark:text-zinc-300">
            {@record.title}
          </span>
          <.link
            :for={artist <- @record.artists}
            class="text-sm md:text-base text-zinc-600 dark:text-zinc-200 hover:text-zinc-500 dark:text-zinc-300 dark:hover:text-zinc-200"
            navigate={~p"/artists/#{artist.musicbrainz_id}"}
          >
            {artist.name}
          </.link>
        </p>
      </div>
    </div>
    """
  end

  attr :title, :string, required: true
  attr :count, :integer, required: true
  attr :path, :string, required: false, default: nil
  attr :tooltip, :any, required: false, default: nil

  def counter(assigns) do
    ~H"""
    <div class="overflow-hidden rounded-md bg-white dark:bg-zinc-800 shadow-sm flex justify-center items-center">
      <div class="p-4 md:p-0">
        <dt>
          <p class="truncate text-sm font-medium text-center text-zinc-500 dark:text-zinc-400">
            {@title}
          </p>
        </dt>
        <dd :if={!@tooltip} class="mt-1">
          <.link
            :if={@path}
            navigate={@path}
            class="block text-2xl sm:text-3xl font-semibold text-center text-zinc-900 hover:text-zinc-500 dark:text-zinc-300 dark:hover:text-zinc-200"
          >
            {@count}
          </.link>
          <p
            :if={!@path}
            class="block cursor-default text-2xl sm:text-3xl font-semibold text-center text-zinc-900 dark:text-zinc-300"
          >
            {@count}
          </p>
        </dd>
        <dd :if={@tooltip} class="mt-1">
          <.tooltip>
            <:content>
              <span id={"#{@title}-counter-tooltip"} phx-hook="FormatNumber">{@tooltip}</span>
            </:content>
            <.link
              :if={@path}
              navigate={@path}
              class="block text-2xl sm:text-3xl font-semibold text-center text-zinc-900 hover:text-zinc-500 dark:text-zinc-300 dark:hover:text-zinc-200"
            >
              {@count}
            </.link>
            <p
              :if={!@path}
              class="block cursor-default text-2xl sm:text-3xl font-semibold text-center text-zinc-900 dark:text-zinc-300"
            >
              {@count}
            </p>
          </.tooltip>
        </dd>
      </div>
    </div>
    """
  end

  attr :categories_with_counts, :list, required: true
  attr :category_format_fn, :any, required: true
  attr :category_path_fn, :any, required: true

  def counters_by_category(assigns) do
    ~H"""
    <%!-- TODO: replace with OSS version --%>
    <dl class={[
      "mt-5 grid divide-zinc-200 dark:divide-zinc-900 overflow-hidden rounded-md bg-white dark:bg-zinc-800 shadow-sm divide-x-1",
      stats_class(@categories_with_counts)
    ]}>
      <div :for={{category, count} <- @categories_with_counts} class="px-2 py-5 sm:px-4">
        <dt class="text-sm font-medium text-zinc-500 dark:text-zinc-400 text-center max-sm:text-xs break-keep">
          {@category_format_fn.(category)}
        </dt>
        <dd class="mt-1 text-center">
          <.link
            class="text-xl lg:text-2xl font-semibold hover:text-zinc-500 dark:text-zinc-300 dark:hover:text-zinc-200"
            navigate={@category_path_fn.(category)}
          >
            {count}
          </.link>
        </dd>
      </div>
    </dl>
    """
  end

  attr :record_show_path, :any, required: true
  attr :records, :list, required: true
  attr :current_date, Date, required: true

  def records_on_this_day(assigns) do
    ~H"""
    <ul
      class="mt-5 p-4"
      role="list"
      id="records"
      phx-update="stream"
    >
      <li
        id="no-records-on-this-day"
        class="hidden py-8 only:flex items-center justify-center text-sm text-zinc-500 dark:text-zinc-400"
      >
        {gettext("No records released on this day.")}
      </li>
      <li
        :for={{id, record} <- @records}
        phx-click={JS.navigate(@record_show_path.(record))}
        class="flex justify-between gap-x-6 py-2 hover:bg-zinc-50 dark:hover:bg-zinc-800 px-2 -mx-2 md:px-4 md:-mx-4 cursor-pointer"
        id={id}
      >
        <div class="flex min-w-0 gap-x-4 items-center">
          <div class="relative w-12 flex-none">
            <.record_cover record={record} width={96} />
            <span
              :if={Records.Record.included_release_groups_count(record) > 0}
              class={[
                "absolute right-0 bottom-0 rounded-br-lg rounded-tl-lg px-1",
                "text-xs font-medium",
                "bg-zinc-200/80 dark:bg-zinc-500/70",
                "text-zinc-700 dark:text-zinc-200",
                "border-1 border-zinc-600/20 dark:border-zinc-500/20"
              ]}
            >
              {Records.Record.included_release_groups_count(record)}
            </span>
          </div>
          <div class="min-w-0 flex-auto">
            <h1 class="text-sm leading-6 text-zinc-700">
              <.artist_links joinphrase_class="text-xs" artists={record.artists} />
            </h1>
            <h2 class="mt-1 flex font-semibold text-sm sm:text-base leading-5 text-zinc-700 dark:text-zinc-300 text-wrap">
              {record.title}
            </h2>
            <p class="mt-1 text-xs leading-5 text-zinc-500 dark:text-zinc-400">
              <.released_how_long_ago record={record} current_date={@current_date} />
              · {format_label(record.format)} · {type_label(record.type)}
              <span :if={record.purchased_at}>
                ·
                <span class="sr-only">
                  {gettext("Purchased on")}
                </span>
                <.icon
                  name="hero-banknotes"
                  class="h-4 w-4"
                  aria-hidden="true"
                  data-slot="icon"
                />
                {Records.Record.format_as_date(record.purchased_at)}
              </span>
            </p>
          </div>
        </div>
      </li>
    </ul>
    """
  end

  attr :record, Records.Record, required: true
  attr :current_date, Date, required: true

  defp released_how_long_ago(assigns) do
    assigns =
      assign(
        assigns,
        :years,
        Records.Record.released_how_long_ago?(assigns.record, assigns.current_date)
      )

    ~H"""
    <span class={[
      "text-xs leading-5",
      normal_year?(@years) && "text-zinc-500 dark:text-zinc-400",
      gold_year?(@years) &&
        "font-semibold bg-gradient-to-r bg-clip-text text-transparent from-yellow-500 via-yellow-200 to-yellow-700 animate-shine",
      silver_year?(@years) &&
        "font-semibold bg-gradient-to-r bg-clip-text text-transparent from-gray-500 via-gray-200 to-gray-700 animate-shine"
    ]}>
      {ngettext(
        "1 year ago",
        "%{count} years ago",
        @years
      )}
    </span>
    """
  end

  defp gold_year?(year), do: rem(year, 10) == 0
  defp silver_year?(year), do: rem(year, 5) == 0
  defp normal_year?(year), do: !gold_year?(year) && !silver_year?(year)

  # The Tailwind build step requires all needed classes to be explicitly referenced
  # in the source code, and not dynamically generated. This implies that one cannot
  # (for example) interpolate a number in a class name.
  defp stats_class(collection) do
    case Enum.count(collection) do
      1 -> "grid-cols-1"
      2 -> "grid-cols-2"
      3 -> "grid-cols-3"
      4 -> "grid-cols-4"
      5 -> "grid-cols-5"
      6 -> "grid-cols-6"
      7 -> "grid-cols-7"
      8 -> "grid-cols-8"
      9 -> "grid-cols-9"
      _other -> ""
    end
  end
end