import {
  mdiDotsVertical,
  mdiPlayBoxMultiple,
  mdiSpeakerMultiple,
} from "@mdi/js";
import type { PropertyValues } from "lit";
import { css, html, LitElement, nothing } from "lit";
import { customElement, property, query, state } from "lit/decorators";
import { classMap } from "lit/directives/class-map";
import { styleMap } from "lit/directives/style-map";
import { applyThemesOnElement } from "../../../common/dom/apply_themes_on_element";
import { fireEvent } from "../../../common/dom/fire_event";
import { stateActive } from "../../../common/entity/state_active";
import { supportsFeature } from "../../../common/entity/supports-feature";
import { extractColors } from "../../../common/image/extract_color";
import { debounce } from "../../../common/util/debounce";
import "../../../components/ha-card";
import "../../../components/ha-icon-button";
import "../../../components/ha-slider";
import type { HaSlider } from "../../../components/ha-slider";
import "../../../components/ha-state-icon";
import { showJoinMediaPlayersDialog } from "../../../components/media-player/show-join-media-players-dialog";
import { showMediaBrowserDialog } from "../../../components/media-player/show-media-browser-dialog";
import { UNAVAILABLE, UNKNOWN } from "../../../data/entity/entity";
import type {
  MediaPickedEvent,
  MediaPlayerEntity,
} from "../../../data/media-player";
import {
  cleanupMediaTitle,
  computeMediaControls,
  computeMediaDescription,
  getCurrentProgress,
  handleMediaControlClick,
  MediaPlayerEntityFeature,
  mediaPlayerPlayMedia,
} from "../../../data/media-player";
import type { HomeAssistant } from "../../../types";
import { findEntities } from "../common/find-entities";
import { hasConfigOrEntityChanged } from "../common/has-changed";
import "../components/hui-marquee";
import { createEntityNotFoundWarning } from "../components/hui-warning";
import type { LovelaceCard, LovelaceCardEditor } from "../types";
import type { MediaControlCardConfig } from "./types";

@customElement("hui-media-control-card")
export class HuiMediaControlCard extends LitElement implements LovelaceCard {
  public static async getConfigElement(): Promise<LovelaceCardEditor> {
    await import("../editor/config-elements/hui-media-control-card-editor");
    return document.createElement("hui-media-control-card-editor");
  }

  public static getStubConfig(
    hass: HomeAssistant,
    entities: string[],
    entitiesFallback: string[]
  ): MediaControlCardConfig {
    const includeDomains = ["media_player"];
    const maxEntities = 1;
    const foundEntities = findEntities(
      hass,
      maxEntities,
      entities,
      entitiesFallback,
      includeDomains
    );

    return { type: "media-control", entity: foundEntities[0] || "" };
  }

  @property({ attribute: false }) public hass!: HomeAssistant;

  @state() private _config?: MediaControlCardConfig;

  @state() private _foregroundColor?: string;

  @state() private _backgroundColor?: string;

  @state() private _narrow = false;

  @state() private _veryNarrow = false;

  @state() private _cardHeight = 0;

  @query("ha-slider") private _progressBar?: HaSlider;

  @state() private _marqueeActive = false;

  private _progressInterval?: number;

  private _resizeObserver?: ResizeObserver;

  public getCardSize(): number {
    return 3;
  }

  public setConfig(config: MediaControlCardConfig): void {
    if (!config.entity || config.entity.split(".")[0] !== "media_player") {
      throw new Error("Specify an entity from within the media_player domain");
    }

    this._config = config;

    this.updateComplete.then(() => this._measureCard());
  }

  public connectedCallback(): void {
    super.connectedCallback();
    this.updateComplete.then(() => this._attachObserver());

    if (!this.hass || !this._config) {
      return;
    }

    const stateObj = this._stateObj;

    if (!stateObj) {
      return;
    }

    if (
      !this._progressInterval &&
      this._showProgressBar &&
      stateObj.state === "playing"
    ) {
      this._progressInterval = window.setInterval(
        () => this._updateProgressBar(),
        1000
      );
    }
  }

  public disconnectedCallback(): void {
    super.disconnectedCallback();
    if (this._progressInterval) {
      clearInterval(this._progressInterval);
      this._progressInterval = undefined;
    }
    if (this._resizeObserver) {
      this._resizeObserver.disconnect();
    }
  }

  protected render() {
    if (!this.hass || !this._config) {
      return nothing;
    }
    const stateObj = this._stateObj;

    if (!stateObj) {
      return html`
        <hui-warning .hass=${this.hass}>
          ${createEntityNotFoundWarning(this.hass, this._config.entity)}
        </hui-warning>
      `;
    }

    const imageStyle = {
      "background-image": this._image
        ? `url(${this.hass.hassUrl(this._image)})`
        : "none",
      width: `${this._cardHeight}px`,
      "background-color": this._backgroundColor || "",
    };

    const gradientStyle = {
      "background-image": `linear-gradient(to right, ${
        this._backgroundColor
      }, ${this._backgroundColor + "00"})`,
      width: `${this._cardHeight}px`,
    };

    const entityState = stateObj.state;

    const isOffState =
      !stateActive(stateObj) &&
      entityState !== UNAVAILABLE &&
      entityState !== UNKNOWN;
    const isUnavailable =
      entityState === UNAVAILABLE ||
      entityState === UNKNOWN ||
      (isOffState &&
        !supportsFeature(stateObj, MediaPlayerEntityFeature.TURN_ON));
    const hasNoImage = !this._image;
    const controls = computeMediaControls(stateObj, false);
    const showControls =
      controls &&
      (!this._veryNarrow ||
        isOffState ||
        entityState === "idle" ||
        entityState === "on");

    const mediaDescription = computeMediaDescription(stateObj);
    const mediaTitleClean = cleanupMediaTitle(stateObj.attributes.media_title);

    const groupMembers = stateObj.attributes.group_members?.length;

    return html`
      <ha-card>
        <div
          class="background ${classMap({
            "no-image": hasNoImage,
            off: isOffState || isUnavailable,
            unavailable: isUnavailable,
          })}"
        >
          <div
            class="color-block"
            style=${styleMap({
              "background-color": this._backgroundColor || "",
            })}
          ></div>
          <div
            class="no-img"
            style=${styleMap({
              "background-color": this._backgroundColor || "",
            })}
          ></div>
          <div class="image" style=${styleMap(imageStyle)}></div>
          ${
            hasNoImage
              ? ""
              : html`
                  <div
                    class="color-gradient"
                    style=${styleMap(gradientStyle)}
                  ></div>
                `
          }
        </div>
        <div
          class="player ${classMap({
            "no-image": hasNoImage,
            narrow: this._narrow && !this._veryNarrow,
            off: isOffState || isUnavailable,
            "no-progress": this._veryNarrow || !this._showProgressBar,
            "no-controls": !showControls,
          })}"
          style=${styleMap({ color: this._foregroundColor || "" })}
        >
          <div class="top-info">
            <div class="icon-name">
              <ha-state-icon class="icon" .stateObj=${stateObj}></ha-state-icon>
              <div>
                ${this.hass.formatEntityName(
                  this.hass!.states[this._config!.entity],
                  this._config.name
                )}
              </div>
            </div>
            <div>
              <ha-icon-button
                .path=${mdiDotsVertical}
                .label=${this.hass.localize(
                  "ui.panel.lovelace.cards.show_more_info"
                )}
                class="more-info"
                @click=${this._handleMoreInfo}
              ></ha-icon-button>
            </div>
          </div>
          ${
            !isUnavailable &&
            (mediaDescription || mediaTitleClean || showControls)
              ? html`
                  <div>
                    <div class="title-controls">
                      ${
                        !mediaDescription && !mediaTitleClean
                          ? ""
                          : html`
                              <div class="media-info">
                                <hui-marquee
                                  .text=${mediaTitleClean || mediaDescription}
                                  .active=${this._marqueeActive}
                                  @mouseover=${this._marqueeMouseOver}
                                  @mouseleave=${this._marqueeMouseLeave}
                                ></hui-marquee>
                                ${!mediaTitleClean ? "" : mediaDescription}
                              </div>
                            `
                      }
                      ${
                        !showControls
                          ? ""
                          : html`
                              <div class="controls">
                                <div class="start">
                                  ${controls!.map(
                                    (control) => html`
                                      <ha-icon-button
                                        .label=${this.hass.localize(
                                          `ui.card.media_player.${control.action}`
                                        )}
                                        .path=${control.icon}
                                        action=${control.action}
                                        @click=${this._handleClick}
                                      >
                                      </ha-icon-button>
                                    `
                                  )}
                                </div>
                                <div class="end">
                                  ${
                                    supportsFeature(
                                      stateObj,
                                      MediaPlayerEntityFeature.BROWSE_MEDIA
                                    )
                                      ? html`
                                          <ha-icon-button
                                            class="browse-media"
                                            .label=${this.hass.localize(
                                              "ui.card.media_player.browse_media"
                                            )}
                                            .path=${mdiPlayBoxMultiple}
                                            @click=${this._handleBrowseMedia}
                                          ></ha-icon-button>
                                        `
                                      : ""
                                  }
                                  ${
                                    supportsFeature(
                                      stateObj,
                                      MediaPlayerEntityFeature.GROUPING
                                    )
                                      ? html`
                                          <ha-icon-button
                                            class="join-media"
                                            .label=${this.hass.localize(
                                              "ui.card.media_player.join"
                                            )}
                                            @click=${this._handleJoinMediaPlayers}
                                          >
                                            <ha-svg-icon
                                              .path=${mdiSpeakerMultiple}
                                            ></ha-svg-icon>
                                            ${
                                              groupMembers && groupMembers > 1
                                                ? html`<span class="badge">
                                                    ${
                                                      stateObj.attributes
                                                        .group_members?.length
                                                    }
                                                  </span>`
                                                : nothing
                                            }
                                          </ha-icon-button>
                                        `
                                      : ""
                                  }
                                </div>
                              </div>
                            `
                      }
                    </div>
                    ${
                      !this._showProgressBar
                        ? ""
                        : html`
                            <ha-slider
                              style=${styleMap({
                                "--ha-slider-indicator-color":
                                  this._foregroundColor ||
                                  "var(--accent-color)",
                                cursor: supportsFeature(
                                  stateObj,
                                  MediaPlayerEntityFeature.SEEK
                                )
                                  ? "pointer"
                                  : "initial",
                              })}
                              @click=${this._handleSeek}
                            >
                            </ha-slider>
                          `
                    }
                  </div>
                `
              : ""
          }
        </div>
      </ha-card>
    `;
  }

  protected shouldUpdate(changedProps: PropertyValues<this>): boolean {
    return (
      hasConfigOrEntityChanged(this, changedProps) ||
      changedProps.size > 1 ||
      !changedProps.has("hass")
    );
  }

  protected firstUpdated(): void {
    this._attachObserver();
    this._measureCard();
  }

  public willUpdate(changedProps: PropertyValues): void {
    super.willUpdate(changedProps);

    if (
      !this._config ||
      !this.hass ||
      (!changedProps.has("_config") && !changedProps.has("hass"))
    ) {
      return;
    }

    const stateObj = this._stateObj;

    if (!stateObj) {
      if (this._progressInterval) {
        clearInterval(this._progressInterval);
        this._progressInterval = undefined;
      }
      this._foregroundColor = undefined;
      this._backgroundColor = undefined;
      return;
    }

    const oldHass = changedProps.get("hass") as HomeAssistant | undefined;

    const oldImage =
      oldHass?.states[this._config.entity]?.attributes.entity_picture_local ||
      oldHass?.states[this._config.entity]?.attributes.entity_picture;

    if (!this._image) {
      this._foregroundColor = undefined;
      this._backgroundColor = undefined;
      return;
    }

    if (this._image !== oldImage) {
      this._setColors();
    }
  }

  protected updated(changedProps: PropertyValues) {
    if (
      !this._config ||
      !this.hass ||
      !this._stateObj ||
      (!changedProps.has("_config") && !changedProps.has("hass"))
    ) {
      return;
    }

    const stateObj = this._stateObj;

    const oldHass = changedProps.get("hass") as HomeAssistant | undefined;
    const oldConfig = changedProps.get("_config") as
      MediaControlCardConfig | undefined;

    if (
      !oldHass ||
      !oldConfig ||
      oldHass.themes !== this.hass.themes ||
      oldConfig.theme !== this._config.theme
    ) {
      applyThemesOnElement(this, this.hass.themes, this._config.theme);
    }

    this._updateProgressBar();

    if (
      !this._progressInterval &&
      this._showProgressBar &&
      stateObj.state === "playing"
    ) {
      this._progressInterval = window.setInterval(
        () => this._updateProgressBar(),
        1000
      );
    } else if (
      this._progressInterval &&
      (!this._showProgressBar || stateObj.state !== "playing")
    ) {
      clearInterval(this._progressInterval);
      this._progressInterval = undefined;
    }
  }

  private get _image() {
    if (!this.hass || !this._config) {
      return undefined;
    }

    const stateObj = this._stateObj;

    if (!stateObj) {
      return undefined;
    }

    return (
      stateObj.attributes.entity_picture_local ||
      stateObj.attributes.entity_picture
    );
  }

  private get _showProgressBar() {
    if (!this.hass || !this._config || this._narrow) {
      return false;
    }

    const stateObj = this._stateObj;

    if (!stateObj) {
      return false;
    }

    return (
      (stateObj.state === "playing" || stateObj.state === "paused") &&
      "media_duration" in stateObj.attributes &&
      "media_position" in stateObj.attributes
    );
  }

  private _measureCard() {
    const card = this.shadowRoot!.querySelector("ha-card");

    if (!card) {
      return;
    }
    this._narrow = card.offsetWidth < 350;
    this._veryNarrow = card.offsetWidth < 300;
    this._cardHeight = card.offsetHeight;
  }

  private async _attachObserver(): Promise<void> {
    if (!this._resizeObserver) {
      this._resizeObserver = new ResizeObserver(
        debounce(() => this._measureCard(), 250, false)
      );
    }
    const card = this.shadowRoot!.querySelector("ha-card");
    // If we show an error or warning there is no ha-card
    if (!card) {
      return;
    }
    this._resizeObserver.observe(card);
  }

  private _handleMoreInfo(): void {
    fireEvent(this, "hass-more-info", {
      entityId: this._config!.entity,
    });
  }

  private _handleBrowseMedia(): void {
    showMediaBrowserDialog(this, {
      action: "play",
      entityId: this._config!.entity,
      mediaPickedCallback: (pickedMedia: MediaPickedEvent) =>
        mediaPlayerPlayMedia(
          this.hass,
          this._config!.entity,
          pickedMedia.item.media_content_id,
          pickedMedia.item.media_content_type
        ),
    });
  }

  private _handleJoinMediaPlayers(): void {
    showJoinMediaPlayersDialog(this, {
      entityId: this._config!.entity,
    });
  }

  private _handleClick(e: MouseEvent): void {
    handleMediaControlClick(
      this.hass!,
      this._stateObj!,
      (e.currentTarget as HTMLElement).getAttribute("action")!
    );
  }

  private _updateProgressBar(): void {
    if (this._progressBar && this._stateObj?.attributes.media_duration) {
      this._progressBar.value =
        (getCurrentProgress(this._stateObj) /
          this._stateObj!.attributes.media_duration) *
        100;
    }
  }

  private get _stateObj(): MediaPlayerEntity | undefined {
    return this.hass!.states[this._config!.entity] as MediaPlayerEntity;
  }

  private _handleSeek(): void {
    const stateObj = this._stateObj!;

    if (!supportsFeature(stateObj, MediaPlayerEntityFeature.SEEK)) {
      return;
    }

    const percentValue = this._progressBar?.value ?? 0;
    const percent = percentValue ? percentValue / 100 : 0;

    const position = this._stateObj!.attributes.media_duration! * percent;

    this.hass!.callService("media_player", "media_seek", {
      entity_id: this._config!.entity,
      seek_position: position,
    });
  }

  private async _setColors(): Promise<void> {
    if (!this._image) {
      return;
    }

    try {
      const { foreground, background } = await extractColors(
        this.hass.hassUrl(this._image)
      );
      this._backgroundColor = background.hex;
      this._foregroundColor = foreground.hex;
    } catch (err: any) {
      // eslint-disable-next-line no-console
      console.error("Error getting Image Colors", err);
      this._foregroundColor = undefined;
      this._backgroundColor = undefined;
    }
  }

  private _marqueeMouseOver(): void {
    if (!this._marqueeActive) {
      this._marqueeActive = true;
    }
  }

  private _marqueeMouseLeave(): void {
    if (this._marqueeActive) {
      this._marqueeActive = false;
    }
  }

  static styles = css`
    ha-card {
      overflow: hidden;
      height: 100%;
    }

    .background {
      display: flex;
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
      transition: filter 0.8s;
    }

    .color-block {
      background-color: var(--primary-color);
      transition: background-color 0.8s;
      width: 100%;
    }

    .color-gradient {
      position: absolute;
      background-image: linear-gradient(
        to right,
        var(--primary-color),
        transparent
      );
      height: 100%;
      right: 0;

      opacity: 1;
      transition:
        width 0.8s,
        opacity 0.8s linear 0.8s;
    }

    .image {
      background-color: var(--primary-color);
      background-position: center;
      background-size: cover;
      background-repeat: no-repeat;
      position: absolute;
      right: 0;
      height: 100%;
      opacity: 1;
      transition:
        width 0.8s,
        background-image 0.8s,
        background-color 0.8s,
        background-size 0.8s,
        opacity 0.8s linear 0.8s;
    }

    .no-image .image {
      opacity: 0;
    }

    .no-img {
      background-color: var(--primary-color);
      background-size: initial;
      background-repeat: no-repeat;
      background-position: center center;
      padding-bottom: 0;
      position: absolute;
      right: 0;
      height: 100%;
      background-image: url("/static/images/card_media_player_bg.png");
      width: 50%;
      transition:
        opacity 0.8s,
        background-color 0.8s;
    }

    .off .image,
    .off .color-gradient {
      opacity: 0;
      transition:
        opacity 0s,
        width 0.8s;
      width: 0;
    }

    .unavailable .no-img,
    .background:not(.off):not(.no-image) .no-img {
      opacity: 0;
    }

    .player {
      position: relative;
      padding: 16px;
      height: 100%;
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      color: var(--text-primary-color);
      transition-property: color, padding;
      transition-duration: 0.4s;
    }

    .controls {
      padding: 8px 8px 8px 0;
      display: flex;
      justify-content: flex-start;
      align-items: center;
      transition: padding, color;
      transition-duration: 0.4s;
      margin-left: -12px;
      margin-inline-start: -12px;
      margin-inline-end: initial;
      padding-inline-start: 0;
      padding-inline-end: 8px;
      direction: ltr;
    }

    .controls > div {
      display: flex;
      align-items: center;
    }

    .controls > .start {
      flex-grow: 1;
    }

    .controls ha-icon-button {
      --ha-icon-button-size: 44px;
      --mdc-icon-size: 30px;
    }

    ha-icon-button[action="media_play"],
    ha-icon-button[action="media_play_pause"],
    ha-icon-button[action="media_pause"],
    ha-icon-button[action="media_stop"] {
      --ha-icon-button-size: 56px;
      --mdc-icon-size: 40px;
    }

    ha-icon-button.browse-media {
      --mdc-icon-size: 24px;
      inset-inline-end: 4px;
      inset-inline-start: initial;
    }

    ha-icon-button.join-media {
      --mdc-icon-size: 24px;
      inset-inline-end: 4px;
      inset-inline-start: initial;
    }

    .top-info {
      display: flex;
      justify-content: space-between;
    }

    .icon-name {
      display: flex;
      height: fit-content;
      align-items: center;
    }

    .icon-name ha-state-icon {
      padding-right: 8px;
      padding-inline-start: initial;
      padding-inline-end: 8px;
      direction: var(--direction);
    }

    .more-info {
      position: absolute;
      top: 4px;
      right: 4px;
      inset-inline-start: initial;
      inset-inline-end: 4px;
      direction: var(--direction);
    }

    .media-info {
      text-overflow: ellipsis;
      white-space: nowrap;
      overflow: hidden;
    }

    hui-marquee {
      font-size: 1.2em;
      margin: 0px 0 4px;
    }

    .title-controls {
      padding-top: 16px;
    }

    ha-slider {
      --track-size: 8px;
      width: 100%;
      --ha-slider-track-color: rgba(200, 200, 200, 0.5);
    }

    ha-slider::part(thumb) {
      display: none;
    }

    .no-image .controls {
      padding: 0;
    }

    .off.background {
      filter: grayscale(1);
    }

    .narrow .controls,
    .no-progress .controls {
      padding-bottom: 0;
    }

    .narrow ha-icon-button {
      --ha-icon-button-size: 40px;
      --mdc-icon-size: 28px;
    }

    .narrow ha-icon-button[action="media_play"],
    .narrow ha-icon-button[action="media_play_pause"],
    .narrow
      ha-icon-button[action="media_pause"]
      .narrow
      ha-icon-button[action="media_stop"] {
      --ha-icon-button-size: 50px;
      --mdc-icon-size: 36px;
    }

    .narrow ha-icon-button.browse-media {
      --mdc-icon-size: 24px;
    }

    .no-progress.player:not(.no-controls) {
      padding-bottom: 0px;
    }

    .badge {
      position: absolute;
      top: 0;
      right: 0;
      width: auto;
      height: auto;
      display: flex;
      justify-content: center;
      align-items: center;
      min-width: 8px;
      min-height: 16px;
      border-radius: 10px;
      font-weight: var(--ha-font-weight-normal);
      font-size: var(--ha-font-size-xs);
      background-color: var(--accent-color);
      padding: 0 4px;
      color: var(--text-accent-color, var(--text-primary-color));
    }
  `;
}

declare global {
  interface HTMLElementTagNameMap {
    "hui-media-control-card": HuiMediaControlCard;
  }
}
