import "@polymer/paper-input/paper-input";
import {
  customElement,
  html,
  LitElement,
  property,
  TemplateResult,
} from "lit-element";
import { fireEvent } from "../../../../common/dom/fire_event";
import { ActionConfig } from "../../../../data/lovelace";
import { HomeAssistant } from "../../../../types";
import { PictureCardConfig } from "../../cards/types";
import { struct } from "../../common/structs/struct";
import "../../components/hui-action-editor";
import "../../components/hui-theme-select-editor";
import { LovelaceCardEditor } from "../../types";
import {
  actionConfigStruct,
  EditorTarget,
  EntitiesEditorEvent,
} from "../types";
import { configElementStyle } from "./config-elements-style";

const cardConfigStruct = struct({
  type: "string",
  image: "string?",
  tap_action: struct.optional(actionConfigStruct),
  hold_action: struct.optional(actionConfigStruct),
  theme: "string?",
});

@customElement("hui-picture-card-editor")
export class HuiPictureCardEditor extends LitElement
  implements LovelaceCardEditor {
  @property() public hass?: HomeAssistant;

  @property() private _config?: PictureCardConfig;

  public setConfig(config: PictureCardConfig): void {
    config = cardConfigStruct(config);
    this._config = config;
  }

  get _image(): string {
    return this._config!.image || "";
  }

  get _tap_action(): ActionConfig {
    return this._config!.tap_action || { action: "none" };
  }

  get _hold_action(): ActionConfig {
    return this._config!.hold_action || { action: "none" };
  }

  get _theme(): string {
    return this._config!.theme || "";
  }

  protected render(): TemplateResult {
    if (!this.hass || !this._config) {
      return html``;
    }

    const actions = ["navigate", "url", "call-service", "none"];

    return html`
      ${configElementStyle}
      <div class="card-config">
        <paper-input
          .label="${this.hass.localize(
            "ui.panel.lovelace.editor.card.generic.image"
          )} (${this.hass.localize(
            "ui.panel.lovelace.editor.card.config.required"
          )})"
          .value="${this._image}"
          .configValue="${"image"}"
          @value-changed="${this._valueChanged}"
        ></paper-input>
        <div class="side-by-side">
          <hui-action-editor
            .label="${this.hass.localize(
              "ui.panel.lovelace.editor.card.generic.tap_action"
            )} (${this.hass.localize(
              "ui.panel.lovelace.editor.card.config.optional"
            )})"
            .hass=${this.hass}
            .config="${this._tap_action}"
            .actions="${actions}"
            .configValue="${"tap_action"}"
            @action-changed="${this._valueChanged}"
          ></hui-action-editor>
          <hui-action-editor
            .label="${this.hass.localize(
              "ui.panel.lovelace.editor.card.generic.hold_action"
            )} (${this.hass.localize(
              "ui.panel.lovelace.editor.card.config.optional"
            )})"
            .hass=${this.hass}
            .config="${this._hold_action}"
            .actions="${actions}"
            .configValue="${"hold_action"}"
            @action-changed="${this._valueChanged}"
          ></hui-action-editor>
          <hui-theme-select-editor
            .hass=${this.hass}
            .value="${this._theme}"
            .configValue="${"theme"}"
            @value-changed="${this._valueChanged}"
          ></hui-theme-select-editor>
        </div>
      </div>
    `;
  }

  private _valueChanged(ev: EntitiesEditorEvent): void {
    if (!this._config || !this.hass) {
      return;
    }
    const target = ev.target! as EditorTarget;

    if (
      this[`_${target.configValue}`] === target.value ||
      this[`_${target.configValue}`] === target.config
    ) {
      return;
    }
    if (target.configValue) {
      if (target.value === "") {
        delete this._config[target.configValue!];
      } else {
        this._config = {
          ...this._config,
          [target.configValue!]: target.value ? target.value : target.config,
        };
      }
    }
    fireEvent(this, "config-changed", { config: this._config });
  }
}

declare global {
  interface HTMLElementTagNameMap {
    "hui-picture-card-editor": HuiPictureCardEditor;
  }
}
