import { consume } from "@lit/context";
import type { HassEntity } from "home-assistant-js-websocket";
import { css, html, LitElement, nothing } from "lit";
import { customElement, property, state } from "lit/decorators";
import { transform } from "../../../common/decorators/transform";
import "../../../components/ha-date-input";
import "../../../components/ha-time-input";
import { apiContext, internationalizationContext } from "../../../data/context";
import { setDateValue } from "../../../data/date";
import { UNAVAILABLE, UNKNOWN } from "../../../data/entity/entity";
import type { FrontendLocaleData } from "../../../data/translation";
import type {
  HomeAssistantApi,
  HomeAssistantInternationalization,
  ValueChangedEvent,
} from "../../../types";

@customElement("more-info-date")
class MoreInfoDate extends LitElement {
  @property({ attribute: false }) public stateObj?: HassEntity;

  @state()
  @consume({ context: internationalizationContext, subscribe: true })
  @transform<HomeAssistantInternationalization, FrontendLocaleData>({
    transformer: ({ locale }) => locale,
  })
  private _locale!: FrontendLocaleData;

  @state()
  @consume({ context: apiContext, subscribe: true })
  private _api!: HomeAssistantApi;

  protected render() {
    if (!this.stateObj || this.stateObj.state === UNAVAILABLE) {
      return nothing;
    }

    return html`
      <ha-date-input
        .locale=${this._locale}
        .value=${this.stateObj.state === UNKNOWN
          ? undefined
          : this.stateObj.state}
        @value-changed=${this._dateChanged}
      >
      </ha-date-input>
    `;
  }

  private _dateChanged(ev: ValueChangedEvent<string>): void {
    if (ev.detail.value) {
      setDateValue(
        this._api.callService,
        this.stateObj!.entity_id,
        ev.detail.value
      );
    }
  }

  static styles = css`
    :host {
      display: flex;
      align-items: center;
      justify-content: flex-end;
    }
  `;
}

declare global {
  interface HTMLElementTagNameMap {
    "more-info-date": MoreInfoDate;
  }
}
