import type { CSSResultGroup } from "lit";
import { css, html, LitElement, nothing } from "lit";
import { customElement, property, state } from "lit/decorators";
import { fireEvent } from "../../../../common/dom/fire_event";
import "../../../../components/ha-button";
import "../../../../components/ha-dialog";
import "../../../../components/ha-dialog-footer";
import "../../../../components/radio/ha-radio-group";
import type { HaRadioGroup } from "../../../../components/radio/ha-radio-group";
import "../../../../components/radio/ha-radio-option";
import {
  clearStatistics,
  getStatisticLabel,
  updateStatisticsMetadata,
} from "../../../../data/recorder";
import { haStyle, haStyleDialog } from "../../../../resources/styles";
import type { HomeAssistant } from "../../../../types";
import type { DialogStatisticsUnitsChangedParams } from "./show-dialog-statistics-fix-units-changed";

@customElement("dialog-statistics-fix-units-changed")
export class DialogStatisticsFixUnitsChanged extends LitElement {
  @property({ attribute: false }) public hass!: HomeAssistant;

  @state() private _params?: DialogStatisticsUnitsChangedParams;

  @state() private _open = false;

  @state() private _action?: "update" | "clear" | "change";

  public showDialog(params: DialogStatisticsUnitsChangedParams): void {
    this._params = params;
    this._action = "update";
    this._open = true;
  }

  public closeDialog(): void {
    this._open = false;
  }

  private _dialogClosed(): void {
    this._params = undefined;
    this._action = undefined;
    this._open = false;
    fireEvent(this, "dialog-closed", { dialog: this.localName });
  }

  protected render() {
    if (!this._params) {
      return nothing;
    }

    return html`
      <ha-dialog
        .open=${this._open}
        header-title=${this.hass.localize(
          "ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.title"
        )}
        @closed=${this._dialogClosed}
      >
        <p>
          ${this.hass.localize(
            "ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.info_text_1",
            {
              name: getStatisticLabel(
                this.hass,
                this._params.issue.data.statistic_id,
                undefined
              ),
              statistic_id: this._params.issue.data.statistic_id,
              current_unit: this._params.issue.data.state_unit,
              previous_unit: this._params.issue.data.metadata_unit,
            }
          )}<br />
          ${this.hass.localize(
            "ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.info_text_2"
          )}<br />
          ${this.hass.localize(
            "ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.info_text_3"
          )}
        </p>

        <ha-radio-group
          .label=${this.hass.localize(
            "ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.how_to_fix"
          )}
          .value=${this._action}
          name="action"
          @change=${this._handleActionChanged}
        >
          <ha-radio-option value="update" autofocus>
            ${this.hass.localize(
              "ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.update",
              this._params.issue.data
            )}
          </ha-radio-option>
          <ha-radio-option value="clear">
            ${this.hass.localize(
              `ui.panel.config.tools.tabs.statistics.fix_issue.units_changed.clear`
            )}
          </ha-radio-option>
        </ha-radio-group>

        <ha-dialog-footer slot="footer">
          <ha-button
            appearance="plain"
            slot="secondaryAction"
            @click=${this._cancel}
          >
            ${this.hass.localize("ui.common.close")}
          </ha-button>
          <ha-button slot="primaryAction" @click=${this._fixIssue}>
            ${this.hass.localize(
              "ui.panel.config.tools.tabs.statistics.fix_issue.fix"
            )}
          </ha-button>
        </ha-dialog-footer>
      </ha-dialog>
    `;
  }

  private _handleActionChanged(ev: Event): void {
    this._action = (ev.currentTarget as HaRadioGroup).value as
      "update" | "clear";
  }

  private _cancel(): void {
    this._params?.cancelCallback!();
    this.closeDialog();
  }

  private async _fixIssue(): Promise<void> {
    if (this._action === "clear") {
      await clearStatistics(this.hass, [this._params!.issue.data.statistic_id]);
    } else if (this._action === "update") {
      await updateStatisticsMetadata(
        this.hass,
        this._params!.issue.data.statistic_id,
        this._params!.issue.data.state_unit,
        this._params!.issue.data.state_unit_class
      );
    }
    this._params?.fixedCallback!();
    this.closeDialog();
  }

  static get styles(): CSSResultGroup {
    return [
      haStyle,
      haStyleDialog,
      css`
        ha-radio-group::part(form-control-label) {
          font-weight: var(--ha-font-weight-medium);
        }
      `,
    ];
  }
}

declare global {
  interface HTMLElementTagNameMap {
    "dialog-statistics-fix-units-changed": DialogStatisticsFixUnitsChanged;
  }
}
