import memoizeOne from "memoize-one";
import { mdiGestureTap } from "@mdi/js";
import { html, LitElement, nothing } from "lit";
import { customElement, property, state } from "lit/decorators";
import {
  any,
  assert,
  literal,
  object,
  optional,
  string,
  union,
} from "superstruct";
import type { LocalizeFunc } from "../../../../../common/translations/localize";
import { fireEvent } from "../../../../../common/dom/fire_event";
import "../../../../../components/ha-form/ha-form";
import type { SchemaUnion } from "../../../../../components/ha-form/types";
import type { HomeAssistant } from "../../../../../types";
import type { ImageElementConfig } from "../../../elements/types";
import type { LovelacePictureElementEditor } from "../../../types";
import { ACTION_RELATED_CONTEXT } from "../../../components/hui-action-editor";
import { actionConfigStruct } from "../../structs/action-struct";

const imageElementConfigStruct = object({
  type: literal("image"),
  entity: optional(string()),
  image: optional(union([string(), object()])),
  style: optional(any()),
  title: optional(string()),
  tap_action: optional(actionConfigStruct),
  hold_action: optional(actionConfigStruct),
  double_tap_action: optional(actionConfigStruct),
  camera_image: optional(string()),
  camera_view: optional(string()),
  state_image: optional(any()),
  filter: optional(string()),
  state_filter: optional(any()),
  aspect_ratio: optional(string()),
});

@customElement("hui-image-element-editor")
export class HuiImageElementEditor
  extends LitElement
  implements LovelacePictureElementEditor
{
  @property({ attribute: false }) public hass?: HomeAssistant;

  @state() private _config?: ImageElementConfig;

  public setConfig(config: ImageElementConfig): void {
    assert(config, imageElementConfigStruct);
    this._config = config;
  }

  private _schema = memoizeOne(
    (localize: LocalizeFunc) =>
      [
        { name: "entity", selector: { entity: {} } },
        { name: "title", selector: { text: {} } },
        {
          name: "interactions",
          type: "expandable",
          flatten: true,
          iconPath: mdiGestureTap,
          schema: [
            {
              name: "tap_action",
              selector: {
                ui_action: {
                  default_action: "more-info",
                },
              },
              context: ACTION_RELATED_CONTEXT,
            },
            {
              name: "hold_action",
              selector: {
                ui_action: {
                  default_action: "more-info",
                },
              },
              context: ACTION_RELATED_CONTEXT,
            },
            {
              name: "",
              type: "optional_actions",
              flatten: true,
              schema: [
                {
                  name: "double_tap_action",
                  selector: {
                    ui_action: {
                      default_action: "none",
                    },
                  },
                  context: ACTION_RELATED_CONTEXT,
                },
              ],
            },
          ],
        },
        {
          name: "image",
          selector: {
            media: {
              accept: ["image/*"] as string[],
              clearable: true,
              image_upload: true,
              hide_content_type: true,
              content_id_helper: localize(
                "ui.panel.lovelace.editor.card.picture.content_id_helper"
              ),
            },
          },
        },
        { name: "camera_image", selector: { entity: { domain: "camera" } } },
        {
          name: "camera_view",
          selector: {
            select: {
              options: ["auto", "live"].map((value) => ({
                value,
                label: localize(
                  `ui.panel.lovelace.editor.card.generic.camera_view_options.${value}`
                ),
              })),
              mode: "dropdown",
            },
          },
        },
        { name: "state_image", selector: { object: {} } },
        { name: "filter", selector: { text: {} } },
        { name: "state_filter", selector: { object: {} } },
        { name: "aspect_ratio", selector: { text: {} } },
        { name: "style", selector: { object: {} } },
      ] as const
  );

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

    return html`
      <ha-form
        .hass=${this.hass}
        .data=${this._processData(this._config)}
        .schema=${this._schema(this.hass.localize)}
        .computeLabel=${this._computeLabelCallback}
        @value-changed=${this._valueChanged}
      ></ha-form>
    `;
  }

  private _processData = memoizeOne((config: ImageElementConfig) => ({
    ...config,
    ...(typeof config.image === "string"
      ? { image: { media_content_id: config.image } }
      : {}),
  }));

  private _valueChanged(ev: CustomEvent): void {
    fireEvent(this, "config-changed", { config: ev.detail.value });
  }

  private _computeLabelCallback = (
    schema: SchemaUnion<ReturnType<typeof this._schema>>
  ) =>
    this.hass!.localize(
      `ui.panel.lovelace.editor.card.generic.${schema.name}`
    ) ||
    this.hass!.localize(`ui.panel.lovelace.editor.elements.${schema.name}`) ||
    schema.name;
}

declare global {
  interface HTMLElementTagNameMap {
    "hui-image-element-editor": HuiImageElementEditor;
  }
}
