import {
  DefaultTheme,
  isTransparent,
  type Palette,
  type ShapeName,
  ShapeStyle,
  ShapeType,
} from '@blocksuite/affine-model';
import {
  EditPropsStore,
  FeatureFlagService,
  ThemeProvider,
} from '@blocksuite/affine-shared/services';
import type { ColorEvent } from '@blocksuite/affine-shared/utils';
import { SignalWatcher, WithDisposable } from '@blocksuite/global/lit';
import { StyleGeneralIcon, StyleScribbleIcon } from '@blocksuite/icons/lit';
import type { BlockComponent } from '@blocksuite/std';
import {
  GfxControllerIdentifier,
  type ToolOptionWithType,
} from '@blocksuite/std/gfx';
import { computed, effect, type Signal, signal } from '@preact/signals-core';
import { css, html, LitElement } from 'lit';
import { property } from 'lit/decorators.js';
import { when } from 'lit/directives/when.js';

import { ShapeTool } from '../shape-tool';
import { ShapeComponentConfig } from '../toolbar';

export class EdgelessShapeMenu extends SignalWatcher(
  WithDisposable(LitElement)
) {
  static override styles = css`
    :host {
      display: flex;
      z-index: -1;
    }
    .menu-content {
      display: flex;
      align-items: center;
    }
    .shape-type-container,
    .shape-style-container {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 14px;
    }
    .shape-type-container svg,
    .shape-style-container svg {
      fill: var(--affine-icon-color);
      stroke: none;
    }
    menu-divider {
      height: 24px;
      margin: 0 9px;
    }
  `;

  private readonly _shapeName$: Signal<ShapeName> = signal(ShapeType.Rect);

  @property({ attribute: false })
  accessor edgeless!: BlockComponent;

  private readonly _props$ = computed(() => {
    const shapeName: ShapeName = this._shapeName$.value;
    const { shapeStyle, fillColor, strokeColor, radius } =
      this.edgeless.std.get(EditPropsStore).lastProps$.value[
        `shape:${shapeName}`
      ];
    return {
      shapeStyle,
      shapeName,
      fillColor,
      strokeColor,
      radius,
    };
  });

  private readonly _setFillColor = ({ key, value }: Palette) => {
    const filled = !isTransparent(value);
    const fillColor = value;
    const strokeColor = filled
      ? DefaultTheme.StrokeColorShortPalettes.find(
          palette => palette.key === key
        )?.value
      : DefaultTheme.StrokeColorShortMap.Grey;

    const { shapeName } = this._props$.value;
    this.edgeless.std
      .get(EditPropsStore)
      .recordLastProps(`shape:${shapeName}`, {
        filled,
        fillColor,
        strokeColor,
      });
    this.onChange(shapeName);
  };

  private readonly _setShapeStyle = (shapeStyle: ShapeStyle) => {
    const { shapeName } = this._props$.value;
    this.edgeless.std
      .get(EditPropsStore)
      .recordLastProps(`shape:${shapeName}`, {
        shapeStyle,
      });
    this.onChange(shapeName);
  };

  private readonly _theme$ = computed(() => {
    return this.edgeless.std.get(ThemeProvider).theme$.value;
  });

  override connectedCallback(): void {
    super.connectedCallback();

    const gfx = this.edgeless.std.get(GfxControllerIdentifier);
    this._disposables.add(
      effect(() => {
        const value = gfx.tool.currentToolOption$.value;

        if (value && value.toolType === ShapeTool) {
          const shapeName = (value as ToolOptionWithType<ShapeTool>).options
            ?.shapeName;
          if (shapeName) {
            this._shapeName$.value = shapeName;
          }
        }
      })
    );
  }

  override render() {
    const { fillColor, shapeStyle, shapeName } = this._props$.value;

    return html`
      <edgeless-slide-menu>
        <div class="menu-content">
          ${
            // TODO(@fundon): add a flag
            when(
              false,
              () => html`
                <div class="shape-style-container">
                  <edgeless-tool-icon-button
                    .tooltip=${'General'}
                    .active=${shapeStyle === ShapeStyle.General}
                    .activeMode=${'background'}
                    .iconSize=${'20px'}
                    @click=${() => {
                      this._setShapeStyle(ShapeStyle.General);
                    }}
                  >
                    ${StyleGeneralIcon()}
                  </edgeless-tool-icon-button>
                  <edgeless-tool-icon-button
                    .tooltip=${'Scribbled'}
                    .active=${shapeStyle === ShapeStyle.Scribbled}
                    .activeMode=${'background'}
                    .iconSize=${'20px'}
                    @click=${() => {
                      this._setShapeStyle(ShapeStyle.Scribbled);
                    }}
                  >
                    ${StyleScribbleIcon()}
                  </edgeless-tool-icon-button>
                </div>
                <menu-divider .vertical=${true}></menu-divider>
              `
            )
          }
          <div class="shape-type-container">
            ${ShapeComponentConfig.map(
              ({ name, generalIcon, scribbledIcon, tooltip }) => {
                return html`
                  <edgeless-tool-icon-button
                    .tooltip=${tooltip}
                    .active=${shapeName === name}
                    .activeMode=${'background'}
                    .iconSize=${'20px'}
                    @click=${() => this.onChange(name)}
                  >
                    ${
                      shapeStyle === ShapeStyle.General
                        ? generalIcon
                        : scribbledIcon
                    }
                  </edgeless-tool-icon-button>
                `;
              }
            )}
          </div>
          <menu-divider .vertical=${true}></menu-divider>
          <edgeless-color-panel
            class="one-way"
            .value=${fillColor}
            .theme=${this._theme$.value}
            .palettes=${DefaultTheme.FillColorShortPalettes}
            .hasTransparent=${!this.edgeless.store
              .get(FeatureFlagService)
              .getFlag('enable_color_picker')}
            @select=${(e: ColorEvent) => this._setFillColor(e.detail)}
          ></edgeless-color-panel>
        </div>
      </edgeless-slide-menu>
    `;
  }

  @property({ attribute: false })
  accessor onChange!: (name: ShapeName) => void;
}