import { ImageIcon, X } from 'lucide-react';
import {
  type CSSProperties,
  type Dispatch,
  type ReactNode,
  type RefObject,
  type SetStateAction,
} from 'react';

import {
  PlatformFloatingMenu,
  PlatformFloatingMenuItem,
} from '../common/PlatformFloatingMenu';
import { PlatformStatusMessage } from '../common/PlatformStatusMessage';
import { PlatformTextField } from '../common/PlatformTextField';
import { EditorIconButton } from './ImageCanvasEditorPrimitives';
import type {
  CharacterReferenceImage,
  GenerateDialogState,
} from './ImageCanvasEditorTypes';
import { ImageCanvasGenerationImageOptionsView } from './ImageCanvasGenerationImageOptionsView';
import { ImageCanvasReferenceSlot } from './ImageCanvasReferenceSlot';
import {
  EDITOR_GENERATION_MUD_POINT_CONFIG,
} from './ImageCanvasGenerationModel';
import { useImageCanvasFloatingOptionDismiss } from './useImageCanvasFloatingOptionDismiss';

type ImageCanvasBasicGenerationComposerViewProps = {
  dialog: GenerateDialogState;
  style: CSSProperties;
  setGenerateDialog: Dispatch<SetStateAction<GenerateDialogState | null>>;
  generationReferenceButtonRef?: RefObject<HTMLButtonElement | null>;
  isGenerationReferenceMenuOpen?: boolean;
  setIsGenerationReferenceMenuOpen?: Dispatch<SetStateAction<boolean>>;
  setIsPickingGenerationReferenceFromCanvas?: Dispatch<SetStateAction<boolean>>;
  renderEditorPortal?: (node: ReactNode) => ReactNode;
  buildPortalMenuStyle?: (
    anchor: HTMLElement | null,
    placement: 'above' | 'below',
  ) => CSSProperties;
  onRequestUpload: (target: 'generation-reference') => void;
  onToggleReferenceMenu?: () => void;
  onRememberImageModel?: (model: string) => void;
  onSubmit: (dialog: GenerateDialogState) => void;
  onClose: () => void;
};
function resetFailedDialogStatus(dialog: GenerateDialogState) {
  return {
    ...dialog,
    status: dialog.status === 'failed' ? 'idle' : dialog.status,
    errorMessage: dialog.status === 'failed' ? undefined : dialog.errorMessage,
  };
}

function ReferenceChip({
  reference,
  index,
  onRemove,
}: {
  reference: CharacterReferenceImage;
  index: number;
  onRemove: () => void;
}) {
  const label = reference.label || `参考图${index + 1}`;
  return (
    <ImageCanvasReferenceSlot
      tone="default"
      icon={<ImageIcon className="h-4 w-4" aria-hidden="true" />}
      imageSrc={reference.src}
      label={label}
      ariaLabel={label}
      title={reference.label}
      onRemove={onRemove}
      removeLabel={`删除${label}`}
    />
  );
}

export function ImageCanvasBasicGenerationComposerView({
  dialog,
  style,
  setGenerateDialog,
  generationReferenceButtonRef,
  isGenerationReferenceMenuOpen = false,
  setIsGenerationReferenceMenuOpen,
  setIsPickingGenerationReferenceFromCanvas,
  renderEditorPortal = (node) => node,
  buildPortalMenuStyle = () => ({}),
  onRequestUpload,
  onToggleReferenceMenu,
  onRememberImageModel = () => {},
  onSubmit,
  onClose,
}: ImageCanvasBasicGenerationComposerViewProps) {
  const references = dialog.generationReferences ?? [];
  useImageCanvasFloatingOptionDismiss({
    isOpen: isGenerationReferenceMenuOpen,
    boundaryRefs: [generationReferenceButtonRef],
    onDismiss: () => setIsGenerationReferenceMenuOpen?.(false),
  });

  return (
    <>
      <form
        className="image-canvas-editor__generation-composer image-canvas-editor__generation-composer--image"
        style={style}
        role="dialog"
        aria-label="生成图片"
        onPointerDown={(event) => event.stopPropagation()}
        onSubmit={(event) => {
          event.preventDefault();
          if (dialog.status !== 'generating') {
            onSubmit(dialog);
          }
        }}
      >
      <div className="image-canvas-editor__reference-strip">
        {references.map((reference, index) => (
          <ReferenceChip
            key={reference.id}
            reference={reference}
            index={index}
            onRemove={() =>
              setGenerateDialog((currentDialog) =>
                currentDialog
                  ? {
                      ...resetFailedDialogStatus(currentDialog),
                      generationReferences: (
                        currentDialog.generationReferences ?? []
                      ).filter((item) => item.id !== reference.id),
                    }
                  : currentDialog,
              )
            }
          />
        ))}
        <ImageCanvasReferenceSlot
          buttonRef={generationReferenceButtonRef}
          tone="default"
          icon={<ImageIcon className="h-4 w-4" aria-hidden="true" />}
          label="参考图"
          ariaLabel="添加参考图"
          disabled={dialog.status === 'generating'}
          isAdd
          onClick={() => onToggleReferenceMenu?.()}
        />
      </div>
      <PlatformTextField
        variant="textarea"
        aria-label="生成提示词"
        value={dialog.prompt}
        disabled={dialog.status === 'generating'}
        placeholder="今天想生成什么画面？"
        size="sm"
        density="compact"
        className="image-canvas-editor__generation-prompt"
        onChange={(event) =>
          setGenerateDialog((currentDialog) =>
            currentDialog
              ? {
                  ...resetFailedDialogStatus(currentDialog),
                  prompt: event.target.value,
                }
              : currentDialog,
          )
        }
      />
      <div className="image-canvas-editor__generation-composer-footer">
        <ImageCanvasGenerationImageOptionsView
          dialog={dialog}
          setGenerateDialog={setGenerateDialog}
          includeDimensions
          onRememberImageModel={onRememberImageModel}
          optionLabelPrefix="生成图片"
          cost={EDITOR_GENERATION_MUD_POINT_CONFIG.image}
          submitLabel="生成"
          submitAriaLabel="生成"
          renderEditorPortal={renderEditorPortal}
          buildPortalMenuStyle={buildPortalMenuStyle}
        />
      </div>
      {dialog.status === 'generating' ? (
        <PlatformStatusMessage
          tone="info"
          surface="platform"
          size="xs"
          className="image-canvas-editor__generate-status"
          role="status"
        >
          生成中
        </PlatformStatusMessage>
      ) : null}
      {dialog.status === 'failed' ? (
        <PlatformStatusMessage
          tone="error"
          surface="platform"
          size="xs"
          className="image-canvas-editor__generate-status"
          role="alert"
        >
          {dialog.errorMessage}
        </PlatformStatusMessage>
      ) : null}
      <EditorIconButton
        className="image-canvas-editor__generation-close"
        label="关闭生成图片"
        icon={X}
        variant="surfaceFloating"
        disabled={dialog.status === 'generating'}
        onClick={onClose}
      />
      </form>
      {isGenerationReferenceMenuOpen && generationReferenceButtonRef
        ? renderEditorPortal(
            <PlatformFloatingMenu
              className="image-canvas-editor__spec-menu image-canvas-editor__portal-menu"
              label="参考图来源"
              placement="top-start"
              style={buildPortalMenuStyle(
                generationReferenceButtonRef.current,
                'above',
              )}
            >
              <PlatformFloatingMenuItem
                onClick={() => {
                  setIsGenerationReferenceMenuOpen?.(false);
                  setIsPickingGenerationReferenceFromCanvas?.(true);
                }}
              >
                从画布中选择
              </PlatformFloatingMenuItem>
              <PlatformFloatingMenuItem
                onClick={() => {
                  setIsGenerationReferenceMenuOpen?.(false);
                  setIsPickingGenerationReferenceFromCanvas?.(false);
                  onRequestUpload('generation-reference');
                }}
              >
                上传图片
              </PlatformFloatingMenuItem>
            </PlatformFloatingMenu>,
          )
        : null}
    </>
  );
}