import { ClipboardList, ImagePlus } 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 { ImageCanvasReferenceSlot } from './ImageCanvasReferenceSlot';
import type {
  CharacterReferenceImage,
  GenerateDialogState,
  SpecGenerationType,
  UploadTarget,
} from './ImageCanvasEditorTypes';
import { ImageCanvasGenerationImageOptionsView } from './ImageCanvasGenerationImageOptionsView';
import { calculateEditorImageGenerationPrice } from './ImageCanvasGenerationModel';
import { useImageCanvasFloatingOptionDismiss } from './useImageCanvasFloatingOptionDismiss';

type ImageCanvasCharacterGenerationComposerViewProps = {
  dialog: GenerateDialogState;
  style: CSSProperties;
  characterSpecButtonRef: RefObject<HTMLButtonElement | null>;
  characterReferenceButtonRef: RefObject<HTMLButtonElement | null>;
  isCharacterSpecMenuOpen: boolean;
  isCharacterReferenceMenuOpen: boolean;
  setGenerateDialog: Dispatch<SetStateAction<GenerateDialogState | null>>;
  setIsCharacterSpecMenuOpen: Dispatch<SetStateAction<boolean>>;
  setIsCharacterReferenceMenuOpen: Dispatch<SetStateAction<boolean>>;
  setIsPickingCharacterSpecFromCanvas: Dispatch<SetStateAction<boolean>>;
  setIsPickingCharacterReferenceFromCanvas: Dispatch<SetStateAction<boolean>>;
  renderEditorPortal: (node: ReactNode) => ReactNode;
  buildPortalMenuStyle: (
    anchor: HTMLElement | null,
    placement: 'above' | 'below',
  ) => CSSProperties;
  onOpenSpecDialog: (specType: SpecGenerationType) => void;
  onRequestUpload: (target: UploadTarget) => void;
  onRememberImageModel: (model: string) => void;
  onSubmit: (dialog: GenerateDialogState) => 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${index + 1}`;
  return (
    <ImageCanvasReferenceSlot
      tone="character"
      icon={<ImagePlus className="h-4 w-4" aria-hidden="true" />}
      imageSrc={reference.src}
      objectKey={reference.objectKey}
      label={label}
      ariaLabel={label}
      title={reference.label}
      onRemove={onRemove}
      removeLabel={`删除${label}`}
    />
  );
}

export function ImageCanvasCharacterGenerationComposerView({
  dialog,
  style,
  characterSpecButtonRef,
  characterReferenceButtonRef,
  isCharacterSpecMenuOpen,
  isCharacterReferenceMenuOpen,
  setGenerateDialog,
  setIsCharacterSpecMenuOpen,
  setIsCharacterReferenceMenuOpen,
  setIsPickingCharacterSpecFromCanvas,
  setIsPickingCharacterReferenceFromCanvas,
  renderEditorPortal,
  buildPortalMenuStyle,
  onOpenSpecDialog,
  onRequestUpload,
  onRememberImageModel,
  onSubmit,
}: ImageCanvasCharacterGenerationComposerViewProps) {
  useImageCanvasFloatingOptionDismiss({
    isOpen: isCharacterSpecMenuOpen || isCharacterReferenceMenuOpen,
    boundaryRefs: [characterSpecButtonRef, characterReferenceButtonRef],
    onDismiss: () => {
      setIsCharacterSpecMenuOpen(false);
      setIsCharacterReferenceMenuOpen(false);
    },
  });

  return (
    <form
      className="image-canvas-editor__character-composer"
      style={style}
      role="dialog"
      aria-label="生成角色形象"
      onPointerDown={(event) => event.stopPropagation()}
      onSubmit={(event) => {
        event.preventDefault();
        if (dialog.status !== 'generating') {
          onSubmit(dialog);
        }
      }}
    >
      <div className="image-canvas-editor__reference-strip">
        <ImageCanvasReferenceSlot
          buttonRef={characterSpecButtonRef}
          tone="spec"
          icon={<ClipboardList className="h-4 w-4" aria-hidden="true" />}
          imageSrc={dialog.characterSpecReference?.src}
          objectKey={dialog.characterSpecReference?.objectKey}
          label="角色规范"
          ariaLabel={dialog.characterSpecReference?.label ?? '角色规范'}
          title={dialog.characterSpecReference?.label ?? '角色规范'}
          disabled={dialog.status === 'generating'}
          isAdd={!dialog.characterSpecReference}
          onClick={() => setIsCharacterSpecMenuOpen((open) => !open)}
          onRemove={
            dialog.characterSpecReference
              ? () =>
                  setGenerateDialog((currentDialog) =>
                    currentDialog?.mode === 'character'
                      ? {
                          ...resetFailedDialogStatus(currentDialog),
                          characterSpecReference: null,
                        }
                      : currentDialog,
                  )
              : undefined
          }
          removeLabel="删除角色规范"
        />
        {isCharacterSpecMenuOpen
          ? renderEditorPortal(
              <PlatformFloatingMenu
                className="image-canvas-editor__character-spec-menu image-canvas-editor__portal-menu"
                label="角色规范来源"
                placement="top-start"
                style={buildPortalMenuStyle(
                  characterSpecButtonRef.current,
                  'above',
                )}
              >
                <PlatformFloatingMenuItem
                  className="image-canvas-editor__context-menu-item"
                  onClick={() => {
                    setIsPickingCharacterSpecFromCanvas(true);
                    setIsCharacterSpecMenuOpen(false);
                  }}
                >
                  从画布中选择
                </PlatformFloatingMenuItem>
                <PlatformFloatingMenuItem
                  className="image-canvas-editor__context-menu-item"
                  onClick={() => {
                    setIsCharacterSpecMenuOpen(false);
                    onOpenSpecDialog('character');
                  }}
                >
                  新建角色规范
                </PlatformFloatingMenuItem>
                <PlatformFloatingMenuItem
                  className="image-canvas-editor__context-menu-item"
                  onClick={() => {
                    setIsCharacterSpecMenuOpen(false);
                    onRequestUpload('character-spec');
                  }}
                >
                  上传图片
                </PlatformFloatingMenuItem>
              </PlatformFloatingMenu>,
            )
          : null}
        {(dialog.characterReferences ?? []).map((reference, index) => (
          <ReferenceChip
            key={reference.id}
            reference={reference}
            index={index}
            onRemove={() =>
              setGenerateDialog((currentDialog) =>
                currentDialog?.mode === 'character'
                  ? {
                      ...resetFailedDialogStatus(currentDialog),
                      characterReferences: (
                        currentDialog.characterReferences ?? []
                      ).filter((item) => item.id !== reference.id),
                    }
                  : currentDialog,
              )
            }
          />
        ))}
        <ImageCanvasReferenceSlot
          buttonRef={characterReferenceButtonRef}
          tone="default"
          icon={<ImagePlus className="h-4 w-4" aria-hidden="true" />}
          label="参考图"
          ariaLabel="上传常规参考图"
          disabled={dialog.status === 'generating'}
          isAdd
          onClick={() => setIsCharacterReferenceMenuOpen((open) => !open)}
        />
        {isCharacterReferenceMenuOpen
          ? renderEditorPortal(
              <PlatformFloatingMenu
                className="image-canvas-editor__character-spec-menu image-canvas-editor__portal-menu"
                label="常规参考图来源"
                placement="top-start"
                style={buildPortalMenuStyle(
                  characterReferenceButtonRef.current,
                  'above',
                )}
              >
                <PlatformFloatingMenuItem
                  className="image-canvas-editor__context-menu-item"
                  onClick={() => {
                    setIsPickingCharacterReferenceFromCanvas(true);
                    setIsCharacterReferenceMenuOpen(false);
                  }}
                >
                  从画布中选择
                </PlatformFloatingMenuItem>
                <PlatformFloatingMenuItem
                  className="image-canvas-editor__context-menu-item"
                  onClick={() => {
                    setIsCharacterReferenceMenuOpen(false);
                    onRequestUpload('character-reference');
                  }}
                >
                  上传图片
                </PlatformFloatingMenuItem>
              </PlatformFloatingMenu>,
            )
          : null}
      </div>
      <label className="image-canvas-editor__field-block image-canvas-editor__field-block--single">
        <PlatformTextField
          variant="textarea"
          aria-label="角色设定"
          value={dialog.prompt}
          disabled={dialog.status === 'generating'}
          placeholder="你希望角色如何设计？"
          size="sm"
          density="compact"
          className="image-canvas-editor__generation-prompt image-canvas-editor__generation-prompt--borderless"
          onChange={(event) =>
            setGenerateDialog((currentDialog) =>
              currentDialog?.mode === 'character'
                ? {
                    ...resetFailedDialogStatus(currentDialog),
                    prompt: event.target.value,
                  }
                : currentDialog,
            )
          }
        />
      </label>
      {dialog.status === 'failed' ? (
        <PlatformStatusMessage
          tone="error"
          surface="platform"
          size="xs"
          className="image-canvas-editor__generate-status"
          role="alert"
        >
          {dialog.errorMessage}
        </PlatformStatusMessage>
      ) : null}
      <div className="image-canvas-editor__generation-composer-footer">
        <ImageCanvasGenerationImageOptionsView
          dialog={dialog}
          setGenerateDialog={setGenerateDialog}
          includeDimensions
          onRememberImageModel={onRememberImageModel}
          optionLabelPrefix="生成图片"
          cost={calculateEditorImageGenerationPrice({
            kind: 'character',
            model: dialog.imageModel,
            imageSize: dialog.imageSize,
          })}
          submitLabel="生成"
          submitAriaLabel="生成"
          renderEditorPortal={renderEditorPortal}
          buildPortalMenuStyle={buildPortalMenuStyle}
        />
      </div>
    </form>
  );
}