import { Check, Download, Pencil, Video, X } from 'lucide-react';
import type {
  Dispatch,
  MouseEvent as ReactMouseEvent,
  ReactNode,
  SetStateAction,
} from 'react';
import { useCallback, useEffect, useRef, useState } from 'react';

import { useResolvedAssetReadUrl } from '../../hooks/useResolvedAssetReadUrl';
import { PlatformTextField } from '../common/PlatformTextField';
import { resolveAssetShowcaseSubmissionState } from './ImageCanvasAssetLibraryModel';
import type { UploadFilesOptions } from './ImageCanvasAssetLibraryPanelView';
import {
  ASSET_DRAG_MIME_TYPE,
  clamp,
  getDraggedAssetId,
  hasDataTransferType,
} from './ImageCanvasEditorModel';
import {
  EditorIconButton,
  SidebarMediaItem,
} from './ImageCanvasEditorPrimitives';
import type {
  AssetPointerDragState,
  EditorAsset,
} from './ImageCanvasEditorTypes';
import {
  getCanvasMediaPreviewClassName,
  getCanvasMediaPreviewMarker,
} from './ImageCanvasMediaModel';
import {
  type AssetSelectionInteraction,
  isSelectableAsset,
} from './useImageCanvasAssetSelection';

const AUDIO_ASSET_COVER_SRC = '/creation-home/audio-asset-cover.png';

export type ImageCanvasAssetRowViewProps = {
  asset: EditorAsset;
  assetPointerDragRef: { current: AssetPointerDragState | null };
  suppressAssetClickRef: { current: boolean };
  isAssetSelectionMode: boolean;
  selectedAssetIds: Set<string>;
  visibleAssetIds: string[];
  renamingAsset: { assetId: string; value: string } | null;
  setRenamingAsset: Dispatch<
    SetStateAction<{ assetId: string; value: string } | null>
  >;
  setUploadDropTarget: Dispatch<SetStateAction<'canvas' | 'assets' | null>>;
  setAssetPointerDrag: Dispatch<SetStateAction<AssetPointerDragState | null>>;
  updateAssetMoveDropFolder: (folderId: string | null) => void;
  addUploadedFiles: (
    files: FileList | File[],
    options?: UploadFilesOptions,
  ) => void;
  moveAssetToFolder: (assetId: string, folderId: string) => void;
  startRenamingAsset: (asset: EditorAsset) => void;
  commitAssetRename: (asset: EditorAsset) => void;
  deleteUploadedAsset: (asset: EditorAsset) => void;
  submitAssetToShowcase: (asset: EditorAsset) => void;
  toggleAssetSelected: (
    assetId: string,
    interaction: AssetSelectionInteraction,
  ) => void;
  addAssetLayer: (asset: EditorAsset) => void;
  onDownloadAsset: (asset: EditorAsset) => void;
};

export function ImageCanvasAssetRowView({
  asset,
  assetPointerDragRef,
  suppressAssetClickRef,
  isAssetSelectionMode,
  selectedAssetIds,
  visibleAssetIds,
  renamingAsset,
  setRenamingAsset,
  setUploadDropTarget,
  setAssetPointerDrag,
  updateAssetMoveDropFolder,
  addUploadedFiles,
  moveAssetToFolder,
  startRenamingAsset,
  commitAssetRename,
  deleteUploadedAsset,
  submitAssetToShowcase,
  toggleAssetSelected,
  addAssetLayer,
  onDownloadAsset,
}: ImageCanvasAssetRowViewProps) {
  const rowRef = useRef<HTMLDivElement | null>(null);
  const [menuPosition, setMenuPosition] = useState<{
    x: number;
    y: number;
  } | null>(null);
  const isRenaming = renamingAsset?.assetId === asset.id;
  const isUploadingAsset = asset.uploadStatus === 'uploading';
  const isFailedUpload = asset.uploadStatus === 'failed';
  const canSelectAsset = isSelectableAsset(asset);
  const showcaseReviewStatus = asset.showcaseReviewStatus ?? null;
  const showcaseSubmissionState = resolveAssetShowcaseSubmissionState(asset);
  const canSubmitShowcaseAsset = showcaseSubmissionState.canSubmit;
  const showcaseMenuLabel = showcaseSubmissionState.label;
  const showcaseMenuReason = showcaseSubmissionState.reason;

  const closeMenu = useCallback(() => {
    setMenuPosition(null);
  }, []);

  useEffect(() => {
    if (isAssetSelectionMode) {
      closeMenu();
    }
  }, [closeMenu, isAssetSelectionMode]);

  const selectAssetFromEvent = useCallback(
    (event: ReactMouseEvent<HTMLElement>) => {
      if (
        !isAssetSelectionMode ||
        !canSelectAsset ||
        suppressAssetClickRef.current
      ) {
        return;
      }
      closeMenu();
      toggleAssetSelected(asset.id, {
        visibleAssetIds,
        shiftKey: event.shiftKey,
      });
    },
    [
      asset.id,
      canSelectAsset,
      closeMenu,
      isAssetSelectionMode,
      suppressAssetClickRef,
      toggleAssetSelected,
      visibleAssetIds,
    ],
  );

  useEffect(() => {
    if (!menuPosition) {
      return undefined;
    }
    const handlePointerDown = (event: PointerEvent) => {
      if (rowRef.current?.contains(event.target as Node)) {
        return;
      }
      closeMenu();
    };
    const handleKeyDown = (event: KeyboardEvent) => {
      if (event.key === 'Escape') {
        closeMenu();
      }
    };
    window.addEventListener('pointerdown', handlePointerDown);
    window.addEventListener('keydown', handleKeyDown);
    window.addEventListener('scroll', closeMenu, true);
    window.addEventListener('resize', closeMenu);
    return () => {
      window.removeEventListener('pointerdown', handlePointerDown);
      window.removeEventListener('keydown', handleKeyDown);
      window.removeEventListener('scroll', closeMenu, true);
      window.removeEventListener('resize', closeMenu);
    };
  }, [closeMenu, menuPosition]);
  const uploadProgress = clamp(asset.uploadProgress ?? 0, 0, 100);
  const mediaPreviewMarker = getCanvasMediaPreviewMarker(asset);
  const mediaPreviewClassName =
    getCanvasMediaPreviewClassName(mediaPreviewMarker);
  const { resolvedUrl: resolvedVideoPreviewUrl } = useResolvedAssetReadUrl(
    asset.mediaType === 'video' ? asset.src : '',
    {
      enabled: asset.mediaType === 'video' && !asset.thumbnailSrc?.trim(),
      objectKey: asset.mediaType === 'video' ? asset.objectKey : undefined,
      refreshKey: asset.id,
    },
  );
  const videoPreview =
    asset.mediaType === 'video' && !asset.thumbnailSrc?.trim() ? (
      <video
        className="image-canvas-editor__asset-video-preview"
        src={resolvedVideoPreviewUrl || undefined}
        muted
        playsInline
        preload="metadata"
        aria-label={`视频素材预览：${asset.label}`}
      />
    ) : undefined;
  const mediaDetail =
    asset.mediaType === 'audio'
      ? '音频'
      : asset.mediaType === 'video'
        ? '视频'
        : `${asset.width} x ${asset.height}`;
  const mediaOverlay =
    asset.mediaType === 'video' ? (
      <div
        className={`image-canvas-editor__asset-media-overlay ${mediaPreviewClassName}`}
      >
        <Video className="h-5 w-5" />
      </div>
    ) : undefined;
  let primaryLabel = `添加${asset.label}`;
  if (isUploadingAsset) {
    primaryLabel = `上传中${asset.label}`;
  } else if (isFailedUpload) {
    primaryLabel = `上传失败${asset.label}`;
  } else if (isAssetSelectionMode) {
    primaryLabel = canSelectAsset
      ? `选择素材${asset.label}`
      : `素材${asset.label}不可选择`;
  }
  const titleNode = isRenaming ? (
    <PlatformTextField
      aria-label={`重命名素材${asset.label}`}
      value={renamingAsset.value}
      autoFocus
      size="xs"
      density="compact"
      className="image-canvas-editor__asset-rename-input"
      onChange={(event) =>
        setRenamingAsset({
          assetId: asset.id,
          value: event.target.value,
        })
      }
      onKeyDown={(event) => {
        if (event.key === 'Enter') {
          event.preventDefault();
          commitAssetRename(asset);
        }
        if (event.key === 'Escape') {
          event.preventDefault();
          setRenamingAsset(null);
        }
      }}
    />
  ) : undefined;
  let actions: ReactNode;
  if (isAssetSelectionMode) {
    actions = undefined;
  } else if (isUploadingAsset) {
    actions = (
      <div className="image-canvas-editor__asset-upload-status">
        <span>{asset.uploadMessage ?? '上传中'}</span>
        <strong>{Math.round(uploadProgress)}%</strong>
      </div>
    );
  } else if (isRenaming) {
    actions = (
      <div className="image-canvas-editor__asset-actions">
        <EditorIconButton
          label={`保存素材${asset.label}名称`}
          title="保存"
          icon={Check}
          onClick={() => commitAssetRename(asset)}
        />
        <EditorIconButton
          label={`取消重命名素材${asset.label}`}
          title="取消"
          icon={X}
          onClick={() => setRenamingAsset(null)}
        />
      </div>
    );
  } else {
    actions = (
      <div className="image-canvas-editor__asset-actions">
        <EditorIconButton
          label={`下载素材${asset.label}`}
          title="下载"
          icon={Download}
          onClick={() => {
            closeMenu();
            onDownloadAsset(asset);
          }}
        />
        <EditorIconButton
          label={`重命名素材${asset.label}`}
          title="重命名"
          icon={Pencil}
          onClick={() => {
            closeMenu();
            startRenamingAsset(asset);
          }}
        />
      </div>
    );
  }

  return (
    <div
      ref={rowRef}
      data-asset-id={asset.id}
      onClick={selectAssetFromEvent}
      onContextMenu={(event) => {
        if (isAssetSelectionMode) {
          event.preventDefault();
          event.stopPropagation();
          return;
        }
        if (isUploadingAsset || isFailedUpload || isRenaming) {
          return;
        }
        event.preventDefault();
        event.stopPropagation();
        setMenuPosition({ x: event.clientX, y: event.clientY });
      }}
    >
      <SidebarMediaItem
        title={asset.label}
        detail={mediaDetail}
        imageAlt={`素材：${asset.label}`}
        primaryLabel={primaryLabel}
        primaryDisabled={isAssetSelectionMode && !canSelectAsset}
        onPrimaryClick={() => {
          if (isUploadingAsset || isFailedUpload) {
            return;
          }
          closeMenu();
          if (suppressAssetClickRef.current) {
            return;
          }
          if (isAssetSelectionMode) {
            return;
          }
          addAssetLayer(asset);
        }}
        selected={isAssetSelectionMode && selectedAssetIds.has(asset.id)}
        rowClassName={[
          'image-canvas-editor__asset-row',
          isUploadingAsset ? 'image-canvas-editor__asset-row--uploading' : '',
          isFailedUpload ? 'image-canvas-editor__asset-row--upload-failed' : '',
        ]
          .filter(Boolean)
          .join(' ')}
        primaryClassName="image-canvas-editor__asset-button"
        thumbnailClassName="image-canvas-editor__asset-thumb"
        metaClassName="image-canvas-editor__asset-meta"
        imageSrc={
          asset.mediaType === 'image'
            ? asset.src
            : asset.mediaType === 'audio'
              ? AUDIO_ASSET_COVER_SRC
              : (asset.thumbnailSrc ?? '')
        }
        objectKey={asset.mediaType === 'image' ? asset.objectKey : undefined}
        previewNode={videoPreview}
        titleNode={
          isUploadingAsset || isFailedUpload ? (
            <span>{asset.label}</span>
          ) : (
            titleNode
          )
        }
        actions={actions}
        draggable={
          !isAssetSelectionMode &&
          !isRenaming &&
          !isUploadingAsset &&
          !isFailedUpload
        }
        previewOverlay={
          isUploadingAsset ? (
            <div className="image-canvas-editor__asset-upload-overlay">
              <span>上传中</span>
            </div>
          ) : (
            mediaOverlay
          )
        }
        footerNode={
          isUploadingAsset || isFailedUpload ? (
            <div className="image-canvas-editor__asset-upload-progress">
              <div>
                <span>
                  {isFailedUpload
                    ? (asset.uploadMessage ?? '上传失败')
                    : (asset.uploadMessage ?? '上传中')}
                </span>
                <strong>{Math.round(uploadProgress)}%</strong>
              </div>
              <progress
                aria-label={`素材${asset.label}上传进度`}
                max={100}
                value={uploadProgress}
              />
            </div>
          ) : undefined
        }
        onDragStart={(event) => {
          if (
            isAssetSelectionMode ||
            isRenaming ||
            isUploadingAsset ||
            isFailedUpload
          ) {
            event.preventDefault();
            return;
          }
          if (assetPointerDragRef.current?.assetId === asset.id) {
            event.preventDefault();
            return;
          }
          event.dataTransfer.effectAllowed = 'move';
          event.dataTransfer.setData(ASSET_DRAG_MIME_TYPE, asset.id);
          event.dataTransfer.setData('text/plain', asset.label);
          event.dataTransfer.setData('text/uri-list', asset.src);
          updateAssetMoveDropFolder(asset.folderId);
        }}
        onDragEnd={() => {
          setUploadDropTarget(null);
          updateAssetMoveDropFolder(null);
        }}
        onPointerDown={(event) => {
          if (isAssetSelectionMode) {
            return;
          }
          if (event.button !== 0) {
            return;
          }
          const target = event.target as HTMLElement;
          if (
            isRenaming ||
            isUploadingAsset ||
            isFailedUpload ||
            target.closest('input, textarea, select')
          ) {
            return;
          }
          const primaryAssetButton = target.closest(
            '.image-canvas-editor__asset-button',
          );
          if (target.closest('button') && !primaryAssetButton) {
            return;
          }
          const nextDrag: AssetPointerDragState = {
            pointerId: event.pointerId,
            assetId: asset.id,
            startClientX: event.clientX,
            startClientY: event.clientY,
            currentClientX: event.clientX,
            currentClientY: event.clientY,
            active: false,
            dropFolderId: null,
          };
          if (!primaryAssetButton) {
            try {
              event.currentTarget.setPointerCapture?.(event.pointerId);
            } catch {
              // 自动化环境可能没有 active pointer，拖拽状态仍可走 window 事件完成。
            }
            event.preventDefault();
          }
          event.stopPropagation();
          assetPointerDragRef.current = nextDrag;
          setAssetPointerDrag(nextDrag);
        }}
        onDragOver={(event) => {
          if (isAssetSelectionMode) {
            if (
              hasDataTransferType(event.dataTransfer, ASSET_DRAG_MIME_TYPE) ||
              hasDataTransferType(event.dataTransfer, 'Files')
            ) {
              event.preventDefault();
              event.stopPropagation();
              event.dataTransfer.dropEffect = 'none';
            }
            return;
          }
          if (hasDataTransferType(event.dataTransfer, ASSET_DRAG_MIME_TYPE)) {
            event.preventDefault();
            event.stopPropagation();
            setUploadDropTarget(null);
            updateAssetMoveDropFolder(asset.folderId);
            event.dataTransfer.dropEffect = 'move';
            return;
          }
          if (hasDataTransferType(event.dataTransfer, 'Files')) {
            event.preventDefault();
            event.stopPropagation();
            setUploadDropTarget('assets');
            event.dataTransfer.dropEffect = 'copy';
          }
        }}
        onDrop={(event) => {
          if (isAssetSelectionMode) {
            if (
              getDraggedAssetId(event.dataTransfer) ||
              event.dataTransfer.files.length > 0
            ) {
              event.preventDefault();
              event.stopPropagation();
              setUploadDropTarget(null);
              updateAssetMoveDropFolder(null);
            }
            return;
          }
          const movingAssetId = getDraggedAssetId(event.dataTransfer);
          if (movingAssetId) {
            event.preventDefault();
            event.stopPropagation();
            setUploadDropTarget(null);
            updateAssetMoveDropFolder(null);
            moveAssetToFolder(movingAssetId, asset.folderId);
            return;
          }
          if (!event.dataTransfer.files.length) {
            return;
          }
          event.preventDefault();
          event.stopPropagation();
          setUploadDropTarget(null);
          updateAssetMoveDropFolder(null);
          addUploadedFiles(event.dataTransfer.files, {
            folderId: asset.folderId,
          });
        }}
      />
      {menuPosition ? (
        <div
          className="image-canvas-editor__context-menu image-canvas-editor__asset-context-menu"
          role="menu"
          style={{
            left: menuPosition.x,
            top: menuPosition.y,
          }}
        >
          <button
            type="button"
            role="menuitem"
            className="image-canvas-editor__asset-context-menu-toggle"
            disabled={!canSubmitShowcaseAsset}
            title={showcaseMenuReason ?? showcaseMenuLabel}
            onClick={() => {
              if (!canSubmitShowcaseAsset) {
                return;
              }
              submitAssetToShowcase(asset);
            }}
          >
            <span className="image-canvas-editor__asset-context-menu-label">
              <span>{showcaseMenuLabel}</span>
              {showcaseMenuReason ? (
                <span className="image-canvas-editor__asset-context-menu-reason">
                  {showcaseMenuReason}
                </span>
              ) : null}
            </span>
            {showcaseReviewStatus === 'approved' ? (
              <span
                aria-hidden="true"
                className="image-canvas-editor__asset-context-menu-check"
              >
                ✓
              </span>
            ) : null}
          </button>
          {asset.sourceKind === 'uploaded' ? (
            <button
              type="button"
              role="menuitem"
              className="image-canvas-editor__context-menu-danger"
              onClick={() => {
                deleteUploadedAsset(asset);
                closeMenu();
              }}
            >
              删除
            </button>
          ) : null}
        </div>
      ) : null}
    </div>
  );
}