import React, { useState } from 'react';
import { Button } from '../../components/Button/Button';
import {
  DropdownMenu,
  DropdownMenuTrigger,
  DropdownMenuContent,
  DropdownMenuItem,
} from '../../components/DropdownMenu';
import { Icons } from '../../components/Icons/Icons';
import { Tooltip, TooltipTrigger, TooltipContent } from '../../components/Tooltip/Tooltip';
import { cn } from '../../lib/utils';
import { useTranslation } from 'react-i18next';

/**
 * DataRow is a complex UI component that displays a selectable, interactive row with hierarchical data.
 * It's designed to show a numbered item with a title, optional color indicator, and expandable details.
 * The row supports various interactive features like visibility toggling, locking, and contextual actions.
 *
 * @component
 * @example
 * ```tsx
 * // Basic usage without status
 * <DataRow
 *   number={1}
 *   title="My Item"
 *   details={{
 *     primary: ["Main detail", "  Sub detail"],
 *     secondary: []
 *   }}
 *   isVisible={true}
 *   isLocked={false}
 *   onToggleVisibility={() => {}}
 *   onToggleLocked={() => {}}
 *   onRename={() => {}}
 *   onDelete={() => {}}
 *   onColor={() => {}}
 * />
 *
 * // With warning status using composite pattern
 * <DataRow
 *   // ... other props
 * >
 *   <DataRow.Status.Warning tooltip="This structured report is not compatible with this application" />
 * </DataRow>
 *
 * // With success status using composite pattern
 * <DataRow
 *   // ... other props
 * >
 *   <DataRow.Status.Success tooltip="Measurement completed successfully" />
 * </DataRow>
 *
 * // Multiple status indicators
 * <DataRow
 *   // ... other props
 * >
 *   <DataRow.Status.Warning tooltip="Warning message" />
 *   <DataRow.Status.Info tooltip="Additional info" />
 * </DataRow>
 *
 * ```
 */

/**
 * Props for the DataRow component
 * @interface DataRowProps
 * @property {number} number - The display number/index of the row
 * @property {string} title - The main text label for the row
 * @property {boolean} disableEditing - When true, prevents rename and delete operations
 * @property {string} [colorHex] - Optional hex color code to display a color indicator
 * @property {Object} [details] - Optional hierarchical details to display below the row
 * @property {string[]} details.primary - Primary details shown immediately below the row
 * @property {string[]} details.secondary - Secondary details (currently unused)
 * @property {boolean} [isSelected] - Whether the row is currently selected
 * @property {() => void} [onSelect] - Callback when the row is clicked/selected
 * @property {boolean} isVisible - Controls the row's visibility state
 * @property {() => void} onToggleVisibility - Callback to toggle visibility
 * @property {boolean} isLocked - Controls the row's locked state
 * @property {() => void} onToggleLocked - Callback to toggle locked state
 * @property {() => void} onRename - Callback when rename is requested
 * @property {() => void} onDelete - Callback when delete is requested
 * @property {() => void} onColor - Callback when color change is requested
 * @property {React.ReactNode} children - Optional children, including Status components
 */
interface DataRowProps {
  number: number | null;
  disableEditing: boolean;
  description: string;
  details?: { primary: string[]; secondary: string[] };
  //
  /** Primary selection: selected and in the active segmentation */
  isSelected?: boolean;
  /** Secondary selection: selected but in an inactive segmentation */
  isSecondarySelected?: boolean;
  onSelect?: (e) => void;
  //
  isVisible: boolean;
  onToggleVisibility: (e) => void;
  //
  isLocked: boolean;
  onToggleLocked: (e) => void;
  //
  title: string;
  onRename: (e) => void;
  //
  onDelete: (e) => void;
  //
  colorHex?: string;
  onColor: (e) => void;
  onCopy?: (e) => void;
  className?: string;
  children?: React.ReactNode;
}

const DataRowComponent = React.forwardRef<HTMLDivElement, DataRowProps>(
  (
    {
      number,
      title,
      colorHex,
      details,
      onSelect,
      isLocked,
      onToggleVisibility,
      onToggleLocked,
      onRename,
      onDelete,
      onColor,
      onCopy,
      isSelected = false,
      isSecondarySelected = false,
      isVisible = true,
      disableEditing = false,
      className,
      children,
    },
    ref
  ) => {
    const { t } = useTranslation('DataRow');
    const [isDropdownOpen, setIsDropdownOpen] = useState(false);
    const isTitleLong = title?.length > 25;

    // Extract Status components from children
    const statusComponents = React.Children.toArray(children).filter(
      child =>
        React.isValidElement(child) &&
        child.type &&
        (child.type as React.ComponentType).displayName?.startsWith('DataRow.Status')
    );

    const handleAction = (action: string, e: React.MouseEvent) => {
      e.stopPropagation();
      switch (action) {
        case 'Rename':
          onRename(e);
          break;
        case 'Copy':
          onCopy?.(e);
          break;
        case 'Lock':
          onToggleLocked(e);
          break;
        case 'Delete':
          onDelete(e);
          break;
        case 'Color':
          onColor(e);
          break;
      }
    };

    const decodeHTML = (html: string) => {
      const txt = document.createElement('textarea');
      txt.innerHTML = html;
      return txt.value;
    };

    const renderDetailText = (text: string, indent: number = 0) => {
      const indentation = '  '.repeat(indent);
      if (text === '') {
        return (
          <div
            key={`empty-${indent}`}
            className="h-2"
            data-cy="data-row-detail-line-empty"
          ></div>
        );
      }
      const cleanText = decodeHTML(text);
      return (
        <div
          key={cleanText}
          className="whitespace-pre-wrap"
          data-cy="data-row-detail-line"
        >
          {indentation}
          <span className="font-medium">{cleanText}</span>
        </div>
      );
    };

    const renderDetails = (details: string[], variant: 'primary' | 'secondary') => {
      const visibleLines = details.slice(0, 4);
      const hiddenLines = details.slice(4);

      return (
        <Tooltip>
          <TooltipTrigger asChild>
            <div
              className="cursor-help"
              data-cy={`data-row-details-${variant}`}
            >
              <div className="flex flex-col space-y-1">
                {visibleLines.map((line, lineIndex) =>
                  renderDetailText(line, line.startsWith('  ') ? 1 : 0)
                )}
              </div>
              {hiddenLines.length > 0 && (
                <div className="text-muted-foreground mt-1 flex items-center text-sm">
                  <span>...</span>
                  <Icons.Info className="mr-1 h-5 w-5" />
                </div>
              )}
            </div>
          </TooltipTrigger>
          <TooltipContent
            side="right"
            align="start"
            className="max-w-md"
          >
            <div className="text-secondary-foreground flex flex-col space-y-1 text-sm leading-normal">
              {details.map((line, lineIndex) =>
                renderDetailText(line, line.startsWith('  ') ? 1 : 0)
              )}
            </div>
          </TooltipContent>
        </Tooltip>
      );
    };

    return (
      <div
        ref={ref}
        className={cn('flex flex-col', !isVisible && 'opacity-60', className)}
      >
        <div
          className={`flex items-center ${
            isSelected ? 'bg-popover' : 'bg-muted'
          } group relative cursor-pointer`}
          onClick={onSelect}
          data-cy="data-row"
        >
          {/* Secondary Selection Tint (below hover, always visible when secondary-selected) */}
          {isSecondarySelected && (
            <div className="bg-primary/20 pointer-events-none absolute inset-0"></div>
          )}

          <div className="bg-primary/20 pointer-events-none absolute inset-0 opacity-0 transition-opacity group-hover:opacity-100"></div>

          {/* Number Box */}
          {number !== null && (
            <div
              className={`flex h-7 max-h-7 w-7 flex-shrink-0 items-center justify-center rounded-l border-r border-background text-base ${
                isSelected ? 'bg-highlight text-black' : 'bg-muted text-muted-foreground'
              } overflow-hidden`}
            >
              {number}
            </div>
          )}

          {/* add some space if there is not segment index */}
          {number === null && <div className="ml-1 h-7"></div>}
          {colorHex && (
            <div className="flex h-7 w-5 items-center justify-center">
              <span
                className="ml-2 h-2 w-2 rounded-full"
                style={{ backgroundColor: colorHex }}
              ></span>
            </div>
          )}

          {/* Label with Conditional Tooltip */}
          <div className="ml-2 flex-1 overflow-hidden">
            {isTitleLong ? (
              <Tooltip>
                <TooltipTrigger asChild>
                  <span
                    data-cy="data-row-title"
                    className={`cursor-default text-base ${
                      isSelected ? 'text-highlight' : 'text-muted-foreground'
                    } [overflow:hidden] [display:-webkit-box] [-webkit-line-clamp:2] [-webkit-box-orient:vertical]`}
                  >
                    {title}
                  </span>
                </TooltipTrigger>
                <TooltipContent
                  side="top"
                  align="center"
                >
                  {title}
                </TooltipContent>
              </Tooltip>
            ) : (
              <span
                data-cy="data-row-title"
                className={`text-base ${
                  isSelected ? 'text-highlight' : 'text-muted-foreground'
                } [overflow:hidden] [display:-webkit-box] [-webkit-line-clamp:2] [-webkit-box-orient:vertical]`}
              >
                {title}
              </span>
            )}
          </div>

          {/* Actions and Visibility Toggle */}
          <div className="relative ml-2 flex items-center space-x-1">
            {/* Visibility Toggle Icon */}
            <Button
              size="icon"
              variant="ghost"
              className={`h-6 w-6 transition-opacity ${
                isSelected || !isVisible ? 'opacity-100' : 'opacity-0 group-hover:opacity-100'
              }`}
              aria-label={isVisible ? t('Hide') : t('Show')}
              dataCY="data-row-visibility-toggle"
              onClick={e => {
                e.stopPropagation();
                onToggleVisibility(e);
              }}
            >
              {isVisible ? <Icons.Hide className="h-6 w-6" /> : <Icons.Show className="h-6 w-6" />}
            </Button>

            {/* Lock Icon (if needed) */}
            {isLocked && !disableEditing && (
              <Icons.Lock className="text-muted-foreground h-6 w-6" />
            )}

            {/* Status Components */}
            {statusComponents}

            {/* Actions Dropdown Menu */}
            {disableEditing && <div className="h-6 w-6"></div>}
            {!disableEditing && (
              <DropdownMenu onOpenChange={open => setIsDropdownOpen(open)}>
                <DropdownMenuTrigger asChild>
                  <Button
                    size="icon"
                    variant="ghost"
                    className={`h-6 w-6 transition-opacity ${
                      isSelected || isDropdownOpen
                        ? 'opacity-100'
                        : 'opacity-0 group-hover:opacity-100'
                    }`}
                    aria-label="Actions"
                    dataCY="actionsMenuTrigger"
                    onClick={e => e.stopPropagation()} // Prevent row selection on button click
                  >
                    <Icons.More className="h-6 w-6" />
                  </Button>
                </DropdownMenuTrigger>
                <DropdownMenuContent
                  align="end"
                  // this was causing issue for auto focus on input dialog
                  onCloseAutoFocus={e => e.preventDefault()}
                >
                  <>
                    <DropdownMenuItem onClick={e => handleAction('Rename', e)}>
                      <Icons.Rename className="text-foreground" />
                      <span
                        className="pl-2"
                        data-cy="Rename"
                      >
                        {t('Rename')}
                      </span>
                    </DropdownMenuItem>
                    {onCopy && (
                      <DropdownMenuItem onClick={e => handleAction('Copy', e)}>
                        <Icons.Copy className="text-foreground" />
                        <span
                          className="pl-2"
                          data-cy="Duplicate"
                        >
                          {t('Duplicate')}
                        </span>
                      </DropdownMenuItem>
                    )}
                    <DropdownMenuItem onClick={e => handleAction('Delete', e)}>
                      <Icons.Delete className="text-foreground" />
                      <span
                        className="pl-2"
                        data-cy="Delete"
                      >
                        {t('Delete')}
                      </span>
                    </DropdownMenuItem>
                    {onColor && (
                      <DropdownMenuItem onClick={e => handleAction('Color', e)}>
                        <Icons.ColorChange className="text-foreground" />
                        <span
                          className="pl-2"
                          data-cy="Change Color"
                        >
                          {t('Change Color')}
                        </span>
                      </DropdownMenuItem>
                    )}
                    <DropdownMenuItem onClick={e => handleAction('Lock', e)}>
                      <Icons.Lock className="text-foreground" />
                      <span
                        className="pl-2"
                        data-cy="LockToggle"
                      >
                        {isLocked ? t('Unlock') : t('Lock')}
                      </span>
                    </DropdownMenuItem>
                  </>
                </DropdownMenuContent>
              </DropdownMenu>
            )}
          </div>
        </div>

        {/* Details Section */}
        {details && (details.primary?.length > 0 || details.secondary?.length > 0) && (
          <div
            className="ml-7 px-2 py-2"
            data-cy="data-row-details"
          >
            <div className="text-secondary-foreground flex items-center gap-1 text-base leading-normal">
              {details.primary?.length > 0 && renderDetails(details.primary, 'primary')}
              {details.secondary?.length > 0 && (
                <div className="text-muted-foreground ml-auto text-sm">
                  {renderDetails(details.secondary, 'secondary')}
                </div>
              )}
            </div>
          </div>
        )}
      </div>
    );
  }
);

DataRowComponent.displayName = 'DataRow';

interface StatusProps {
  children: React.ReactNode;
}

interface StatusIndicatorProps {
  tooltip?: string;
  icon: React.ReactNode;
  defaultTooltip: string;
}

const StatusIndicator: React.FC<StatusIndicatorProps> = ({ tooltip, icon, defaultTooltip }) => (
  <Tooltip>
    <TooltipTrigger asChild>
      <div className="flex h-6 w-6 items-center justify-center">{icon}</div>
    </TooltipTrigger>
    <TooltipContent side="bottom">
      <div>{tooltip || defaultTooltip}</div>
    </TooltipContent>
  </Tooltip>
);

const Status: React.FC<StatusProps> & {
  Warning: React.FC<{ tooltip?: string }>;
  Success: React.FC<{ tooltip?: string }>;
  Error: React.FC<{ tooltip?: string }>;
  Info: React.FC<{ tooltip?: string }>;
} = ({ children }) => {
  return <>{children}</>;
};

const StatusWarning: React.FC<{ tooltip?: string }> = ({ tooltip }) => (
  <StatusIndicator
    tooltip={tooltip}
    icon={
      <Icons.ByName
        name="status-alert"
        className="h-4 w-4 text-yellow-500"
      />
    }
    defaultTooltip="Warning"
  />
);

const StatusSuccess: React.FC<{ tooltip?: string }> = ({ tooltip }) => (
  <StatusIndicator
    tooltip={tooltip}
    icon={<Icons.Checked className="h-4 w-4 text-green-500" />}
    defaultTooltip="Success"
  />
);

const StatusError: React.FC<{ tooltip?: string }> = ({ tooltip }) => (
  <StatusIndicator
    tooltip={tooltip}
    icon={
      <Icons.ByName
        name="status-error"
        className="h-4 w-4 text-red-500"
      />
    }
    defaultTooltip="Error"
  />
);

const StatusInfo: React.FC<{ tooltip?: string }> = ({ tooltip }) => (
  <StatusIndicator
    tooltip={tooltip}
    icon={<Icons.Info className="text-primary h-4 w-4" />}
    defaultTooltip="Info"
  />
);

Status.displayName = 'DataRow.Status';
StatusWarning.displayName = 'DataRow.Status.Warning';
StatusSuccess.displayName = 'DataRow.Status.Success';
StatusError.displayName = 'DataRow.Status.Error';
StatusInfo.displayName = 'DataRow.Status.Info';

Status.Warning = StatusWarning;
Status.Success = StatusSuccess;
Status.Error = StatusError;
Status.Info = StatusInfo;

const DataRow = DataRowComponent as typeof DataRowComponent & {
  Status: typeof Status;
};

DataRow.Status = Status;

export default DataRow;
export { DataRow };