import { type CSSProperties, type Dispatch, type SetStateAction } from 'react';

import { PlatformActionButton } from '../common/PlatformActionButton';
import type {
  CropExpandPanelState,
  CropExpandRatioValue,
} from './ImageCanvasEditorTypes';

type ImageCanvasCropExpandPanelViewProps = {
  panel: CropExpandPanelState;
  style: CSSProperties;
  setCropExpandPanel: Dispatch<SetStateAction<CropExpandPanelState | null>>;
  onSubmit: () => void;
};

const CROP_EXPAND_RATIO_OPTIONS: Array<{
  value: CropExpandRatioValue;
  label: string;
  shape?: 'square' | 'landscape' | 'portrait';
}> = [
  { value: 'free', label: '自由比例' },
  { value: '1:1', label: '1:1', shape: 'square' },
  { value: '4:3', label: '4:3', shape: 'landscape' },
  { value: '3:4', label: '3:4', shape: 'portrait' },
  { value: '16:9', label: '16:9', shape: 'landscape' },
  { value: '9:16', label: '9:16', shape: 'portrait' },
] as const;

function resetFailedCropExpandPanel(panel: CropExpandPanelState) {
  return {
    ...panel,
    status: panel.status === 'failed' ? 'idle' : panel.status,
    errorMessage: panel.status === 'failed' ? undefined : panel.errorMessage,
  };
}

export function ImageCanvasCropExpandPanelView({
  panel,
  style,
  setCropExpandPanel,
  onSubmit,
}: ImageCanvasCropExpandPanelViewProps) {
  return (
    <form
      className="image-canvas-editor__crop-expand-panel"
      style={style}
      role="dialog"
      aria-label="裁扩图片"
      onPointerDown={(event) => event.stopPropagation()}
      onSubmit={(event) => {
        event.preventDefault();
        if (panel.status !== 'processing') {
          onSubmit();
        }
      }}
    >
      <div className="image-canvas-editor__crop-expand-head">
        <strong>裁扩</strong>
      </div>
      <div className="image-canvas-editor__crop-expand-ratios">
        {CROP_EXPAND_RATIO_OPTIONS.map((option) => (
          <button
            key={option.value}
            type="button"
            className={`image-canvas-editor__crop-expand-ratio ${
              panel.ratio === option.value
                ? 'image-canvas-editor__crop-expand-ratio--selected'
                : ''
            }`}
            aria-pressed={panel.ratio === option.value}
            onClick={() =>
              setCropExpandPanel((currentPanel) =>
                currentPanel
                  ? {
                      ...resetFailedCropExpandPanel(currentPanel),
                      ratio: option.value,
                    }
                  : currentPanel,
              )
            }
          >
            <span
              className={`image-canvas-editor__crop-expand-ratio-shape ${
                option.shape
                  ? `image-canvas-editor__crop-expand-ratio-shape--${option.shape}`
                  : ''
              }`}
              aria-hidden="true"
            />
            <span>{option.label}</span>
          </button>
        ))}
      </div>
      {panel.status === 'failed' ? (
        <p className="image-canvas-editor__crop-expand-error" role="alert">
          {panel.errorMessage}
        </p>
      ) : null}
      <div className="image-canvas-editor__crop-expand-actions">
        <PlatformActionButton
          type="button"
          tone="secondary"
          size="sm"
          disabled={panel.status === 'processing'}
          onClick={() => setCropExpandPanel(null)}
        >
          取消
        </PlatformActionButton>
        <PlatformActionButton
          type="submit"
          tone="primary"
          size="sm"
          disabled={panel.status === 'processing'}
        >
          {panel.status === 'processing' ? '处理中' : '完成'}
        </PlatformActionButton>
      </div>
    </form>
  );
}