/**
 * SchoolRow Component
 * Compact row-based school display for search results list view
 */

import type { School } from '@/lib/types';
import { formatPercentage, formatProgress, calculateTrend } from '@/lib/utils';
import { progressBand } from '@/lib/metrics';
import styles from './SchoolRow.module.css';

interface SchoolRowProps {
  school: School;
  isLocationSearch?: boolean;
  isInCompare?: boolean;
  onAddToCompare?: (school: School) => void;
  onRemoveFromCompare?: (urn: number) => void;
}

export function SchoolRow({
  school,
  isLocationSearch,
  isInCompare = false,
  onAddToCompare,
  onRemoveFromCompare,
}: SchoolRowProps) {
  const trend = calculateTrend(school.rwm_expected_pct, school.prev_rwm_expected_pct);

  const hasProgress =
    school.reading_progress != null ||
    school.writing_progress != null ||
    school.maths_progress != null;

  const handleCompareClick = () => {
    if (isInCompare) {
      onRemoveFromCompare?.(school.urn);
    } else {
      onAddToCompare?.(school);
    }
  };

  return (
    <div className={`${styles.row} ${isInCompare ? styles.rowInCompare : ''}`}>
      <div className={styles.rowMain}>
        {/* Line 1: Name + score + actions */}
        <div className={styles.rowTop}>
          <a href={`/school/${school.urn}`} className={styles.schoolName}>
            {school.school_name}
          </a>

          <div className={styles.scoreBlock}>
            {school.rwm_expected_pct != null ? (
              <>
                <strong className={styles.scoreValue}>
                  {formatPercentage(school.rwm_expected_pct, 0)}
                </strong>
                {school.prev_rwm_expected_pct != null && (
                  <span
                    className={`${styles.trend} ${styles[`trend${trend.charAt(0).toUpperCase() + trend.slice(1)}`]}`}
                    title={`Previous year: ${formatPercentage(school.prev_rwm_expected_pct)}`}
                  >
                    {trend === 'up' && (
                      <svg viewBox="0 0 16 16" fill="none" width="10" height="10">
                        <path d="M8 3L14 10H2L8 3Z" fill="currentColor" />
                      </svg>
                    )}
                    {trend === 'down' && (
                      <svg viewBox="0 0 16 16" fill="none" width="10" height="10">
                        <path d="M8 13L2 6H14L8 13Z" fill="currentColor" />
                      </svg>
                    )}
                    {trend === 'stable' && (
                      <svg viewBox="0 0 16 16" fill="none" width="10" height="10">
                        <rect x="2" y="7" width="12" height="2" rx="1" fill="currentColor" />
                      </svg>
                    )}
                  </span>
                )}
              </>
            ) : (
              <span className={styles.scoreNA}>—</span>
            )}
            <span className={styles.scoreLabel}>R, W &amp; M</span>
          </div>

          <div className={styles.rowActions}>
            <a href={`/school/${school.urn}`} className={styles.btnView}>
              View
            </a>
            {(onAddToCompare || onRemoveFromCompare) && (
              <button
                onClick={handleCompareClick}
                className={isInCompare ? styles.btnRemove : styles.btnCompare}
              >
                {isInCompare ? '✓ Remove' : '+ Add'}
              </button>
            )}
          </div>
        </div>

        {/* Line 2: Meta tags */}
        <div className={styles.rowMeta}>
          {school.local_authority && <span>{school.local_authority}</span>}
          {school.school_type && <span>{school.school_type}</span>}
          {!isLocationSearch &&
            school.religious_denomination &&
            school.religious_denomination !== 'Does not apply' && (
              <span>{school.religious_denomination}</span>
            )}
          {isLocationSearch && school.distance != null && (
            <span className={styles.distanceBadge}>
              {(school.distance / 1609.34).toFixed(1)} mi
            </span>
          )}
        </div>

        {/* Line 3: Progress scores with plain-language bands */}
        {hasProgress && (
          <div className={styles.rowProgress}>
            {school.reading_progress != null && (
              <span className={styles.progressItem}>
                Reading{' '}
                <strong className={styles.progressValue}>
                  {formatProgress(school.reading_progress)}
                </strong>
                <em className={styles.progressBand}>
                  {progressBand(school.reading_progress)}
                </em>
              </span>
            )}
            {school.writing_progress != null && (
              <span className={styles.progressItem}>
                Writing{' '}
                <strong className={styles.progressValue}>
                  {formatProgress(school.writing_progress)}
                </strong>
                <em className={styles.progressBand}>
                  {progressBand(school.writing_progress)}
                </em>
              </span>
            )}
            {school.maths_progress != null && (
              <span className={styles.progressItem}>
                Maths{' '}
                <strong className={styles.progressValue}>
                  {formatProgress(school.maths_progress)}
                </strong>
                <em className={styles.progressBand}>
                  {progressBand(school.maths_progress)}
                </em>
              </span>
            )}
          </div>
        )}
      </div>
    </div>
  );
}