/**
 * Small shared pieces for the compare sections: the section shell, the
 * row-label + per-school-cell grid, and tone-mapped chips. Copy passed into
 * these comes verbatim from the reviewed mockups
 * (docs/superpowers/specs/mockups/) — do not paraphrase it here.
 */

'use client';

import type { CSSProperties, ReactNode } from 'react';

import type { School } from '@/lib/types';
import { CHART_COLORS, CHART_TEXT_COLORS, shortName } from '@/lib/utils';
import { InfoPopover } from '@/components/InfoPopover';
import styles from './compareSections.module.css';

export function Section({
  title,
  how,
  children,
}: {
  title: string;
  how?: ReactNode;
  children: ReactNode;
}) {
  return (
    <section className={styles.section}>
      <h2 className={styles.sectionTitle}>{title}</h2>
      {how && <p className={styles.how}>{how}</p>}
      {children}
    </section>
  );
}

export function SectionGrid({
  schools,
  children,
}: {
  schools: School[];
  children: ReactNode;
}) {
  return (
    <div
      className={styles.grid}
      style={{ '--school-count': schools.length } as CSSProperties}
    >
      {children}
    </div>
  );
}

export function RowLabel({ children, tip }: { children: ReactNode; tip?: string }) {
  return (
    <div className={styles.rowLabel}>
      {children}
      {tip && <InfoPopover plain={tip} />}
    </div>
  );
}

/**
 * One measure = its row label plus a cell per school. `display: contents` on
 * desktop (see CSS) makes these flow into the section grid as if this wrapper
 * weren't here, keeping columns aligned across measures; on mobile the wrapper
 * becomes a card so each measure reads as its own block.
 */
export function Measure({
  label,
  tip,
  children,
}: {
  label: ReactNode;
  tip?: string;
  children: ReactNode;
}) {
  return (
    <div className={styles.measure}>
      <RowLabel tip={tip}>{label}</RowLabel>
      {children}
    </div>
  );
}

export function Cell({
  school,
  index,
  children,
}: {
  school: School;
  index: number;
  children: ReactNode;
}) {
  return (
    <div
      className={styles.cell}
      style={
        {
          '--sc': CHART_TEXT_COLORS[index % CHART_TEXT_COLORS.length],
          '--dot': CHART_COLORS[index % CHART_COLORS.length],
        } as CSSProperties
      }
    >
      {/* Mobile-only per-school tag (dot + short name); hidden on desktop,
          where the column header identifies the school. */}
      <span className={styles.cellTag}>
        <span className={styles.cellDot} aria-hidden="true" />
        {shortName(school.school_name)}
      </span>
      {children}
    </div>
  );
}

export type ChipTone = 'good' | 'warn' | 'bad' | 'neutral';

const CHIP_TONE_CLASS: Record<ChipTone, string> = {
  good: styles.chipGood,
  warn: styles.chipWarn,
  bad: styles.chipBad,
  neutral: styles.chipNeutral,
};

export function Chip({ tone, children }: { tone: ChipTone; children: ReactNode }) {
  return <span className={`${styles.chip} ${CHIP_TONE_CLASS[tone]}`}>{children}</span>;
}

export const sectionStyles = styles;