"use client";

import { memo } from "react";
import type { HistoryAccent, HistoryItem, HistoryViewProps } from "./History.types";

const ACCENT_CLASS: Record<HistoryAccent, string> = {
  brand: "bg-[var(--color-content-default-brand-primary)]",
  positive: "bg-[var(--color-surface-default-positive-primary)]",
};

const DATE_CLASS =
  "font-bricolage-grotesque text-display-xxs text-[var(--color-content-default-primary)]";

const BODY_CLASS =
  "font-inter text-paragraph-m text-[var(--color-content-default-secondary)]";

function DateMark({ date, accent }: { date: string; accent: HistoryAccent }) {
  return (
    <div className="flex w-full flex-col gap-1 md:w-[140px] md:shrink-0">
      <p className={`${DATE_CLASS} whitespace-nowrap`}>{date}</p>
      <span className={`h-0.5 w-8 ${ACCENT_CLASS[accent]}`} aria-hidden />
    </div>
  );
}

function HistoryItemView({ item }: { item: HistoryItem }) {
  if (item.kind === "callout") {
    return (
      <aside className="flex flex-col gap-5 border-l-[3px] border-[var(--color-content-default-brand-primary)] pl-6">
        <p className={DATE_CLASS}>{item.title}</p>
        <p className={BODY_CLASS}>{item.body}</p>
      </aside>
    );
  }

  return (
    <div
      className={`flex flex-col gap-4 md:flex-row md:gap-8 ${
        item.accent === "positive" ? "pt-6" : ""
      }`}
    >
      <DateMark date={item.date} accent={item.accent} />
      <p className={`min-w-0 flex-1 ${BODY_CLASS}`}>
        {item.body.map((run, index) =>
          run.emphasis ? (
            <em key={index} className="italic">
              {run.text}
            </em>
          ) : (
            <span key={index}>{run.text}</span>
          ),
        )}
      </p>
    </div>
  );
}

function HistoryView({ heading, items }: HistoryViewProps) {
  return (
    <section
      data-figma-node="24220:30635"
      className="flex flex-col items-center gap-10 bg-black px-[var(--space-400)] py-12 md:gap-16 md:px-[var(--space-1800)] md:py-[88px]"
      aria-labelledby="about-history-heading"
    >
      <h2
        id="about-history-heading"
        className="w-full max-w-[800px] text-center font-bricolage-grotesque text-heading-l text-[var(--color-content-default-primary)]"
      >
        {heading}
      </h2>
      <div className="flex w-full max-w-[800px] flex-col gap-8 md:gap-10">
        {items.map((item, index) => (
          <HistoryItemView key={item.kind === "entry" ? item.date : index} item={item} />
        ))}
      </div>
    </section>
  );
}

HistoryView.displayName = "HistoryView";

export default memo(HistoryView);