/**
 * 新宿 LOFT — https://www.loft-prj.co.jp/schedule/loft
 *
 * The schedule page renders events inside `.eventlist` items.
 */
import * as cheerio from "cheerio";
import type { Scraper, VenueMeta } from "./base";
import type { EventInput } from "~/lib/db.server";

export const venue: VenueMeta = {
  id: "shinjuku-loft",
  name: "新宿 LOFT",
  url: "https://www.loft-prj.co.jp",
  area: "新宿",
};

export const scraper: Scraper = {
  venue,
  async scrape(): Promise<EventInput[]> {
    const res = await fetch("https://www.loft-prj.co.jp/schedule/loft");
    if (!res.ok) throw new Error(`HTTP ${res.status}`);
    const html = await res.text();
    const $ = cheerio.load(html);
    const events: EventInput[] = [];

    $(".eventlist__item, .schedule-item, .event_list li").each((_, el) => {
      const $el = $(el);

      const title = $el.find(".eventlist__title, .event-title, h3, h2").first().text().trim();
      if (!title) return;

      const rawDate =
        $el.find(".eventlist__date, .event-date, time").first().text().trim() ||
        $el.find("time").attr("datetime") ||
        "";
      const date = parseJapaneseDate(rawDate);
      if (!date) return;

      const timeText = $el.find(".eventlist__time, .time").first().text();
      const openMatch = timeText.match(/OPEN[：: ]*(\d{2}:\d{2})/i);
      const startMatch = timeText.match(/START[：: ]*(\d{2}:\d{2})/i);

      const detailHref = $el.find("a[href]").first().attr("href") ?? null;

      events.push({
        venue_id: venue.id,
        title,
        artist: $el.find(".eventlist__artist, .artist").first().text().trim() || null,
        date,
        open_time: openMatch?.[1] ?? null,
        start_time: startMatch?.[1] ?? null,
        ticket_url:
          $el.find("a[href*='eplus'], a[href*='pia'], a[href*='ticket']").first().attr("href") ?? null,
        image_url: $el.find("img").first().attr("src")
          ? absoluteUrl($el.find("img").first().attr("src")!, venue.url)
          : null,
        source_url: detailHref ? absoluteUrl(detailHref, venue.url) : null,
      });
    });

    return events;
  },
};

function parseJapaneseDate(raw: string): string | null {
  const m =
    raw.match(/(\d{4})[./年](\d{1,2})[./月](\d{1,2})/) ||
    raw.match(/(\d{1,2})[./月](\d{1,2})/);
  if (!m) return null;
  if (m.length === 4) {
    return `${m[1]}-${m[2].padStart(2, "0")}-${m[3].padStart(2, "0")}`;
  }
  const year = new Date().getFullYear();
  return `${year}-${m[1].padStart(2, "0")}-${m[2].padStart(2, "0")}`;
}

function absoluteUrl(url: string, base: string): string {
  if (url.startsWith("http")) return url;
  return url.startsWith("/") ? base + url : `${base}/${url}`;
}