import { el, Panel } from './hud';
import { assetUrl } from '../scenes/assets';
import { gradeOf } from '../game/judging';
import { DAYS } from '../game/orders';
import { DRILLS, medalWord, type Medal } from '../game/drills';
import { CURE_DAYS, type CureRecord } from '../sim/cure';
import { CATALOGUE } from '../game/shop';
import { SKILLS, freePoints, canLearn } from '../game/skills';

/**
 * The front door. One button, one piece of art, one joke — and now the ledger:
 * every day you've reached, replayable, with your best grade stamped on it.
 * Chasing the S column is the whole late game.
 */
export class Title {
  private panel: Panel;

  constructor(
    save: { day: number; maxDay: number; best: Record<string, number>; shadowed?: Record<string, boolean>; starter?: { born: number; fed: number; deaths: number }; drills?: Record<string, { medal: Medal; cv: number; seconds: number }>; cures?: CureRecord[]; daysServed?: number; money?: number; owned?: string[]; skills?: string[] },
    onStart: (day?: number | 'daily' | string, shadow?: boolean) => void,
    onFeed?: () => void,
    onOpenCure?: (id: string) => { note: string; score: number } | null,
    onBuy?: (id: string) => { ok: boolean; note: string },
    onLearn?: (id: string) => { ok: boolean; note: string },
  ) {
    this.panel = new Panel('title');
    const wrap = el('div', 'title-wrap', this.panel.root);
    const art = el('img', 'title-art', wrap);
    art.src = assetUrl('/assets/img/title_art.png');
    art.alt = '';
    const txt = el('div', 'title-txt', wrap);
    el('h1', undefined, txt, 'TOASTSIM');
    el('p', 'title-sub', txt, 'Bread goes in. You are judged.');
    const btn = el('button', 'btn', txt, save.day > 1 ? `RESUME — DAY ${save.day}` : 'START DAY 1');
    let shadow = false;
    const go = (day?: number | 'daily' | string) => {
      this.panel.dispose();
      onStart(day, shadow);
    };
    btn.addEventListener('click', () => go());
    const today = new Date().toISOString().slice(0, 10);
    const dailyBest = (save as { daily?: Record<string, number> }).daily?.[today];
    const daily = el('button', 'btn ghost daily-btn', txt, dailyBest !== undefined ? `THE DAILY ✓ ${dailyBest.toFixed(1)}` : 'THE DAILY — same deal for everyone');
    daily.addEventListener('click', () => go('daily'));

    // Hard mode, earned: once you've pulled an S he offers to stop talking.
    // No words on the bench — you cook by the face, the sound, the food.
    if (Object.values(save.best).some((b) => gradeOf(b) === 'S')) {
      const sh = el('button', 'btn ghost shadow-btn', txt, "THE INSPECTOR'S SHADOW — he says nothing");
      sh.addEventListener('click', () => {
        shadow = !shadow;
        sh.classList.toggle('on', shadow);
        sh.textContent = shadow ? "THE INSPECTOR'S SHADOW — armed. no words today" : "THE INSPECTOR'S SHADOW — he says nothing";
      });
    }

    // STAGE — culinary school. No customer, no clock but your own, and the
    // only thing it can change is your own medal book.
    const stageLbl = el('div', 'title-days-lbl', txt, 'STAGE \u2014 the drills. one board, one spec, one clock');
    void stageLbl;
    const stage = el('div', 'title-drills', txt);
    for (const d of DRILLS) {
      if (d.needsSkill && !(save.skills ?? []).includes(d.needsSkill)) continue;
      const best = save.drills?.[d.id];
      const b = el('button', 'btn ghost drill-btn', stage);
      el('span', 'drill-name', b, d.label);
      el('span', `drill-best medal-${best?.medal ?? 'none'}`, b, best?.medal ? `${medalWord(best.medal)} \u00b7 ${Math.round(best.seconds)}s` : best ? 'attempted \u2014 no medal' : 'not attempted');
      b.addEventListener('click', () => go(`drill:${d.id}`));
    }

    // THE SKILL PAGE. Three short branches; every node is a verb or a floor.
    {
      const free = freePoints(save as never);
      const have = save.skills ?? [];
      if (free > 0 || have.length) {
        el('div', 'title-days-lbl', txt, `TECHNIQUES \u2014 ${free} point${free === 1 ? '' : 's'} to spend`);
        const page = el('div', 'title-drills', txt);
        for (const n of SKILLS) {
          const known = have.includes(n.id);
          const check = canLearn(save as never, n.id);
          const b = el('button', `btn ghost drill-btn skill-row${known ? ' owned' : ''}`, page);
          el('span', 'drill-name', b, `${n.branch} \u00b7 ${n.label}`);
          el('span', 'drill-best', b, known ? 'LEARNED' : check.ok ? `${n.cost} pt${n.cost > 1 ? 's' : ''}` : check.why);
          b.title = n.blurb;
          if (known || !check.ok) { (b as HTMLButtonElement).disabled = true; continue; }
          b.addEventListener('click', () => {
            const r = onLearn?.(n.id);
            if (!r || !r.ok) return;
            b.textContent = '';
            el('span', 'drill-name', b, r.note);
            b.classList.add('owned');
            (b as HTMLButtonElement).disabled = true;
          });
        }
      }
    }

    // THE CATALOGUE. Cheap gear does not tax your score — it wobbles, and it
    // drops things on the floor. This is where that stops.
    {
      const money = save.money ?? 0;
      const owned = save.owned ?? [];
      const unbought = CATALOGUE.filter((c) => !owned.includes(c.id));
      if (money > 0 || owned.length || unbought.length < CATALOGUE.length) {
        el('div', 'title-days-lbl', txt, `THE CATALOGUE \u2014 $${money} in the till`);
        const list = el('div', 'title-drills', txt);
        for (const item of CATALOGUE) {
          const have = owned.includes(item.id);
          const b = el('button', `btn ghost drill-btn cat-row${have ? ' owned' : ''}`, list);
          const name = el('span', 'drill-name', b, item.label);
          void name;
          el('span', 'drill-best', b, have ? 'ON THE BENCH' : `$${item.price}`);
          b.title = item.blurb;
          if (have) { (b as HTMLButtonElement).disabled = true; continue; }
          b.addEventListener('click', () => {
            const r = onBuy?.(item.id);
            if (!r) return;
            b.textContent = '';
            el('span', 'drill-name', b, r.ok ? r.note : `${item.label} \u2014 ${r.note}`);
            if (r.ok) { b.classList.add('owned'); (b as HTMLButtonElement).disabled = true; }
          });
        }
      }
    }

    // THE CURING SHELF. The only thing in this kitchen you cannot finish
    // today: jars stamped with the day they were packed, counting up.
    if (save.cures && save.cures.length) {
      el('div', 'title-days-lbl', txt, 'THE CURING SHELF \u2014 time is the ingredient');
      const shelf = el('div', 'title-drills', txt);
      for (const c of save.cures.slice()) {
        const waited = Math.max(0, (save.daysServed ?? 0) - c.startedDay);
        const ready = waited >= CURE_DAYS;
        const b = el('button', `btn ghost drill-btn jar-row${ready ? ' ready' : ''}`, shelf);
        el('span', 'drill-name', b, `${c.kind.toUpperCase()} \u2014 packed ${waited === 0 ? 'today' : `${waited} service${waited > 1 ? 's' : ''} ago`}`);
        el('span', 'drill-best', b, ready ? `day ${waited} of ${CURE_DAYS} \u00b7 OPEN IT` : `day ${waited} of ${CURE_DAYS}`);
        b.addEventListener('click', () => {
          const r = onOpenCure?.(c.id);
          if (!r) return;
          // Opening is irreversible, so the answer replaces the row in place.
          b.textContent = '';
          el('span', 'drill-name', b, r.note);
          b.classList.add('opened');
          b.disabled = true;
        });
      }
    }

    // THE MOTHER: the sourdough starter. A pet that lives in the save and
    // holds a grudge. Feeding is one click; forgetting is a funeral.
    if (save.starter) {
      const st = save.starter;
      const jar = el('button', 'btn ghost jar-btn', txt, '');
      const jarImg = el('img', 'jar-img', jar) as HTMLImageElement;
      jarImg.alt = '';
      const jarTxt = el('span', undefined, jar, '');
      const label = () => {
        const gap0 = save.maxDay - st.fed;
        jarImg.src = assetUrl(`/assets/img/jar_${gap0 >= 5 ? 'dead' : gap0 >= 3 ? 'sulking' : 'bubbling'}.png`);
        const gap = gap0;
        const name = st.deaths > 0 ? `THE MOTHER (${['second', 'third', 'fourth', 'umpteenth'][Math.min(st.deaths - 1, 3)]} of her name)` : 'THE MOTHER';
        if (gap >= 5) return `\u{1FAD9} ${name} has gone still. begin again \u2014 she forgives, mostly`;
        if (gap === 0) return `\u{1FAD9} ${name} \u2014 fed. bubbling like gossip`;
        if (gap === 1) return `\u{1FAD9} ${name} \u2014 peckish. FEED HER`;
        if (gap === 4) return `\u{1FAD9} ${name} \u2014 one day from the end. FEED HER NOW`;
        return `\u{1FAD9} ${name} \u2014 hungry (${gap} days). the crumb suffers`;
      };
      jarTxt.textContent = label();
      jar.addEventListener('click', () => {
        const gap = save.maxDay - st.fed;
        if (gap >= 5) { st.deaths++; st.born = save.maxDay; }
        st.fed = save.maxDay;
        onFeed?.();
        jarTxt.textContent = label();
        jar.classList.add('fed');
        window.setTimeout(() => jar.classList.remove('fed'), 700);
      });
    }

    // The day ledger: one chip per reached day, best grade underneath. Click to
    // replay it (progress never regresses — maxDay remembers how far you got).
    if (save.maxDay > 1) {
      el('div', 'title-days-lbl', txt, `THE LEDGER — ${DAYS.length} on the card, then the kitchen deals`);
      const grid = el('div', 'title-days', txt);
      for (let d = 1; d <= save.maxDay; d++) {
        const chip = el('button', 'day-chip', grid);
        el('span', 'day-num', chip, String(d));
        const bestScore = save.best[`day${d}`];
        const grade = bestScore !== undefined ? gradeOf(bestScore) : null;
        const star = save.shadowed?.[`day${d}`] ? '★' : '';
        const g = el('span', `day-grade${grade ? ` grade-${grade}` : ''}`, chip, (grade ?? '·') + star);
        void g;
        chip.title = bestScore !== undefined ? `day ${d} — best ${bestScore.toFixed(1)}/10` : `day ${d} — not judged yet`;
        chip.addEventListener('click', () => go(d));
      }
    }

    const keys = el('div', 'title-keys', txt);
    el('div', undefined, keys, 'SPACE — lever down, then pop');
    el('div', undefined, keys, 'DRAG — fish the right tool from the drawer');
    el('div', undefined, keys, 'DRAG — spread · WHEEL — tilt the knife · dip when empty');
    el('div', undefined, keys, 'ENTER — serve it to him');
    el('div', undefined, keys, 'R — the radio (he pretends not to like it)');
  }
}