"use client";

import { useMemo, useState } from "react";
import { useToast } from "@/lib/toast";
import type { Destination } from "@/lib/types";

interface Phrase {
  local: string;
  pinyin?: string;
  zh: string;
}

const PHRASES: Record<string, { lang: string; flag: string; items: Phrase[] }> = {
  bali: {
    lang: "印尼语", flag: "🇮🇩",
    items: [
      { local: "Halo", zh: "你好" },
      { local: "Terima kasih", zh: "谢谢" },
      { local: "Berapa harganya?", zh: "这个多少钱？" },
      { local: "WiFi-nya bagus?", zh: "网速好吗？" },
      { local: "Saya mau sewa sebulan", zh: "我想租一个月" },
      { local: "Di mana toilet?", zh: "洗手间在哪？" },
    ],
  },
  chiangmai: {
    lang: "泰语", flag: "🇹🇭",
    items: [
      { local: "สวัสดี", pinyin: "Sawatdee", zh: "你好" },
      { local: "ขอบคุณ", pinyin: "Khop khun", zh: "谢谢" },
      { local: "เท่าไหร่", pinyin: "Tao rai", zh: "多少钱？" },
      { local: "WiFi แรงไหม", pinyin: "WiFi raeng mai", zh: "网快吗？" },
      { local: "อร่อยมาก", pinyin: "Aroi mak", zh: "很好吃" },
      { local: "ไม่เผ็ด", pinyin: "Mai phet", zh: "不要辣" },
    ],
  },
  lisbon: {
    lang: "葡萄牙语", flag: "🇵🇹",
    items: [
      { local: "Olá", zh: "你好" },
      { local: "Obrigado / Obrigada", zh: "谢谢（男/女）" },
      { local: "Quanto custa?", zh: "多少钱？" },
      { local: "O WiFi é bom?", zh: "网好吗？" },
      { local: "Uma cerveja, por favor", zh: "请来一杯啤酒" },
      { local: "Onde fica o coworking?", zh: "联合办公在哪？" },
    ],
  },
  barcelona: {
    lang: "西班牙语", flag: "🇪🇸",
    items: [
      { local: "Hola", zh: "你好" },
      { local: "Gracias", zh: "谢谢" },
      { local: "¿Cuánto cuesta?", zh: "多少钱？" },
      { local: "¿Hay buen WiFi?", zh: "有好网吗？" },
      { local: "La cuenta, por favor", zh: "买单" },
      { local: "¿Dónde está el metro?", zh: "地铁在哪？" },
    ],
  },
  mexico: {
    lang: "西班牙语", flag: "🇲🇽",
    items: [
      { local: "Qué onda", zh: "嘿（口语）" },
      { local: "Gracias", zh: "谢谢" },
      { local: "¿Cuánto cuesta?", zh: "多少钱？" },
      { local: "Sin chile, por favor", zh: "不要辣" },
      { local: "¿Tienen WiFi?", zh: "有 WiFi 吗？" },
      { local: "La cuenta, por favor", zh: "买单" },
    ],
  },
  tokyo: {
    lang: "日语", flag: "🇯🇵",
    items: [
      { local: "こんにちは", pinyin: "Konnichiwa", zh: "你好" },
      { local: "ありがとう", pinyin: "Arigatou", zh: "谢谢" },
      { local: "いくらですか", pinyin: "Ikura desu ka", zh: "多少钱？" },
      { local: "Wi-Fiはありますか", pinyin: "Wi-Fi wa arimasu ka", zh: "有 WiFi 吗？" },
      { local: "おいしい", pinyin: "Oishii", zh: "好吃" },
      { local: "すみません", pinyin: "Sumimasen", zh: "不好意思 / 借过" },
    ],
  },
};

interface Props {
  destinations: Destination[];
}

export default function Phrasebook({ destinations }: Props) {
  const { toast } = useToast();
  const [slug, setSlug] = useState(destinations[0]?.slug || "bali");
  const book = useMemo(() => PHRASES[slug] || PHRASES.bali, [slug]);
  const dest = destinations.find((d) => d.slug === slug);

  const copy = async (text: string) => {
    await navigator.clipboard.writeText(text);
    toast(`已复制：${text}`);
  };

  return (
    <section className="section phrase-section" id="phrases">
      <div className="container">
        <div className="section-header reveal">
          <span className="section-tag">🗣️ PHRASES</span>
          <h2>游民生存短语本</h2>
          <p>点一下复制常用语，落地就能开口</p>
        </div>

        <div className="housing-cities reveal">
          {destinations.map((d) => (
            <button
              key={d.slug}
              className={`season-city-btn${slug === d.slug ? " active" : ""}`}
              onClick={() => setSlug(d.slug)}
            >
              {d.emoji} {d.name}
            </button>
          ))}
        </div>

        <div className="phrase-card reveal">
          <div className="phrase-lang">
            {book.flag} {dest?.name} · {book.lang}
          </div>
          <div className="phrase-grid">
            {book.items.map((p) => (
              <button key={p.local} className="phrase-item" onClick={() => copy(p.local)} title="点击复制">
                <strong>{p.local}</strong>
                {p.pinyin && <span className="phrase-pinyin">{p.pinyin}</span>}
                <span className="phrase-zh">{p.zh}</span>
              </button>
            ))}
          </div>
        </div>
      </div>
    </section>
  );
}