"use client";

import { useState, useEffect } from "react";
import { motion, AnimatePresence } from "framer-motion";
import ThemeToggle from "./ThemeToggle";

function getWeatherEmoji(code: string): string {
  const c = parseInt(code);
  if (c === 113) return "☀️";
  if (c === 116) return "⛅";
  if (c === 119 || c === 122) return "☁️";
  if (c >= 176 && c <= 300) return "🌧️";
  if (c >= 200 && c <= 210) return "⛈️";
  if (c >= 210 && c <= 260) return "❄️";
  return "🌤️";
}

function getDayName(dateStr: string): string {
  const d = new Date(dateStr + "T12:00:00");
  const today = new Date();
  const tomorrow = new Date(today);
  tomorrow.setDate(today.getDate() + 1);
  if (d.toDateString() === today.toDateString()) return "Сег";
  if (d.toDateString() === tomorrow.toDateString()) return "Завт";
  return d.toLocaleDateString("ru-RU", { weekday: "short" });
}

interface Props {
  isDark: boolean;
  onToggleTheme: () => void;
  weather: any;
  isDemo?: boolean;
}

export default function TopBar({ isDark, onToggleTheme, weather, isDemo }: Props) {
  const [time, setTime] = useState("");
  const [date, setDate] = useState("");
  const [showModal, setShowModal] = useState(false);

  useEffect(() => {
    const update = () => {
      const now = new Date();
      setTime(now.toLocaleTimeString("ru-RU", { hour: "2-digit", minute: "2-digit" }));
      setDate(now.toLocaleDateString("ru-RU", { weekday: "short", day: "numeric", month: "long" }));
    };
    update();
    const id = setInterval(update, 1000);
    return () => clearInterval(id);
  }, []);

  const hasWeather = weather && weather.temp && weather.temp !== "—";

  return (
    <>
      <motion.div
        className="glass-card px-6 py-3 flex items-center justify-between no-select flex-shrink-0"
        style={{ borderRadius: "20px" }}
        initial={{ opacity: 0, y: -20 }}
        animate={{ opacity: 1, y: 0 }}
        transition={{ duration: 0.5 }}
      >
        {/* Time & Date */}
        <div className="flex items-baseline gap-4">
          <span className="font-black tracking-tight leading-none" style={{ fontSize: "42px", color: "var(--text-primary)" }}>
            {time}
          </span>
          <span className="text-sm font-medium capitalize" style={{ color: "var(--text-secondary)" }}>
            {date}
          </span>
        </div>

        {/* Weather pill — clickable */}
        {hasWeather ? (
          <motion.button
            className="flex items-center gap-3 px-5 py-2 rounded-2xl cursor-pointer"
            style={{ background: "rgba(59,130,246,0.1)", border: "1px solid rgba(59,130,246,0.22)" }}
            initial={{ opacity: 0, scale: 0.9 }}
            animate={{ opacity: 1, scale: 1 }}
            transition={{ delay: 0.3 }}
            whileHover={{ scale: 1.03 }}
            whileTap={{ scale: 0.97 }}
            onClick={() => setShowModal(true)}
          >
            <span className="text-2xl leading-none">{getWeatherEmoji(weather.weatherCode)}</span>
            <div>
              <div className="text-xl font-black leading-tight" style={{ color: "var(--text-primary)" }}>{weather.temp}°C</div>
              <div className="text-xs leading-tight" style={{ color: "var(--text-secondary)" }}>{weather.desc}</div>
            </div>
            <span className="text-xs ml-1" style={{ color: "var(--text-secondary)", opacity: 0.6 }}>▼</span>
          </motion.button>
        ) : (
          <div className="text-sm px-4 py-2 rounded-2xl" style={{ color: "var(--text-secondary)", background: "rgba(255,255,255,0.04)" }}>
            🌤️ {weather ? "Загрузка..." : "—"}
          </div>
        )}

        {/* Theme toggle + Demo badge */}
        <div className="flex items-center gap-3">
          {isDemo && (
            <motion.span
              className="text-xs px-2.5 py-1 rounded-full font-semibold"
              style={{ background: "rgba(245,158,11,0.15)", color: "#f59e0b", border: "1px solid rgba(245,158,11,0.3)" }}
              initial={{ opacity: 0 }}
              animate={{ opacity: 1 }}
            >
              Demo
            </motion.span>
          )}
          <ThemeToggle isDark={isDark} onToggle={onToggleTheme} />
        </div>
      </motion.div>

      {/* Weather Modal */}
      <AnimatePresence>
        {showModal && weather && (
          <motion.div
            className="fixed inset-0 z-50 flex items-center justify-center p-6"
            style={{ background: "rgba(0,0,0,0.7)", backdropFilter: "blur(12px)" }}
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            exit={{ opacity: 0 }}
            onClick={() => setShowModal(false)}
          >
            <motion.div
              className="glass-card p-8 w-full max-w-lg"
              style={{ borderRadius: "28px", background: "rgba(15,15,25,0.9)", border: "1px solid rgba(255,255,255,0.12)" }}
              initial={{ scale: 0.9, y: 20 }}
              animate={{ scale: 1, y: 0 }}
              exit={{ scale: 0.9, y: 20 }}
              onClick={e => e.stopPropagation()}
            >
              {/* Header */}
              <div className="flex items-center justify-between mb-6">
                <h2 className="text-xl font-bold" style={{ color: "var(--text-primary)" }}>🌍 Санкт-Петербург</h2>
                <button
                  onClick={() => setShowModal(false)}
                  className="w-9 h-9 rounded-full flex items-center justify-center text-lg"
                  style={{ background: "rgba(255,255,255,0.08)", color: "var(--text-secondary)" }}
                >✕</button>
              </div>

              {/* Current */}
              <div className="flex items-center gap-5 mb-8">
                <span style={{ fontSize: "72px", lineHeight: 1 }}>{getWeatherEmoji(weather.weatherCode)}</span>
                <div>
                  <div className="font-black" style={{ fontSize: "64px", lineHeight: 1, color: "var(--text-primary)" }}>
                    {weather.temp}°
                  </div>
                  <div className="text-lg" style={{ color: "var(--text-secondary)" }}>{weather.desc}</div>
                  <div className="flex gap-4 mt-2 text-sm" style={{ color: "var(--text-secondary)" }}>
                    {weather.feelsLike && weather.feelsLike !== "—" && <span>Ощущается {weather.feelsLike}°</span>}
                    {weather.humidity && weather.humidity !== "—" && <span>💧 {weather.humidity}%</span>}
                    {weather.windSpeed && weather.windSpeed !== "—" && <span>💨 {weather.windSpeed} км/ч</span>}
                  </div>
                </div>
              </div>

              {/* Forecast */}
              {weather.forecast && weather.forecast.length > 0 && (
                <div>
                  <div className="text-xs font-semibold uppercase tracking-widest mb-3" style={{ color: "var(--text-secondary)" }}>
                    Прогноз
                  </div>
                  <div className="grid gap-2">
                    {weather.forecast.map((day: any, i: number) => (
                      <div key={i} className="flex items-center justify-between px-4 py-3 rounded-2xl"
                        style={{ background: "rgba(255,255,255,0.04)", border: "1px solid rgba(255,255,255,0.06)" }}>
                        <span className="text-sm font-semibold w-16" style={{ color: "var(--text-primary)" }}>
                          {getDayName(day.date)}
                        </span>
                        <span className="text-2xl">{getWeatherEmoji(day.weatherCode)}</span>
                        <span className="text-sm" style={{ color: "var(--text-secondary)" }}>{day.desc}</span>
                        <span className="text-sm font-semibold" style={{ color: "var(--text-primary)" }}>
                          {day.maxTemp}° / <span style={{ color: "var(--text-secondary)" }}>{day.minTemp}°</span>
                        </span>
                      </div>
                    ))}
                  </div>
                </div>
              )}
            </motion.div>
          </motion.div>
        )}
      </AnimatePresence>
    </>
  );
}