/**
 * TripItineraryCard — Sasquatch's day-by-day skate trip plan.
 * ─────────────────────────────────────────────────────────────────────────────
 * Renders a structured itinerary (not a wall of text): weather header, days
 * with spots/events/coaches, local crews, and honest actions —
 *   • Save all spots to a Collection (Nostr-native, logged-in only)
 *   • Book / message a coach (links to their profile → zap/DM there)
 *   • Deep-link out to flights/stays (we assist, we don't book)
 */

import { useState } from 'react';
import { Loader2, Check, MapPin, Calendar, GraduationCap, Users, CloudRain, Bookmark, Plane } from 'lucide-react';
import type { Itinerary } from '@/lib/tripPlanner';
import { travelLinks } from '@/lib/tripPlanner';
import { useCurrentUser } from '@/hooks/useCurrentUser';
import { useCreateSpotCollection } from '@/hooks/useSpotCollections';
import { useToast } from '@/hooks/useToast';
import { cn } from '@/lib/utils';

const KIND_ICON = {
  spot: MapPin,
  event: Calendar,
  coach: GraduationCap,
} as const;

export function TripItineraryCard({ itinerary }: { itinerary: Itinerary }) {
  const { user } = useCurrentUser();
  const { createCollection, isPending } = useCreateSpotCollection();
  const { toast } = useToast();
  const [saved, setSaved] = useState(false);

  const w = itinerary.weather;
  const rainy = (w?.precipitation_mm ?? 0) > 0.5 || (w?.skateability_score ?? 100) < 40;

  const handleSave = async () => {
    if (!user) {
      toast({ title: 'Log in to save', description: 'Sign in to keep this trip as a Collection.' });
      return;
    }
    try {
      await createCollection({
        title: `${itinerary.destination} skate trip 🛹`,
        description: `Trip plan by The Sasquatch — ${itinerary.days.length} days in ${itinerary.destination}.`,
        spotRefs: itinerary.allSpotRefs,
      });
      setSaved(true);
      toast({ title: 'Saved to Collections 🦧', description: `Your ${itinerary.destination} trip is bookmarked.` });
    } catch (err) {
      toast({
        title: "Couldn't save",
        description: err instanceof Error ? err.message : 'Try again in a sec.',
        variant: 'destructive',
      });
    }
  };

  return (
    <div
      className="mt-2 rounded-lg border border-[#ccff00]/25 overflow-hidden"
      style={{ background: 'linear-gradient(160deg, rgba(20,40,10,0.6), rgba(6,13,3,0.6))' }}
    >
      {/* Header */}
      <div className="px-2.5 py-2 border-b border-[#ccff00]/15">
        <div className="flex items-center gap-1.5">
          <span className="text-[13px]">🛹</span>
          <span className="font-black text-[11px] text-[#ccff00] uppercase tracking-wider truncate">
            {itinerary.days.length} days in {itinerary.destination}
          </span>
        </div>
        {w && (
          <div className="mt-1 flex items-center gap-1.5 text-[9px] text-gray-300">
            <span>{w.weatherIcon} {w.condition}</span>
            {typeof w.temperature_c === 'number' && <span>· {Math.round(w.temperature_c)}°C</span>}
            {w.skateability_label && (
              <span className={cn('px-1 rounded font-bold',
                (w.skateability_score ?? 0) >= 60 ? 'bg-[#ccff00]/15 text-[#ccff00]' : 'bg-orange-500/15 text-orange-300')}>
                {w.skateability_label}
              </span>
            )}
          </div>
        )}
        {rainy && (
          <div className="mt-1 flex items-start gap-1 text-[9px] text-orange-300/90">
            <CloudRain className="h-2.5 w-2.5 mt-0.5 flex-shrink-0" />
            <span>Wet forecast — hit a local crew for covered/indoor options.</span>
          </div>
        )}
      </div>

      {/* Days */}
      <div className="divide-y divide-white/5">
        {itinerary.days.map((day) => (
          <div key={day.dayNumber} className="px-2.5 py-2">
            <div className="text-[9px] font-black text-[#ccff00]/70 uppercase tracking-widest mb-1">
              📅 {day.label}
            </div>
            {day.stops.length === 0 ? (
              <div className="text-[9px] text-gray-500 italic">Free skate — explore & film. 🎥</div>
            ) : (
              <div className="space-y-1">
                {day.stops.map((stop, i) => {
                  const Icon = KIND_ICON[stop.kind];
                  const inner = (
                    <div className="flex items-start gap-1.5">
                      <Icon className="h-2.5 w-2.5 mt-0.5 flex-shrink-0 text-[#ccff00]/70" />
                      <div className="min-w-0">
                        <div className="text-[10px] text-gray-100 truncate">{stop.title}</div>
                        {stop.subtitle && (
                          <div className="text-[8px] text-gray-500 truncate">{stop.subtitle}</div>
                        )}
                        {stop.kind === 'coach' && (
                          <div className="text-[8px] text-[#ccff00]/70">tap to book / zap ⚡</div>
                        )}
                      </div>
                    </div>
                  );
                  return stop.url ? (
                    <a
                      key={i}
                      href={stop.url}
                      target="_blank"
                      rel="noopener noreferrer"
                      className="block rounded px-1.5 py-1 hover:bg-[#ccff00]/5 transition-colors"
                    >
                      {inner}
                    </a>
                  ) : (
                    <div key={i} className="px-1.5 py-1">{inner}</div>
                  );
                })}
              </div>
            )}
          </div>
        ))}
      </div>

      {/* Local crews */}
      {itinerary.crews.length > 0 && (
        <div className="px-2.5 py-2 border-t border-white/5">
          <div className="text-[9px] font-black text-[#ccff00]/70 uppercase tracking-widest mb-1 flex items-center gap-1">
            <Users className="h-2.5 w-2.5" /> Local crews
          </div>
          <div className="flex flex-wrap gap-1">
            {itinerary.crews.map((c, i) => (
              <a
                key={i}
                href={c.url}
                target="_blank"
                rel="noopener noreferrer"
                className="text-[9px] px-1.5 py-0.5 rounded bg-white/5 text-gray-200 hover:bg-[#ccff00]/10 hover:text-[#ccff00] transition-colors"
              >
                👥 {c.name}
              </a>
            ))}
          </div>
        </div>
      )}

      {/* Actions */}
      <div className="px-2.5 py-2 border-t border-[#ccff00]/15 space-y-1.5">
        {itinerary.allSpotRefs.length > 0 && (
          <button
            onClick={handleSave}
            disabled={isPending || saved}
            className={cn(
              'w-full flex items-center justify-center gap-1.5 rounded-md py-1.5 text-[10px] font-bold transition-colors',
              saved
                ? 'bg-[#ccff00]/20 text-[#ccff00] cursor-default'
                : 'bg-[#ccff00] text-black hover:bg-[#d4ff1a] disabled:opacity-50',
            )}
          >
            {isPending ? (
              <><Loader2 className="h-3 w-3 animate-spin" /> Saving…</>
            ) : saved ? (
              <><Check className="h-3 w-3" /> Saved to Collections</>
            ) : (
              <><Bookmark className="h-3 w-3" /> Save {itinerary.allSpotRefs.length} spots to a Collection</>
            )}
          </button>
        )}

        {/* External travel — assist, don't book */}
        <div className="flex gap-1">
          {travelLinks(itinerary.destination).map((link) => (
            <a
              key={link.label}
              href={link.url}
              target="_blank"
              rel="noopener noreferrer"
              className="flex-1 flex items-center justify-center gap-1 rounded-md border border-white/10 py-1 text-[9px] text-gray-300 hover:border-[#ccff00]/40 hover:text-[#ccff00] transition-colors"
            >
              <span>{link.emoji}</span>
              <span className="truncate">{link.label}</span>
            </a>
          ))}
        </div>
        <p className="text-[8px] text-gray-600 flex items-center gap-1 justify-center">
          <Plane className="h-2 w-2" /> I plan the skating — flights & stays open on the real sites (no KYC, no middleman).
        </p>
      </div>
    </div>
  );
}