import { createFileRoute, Link } from "@tanstack/react-router";
import { ChevronRight, RefreshCw } from "lucide-react";
import { cn } from "@/lib/utils";
import { formatData } from "@/lib/crapp-data";
import { PageHeader } from "@/components/crapp/ui-bits";
import { BarraSottosezioni } from "@/components/crapp/BarraSottosezioni";
import { useScoutMatches } from "@/lib/scout-store";
import { useCsi } from "@/lib/csi";
import { isNostraSquadra, matchDaPartitaCsi, partiteGiocate } from "@/lib/csi-core";
import { useVotiMvp, vincitoriMvp } from "@/lib/mvp-voti";
import { useEventi } from "@/lib/eventi";

export const Route = createFileRoute("/classifica")({
  head: () => ({
    meta: [
      { title: "Classifica campionato — CrAPP" },
      {
        name: "description",
        content: "Classifica e risultati del girone CSI seguiti in tempo reale dal CRAP Volley.",
      },
      { property: "og:title", content: "Classifica campionato — CrAPP" },
      { property: "og:description", content: "Posizioni, set e risultati aggiornati del girone." },
    ],
  }),
  component: Classifica,
});

function formatAggiornamento(iso: string) {
  const d = new Date(iso);
  const oggi = new Date().toDateString() === d.toDateString();
  const ora = d.toLocaleTimeString("it-IT", { hour: "2-digit", minute: "2-digit" });
  return oggi ? `oggi alle ${ora}` : `il ${d.toLocaleDateString("it-IT")} alle ${ora}`;
}

function Classifica() {
  const scoutMatches = useScoutMatches();
  const { data: csi } = useCsi();
  const votiMvp = useVotiMvp();
  const mvpPerMatch = vincitoriMvp(votiMvp.data ?? []);
  const { eventi } = useEventi();

  const classifica = csi?.classifica ?? [];
  const csiGiocate = csi ? partiteGiocate(csi.partite) : [];
  const eventoIdPerData = new Map(
    eventi.filter((e) => e.tipo === "partita").map((e) => [e.data, e.id]),
  );
  const tuttiMatch = csiGiocate.length
    ? csiGiocate.map((p) => ({
        ...matchDaPartitaCsi(p),
        mvp: mvpPerMatch[p.id] ?? "",
        scout: false,
      }))
    : scoutMatches.map((m) => ({
        id: m.id,
        data: m.data,
        avversario: m.avversario,
        casa: m.casa,
        setNostri: m.setNostri,
        setLoro: m.setLoro,
        parziali: m.parziali,
        mvp: mvpPerMatch[m.id] ?? "",
        scout: true,
      }));

  return (
    <>
      <PageHeader
        titolo="Campionato"
        sottotitolo={csi ? `${csi.girone} · CSI Bologna` : "CSI Bologna"}
      />

      <BarraSottosezioni
        defaultId="classifica"
        voci={[
          {
            id: "classifica",
            label: "Classifica",
            contenuto: (
              <>
                <div className="mb-3 flex items-center gap-2 rounded-2xl bg-secondary px-3 py-2 text-xs text-muted-foreground">
                  <RefreshCw className="h-3.5 w-3.5 text-accent" />
                  {csi
                    ? `Dati CSI aggiornati ${formatAggiornamento(csi.aggiornato)}`
                    : "Dati CSI in arrivo"}
                </div>
                <div className="overflow-hidden rounded-3xl bg-card shadow-card">
                  <div className="grid grid-cols-[2rem_minmax(0,1fr)_2rem_2.5rem_2.5rem] gap-2 border-b border-border px-3 py-2 text-xs font-bold uppercase text-muted-foreground">
                    <span>#</span>
                    <span>Squadra</span>
                    <span className="text-center">G</span>
                    <span className="text-center">Set</span>
                    <span className="text-center">Pt</span>
                  </div>
                  {classifica.length === 0 ? (
                    <p className="px-3 py-4 text-center text-xs text-muted-foreground">
                      Classifica non ancora disponibile.
                    </p>
                  ) : (
                    classifica.map((r) => {
                      const noi = isNostraSquadra(r.squadra) || r.squadra === "CRAP Volley";
                      return (
                        <div
                          key={r.pos}
                          className={cn(
                            "grid grid-cols-[2rem_minmax(0,1fr)_2rem_2.5rem_2.5rem] items-center gap-2 border-b border-border px-3 py-2.5 text-sm last:border-0",
                            noi && "bg-accent/10",
                          )}
                        >
                          <span className={cn("font-display text-base", noi && "text-accent")}>
                            {r.pos}
                          </span>
                          <span className={cn("truncate", noi ? "font-bold" : "font-medium")}>
                            {r.squadra}
                          </span>
                          <span className="text-center text-xs text-muted-foreground">
                            {r.giocate}
                          </span>
                          <span className="text-center text-xs tabular-nums text-muted-foreground">
                            {r.setFatti}:{r.setSubiti}
                          </span>
                          <span className="text-center font-bold tabular-nums">{r.punti}</span>
                        </div>
                      );
                    })
                  )}
                </div>
              </>
            ),
          },
          {
            id: "storico",
            label: "Storico partite",
            contenuto:
              tuttiMatch.length === 0 ? (
                <p className="rounded-3xl bg-card p-4 text-center text-xs text-muted-foreground shadow-card">
                  Nessuna partita disponibile.
                </p>
              ) : (
                <div className="space-y-3">
                  {tuttiMatch.map((m) => {
                    const vinta = m.setNostri > m.setLoro;
                    const eventoId = eventoIdPerData.get(m.data);
                    const contenuto = (
                      <>
                        <div className="grid grid-cols-[minmax(0,1fr)_auto] items-center gap-3">
                          <div className="min-w-0">
                            <p className="truncate text-sm font-bold">
                              {m.casa ? "CRAP Volley" : m.avversario} vs{" "}
                              {m.casa ? m.avversario : "CRAP Volley"}
                            </p>
                            <p className="text-xs text-muted-foreground">
                              {formatData(m.data)} · MVP {m.mvp || "da votare"}
                              {m.scout ? " · scoutata" : ""}
                            </p>
                          </div>
                          <span
                            className={cn(
                              "rounded-xl px-2.5 py-1 font-display text-lg",
                              vinta
                                ? "bg-success text-success-foreground"
                                : "bg-destructive text-destructive-foreground",
                            )}
                          >
                            {m.setNostri}-{m.setLoro}
                          </span>
                        </div>
                        <div className="mt-3 flex flex-wrap items-center gap-1.5">
                          {m.parziali.map((p, i) => (
                            <span
                              key={i}
                              className={cn(
                                "rounded-lg px-2 py-1 text-xs font-semibold tabular-nums",
                                p[0] > p[1] ? "bg-secondary" : "bg-muted text-muted-foreground",
                              )}
                            >
                              {p[0]}-{p[1]}
                            </span>
                          ))}
                          {eventoId && !m.mvp ? (
                            <span className="ml-auto inline-flex items-center gap-0.5 text-xs font-bold uppercase text-accent">
                              Vota MVP <ChevronRight className="h-3.5 w-3.5" />
                            </span>
                          ) : null}
                        </div>
                      </>
                    );
                    return eventoId ? (
                      <Link
                        key={m.id}
                        to="/partita/$id"
                        params={{ id: eventoId }}
                        className="premi block rounded-3xl bg-card p-4 shadow-card active:scale-[0.99]"
                      >
                        {contenuto}
                      </Link>
                    ) : (
                      <article key={m.id} className="rounded-3xl bg-card p-4 shadow-card">
                        {contenuto}
                      </article>
                    );
                  })}
                </div>
              ),
          },
        ]}
      />
    </>
  );
}