import { prisma } from "@streamclipper/db";
import { deleteRawSegment, deleteCandidateSegment, retryRender, cancelRender } from "../actions";
import { formatTr } from "../../lib/formatDate";
import { ConfirmButton } from "../components/ConfirmButton";
import { Button } from "@/components/ui/button";
import { Badge, type badgeVariants } from "@/components/ui/badge";
import { Card, CardContent, CardHeader } from "@/components/ui/card";
import type { VariantProps } from "class-variance-authority";

export const dynamic = "force-dynamic";

const STATUS_BADGE: Record<string, VariantProps<typeof badgeVariants>["variant"]> = {
  PENDING: "muted",
  PROCESSED: "ok",
  DISCARDED: "err",
  PENDING_STT: "warn",
  TRANSCRIBED: "ok",
  RENDERING: "warn",
  READY: "ok",
  FAILED: "err",
};

function transcriptPreview(transcriptJson: unknown): string | null {
  if (!transcriptJson || typeof transcriptJson !== "object") return null;
  const text = (transcriptJson as { text?: string }).text;
  return text ? text.slice(0, 240) : null;
}

export default async function SegmentsPage() {
  const segments = await prisma.rawSegment.findMany({
    orderBy: { createdAt: "desc" },
    take: 50,
    include: { candidates: { orderBy: { createdAt: "desc" }, include: { short: true } } },
  });

  return (
    <div className="flex flex-col gap-6">
      <h1 className="text-2xl font-semibold tracking-tight">Segment & Aday Klip Kütüphanesi</h1>

      {segments.length === 0 ? (
        <p className="text-sm text-muted-foreground">Henüz işlenmiş segment yok.</p>
      ) : (
        <div className="flex flex-col gap-4">
          {segments.map((segment) => (
            <Card key={segment.id}>
              <CardHeader className="flex-row items-center justify-between">
                <div>
                  <span className="font-mono-num text-xs text-muted-foreground">{segment.filePath}</span>
                  <p className="font-mono-num text-xs text-muted-foreground">
                    {segment.duration}sn · {formatTr(segment.startedAt)}
                  </p>
                </div>
                <Badge variant={STATUS_BADGE[segment.status] ?? "muted"}>{segment.status}</Badge>
              </CardHeader>
              <CardContent className="flex flex-col gap-3">
                <video controls preload="metadata" className="w-full max-w-md rounded-md border border-border">
                  <source src={`/api/segments/${segment.id}/video`} type="video/mp4" />
                </video>

                <div className="flex items-center gap-2">
                  <Button asChild variant="outline" size="sm">
                    <a href={`/api/segments/${segment.id}/video?download=1`}>İndir</a>
                  </Button>
                  <form action={deleteRawSegment.bind(null, segment.id)}>
                    <ConfirmButton
                      confirmText="Bu segmenti ve içindeki tüm aday klipleri silmek istediğine emin misin? Geri alınamaz."
                      label="Sil"
                    />
                  </form>
                </div>

                {segment.candidates.length === 0 ? (
                  <p className="text-sm text-muted-foreground">Bu segmentte aday klip bulunamadı.</p>
                ) : (
                  segment.candidates.map((c) => (
                    <div key={c.id} className="border-l-2 border-border pl-4">
                      <div className="flex items-center justify-between gap-2">
                        <span className="font-mono-num text-xs text-muted-foreground">
                          {c.startSec}s – {c.endSec}s
                          {c.audioPeakScore != null && ` · peak ${c.audioPeakScore.toFixed(1)}dB`}
                          {c.chatVelocityScore != null && " · chat spike"}
                        </span>
                        <Badge variant={STATUS_BADGE[c.status] ?? "muted"}>{c.status}</Badge>
                      </div>
                      {transcriptPreview(c.transcriptJson) && (
                        <p className="mt-1.5 text-sm leading-relaxed">{transcriptPreview(c.transcriptJson)}</p>
                      )}

                      {c.short && (
                        <div className="mt-2 flex flex-col items-start gap-2">
                          <Badge variant={STATUS_BADGE[c.short.status] ?? "muted"}>9:16: {c.short.status}</Badge>
                          {c.short.status === "READY" && c.short.filePath && (
                            <>
                              <video controls preload="metadata" className="w-[220px] rounded-md border border-border">
                                <source src={`/api/shorts/${c.short.id}/video`} type="video/mp4" />
                              </video>
                              <Button asChild variant="outline" size="sm">
                                <a href={`/api/shorts/${c.short.id}/video?download=1`}>İndir</a>
                              </Button>
                            </>
                          )}
                          {c.short.status === "READY" && !c.short.filePath && (
                            <p className="text-xs text-muted-foreground">
                              ✅ Telegram&apos;a gönderildi, sunucuda saklanmıyor.
                            </p>
                          )}
                          {c.short.status === "FAILED" && (
                            <>
                              {c.short.errorMessage && (
                                <p className="font-mono-num text-xs text-muted-foreground">{c.short.errorMessage}</p>
                              )}
                              <form action={retryRender.bind(null, c.id)}>
                                <Button type="submit" size="sm">
                                  Tekrar Dene
                                </Button>
                              </form>
                            </>
                          )}
                          {c.short.status === "RENDERING" && (
                            <form action={cancelRender.bind(null, c.id)}>
                              <ConfirmButton
                                confirmText="Render'ı başarısız say ve kilidi aç? (Çalışan process'i öldürmez, sadece durumu sıfırlar)"
                                label="Takıldıysa İptal Et"
                                variant="outline"
                              />
                            </form>
                          )}
                        </div>
                      )}
                      {!c.short && c.status === "TRANSCRIBED" && (
                        <form action={retryRender.bind(null, c.id)} className="mt-2">
                          <Button type="submit" size="sm">
                            9:16 Render Et
                          </Button>
                        </form>
                      )}

                      <form action={deleteCandidateSegment.bind(null, c.id)} className="mt-2">
                        <ConfirmButton confirmText="Bu aday klibi silmek istediğine emin misin?" label="Sil" />
                      </form>
                    </div>
                  ))
                )}
              </CardContent>
            </Card>
          ))}
        </div>
      )}
    </div>
  );
}