import Link from "next/link";
import { notFound, redirect } from "next/navigation";
import { Query } from "node-appwrite";

import { Badge } from "@/components/ui/badge";
import { DueBadge } from "@/components/due-badge";
import { Button } from "@/components/ui/button";
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { listJobFiles } from "@/lib/appwrite/job-file-queries";
import { listJobHistory } from "@/lib/appwrite/job-history-queries";
import { getPatient } from "@/lib/appwrite/patient-queries";
import { toPlain } from "@/lib/appwrite/serialize";
import {
  JOB_LOCATION_LABELS,
  JOB_STATUS_LABELS,
  JOB_STEP_LABELS,
  JOB_STEP_ORDER,
  PROSTHETIC_TYPE_LABELS,
} from "@/lib/appwrite/job-types";
import { createAdminClient } from "@/lib/appwrite/server";
import { DATABASE_ID, TABLES, type Job, type TenantSettings } from "@/lib/appwrite/schema";
import { requireTenant } from "@/lib/appwrite/tenant-guard";
import { JobActionsPanel } from "./components/job-actions-panel";
import { JobFilesPanel } from "./components/job-files-panel";

export const metadata = {
  title: "DLS — İş Detay",
};

const dateFormatter = new Intl.DateTimeFormat("tr-TR", {
  day: "2-digit",
  month: "2-digit",
  year: "numeric",
  hour: "2-digit",
  minute: "2-digit",
});

function formatMoney(amount: number, currency: string) {
  try {
    return new Intl.NumberFormat("tr-TR", { style: "currency", currency }).format(amount);
  } catch {
    return `${amount.toFixed(2)} ${currency}`;
  }
}

export default async function JobDetailPage({
  params,
}: {
  params: Promise<{ jobId: string }>;
}) {
  const { jobId } = await params;

  let ctx;
  try {
    ctx = await requireTenant();
  } catch {
    redirect("/onboarding");
  }

  const { tablesDB } = createAdminClient();
  let job: Job;
  try {
    const row = await tablesDB.getRow(DATABASE_ID, TABLES.jobs, jobId);
    job = toPlain(row as unknown as Job);
  } catch {
    notFound();
  }

  if (job.clinicTenantId !== ctx.tenantId && job.labTenantId !== ctx.tenantId) {
    notFound();
  }

  const counterpartId =
    job.clinicTenantId === ctx.tenantId ? job.labTenantId : job.clinicTenantId;
  const counterpartLabel = job.clinicTenantId === ctx.tenantId ? "Laboratuvar" : "Klinik";

  const counterpartRes = await tablesDB.listRows({
    databaseId: DATABASE_ID,
    tableId: TABLES.tenantSettings,
    queries: [Query.equal("tenantId", counterpartId), Query.limit(1)],
  });
  const counterpart = counterpartRes.rows[0] as unknown as TenantSettings | undefined;

  const [history, files] = await Promise.all([
    listJobHistory(jobId),
    listJobFiles(jobId),
  ]);
  const currentStepIdx = job.currentStep ? JOB_STEP_ORDER.indexOf(job.currentStep) : -1;
  const side = job.clinicTenantId === ctx.tenantId ? "clinic" : "lab";

  // Patient record only resolves on the clinic side — labs see the code only.
  const patient =
    side === "clinic" && job.patientId
      ? await getPatient(job.patientId, ctx.tenantId)
      : null;

  return (
    <div className="flex-1 space-y-6 px-6">
      <div className="flex flex-wrap items-start justify-between gap-3">
        <div className="flex flex-col gap-1">
          <p className="text-muted-foreground text-sm">
            {counterpartLabel}: {counterpart?.companyName ?? "—"}
          </p>
          <h1 className="text-2xl font-bold tracking-tight">
            {(() => {
              const name = [patient?.firstName, patient?.lastName].filter(Boolean).join(" ");
              return name || `Hasta ${job.patientCode}`;
            })()}
          </h1>
          <p className="text-muted-foreground text-sm">
            {patient && (patient.firstName || patient.lastName) && (
              <>
                <span className="font-mono">{job.patientCode}</span> ·{" "}
              </>
            )}
            {PROSTHETIC_TYPE_LABELS[job.prostheticType]} · {job.memberCount} üye
          </p>
        </div>
        <div className="flex flex-col items-end gap-3">
          <div className="flex items-center gap-2">
            <DueBadge job={job} />
            <Badge variant="secondary" className="text-sm">
              {JOB_STATUS_LABELS[job.status]}
            </Badge>
          </div>
          <JobActionsPanel job={job} side={side} kind={ctx.kind} />
        </div>
      </div>

      <div className="grid gap-6 lg:grid-cols-3">
        <Card className="lg:col-span-2">
          <CardHeader>
            <CardTitle>İş Bilgileri</CardTitle>
            <CardDescription>{dateFormatter.format(new Date(job.$createdAt))}</CardDescription>
          </CardHeader>
          <CardContent className="grid gap-4 text-sm md:grid-cols-2">
            <Info label="Renk">{job.color || "—"}</Info>
            <Info label="Termin">
              {job.dueDate ? dateFormatter.format(new Date(job.dueDate)) : "—"}
            </Info>
            <Info label="Fiyat">
              {typeof job.price === "number"
                ? formatMoney(job.price, job.currency || "TRY")
                : <span className="text-muted-foreground">Lab tarafından belirlenecek</span>}
            </Info>
            <Info label="Mevcut Aşama">
              {job.currentStep ? JOB_STEP_LABELS[job.currentStep] : "—"}
            </Info>
            <Info label="Şu An">
              {job.status === "pending"
                ? "Klinikte (lab teslim alacak)"
                : job.status === "delivered"
                  ? "Hasta'ya teslim edildi"
                  : job.status === "cancelled"
                    ? "İptal"
                    : JOB_LOCATION_LABELS[job.location ?? "at_lab"]}
            </Info>
            <div className="md:col-span-2">
              <p className="text-muted-foreground mb-1 text-xs font-medium uppercase tracking-wide">
                Dişler ({job.teeth?.length ?? job.memberCount})
              </p>
              <p className="font-mono text-sm">
                {job.teeth && job.teeth.length > 0
                  ? job.teeth.join(", ")
                  : `${job.memberCount} üye (diş listesi yok)`}
              </p>
            </div>
            <div className="md:col-span-2">
              <p className="text-muted-foreground mb-1 text-xs font-medium uppercase tracking-wide">
                Açıklama
              </p>
              <p className="whitespace-pre-wrap text-sm">{job.description || "—"}</p>
            </div>
          </CardContent>
        </Card>

        <Card>
          <CardHeader>
            <CardTitle>Aşamalar</CardTitle>
            <CardDescription>Ölçü → Alt Yapı → Üst Yapı → Cila/Bitim</CardDescription>
          </CardHeader>
          <CardContent>
            <ol className="space-y-3">
              {JOB_STEP_ORDER.map((step, idx) => {
                const done = currentStepIdx > idx || job.status === "delivered";
                const active = currentStepIdx === idx && job.status !== "delivered";
                return (
                  <li key={step} className="flex items-center gap-3">
                    <span
                      className={
                        done
                          ? "bg-primary text-primary-foreground"
                          : active
                            ? "bg-primary/15 text-primary"
                            : "bg-muted text-muted-foreground"
                      }
                      style={{
                        display: "inline-flex",
                        alignItems: "center",
                        justifyContent: "center",
                        width: 28,
                        height: 28,
                        borderRadius: "50%",
                        fontSize: 12,
                        fontWeight: 600,
                      }}
                    >
                      {idx + 1}
                    </span>
                    <span className={active ? "font-medium" : ""}>{JOB_STEP_LABELS[step]}</span>
                  </li>
                );
              })}
            </ol>
            <p className="text-muted-foreground mt-4 text-xs">
              Aşama güncelleme ve dosya yükleme sonraki sürümde.
            </p>
          </CardContent>
        </Card>
      </div>

      {patient && (
        <Card>
          <CardHeader>
            <CardTitle>Hasta Bilgileri</CardTitle>
            <CardDescription>
              Bu alan yalnızca kliniğinize görünür — laboratuvar hasta kodu
              dışında bir veri görmez.
            </CardDescription>
          </CardHeader>
          <CardContent className="grid gap-4 text-sm md:grid-cols-2">
            <Info label="Ad Soyad">
              {[patient.firstName, patient.lastName].filter(Boolean).join(" ") || "—"}
            </Info>
            <Info label="Hasta Kodu">
              <span className="font-mono">{patient.patientCode}</span>
            </Info>
            {patient.notes && (
              <div className="md:col-span-2">
                <p className="text-muted-foreground mb-1 text-xs font-medium uppercase tracking-wide">
                  Notlar
                </p>
                <p className="whitespace-pre-wrap text-sm">{patient.notes}</p>
              </div>
            )}
          </CardContent>
        </Card>
      )}

      <Card>
        <CardHeader>
          <CardTitle>Taranan Dosyalar ve Görseller</CardTitle>
          <CardDescription>
            Hem klinik hem laboratuvar dosya yükleyip indirebilir.
          </CardDescription>
        </CardHeader>
        <CardContent>
          <JobFilesPanel jobId={job.$id} files={files} />
        </CardContent>
      </Card>

      <Card>
        <CardHeader>
          <CardTitle>Akış Geçmişi</CardTitle>
          <CardDescription>
            İşin aşama transition&apos;ları, kim yaptı ve hangi notla.
          </CardDescription>
        </CardHeader>
        <CardContent>
          {history.length === 0 ? (
            <p className="text-muted-foreground text-sm">
              Henüz aşama tamamlanmadı.
            </p>
          ) : (
            <ol className="relative space-y-4 border-l-2 border-border pl-6">
              {history.map((h) => {
                const isRevision = h.note?.startsWith("[Düzeltme talebi]");
                return (
                  <li key={h.$id} className="relative">
                    <span
                      className={`absolute -left-[1.85rem] mt-1.5 size-3 rounded-full ring-2 ring-background ${
                        isRevision ? "bg-rose-500" : "bg-emerald-500"
                      }`}
                      aria-hidden
                    />
                    <div className="flex flex-wrap items-baseline gap-2">
                      <span className="font-medium">
                        {JOB_STEP_LABELS[h.step]}
                      </span>
                      {isRevision && (
                        <span className="rounded bg-rose-100 px-1.5 py-0.5 text-xs font-medium text-rose-700 dark:bg-rose-950 dark:text-rose-300">
                          Düzeltme talebi
                        </span>
                      )}
                      <span className="text-muted-foreground text-xs tabular-nums">
                        {dateFormatter.format(new Date(h.completedAt))}
                      </span>
                    </div>
                    {h.note && (
                      <p className="text-muted-foreground mt-1 whitespace-pre-wrap text-sm">
                        {h.note.replace(/^\[Düzeltme talebi\]\s*/, "")}
                      </p>
                    )}
                  </li>
                );
              })}
            </ol>
          )}
        </CardContent>
      </Card>

      <div>
        <Button asChild variant="outline">
          <Link href={ctx.kind === "clinic" ? "/jobs/outbound" : "/jobs/inbound"}>
            ← Listeye dön
          </Link>
        </Button>
      </div>
    </div>
  );
}

function Info({ label, children }: { label: string; children: React.ReactNode }) {
  return (
    <div>
      <p className="text-muted-foreground text-xs font-medium uppercase tracking-wide">
        {label}
      </p>
      <p className="mt-0.5 text-sm">{children}</p>
    </div>
  );
}