import { notFound } from "next/navigation";
import Link from "next/link";
import { db } from "@/lib/db";
import { auth } from "@/auth";
import { Badge } from "@/components/ui/badge";
import { ProjectTabsClient } from "./ProjectTabsClient";
import {
  Film,
  Layers,
  CheckCircle2,
  ListTodo,
} from "lucide-react";

export async function generateMetadata({ params }: { params: Promise<{ id: string }> }) {
  const { id } = await params;
  const project = await db.project.findUnique({ where: { id }, select: { name: true } });
  return { title: project?.name ?? "Project" };
}

async function getProject(id: string) {
  return db.project.findUnique({
    where: { id },
    include: {
      client: true,
      producer: { select: { id: true, name: true, image: true, email: true } },
      supervisor: { select: { id: true, name: true, image: true, email: true } },
      shots: {
        orderBy: { createdAt: "asc" },
        include: {
          artist: { select: { id: true, name: true, image: true, email: true } },
          versions: {
            take: 1,
            orderBy: { versionNumber: "desc" },
            include: {
              comments: { select: { id: true, isResolved: true } },
            },
          },
        },
      },
      assets: {
        orderBy: { assetCode: "asc" },
        include: {
          lead: { select: { id: true, name: true, email: true, image: true } },
          _count: { select: { tasks: true } },
          tasks: {
            orderBy: { sortOrder: "asc" },
            include: {
              assignedArtist: { select: { id: true, name: true, email: true, image: true } },
              _count: { select: { versions: true } },
              versions: {
                take: 1,
                orderBy: { versionNumber: "desc" },
                select: { id: true, versionNumber: true, approvalStatus: true, createdAt: true },
              },
            },
          },
        },
      },
      tasks: {
        orderBy: [{ status: "asc" }, { sortOrder: "asc" }],
        include: {
          shot: { select: { id: true, shotCode: true } },
          asset: { select: { id: true, assetCode: true, name: true } },
          assignedArtist: { select: { id: true, name: true, email: true, image: true } },
          _count: { select: { versions: true } },
          versions: {
            take: 1,
            orderBy: { versionNumber: "desc" },
            select: { id: true, versionNumber: true, approvalStatus: true, createdAt: true },
          },
        },
      },
    },
  });
}

async function getProjectArtists() {
  return db.user.findMany({
    where: { isActive: true },
    select: { id: true, name: true, email: true },
    orderBy: { name: "asc" },
  });
}

async function getClients() {
  return db.client.findMany({
    where: { isActive: true },
    select: { id: true, company: true },
    orderBy: { company: "asc" },
  });
}

async function getTeamMembers() {
  return db.user.findMany({
    where: { isActive: true, role: { in: ["ADMIN", "PRODUCER", "SUPERVISOR"] } },
    select: { id: true, name: true, email: true, role: true },
    orderBy: { name: "asc" },
  });
}

export default async function ProjectPage({ params }: { params: Promise<{ id: string }> }) {
  const { id } = await params;
  const session = await auth();
  const [project, artists, clients, teamMembers] = await Promise.all([
    getProject(id),
    getProjectArtists(),
    getClients(),
    getTeamMembers(),
  ]);
  if (!project) notFound();

  const canManage = session?.user && ["ADMIN", "PRODUCER", "SUPERVISOR"].includes(session.user.role);

  const totalShots = project.shots.length;
  const approvedShots = project.shots.filter((s) => s.status === "COMPLETE").length;
  const totalTasks = project.tasks.length;
  const doneTasks = project.tasks.filter((t) => t.status === "DONE").length;

  return (
    <div className="p-8 space-y-6 max-w-[1600px] mx-auto">
      {/* Breadcrumb */}
      <div className="flex items-center gap-2 text-sm text-zinc-500">
        <Link href="/projects" className="hover:text-white transition-colors">
          Projects
        </Link>
        <span>/</span>
        <span className="text-white">{project.name}</span>
      </div>

      {/* Header */}
      <div className="flex items-start justify-between gap-4">
        <div>
          <div className="flex items-center gap-3 mb-1">
            <span className="font-mono text-sm text-muted-foreground">{project.code}</span>
            {project.client && (
              <span className="text-sm text-muted-foreground">• {project.client.company}</span>
            )}
            <Badge
              className={
                project.status === "ACTIVE"
                  ? "bg-emerald-500/10 text-emerald-400 border-emerald-500/20"
                  : "bg-zinc-500/10 text-zinc-400"
              }
            >
              {project.status.replace("_", " ")}
            </Badge>
          </div>
          <h1 className="text-3xl font-bold text-white">{project.name}</h1>
          {project.description && (
            <p className="text-zinc-400 mt-1">{project.description}</p>
          )}
        </div>
      </div>

      {/* Stats row */}
      <div className="grid grid-cols-4 gap-3 max-w-md">
        <div className="flex flex-col items-center rounded-xl border border-zinc-800 bg-zinc-900 py-3">
          <Layers className="h-4 w-4 text-zinc-400 mb-1" />
          <span className="text-xl font-bold text-white">{totalShots}</span>
          <span className="text-xs text-zinc-400">shots</span>
        </div>
        <div className="flex flex-col items-center rounded-xl border border-zinc-800 bg-zinc-900 py-3">
          <CheckCircle2 className="h-4 w-4 text-green-400 mb-1" />
          <span className="text-xl font-bold text-white">{approvedShots}</span>
          <span className="text-xs text-zinc-400">approved</span>
        </div>
        <div className="flex flex-col items-center rounded-xl border border-zinc-800 bg-zinc-900 py-3">
          <ListTodo className="h-4 w-4 text-amber-400 mb-1" />
          <span className="text-xl font-bold text-white">{totalTasks}</span>
          <span className="text-xs text-zinc-400">tasks</span>
        </div>
        <div className="flex flex-col items-center rounded-xl border border-zinc-800 bg-zinc-900 py-3">
          <Film className="h-4 w-4 text-blue-400 mb-1" />
          <span className="text-xl font-bold text-white">{doneTasks}</span>
          <span className="text-xs text-zinc-400">done</span>
        </div>
      </div>

      {/* Tabs */}
      <ProjectTabsClient
        projectId={id}
        projectType={project.projectType}
        projectSettings={{
          id: project.id,
          name: project.name,
          code: project.code,
          showId: project.showId,
          projectType: project.projectType,
          description: project.description,
          status: project.status,
          clientId: project.clientId,
          producerId: project.producerId,
          supervisorId: project.supervisorId,
          dueDate: project.dueDate,
          startDate: project.startDate,
          slackWebhook: project.slackWebhook,
          slackChannel: project.slackChannel,
        }}
        clients={clients}
        teamMembers={teamMembers}
        shots={project.shots as any}
        assets={project.assets as any}
        tasks={project.tasks as any}
        artists={artists}
        canManage={!!canManage}
      />
    </div>
  );
}