import { auth } from "@/lib/auth";
import { prisma } from "@/lib/prisma";
import { mkdirSync } from "fs";
import path from "path";

export async function GET() {
  const session = await auth();
  if (!session) return new Response("Unauthorized", { status: 401 });

  const apps = await prisma.app.findMany({
    orderBy: { createdAt: "asc" },
    select: {
      id: true,
      name: true,
      slug: true,
      description: true,
      primaryColor: true,
      accentColor: true,
      darkBg: true,
      createdAt: true,
      _count: { select: { campaigns: true } },
    },
  });

  return Response.json(apps);
}

export async function POST(request: Request) {
  const session = await auth();
  if (!session) return new Response("Unauthorized", { status: 401 });

  const body = await request.json();
  const { name, slug, description, appUrl, primaryColor, accentColor, darkBg, brandIdentity, productInfo, platformGuidelines } = body;

  if (!name || !slug) {
    return Response.json({ error: "Name and slug are required" }, { status: 400 });
  }

  // Validate slug format
  if (!/^[a-z0-9-]+$/.test(slug)) {
    return Response.json({ error: "Slug must be lowercase alphanumeric with hyphens only" }, { status: 400 });
  }

  const existing = await prisma.app.findUnique({ where: { slug } });
  if (existing) {
    return Response.json({ error: "An app with this slug already exists" }, { status: 409 });
  }

  const app = await prisma.app.create({
    data: {
      name,
      slug,
      description: description || null,
      appUrl: appUrl || null,
      primaryColor: primaryColor || "#0079FF",
      accentColor: accentColor || "#FF9400",
      darkBg: darkBg || "#1a1a2e",
      brandIdentity: brandIdentity || null,
      productInfo: productInfo || null,
      platformGuidelines: platformGuidelines || null,
    },
  });

  // Create filesystem structure
  const pipelineRoot = process.env.PIPELINE_ROOT || path.join(process.cwd(), "pipeline");
  mkdirSync(path.join(pipelineRoot, "apps", slug, "screenshots"), { recursive: true });

  return Response.json(app, { status: 201 });
}