import { NextResponse } from "next/server";
import { getCollection } from "@/lib/mongodb";
import { ObjectId } from "mongodb";

// GET - Fetch single poster
export async function GET(
  request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id } = await params;
    const collection = await getCollection("posters");

    const poster = await collection.findOne({ _id: new ObjectId(id) });

    if (!poster) {
      return NextResponse.json(
        { error: "Poster not found" },
        { status: 404 }
      );
    }

    return NextResponse.json({
      ...poster,
      _id: poster._id.toString(),
    });
  } catch (error) {
    console.error("Error fetching poster:", error);
    return NextResponse.json(
      { error: "Failed to fetch poster" },
      { status: 500 }
    );
  }
}

// PATCH - Update poster
export async function PATCH(
  request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id } = await params;
    const body = await request.json();
    const collection = await getCollection("posters");

    const updateData: any = {
      updatedAt: new Date(),
    };

    if (body.title !== undefined) updateData.title = body.title;
    if (body.description !== undefined) updateData.description = body.description;
    if (body.image !== undefined) updateData.image = body.image;
    if (body.link !== undefined) updateData.link = body.link;
    if (body.position !== undefined) updateData.position = body.position;
    if (body.active !== undefined) updateData.active = body.active;
    if (body.order !== undefined) updateData.order = body.order;
    if (body.startDate !== undefined) updateData.startDate = new Date(body.startDate);
    if (body.endDate !== undefined) updateData.endDate = new Date(body.endDate);

    const result = await collection.updateOne(
      { _id: new ObjectId(id) },
      { $set: updateData }
    );

    if (result.matchedCount === 0) {
      return NextResponse.json(
        { error: "Poster not found" },
        { status: 404 }
      );
    }

    return NextResponse.json({ success: true });
  } catch (error) {
    console.error("Error updating poster:", error);
    return NextResponse.json(
      { error: "Failed to update poster" },
      { status: 500 }
    );
  }
}

// DELETE - Delete poster
export async function DELETE(
  request: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id } = await params;
    const collection = await getCollection("posters");

    const result = await collection.deleteOne({ _id: new ObjectId(id) });

    if (result.deletedCount === 0) {
      return NextResponse.json(
        { error: "Poster not found" },
        { status: 404 }
      );
    }

    return NextResponse.json({ success: true });
  } catch (error) {
    console.error("Error deleting poster:", error);
    return NextResponse.json(
      { error: "Failed to delete poster" },
      { status: 500 }
    );
  }
}