import { NextRequest, NextResponse } from 'next/server';

export const dynamic = 'force-dynamic';

const API_BASE_URL = process.env.NEXT_PUBLIC_BACKEND_API_URL || 'http://localhost:5104';

// GET /api/work-items/[id] - Get a single work item
export async function GET(
  request: NextRequest,
  { params }: { params: { id: string } }
) {
  try {
    const id = parseInt(params.id);
    if (isNaN(id)) {
      return NextResponse.json(
        { error: 'Invalid ID format' },
        { status: 400 }
      );
    }

    const response = await fetch(`${API_BASE_URL}/api/WorkItem/${id}`, {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
      },
    });

    if (!response.ok) {
      if (response.status === 404) {
        return NextResponse.json(
          { error: 'Work item not found' },
          { status: 404 }
        );
      }
      throw new Error(`Backend API error: ${response.status}`);
    }

    const data = await response.json();
    return NextResponse.json(data);
  } catch (error) {
    console.error('Error fetching work item:', error);
    return NextResponse.json(
      { error: 'Failed to fetch work item' },
      { status: 500 }
    );
  }
}

// PUT /api/work-items/[id] - Update a work item
export async function PUT(
  request: NextRequest,
  { params }: { params: { id: string } }
) {
  try {
    const id = parseInt(params.id);
    if (isNaN(id)) {
      return NextResponse.json(
        { error: 'Invalid ID format' },
        { status: 400 }
      );
    }

    const body = await request.json();
    
    const response = await fetch(`${API_BASE_URL}/api/WorkItem/${id}`, {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(body),
    });

    if (!response.ok) {
      throw new Error(`Backend API error: ${response.status}`);
    }

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

// DELETE /api/work-items/[id] - Delete a work item
export async function DELETE(
  request: NextRequest,
  { params }: { params: { id: string } }
) {
  try {
    const id = parseInt(params.id);
    if (isNaN(id)) {
      return NextResponse.json(
        { error: 'Invalid ID format' },
        { status: 400 }
      );
    }

    const response = await fetch(`${API_BASE_URL}/api/WorkItem/${id}`, {
      method: 'DELETE',
      headers: {
        'Content-Type': 'application/json',
      },
    });

    if (!response.ok) {
      throw new Error(`Backend API error: ${response.status}`);
    }

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