import { NextRequest, NextResponse } from 'next/server';
import prisma from '@/lib/prisma';
import { getCurrentUser } from '@/lib/auth';
import type { SummarizeRecordingResponse, SummarizeRecordingError400, SummarizeRecordingError404 } from '@/types/api-types';

export async function POST(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const user = await getCurrentUser();
    if (!user) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
    }

    const { id } = await params;

    const recording = await prisma.recording.findUnique({
      where: { id },
      select: { userId: true, transcript: true }
    });

    if (!recording) {
      const error: SummarizeRecordingError404 = { error: 'Recording not found' };
      return NextResponse.json(error, { status: 404 });
    }

    // Check ownership
    if (recording.userId !== user.id) {
      return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
    }

    // Check if transcript exists
    if (!recording.transcript) {
      const error: SummarizeRecordingError400 = { error: 'Transcript not available' };
      return NextResponse.json(error, { status: 400 });
    }

    // TODO: Call Gemini API to generate summary
    // For now, we'll create a placeholder summary
    const summary = `Summary of the recording (placeholder)`;

    // Update recording with summary
    await prisma.recording.update({
      where: { id },
      data: { summary }
    });

    const response: SummarizeRecordingResponse = {
      recordingId: id,
      summary,
    };

    return NextResponse.json(response, { status: 200 });
  } catch (error) {
    console.error('Summarize recording error:', error);
    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
  }
}