import { NextRequest, NextResponse } from "next/server"
import { prisma } from "@/lib/db"

export async function POST(request: NextRequest) {
  try {
    const { childId, exerciseId, skillCode, correct, promptLevel, responseMs, errorType, stage } = await request.json()

    if (!childId || !exerciseId || !skillCode) {
      return NextResponse.json({ error: "Missing required fields" }, { status: 400 })
    }

    const sessionLog = await prisma.sessionLog.findFirst({
      where: { childId },
      orderBy: { startedAt: "desc" },
    })

    if (!sessionLog) {
      return NextResponse.json({ error: "No active session" }, { status: 400 })
    }

    await prisma.skillAttempt.create({
      data: {
        sessionLogId: sessionLog.id,
        skillCode,
        promptLevel: promptLevel ?? 0,
        correct,
        responseMs: responseMs ?? null,
        errorType: errorType ?? null,
        exerciseId,
        stage: stage ?? null,
      },
    })

    return NextResponse.json({ success: true })
  } catch (error) {
    console.error("Curriculum grade error:", error)
    return NextResponse.json({ error: "Internal error" }, { status: 500 })
  }
}