Stop_smoking_website_ver2/src/app/api/preferences/route.ts

import { NextRequest, NextResponse } from 'next/server';
import { prisma } from '@/lib/prisma';
import { getSession } from '@/lib/session';

export async function GET() {
  try {
    const session = await getSession();
    if (!session?.user) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
    }

    const preferences = await prisma.userPreferences.findUnique({
      where: { userId: session.user.id },
    });

    if (!preferences) {
      return NextResponse.json({
        substance: 'nicotine',
        trackingStartDate: null,
        hasCompletedSetup: false,
        dailyGoal: null,
        quitPlan: null,
        userName: null,
        userAge: null,
      });
    }

    return NextResponse.json({
      substance: preferences.substance,
      trackingStartDate: preferences.trackingStartDate,
      hasCompletedSetup: preferences.hasCompletedSetup,
      dailyGoal: preferences.dailyGoal,
      quitPlan: preferences.quitPlanJson ? JSON.parse(preferences.quitPlanJson) : null,
      userName: preferences.userName,
      userAge: preferences.userAge,
      religion: preferences.religion,
      lastNicotineUsageTime: preferences.lastNicotineUsageTime,
      lastWeedUsageTime: preferences.lastWeedUsageTime,
    });
  } catch (error) {
    console.error('Error fetching preferences:', error);
    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
  }
}

export async function POST(request: NextRequest) {
  try {
    const session = await getSession();
    if (!session?.user) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
    }

    const body = await request.json();
    const {
      substance,
      trackingStartDate,
      hasCompletedSetup,
      dailyGoal,
      quitPlan,
      userName,
      userAge,
      religion,
      lastNicotineUsageTime,
      lastWeedUsageTime
    } = body;

    const preferences = await prisma.userPreferences.upsert({
      where: { userId: session.user.id },
      update: {
        substance,
        trackingStartDate,
        hasCompletedSetup,
        dailyGoal,
        quitPlanJson: quitPlan ? JSON.stringify(quitPlan) : null,
        userName,
        userAge,
        religion,
        lastNicotineUsageTime,
        lastWeedUsageTime,
      },
      create: {
        userId: session.user.id,
        substance,
        trackingStartDate,
        hasCompletedSetup,
        dailyGoal,
        quitPlanJson: quitPlan ? JSON.stringify(quitPlan) : null,
        userName,
        userAge,
        religion,
        lastNicotineUsageTime,
        lastWeedUsageTime,
      },
    });

    return NextResponse.json({
      substance: preferences.substance,
      trackingStartDate: preferences.trackingStartDate,
      hasCompletedSetup: preferences.hasCompletedSetup,
      dailyGoal: preferences.dailyGoal,
      quitPlan: preferences.quitPlanJson ? JSON.parse(preferences.quitPlanJson) : null,
      userName: preferences.userName,
      userAge: preferences.userAge,
      religion: preferences.religion,
      lastNicotineUsageTime: preferences.lastNicotineUsageTime,
      lastWeedUsageTime: preferences.lastWeedUsageTime,
    });
  } catch (error) {
    console.error('Error saving preferences:', error);
    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
  }
}