import { NextRequest, NextResponse } from 'next/server';
import { query } from '@/lib/db';

export async function GET(req: NextRequest) {
  const { searchParams } = new URL(req.url);
  const slug = searchParams.get('slug');

  if (!slug) {
    return NextResponse.json({ error: 'Missing tenant slug' }, { status: 400 });
  }

  try {
    const res = await query(`
      SELECT 
        t.id, t.name, t.slug, t.business_type, t.phone, t.email,
        t.address, t.city, t.state, t.zip_code, t.description,
        t.logo_url, t.cover_url, t.settings,
        t.subscription_status, t.is_active,
        COALESCE(p.name, 'Starter') as plan_name
      FROM tenants t
      LEFT JOIN plans p ON t.plan_id = p.id
      WHERE t.slug = $1
    `, [slug]);

    if (res.rows.length === 0) {
      return NextResponse.json({ error: 'Tenant not found' }, { status: 404 });
    }

    const tenant = res.rows[0];
    const settings = tenant.settings || {};

    return NextResponse.json({
      id: tenant.id,
      name: tenant.name,
      slug: tenant.slug,
      businessType: tenant.business_type,
      phone: tenant.phone || '',
      email: tenant.email || '',
      address: tenant.address || '',
      city: tenant.city || '',
      state: tenant.state || '',
      zipCode: tenant.zip_code || '',
      description: tenant.description || '',
      logoUrl: tenant.logo_url || '',
      coverUrl: tenant.cover_url || '',
      planName: tenant.plan_name,
      subscriptionStatus: tenant.subscription_status,
      // Settings JSONB
      themeColor: settings.theme_color || '#6C63FF',
      workingDays: settings.working_days || [1, 2, 3, 4, 5, 6],
      startTime: settings.start_time || '09:00',
      endTime: settings.end_time || '19:00',
      interval: settings.interval || 30,
      allowOnlineBooking: settings.allow_online_booking !== false,
      requireConfirmation: settings.require_confirmation || false,
      sendReminders: settings.send_reminders !== false,
      reminderMinutesBefore: settings.reminder_minutes_before || 60,
      allowCancellation: settings.allow_cancellation !== false,
      bookingAdvanceMin: settings.booking_advance_min || 60,
      bookingAdvanceMaxDays: settings.booking_advance_max_days || 30,
      cancellationLimitMin: settings.cancellation_limit_min || 120,
      toleranceMinutes: settings.tolerance_minutes || 15,
      notifyNewAppointment: settings.notify_new_appointment !== false,
      notifyCancellation: settings.notify_cancellation !== false,
      notifyClientReminder: settings.notify_client_reminder !== false,
      dailySummary: settings.daily_summary || false,
      weeklyReport: settings.weekly_report !== false,
      dailySchedules: settings.daily_schedules || null,
      profSchedules: settings.prof_schedules || {},
    });
  } catch (error: any) {
    console.error('GET Settings error:', error);
    return NextResponse.json({ error: error.message }, { status: 500 });
  }
}

export async function PUT(req: NextRequest) {
  try {
    const body = await req.json();
    const { slug } = body;

    if (!slug) return NextResponse.json({ error: 'Missing slug' }, { status: 400 });

    // Build the settings JSONB object
    const settingsJson = {
      theme_color: body.themeColor || '#6C63FF',
      working_days: body.workingDays || [1, 2, 3, 4, 5, 6],
      start_time: body.startTime || '09:00',
      end_time: body.endTime || '19:00',
      interval: body.interval || 30,
      allow_online_booking: body.allowOnlineBooking !== false,
      require_confirmation: body.requireConfirmation || false,
      send_reminders: body.sendReminders !== false,
      reminder_minutes_before: body.reminderMinutesBefore || 60,
      allow_cancellation: body.allowCancellation !== false,
      booking_advance_min: body.bookingAdvanceMin || 60,
      booking_advance_max_days: body.bookingAdvanceMaxDays || 30,
      cancellation_limit_min: body.cancellationLimitMin || 120,
      tolerance_minutes: body.toleranceMinutes || 15,
      notify_new_appointment: body.notifyNewAppointment !== false,
      notify_cancellation: body.notifyCancellation !== false,
      notify_client_reminder: body.notifyClientReminder !== false,
      daily_summary: body.dailySummary || false,
      weekly_report: body.weeklyReport !== false,
      daily_schedules: body.dailySchedules || null,
      prof_schedules: body.profSchedules || {},
    };

    const res = await query(`
      UPDATE tenants SET 
        name = COALESCE($1, name),
        business_type = COALESCE($2, business_type),
        phone = $3,
        email = $4,
        address = $5,
        city = $6,
        state = $7,
        zip_code = $8,
        description = $9,
        settings = $10,
        updated_at = NOW()
      WHERE slug = $11
      RETURNING id, name, slug
    `, [
      body.name, body.businessType,
      body.phone || null, body.email || null,
      body.address || null, body.city || null, body.state || null, body.zipCode || null,
      body.description || null,
      JSON.stringify(settingsJson),
      slug
    ]);

    if (res.rows.length === 0) {
      return NextResponse.json({ error: 'Tenant not found' }, { status: 404 });
    }

    return NextResponse.json({ success: true, tenant: res.rows[0] });
  } catch (error: any) {
    console.error('PUT Settings error:', error);
    return NextResponse.json({ error: error.message }, { status: 500 });
  }
}