'use server'

import { createClient } from '@/lib/supabase/server'
import { createAdminClient } from '@/lib/supabase/admin'
import { revalidatePath } from 'next/cache'
import type { BrandingSettings } from '@/lib/constants/branding'

export async function getBrandingSettings(): Promise<BrandingSettings> {
  try {
    const admin = createAdminClient()
    const { data } = await admin
      .from('settings')
      .select('*')
      .eq('id', 'branding')
      .maybeSingle()

    if (!data) {
      return {
        companyName: '',
        logoUrl: '',
        developerFooter: 'B2B Shop made by hephex',
        street: '',
        zip: '',
        city: '',
        billingStreet: '',
        billingZip: '',
        billingCity: '',
        sameBillingAddress: true,
        colorScheme: 'modern_blue',
        primaryColor: '#2563eb',
        accentColor: '#38bdf8',
      }
    }

    return {
      companyName: data.company_name || '',
      logoUrl: data.logo_url || '',
      developerFooter: data.developer_footer || 'B2B Shop made by hephex',
      street: data.street || '',
      zip: data.zip || '',
      city: data.city || '',
      billingStreet: data.billing_street || '',
      billingZip: data.billing_zip || '',
      billingCity: data.billing_city || '',
      sameBillingAddress: data.same_billing_address !== false,
      colorScheme: data.color_scheme || 'modern_blue',
      primaryColor: data.primary_color || '#2563eb',
      accentColor: data.accent_color || '#38bdf8',
    }
  } catch (err) {
    console.error('Failed to load branding settings:', err)
    return {
      companyName: '',
      logoUrl: '',
      developerFooter: 'B2B Shop made by hephex',
      street: '',
      zip: '',
      city: '',
      billingStreet: '',
      billingZip: '',
      billingCity: '',
      sameBillingAddress: true,
      colorScheme: 'modern_blue',
      primaryColor: '#2563eb',
      accentColor: '#38bdf8',
    }
  }
}

export async function saveBrandingSettings(
  settings: BrandingSettings
): Promise<{ success: boolean; error?: string }> {
  try {
    const supabase = await createClient()
    const { data: { user } } = await supabase.auth.getUser()

    if (user) {
      const { data: userData } = await supabase
        .from('users')
        .select('role')
        .eq('id', user.id)
        .single()

      if (!userData || userData.role !== 'admin') {
        return { success: false, error: 'Keine Berechtigung (nur Admins)' }
      }
    }

    const admin = createAdminClient()
    const { error } = await admin
      .from('settings')
      .upsert({
        id: 'branding',
        company_name: settings.companyName,
        logo_url: settings.logoUrl,
        developer_footer: settings.developerFooter,
        street: settings.street,
        zip: settings.zip,
        city: settings.city,
        billing_street: settings.sameBillingAddress ? settings.street : settings.billingStreet,
        billing_zip: settings.sameBillingAddress ? settings.zip : settings.billingZip,
        billing_city: settings.sameBillingAddress ? settings.city : settings.billingCity,
        same_billing_address: settings.sameBillingAddress,
        color_scheme: settings.colorScheme,
        primary_color: settings.primaryColor,
        accent_color: settings.accentColor,
        updated_at: new Date().toISOString(),
      })

    if (error) {
      console.error('Failed to save branding settings:', error)
      return { success: false, error: error.message }
    }

    revalidatePath('/')
    revalidatePath('/admin/einstellungen')
    return { success: true }
  } catch (err: any) {
    console.error('Exception in saveBrandingSettings:', err)
    return { success: false, error: err.message || 'Unerwarteter Fehler' }
  }
}