import { useFonts } from 'expo-font';
import { DMSans_300Light, DMSans_400Regular, DMSans_600SemiBold, DMSans_700Bold } from '@expo-google-fonts/dm-sans';
import { calcularSalarioLiquido, type ResultadoCalculo } from '@/utils/tax-calculator';

export function useAppFonts() {
    const [loaded, error] = useFonts({
        DMSans_300Light,
        DMSans_400Regular,
        DMSans_600SemiBold,
        DMSans_700Bold,
    });

    return { fontsLoaded: loaded, fontsError: error };
}

export function useSalaryCalculator(grossSalaryStr: string): ResultadoCalculo | null {
    const value = parseFloat(grossSalaryStr.replace(',', '.'));
    if (isNaN(value) || value <= 0) return null;
    return calcularSalarioLiquido(value);
}