/**
 * Server-side API functions
 * Estas funções são executadas APENAS no servidor (não no cliente)
 */

import { cookies, headers } from 'next/headers';

const API_BASE_URL = process.env.API_INTERNAL_URL || 'http://backend:8080';

interface AgencyBrandingData {
    logo_url?: string;
    primary_color?: string;
    secondary_color?: string;
    name?: string;
}

/**
 * Busca os dados de branding da agência no servidor
 * Usa o subdomínio do request para identificar a agência
 */
export async function getAgencyBranding(): Promise<AgencyBrandingData | null> {
    try {
        // Pegar o hostname do request
        const headersList = await headers();
        const hostname = headersList.get('host') || '';
        const subdomain = hostname.split('.')[0];

        if (!subdomain || subdomain === 'localhost' || subdomain === 'www') {
            return null;
        }

        // Buscar dados da agência pela API
        const url = `${API_BASE_URL}/api/tenant/config?subdomain=${subdomain}`;
        console.log(`[ServerAPI] Fetching agency config from: ${url}`);

        const response = await fetch(url, {
            cache: 'no-store', // Sempre buscar dados atualizados
            headers: {
                'Content-Type': 'application/json',
            },
        });

        if (!response.ok) {
            console.error(`[ServerAPI] Failed to fetch agency branding for ${subdomain}: ${response.status}`);
            return null;
        }

        const data = await response.json();
        console.log(`[ServerAPI] Agency branding data for ${subdomain}:`, JSON.stringify(data));
        return data as AgencyBrandingData;
    } catch (error) {
        console.error('[ServerAPI] Error fetching agency branding:', error);
        return null;
    }
}

/**
 * Busca apenas o logo da agência (para metadata)
 */
export async function getAgencyLogo(): Promise<string | null> {
    const branding = await getAgencyBranding();
    return branding?.logo_url || null;
}

/**
 * Busca as cores da agência (para passar ao client component)
 */
export async function getAgencyColors(): Promise<{ primary: string; secondary: string } | null> {
    const branding = await getAgencyBranding();

    if (branding?.primary_color && branding?.secondary_color) {
        return {
            primary: branding.primary_color,
            secondary: branding.secondary_color,
        };
    }

    return null;
}