import axios from 'axios';
import { getApiUrl, getAdminApiKey } from '../config';
import { logger } from '../logger';

const AI_API_BASE_URL = getApiUrl().replace(/\/$/, "");
const apiKey = getAdminApiKey();

/**
 * Centralized Axios client for internal API communication (Edtech API).
 * Standardizes headers, timeouts, and error logging.
 */
export const apiClient = axios.create({
    baseURL: AI_API_BASE_URL,
    timeout: 30000, // 30s timeout for AI operations
    headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${apiKey}`
    }
});

// Response interceptor for consistent error logging
apiClient.interceptors.response.use(
    (response) => response,
    (error) => {
        const url = error.config?.url;
        const status = error.response?.status;
        const message = error.response?.data?.error || error.message;
        
        logger.error(`[API_CLIENT] Error calling ${url} (Status: ${status}): ${message}`);
        return Promise.reject(error);
    }
);