api.js

class APIService {
    constructor() {
        
        const isLocalhost = window.location.hostname === 'localhost' || window.location.hostname === '127.0.0.1';
        
        this.baseURL = isLocalhost 
            ? 'http://localhost:5000/api' 
            : 'https://quickbucks-mtkl.onrender.com/api';

        this.token = localStorage.getItem('authToken');
    }

    async request(endpoint, options = {}) {
        const url = `${this.baseURL}${endpoint}`;
        const config = {
            headers: {
                'Content-Type': 'application/json',
                ...(this.token && { 'Authorization': `Bearer ${this.token}` })
            },
            ...options
        };

        try {
            const response = await fetch(url, config);
            const data = await response.json();
            
            if (!response.ok) {
                throw new Error(data.message || 'Request failed');
            }
            return data;
        } catch (error) {
            console.error('API Error:', error);
            if (error.message.includes('token') || error.message.includes('auth')) {
                this.logout();
            }
            throw error;
        }
    }

    // Auth methods
    async login(email, password) {
        const data = await this.request('/auth/login', {
            method: 'POST',
            body: JSON.stringify({ email, password })
        });
        
        this.token = data.token;
        localStorage.setItem('authToken', data.token);
        localStorage.setItem('user', JSON.stringify(data.user));
        return data;
    }

    async register(name, email, password) {
        const data = await this.request('/auth/register', {
            method: 'POST',
            body: JSON.stringify({ name, email, password })
        });
        
        this.token = data.token;
        localStorage.setItem('authToken', data.token);
        localStorage.setItem('user', JSON.stringify(data.user));
        return data;
    }

    logout() {
        this.token = null;
        localStorage.removeItem('authToken');
        localStorage.removeItem('user');
        window.location.href = 'login.html';
    }

    // Task methods
    async getTasks() {
        return await this.request('/tasks');
    }

    async createTask(taskData) {
        return await this.request('/tasks', {
            method: 'POST',
            body: JSON.stringify(taskData)
        });
    }

    async completeTask(taskId) {
        return await this.request(`/tasks/${taskId}/complete`, {
            method: 'PATCH'
        });
    }

    async deleteTask(taskId) {
        return await this.request(`/tasks/${taskId}`, {
            method: 'DELETE'
        });
    }

    // Analytics methods
    async getStats() {
        return await this.request('/analytics/stats');
    }

    async getInsights() {
        return await this.request('/analytics/insights');
    }

    async getPatterns() {
        return await this.request('/analytics/patterns');
    }

    isAuthenticated() {
        return !!this.token;
    }
}

const api = new APIService();