import { API_BASE_URL, API_ENDPOINTS } from '../config/api';

export const apiClient = {
    async getFitnessProfile(token?: string | null) {
        try {
            const headers: Record<string, string> = {
                'Content-Type': 'application/json',
                ...(token && { 'Authorization': `Bearer ${token}` }),
            };
            const res = await fetch(`${API_BASE_URL}${API_ENDPOINTS.PROFILE.FITNESS}`, { headers });
            if (!res.ok) {
                throw new Error('Failed to fetch fitness profile');
            }
            return await res.json();
        } catch (e) {
            console.warn('Using mock fitness profile due to fetch error', e);
            // Mock data shape should match backend response
            return { steps: 0, calories: 0, duration: 0 };
        }
    },
    async getRecentActivities(token?: string | null) {
        // Placeholder endpoint – adjust to match backend implementation
        try {
            const headers: Record<string, string> = {
                'Content-Type': 'application/json',
                ...(token && { 'Authorization': `Bearer ${token}` }),
            };
            const res = await fetch(`${API_BASE_URL}/api/fitness-goals/recent`, { headers });
            if (!res.ok) {
                throw new Error('Failed to fetch recent activities');
            }
            return await res.json();
        } catch (e) {
            console.warn('Using mock recent activities due to fetch error', e);
            // Return empty array or sample data
            return [];
        }
    },

    async syncSteps(steps: number, token?: string | null) {
        try {
            const headers: Record<string, string> = {
                'Content-Type': 'application/json',
                ...(token && { 'Authorization': `Bearer ${token}` }),
            };
            const res = await fetch(`${API_BASE_URL}/api/activity/steps`, {
                method: 'POST',
                headers,
                body: JSON.stringify({ steps, timestamp: new Date().toISOString() }),
            });
            if (!res.ok) throw new Error('Failed to sync steps');
            return await res.json();
        } catch (e) {
            console.warn('Failed to sync steps', e);
            throw e;
        }
    },

    async getDailyActivity(date?: string, token?: string | null) {
        try {
            const headers: Record<string, string> = {
                'Content-Type': 'application/json',
                ...(token && { 'Authorization': `Bearer ${token}` }),
            };
            const dateParam = date || new Date().toISOString().split('T')[0];
            const res = await fetch(`${API_BASE_URL}/api/activity/daily?date=${dateParam}`, { headers });
            if (!res.ok) throw new Error('Failed to fetch daily activity');
            return await res.json();
        } catch (e) {
            console.warn('Failed to fetch daily activity', e);
            return { steps: 0, calories: 0, duration: 0 };
        }
    },
};