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/**
* HF Leaderboard API Client
* Communicates with FastAPI backend for HF Hub leaderboard persistence
*/
export class HFLeaderboardAPI {
constructor(baseUrl = '') {
// If no baseUrl provided, use current origin (works for both dev and production)
this.baseUrl = baseUrl || window.location.origin;
}
/**
* Get leaderboard from HF Hub
* @returns {Promise<Array>} Array of leaderboard entries
*/
async getLeaderboard() {
try {
const response = await fetch(`${this.baseUrl}/api/leaderboard`, {
method: 'GET',
headers: {
'Content-Type': 'application/json'
}
});
if (!response.ok) {
throw new Error(`HTTP ${response.status}: ${response.statusText}`);
}
const data = await response.json();
if (data.success) {
console.log('📥 HF API: Retrieved leaderboard', {
entries: data.leaderboard.length,
message: data.message
});
return data.leaderboard;
} else {
throw new Error(data.message || 'Failed to retrieve leaderboard');
}
} catch (error) {
console.error('❌ HF API: Error fetching leaderboard:', error);
throw error;
}
}
/**
* Add new entry to leaderboard
* @param {Object} entry - Leaderboard entry {initials, level, round, passagesPassed, date}
* @returns {Promise<Object>} Response object
*/
async addEntry(entry) {
try {
const response = await fetch(`${this.baseUrl}/api/leaderboard/add`, {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(entry)
});
if (!response.ok) {
const errorData = await response.json().catch(() => ({ detail: response.statusText }));
throw new Error(`HTTP ${response.status}: ${errorData.detail || response.statusText}`);
}
const data = await response.json();
console.log('✅ HF API: Added entry', {
initials: entry.initials,
level: entry.level,
message: data.message
});
return data;
} catch (error) {
console.error('❌ HF API: Error adding entry:', error);
throw error;
}
}
/**
* Update entire leaderboard
* @param {Array} entries - Array of leaderboard entries
* @returns {Promise<Object>} Response object
*/
async updateLeaderboard(entries) {
try {
const response = await fetch(`${this.baseUrl}/api/leaderboard/update`, {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(entries)
});
if (!response.ok) {
const errorData = await response.json().catch(() => ({ detail: response.statusText }));
throw new Error(`HTTP ${response.status}: ${errorData.detail || response.statusText}`);
}
const data = await response.json();
console.log('✅ HF API: Updated leaderboard', {
entries: entries.length,
message: data.message
});
return data;
} catch (error) {
console.error('❌ HF API: Error updating leaderboard:', error);
throw error;
}
}
/**
* Clear all leaderboard data (admin function)
* @returns {Promise<Object>} Response object
*/
async clearLeaderboard() {
try {
const response = await fetch(`${this.baseUrl}/api/leaderboard/clear`, {
method: 'DELETE',
headers: {
'Content-Type': 'application/json'
}
});
if (!response.ok) {
const errorData = await response.json().catch(() => ({ detail: response.statusText }));
throw new Error(`HTTP ${response.status}: ${errorData.detail || response.statusText}`);
}
const data = await response.json();
console.log('✅ HF API: Cleared leaderboard', {
message: data.message
});
return data;
} catch (error) {
console.error('❌ HF API: Error clearing leaderboard:', error);
throw error;
}
}
/**
* Check if HF backend is available
* @returns {Promise<boolean>} True if backend is reachable
*/
async isAvailable() {
try {
const response = await fetch(`${this.baseUrl}/api/leaderboard`, {
method: 'GET',
headers: {
'Content-Type': 'application/json'
}
});
return response.ok;
} catch (error) {
console.warn('⚠️ HF API: Backend not available, will use localStorage fallback');
return false;
}
}
}
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