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class OpenRouterService {
constructor() {
this.apiUrl = 'https://openrouter.ai/api/v1/chat/completions';
this.apiKey = this.getApiKey();
this.model = 'google/gemma-3-27b-it:free';
}
getApiKey() {
if (typeof process !== 'undefined' && process.env && process.env.OPENROUTER_API_KEY) {
return process.env.OPENROUTER_API_KEY;
}
if (typeof window !== 'undefined' && window.OPENROUTER_API_KEY) {
return window.OPENROUTER_API_KEY;
}
return '';
}
setApiKey(key) {
this.apiKey = key;
}
async getContextualHint(passage, wordToReplace, context) {
if (!this.apiKey) {
return 'API key required for contextual hints';
}
try {
const response = await fetch(this.apiUrl, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${this.apiKey}`,
'HTTP-Referer': window.location.origin,
'X-Title': 'Cloze Reader'
},
body: JSON.stringify({
model: this.model,
messages: [{
role: 'user',
content: `In this passage: "${passage}"
The word "${wordToReplace}" has been replaced with a blank. Give me a helpful hint about what word fits here, considering the context: "${context}".
Provide a brief, educational hint that helps understand the word without giving it away directly.`
}],
max_tokens: 150,
temperature: 0.7
})
});
if (!response.ok) {
throw new Error(`API request failed: ${response.status}`);
}
const data = await response.json();
return data.choices[0].message.content.trim();
} catch (error) {
console.error('Error getting contextual hint:', error);
return 'Unable to generate hint at this time';
}
}
async getContextualization(title, author, passage) {
if (!this.apiKey) {
return `📚 Practice with classic literature from ${author}'s "${title}"`;
}
try {
const response = await fetch(this.apiUrl, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${this.apiKey}`,
'HTTP-Referer': window.location.origin,
'X-Title': 'Cloze Reader'
},
body: JSON.stringify({
model: this.model,
messages: [{
role: 'system',
content: 'You are a literary expert providing brief educational context about classic literature. Always respond with exactly 2 sentences, no more. Avoid exaggerative adverbs. Be factual and restrained.'
}, {
role: 'user',
content: `Provide educational context for this passage from "${title}" by ${author}: "${passage}"`
}],
max_tokens: 100,
temperature: 0.3
})
});
if (!response.ok) {
throw new Error(`API request failed: ${response.status}`);
}
const data = await response.json();
return data.choices[0].message.content.trim();
} catch (error) {
console.error('Error getting contextualization:', error);
return `📚 Practice with classic literature from ${author}'s "${title}"`;
}
}
}
export { OpenRouterService as AIService }; |