108 lines
4.5 KiB
TypeScript
108 lines
4.5 KiB
TypeScript
import { NextRequest, NextResponse } from 'next/server';
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const OPENROUTER_API_KEY = process.env.OPENROUTER_API_KEY;
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const OPENROUTER_MODEL = 'anthropic/claude-3.5-haiku';
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export async function POST(request: NextRequest) {
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try {
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const { message } = await request.json();
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if (!message || typeof message !== 'string') {
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return NextResponse.json(
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{ error: 'Message is required and must be a string' },
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{ status: 400 }
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);
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}
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if (!OPENROUTER_API_KEY) {
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console.error('OPENROUTER_API_KEY is not configured');
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// Fallback: return original message if API key is missing
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return NextResponse.json({ rewrittenMessage: message });
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}
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const prompt = `You are a content moderation assistant. Analyze the following message and determine if it is truly inappropriate, unfriendly, sexist, or offensive.
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Rules:
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- ONLY rewrite the message if it is genuinely unfriendly, sexist, inappropriate, or offensive
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- If the message is polite, constructive, or even just neutral/critical feedback, return it UNCHANGED
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- If the message needs rewriting, rewrite it to express the COMPLETE OPPOSITE meaning - make it positive, respectful, and appreciative
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- Maintain the original language (German or English)
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- Return ONLY the message text (either unchanged original or rewritten version), nothing else
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Message: "${message}"`;
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const response = await fetch('https://openrouter.ai/api/v1/chat/completions', {
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method: 'POST',
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headers: {
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'Authorization': `Bearer ${OPENROUTER_API_KEY}`,
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'Content-Type': 'application/json',
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'HTTP-Referer': 'https://hoerdle.elpatron.me',
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'X-Title': 'Hördle Message Rewriter'
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},
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body: JSON.stringify({
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model: OPENROUTER_MODEL,
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messages: [
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{
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role: 'user',
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content: prompt
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}
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],
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temperature: 0.7,
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max_tokens: 500
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})
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});
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if (!response.ok) {
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console.error('OpenRouter API error:', await response.text());
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// Fallback: return original message
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return NextResponse.json({ rewrittenMessage: message });
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}
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const data = await response.json();
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let rewrittenMessage = data.choices?.[0]?.message?.content?.trim() || message;
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// Remove any explanatory comments in parentheses that the AI might add
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// e.g., "(This message is a friendly, positive comment expressing appreciation. No rewriting is necessary.)"
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rewrittenMessage = rewrittenMessage.replace(/\s*\([^)]*\)\s*/g, '').trim();
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// Remove surrounding quotes if present (AI sometimes adds quotes)
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// Handle both single and double quotes, and multiple layers of quotes
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rewrittenMessage = rewrittenMessage.replace(/^["']+|["']+$/g, '').trim();
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// Normalize both messages for comparison (remove extra whitespace, normalize quotes, case-insensitive)
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const normalizeForComparison = (text: string): string => {
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return text
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.trim()
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.replace(/["']/g, '') // Remove all quotes for comparison
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.replace(/\s+/g, ' ') // Normalize whitespace
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.toLowerCase()
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.replace(/[.,!?;:]\s*$/, ''); // Remove trailing punctuation for comparison
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};
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const originalTrimmed = message.trim();
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const rewrittenTrimmed = rewrittenMessage.trim();
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const originalNormalized = normalizeForComparison(originalTrimmed);
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const rewrittenNormalized = normalizeForComparison(rewrittenTrimmed);
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// Check if message was actually changed (content-wise, not just formatting)
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// Only consider it changed if the normalized content is different
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const wasChanged = originalNormalized !== rewrittenNormalized;
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if (wasChanged) {
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rewrittenMessage = rewrittenTrimmed + " (autocorrected by Polite-Bot)";
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} else {
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// Return original message if not changed (without suffix)
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rewrittenMessage = originalTrimmed;
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}
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return NextResponse.json({ rewrittenMessage });
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} catch (error) {
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console.error('Error rewriting message:', error);
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return NextResponse.json(
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{ error: 'Internal Server Error' },
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{ status: 500 }
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);
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}
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}
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