# -*- coding:utf-8 -*-
import json
import sys
import os
sys.path.insert(0, os.getcwd())

method = request.method

if method == 'GET':
    return json.dumps({
        'usage': 'POST with JSON body',
        'params': {
            'texts': 'list[str] (required, up to 128 texts)',
        },
        'example': 'POST {texts: [a cat, a dog]}'
    }, ensure_ascii=False)

texts = params_kw.get('texts', [])
if isinstance(texts, str):
    texts = [texts]

if not texts:
    return json.dumps({'error': 'texts is required (list of strings)'}, ensure_ascii=False)

if len(texts) > 128:
    return json.dumps({'error': 'max 128 texts per request'}, ensure_ascii=False)

try:
    import time
    from workers.clip_model import embed_texts
    t0 = time.time()
    embeddings = embed_texts(texts)
    elapsed = round(time.time() - t0, 3)
    return json.dumps({
        'status': 'ok',
        'count': len(embeddings),
        'dimension': len(embeddings[0]),
        'embeddings': embeddings,
        'elapsed': elapsed
    }, ensure_ascii=False)
except Exception as e:
    import traceback
    return json.dumps({'error': str(e), 'traceback': traceback.format_exc()}, ensure_ascii=False)