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import json
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import urllib.request
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import urllib.error
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import logging
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from pr.config import DEFAULT_TEMPERATURE, DEFAULT_MAX_TOKENS
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from pr.core.context import auto_slim_messages
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logger = logging.getLogger('pr')
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def call_api(messages, model, api_url, api_key, use_tools, tools_definition, verbose=False):
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try:
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messages = auto_slim_messages(messages, verbose=verbose)
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logger.debug(f"=== API CALL START ===")
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logger.debug(f"Model: {model}")
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logger.debug(f"API URL: {api_url}")
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logger.debug(f"Use tools: {use_tools}")
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logger.debug(f"Message count: {len(messages)}")
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headers = {
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'Content-Type': 'application/json',
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}
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if api_key:
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headers['Authorization'] = f'Bearer {api_key}'
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data = {
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'model': model,
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'messages': messages,
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'temperature': DEFAULT_TEMPERATURE,
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'max_tokens': DEFAULT_MAX_TOKENS
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}
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if "gpt-5" in model:
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del data['temperature']
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del data['max_tokens']
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logger.debug("GPT-5 detected: removed temperature and max_tokens")
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if use_tools:
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data['tools'] = tools_definition
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data['tool_choice'] = 'auto'
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logger.debug(f"Tool calling enabled with {len(tools_definition)} tools")
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request_json = json.dumps(data)
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logger.debug(f"Request payload size: {len(request_json)} bytes")
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req = urllib.request.Request(
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api_url,
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data=request_json.encode('utf-8'),
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headers=headers,
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method='POST'
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)
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logger.debug("Sending HTTP request...")
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with urllib.request.urlopen(req) as response:
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response_data = response.read().decode('utf-8')
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logger.debug(f"Response received: {len(response_data)} bytes")
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result = json.loads(response_data)
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if 'usage' in result:
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logger.debug(f"Token usage: {result['usage']}")
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if 'choices' in result and result['choices']:
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choice = result['choices'][0]
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if 'message' in choice:
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msg = choice['message']
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logger.debug(f"Response role: {msg.get('role', 'N/A')}")
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if 'content' in msg and msg['content']:
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logger.debug(f"Response content length: {len(msg['content'])} chars")
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if 'tool_calls' in msg:
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logger.debug(f"Response contains {len(msg['tool_calls'])} tool call(s)")
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logger.debug("=== API CALL END ===")
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return result
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except urllib.error.HTTPError as e:
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error_body = e.read().decode('utf-8')
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logger.error(f"API HTTP Error: {e.code} - {error_body}")
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logger.debug("=== API CALL FAILED ===")
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return {"error": f"API Error: {e.code}", "message": error_body}
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except Exception as e:
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logger.error(f"API call failed: {e}")
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logger.debug("=== API CALL FAILED ===")
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return {"error": str(e)}
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def list_models(model_list_url, api_key):
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try:
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req = urllib.request.Request(model_list_url)
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if api_key:
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req.add_header('Authorization', f'Bearer {api_key}')
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with urllib.request.urlopen(req) as response:
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data = json.loads(response.read().decode('utf-8'))
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return data.get('data', [])
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except Exception as e:
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return {"error": str(e)}
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