209 lines
8.7 KiB
Python
209 lines
8.7 KiB
Python
import json
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from lib import gadget
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import urllib.request
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import urllib.error
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class LLMClient:
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class Message:
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def __init__(self, msg):
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raw_content = msg.get('content', '')
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# Auto-strip thinking dari content
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self.content = gadget.strip_thinking(raw_content) if isinstance(raw_content, str) else raw_content
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self.tool_calls = msg.get('tool_calls', None)
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self.warning = None
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def __init__(self, base_url, model, api_key, timeout=600):
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self.base_url = base_url.rstrip('/')
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self.model = model
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self.api_key = api_key
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self.timeout = timeout
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self.cancel_requested = False
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def chat(self, messages, tools=None, on_stream_chunk=None, disable_reasoning=False):
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url = f"{self.base_url}/chat/completions"
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payload = {
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"model": self.model,
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"messages": messages,
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"stream": True # Enable streaming
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}
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if tools:
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payload["tools"] = tools
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payload["tool_choice"] = "auto"
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# Hanya kirim parameter reasoning jika diminta eksplisit
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# Beberapa model/provider justru error jika parameter ini ada tapi tidak didukung
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if disable_reasoning:
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payload["reasoning"] = {"enabled": False}
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data = json.dumps(payload).encode('utf-8')
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req = urllib.request.Request(url, data=data, method='POST')
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req.add_header('Content-Type', 'application/json')
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req.add_header('Authorization', f'Bearer {self.api_key}')
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# Variabel untuk mengumpulkan hasil
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full_content = ""
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full_tool_calls = []
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reasoning_content = ""
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try:
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self.cancel_requested = False
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with urllib.request.urlopen(req, timeout=self.timeout) as resp:
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# Streaming: baca line by line
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for line in resp:
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if self.cancel_requested:
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# Stream cancellation
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full_content += "\n\n[Stream cancelled by user]"
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break
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line = line.decode('utf-8').strip()
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if not line or not line.startswith('data: '):
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continue
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data_str = line[6:] # Hapus "data: " prefix
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if data_str == '[DONE]':
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break
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try:
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chunk = json.loads(data_str)
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except json.JSONDecodeError:
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continue
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# Parse delta dari chunk
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delta = chunk.get('choices', [{}])[0].get('delta', {})
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finish_reason = chunk.get('choices', [{}])[0].get('finish_reason', None)
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# Stream reasoning content jika ada
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if 'reasoning_content' in delta:
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reasoning_content += delta['reasoning_content']
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# Stream tool_calls jika ada
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if 'tool_calls' in delta:
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tool_calls = delta['tool_calls']
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for tc in tool_calls:
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idx = tc.get('index', 0)
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# Pastikan list cukup panjang
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while len(full_tool_calls) <= idx:
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full_tool_calls.append({
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"id": "",
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"type": "function",
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"function": {"name": "", "arguments": ""}
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})
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# Update ID
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if 'id' in tc and tc['id']:
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full_tool_calls[idx]['id'] = tc['id']
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# Update function name
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if 'function' in tc and 'name' in tc['function']:
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full_tool_calls[idx]['function']['name'] += tc['function']['name']
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# Update arguments
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if 'function' in tc and 'arguments' in tc['function']:
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full_tool_calls[idx]['function']['arguments'] += tc['function']['arguments']
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# Stream content (text response)
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if 'content' in delta:
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chunk_text = delta['content'] or ""
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full_content += chunk_text
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# Callback untuk streaming ke UI
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if on_stream_chunk and chunk_text:
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on_stream_chunk(chunk_text)
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# Build final response
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message = {'content': full_content}
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if full_tool_calls:
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# Filter tool_calls yang valid (ada name dan arguments)
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valid_tool_calls = []
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for tc in full_tool_calls:
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name = tc.get('function', {}).get('name')
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args_str = tc.get('function', {}).get('arguments')
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tc_id = tc.get('id')
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# Pastikan name dan arguments ada
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if name and args_str and args_str.strip():
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# Generate ID jika kosong
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if not tc_id:
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tc_id = f"call_{len(valid_tool_calls)}"
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tc['id'] = tc_id
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try:
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# Validate dan re-encode JSON untuk format yang konsisten
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parsed_args = json.loads(args_str)
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tc['function']['arguments'] = json.dumps(parsed_args, ensure_ascii=False)
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valid_tool_calls.append(tc)
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except json.JSONDecodeError:
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# Invalid JSON, coba raw string tapi hanya jika tidak kosong
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tc['function']['arguments'] = args_str
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valid_tool_calls.append(tc)
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if valid_tool_calls:
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message['tool_calls'] = valid_tool_calls
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response = {'choices': [{'message': message}]}
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except urllib.error.HTTPError as e:
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body_text = ""
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try:
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body_text = e.read().decode('utf-8', errors='replace')
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except Exception:
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pass
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if tools and e.code == 404:
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try:
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body = json.loads(body_text) if body_text else {}
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if 'tool use' in body.get('error', {}).get('message', '').lower():
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result = self.chat(messages, tools=None)
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result.warning = "Tool calling not supported by this model. Running in chat-only mode."
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return result
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except Exception:
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pass
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detail = f" - {body_text[:500]}" if body_text else ""
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return self.Message({'content': f"HTTP Error: {e.code} {e.reason}{detail}", 'tool_calls': None})
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except Exception as e:
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return self.Message({'content': f"Error: {str(e)}", 'tool_calls': None})
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if 'choices' not in response:
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raw_preview = json.dumps(response)[:500]
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return self.Message({
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'content': (
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f"Error: Unexpected response — 'choices' key missing.\n"
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f" URL : {url}\n"
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f" Model : {self.model}\n"
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f" Response: {raw_preview}"
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),
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'tool_calls': None
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})
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if not response['choices']:
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raw_preview = json.dumps(response)[:500]
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return self.Message({
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'content': (
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f"Error: 'choices' is empty in the response.\n"
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f" URL : {url}\n"
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f" Model : {self.model}\n"
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f" Response: {raw_preview}"
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),
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'tool_calls': None
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})
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if 'message' not in response['choices'][0]:
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raw_preview = json.dumps(response['choices'][0])[:500]
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return self.Message({
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'content': (
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f"Error: 'message' key missing in first choice.\n"
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f" URL : {url}\n"
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f" Model : {self.model}\n"
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f" Choice : {raw_preview}"
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),
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'tool_calls': None
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})
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message = response['choices'][0]['message']
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# Handle reasoning_content field dari OpenRouter/models yang support thinking
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# Pindahkan ke content jangan sampai keluar
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reasoning_content = message.pop('reasoning_content', None)
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reasoning_field = message.pop('reasoning', None)
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# Jangan inject reasoning ke content — buang saja
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# (kita sudah strip via _strip_thinking di Message.__init__)
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return self.Message(message)
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