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import vim
import datetime
import sys
import os
import json
import urllib.error
import urllib.request
import socket
import re
from urllib.error import URLError
from urllib.error import HTTPError
import traceback
is_debugging = vim.eval("g:vim_ai_debug") == "1"
debug_log_file = vim.eval("g:vim_ai_debug_log_file")
def load_api_key():
config_file_path = os.path.join(os.path.expanduser("~"), ".config/openai.token")
api_key = os.getenv("OPENAI_API_KEY")
try:
with open(config_file_path, 'r') as file:
api_key = file.read()
except Exception:
pass
if not api_key:
raise Exception("Missing OpenAI API key")
return api_key.strip()
def make_openai_options(options):
max_tokens = int(options['max_tokens'])
return {
'model': options['model'],
'max_tokens': max_tokens if max_tokens > 0 else None,
'temperature': float(options['temperature']),
}
def make_http_options(options):
return {
'request_timeout': float(options['request_timeout']),
}
def render_text_chunks(chunks):
generating_text = False
full_text = ''
for text in chunks:
if not text.strip() and not generating_text:
continue # trim newlines from the beginning
generating_text = True
vim.command("normal! a" + text)
vim.command("undojoin")
vim.command("redraw")
full_text += text
if not full_text.strip():
print_info_message('Empty response received. Tip: You can try modifying the prompt and retry.')
def parse_chat_messages(chat_content):
lines = chat_content.splitlines()
messages = []
for line in lines:
if line.startswith(">>> system"):
messages.append({"role": "system", "content": ""})
continue
if line.startswith(">>> user"):
messages.append({"role": "user", "content": ""})
continue
if line.startswith("<<< assistant"):
messages.append({"role": "assistant", "content": ""})
continue
if not messages:
continue
messages[-1]["content"] += "\n" + line
for message in messages:
# strip newlines from the content as it causes empty responses
message["content"] = message["content"].strip()
return messages
def parse_chat_header_options():
try:
options = {}
lines = vim.eval('getline(1, "$")')
contains_chat_options = '[chat-options]' in lines
if contains_chat_options:
# parse options that are defined in the chat header
options_index = lines.index('[chat-options]')
for line in lines[options_index + 1:]:
if line.startswith('#'):
# ignore comments
continue
if line == '':
# stop at the end of the region
break
(key, value) = line.strip().split('=')
if key == 'initial_prompt':
value = value.split('\\n')
options[key] = value
return options
except:
raise Exception("Invalid [chat-options]")
def vim_break_undo_sequence():
# breaks undo sequence (https://vi.stackexchange.com/a/29087)
vim.command("let &ul=&ul")
def printDebug(text, *args):
if not is_debugging:
return
with open(debug_log_file, "a") as file:
file.write(f"[{datetime.datetime.now()}] " + text.format(*args) + "\n")
OPENAI_RESP_DATA_PREFIX = 'data: '
OPENAI_RESP_DONE = '[DONE]'
OPENAI_API_KEY = load_api_key()
def openai_request(url, data, options):
headers = {
"Content-Type": "application/json",
"Authorization": f"Bearer {OPENAI_API_KEY}"
}
request_timeout=options['request_timeout']
req = urllib.request.Request(
url,
data=json.dumps({ **data }).encode("utf-8"),
headers=headers,
method="POST",
)
with urllib.request.urlopen(req, timeout=request_timeout) as response:
for line_bytes in response:
line = line_bytes.decode("utf-8", errors="replace")
if line.startswith(OPENAI_RESP_DATA_PREFIX):
line_data = line[len(OPENAI_RESP_DATA_PREFIX):-1]
if line_data == OPENAI_RESP_DONE:
pass
else:
openai_obj = json.loads(line_data)
yield openai_obj
def print_info_message(msg):
vim.command("redraw")
vim.command(f"normal \<Esc>")
vim.command("echohl ErrorMsg")
vim.command(f"echomsg '{msg}'")
vim.command("echohl None")
def handle_completion_error(error):
# nvim throws - pynvim.api.common.NvimError: Keyboard interrupt
is_nvim_keyboard_interrupt = "Keyboard interrupt" in str(error)
if isinstance(error, KeyboardInterrupt) or is_nvim_keyboard_interrupt:
print_info_message("Completion cancelled...")
elif isinstance(error, URLError) and isinstance(error.reason, socket.timeout):
print_info_message("Request timeout...")
elif isinstance(error, HTTPError):
status_code = error.getcode()
msg = f"OpenAI: HTTPError {status_code}"
if status_code == 401:
msg += ' (Hint: verify that your API key is valid)'
if status_code == 404:
msg += ' (Hint: verify that you have access to the OpenAI API and to the model)'
elif status_code == 429:
msg += ' (Hint: verify that your billing plan is "Pay as you go")'
print_info_message(msg)
else:
raise error
# clears "Completing..." message from the status line
def clear_echo_message():
# https://neovim.discourse.group/t/how-to-clear-the-echo-message-in-the-command-line/268/3
vim.command("call feedkeys(':','nx')")
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