from __future__ import annotations
import logging
import json
import os.path
from typing import Iterator
from uuid import uuid4
from functools import partial
try:
import webview
import platformdirs
from plyer import camera
from plyer import filechooser
app_storage_path = platformdirs.user_pictures_dir
user_select_image = partial(
filechooser.open_file,
path=platformdirs.user_pictures_dir(),
filters=[["Image", "*.jpg", "*.jpeg", "*.png", "*.webp", "*.svg"]],
)
has_plyer = True
except (ImportError, NameError):
has_plyer = False
try:
from android.runnable import run_on_ui_thread
from android.storage import app_storage_path
from android.permissions import request_permissions, Permission
from android.permissions import _RequestPermissionsManager
_RequestPermissionsManager.register_callback()
from .android_gallery import user_select_image
has_android = True
except ImportError:
run_on_ui_thread = lambda a : a
has_android = False
from g4f import version, models
from g4f import get_last_provider, ChatCompletion
from g4f.errors import VersionNotFoundError
from g4f.Provider import ProviderType, __providers__, __map__
from g4f.providers.base_provider import ProviderModelMixin
from g4f.Provider.bing.create_images import patch_provider
from g4f.Provider.Bing import Conversation
conversations: dict[str, Conversation] = {}
class Api():
def get_models(self) -> list[str]:
"""
Return a list of all models.
Fetches and returns a list of all available models in the system.
Returns:
List[str]: A list of model names.
"""
return models._all_models
def get_provider_models(self, provider: str) -> list[dict]:
if provider in __map__:
provider: ProviderType = __map__[provider]
if issubclass(provider, ProviderModelMixin):
return [{"model": model, "default": model == provider.default_model} for model in provider.get_models()]
elif provider.supports_gpt_35_turbo or provider.supports_gpt_4:
return [
*([{"model": "gpt-4", "default": not provider.supports_gpt_4}] if provider.supports_gpt_4 else []),
*([{"model": "gpt-3.5-turbo", "default": not provider.supports_gpt_4}] if provider.supports_gpt_35_turbo else [])
]
else:
return [];
def get_providers(self) -> list[str]:
"""
Return a list of all working providers.
"""
return [provider.__name__ for provider in __providers__ if provider.working]
def get_version(self):
"""
Returns the current and latest version of the application.
Returns:
dict: A dictionary containing the current and latest version.
"""
try:
current_version = version.utils.current_version
except VersionNotFoundError:
current_version = None
return {
"version": current_version,
"latest_version": version.utils.latest_version,
}
def generate_title(self):
"""
Generates and returns a title based on the request data.
Returns:
dict: A dictionary with the generated title.
"""
return {'title': ''}
def get_conversation(self, options: dict, **kwargs) -> Iterator:
window = webview.windows[0]
if hasattr(self, "image") and self.image is not None:
kwargs["image"] = open(self.image, "rb")
for message in self._create_response_stream(
self._prepare_conversation_kwargs(options, kwargs),
options.get("conversation_id")
):
if not window.evaluate_js(f"if (!this.abort) this.add_message_chunk({json.dumps(message)}); !this.abort && !this.error;"):
break
self.image = None
self.set_selected(None)
@run_on_ui_thread
def choose_file(self):
self.request_permissions()
filechooser.open_file(
path=platformdirs.user_pictures_dir(),
on_selection=print
)
@run_on_ui_thread
def choose_image(self):
self.request_permissions()
user_select_image(
on_selection=self.on_image_selection
)
@run_on_ui_thread
def take_picture(self):
self.request_permissions()
filename = os.path.join(app_storage_path(), f"chat-{uuid4()}.png")
camera.take_picture(filename=filename, on_complete=self.on_camera)
def on_image_selection(self, filename):
if filename is not None and os.path.exists(filename):
self.image = filename
else:
self.image = None
self.set_selected(None if self.image is None else "image")
def on_camera(self, filename):
if filename is not None and os.path.exists(filename):
self.image = filename
else:
self.image = None
self.set_selected(None if self.image is None else "camera")
def set_selected(self, input_id: str = None):
window = webview.windows[0]
if window is not None:
window.evaluate_js(
f"document.querySelector(`.file-label.selected`)?.classList.remove(`selected`);"
)
if input_id is not None and input_id in ("image", "camera"):
window.evaluate_js(
f'document.querySelector(`label[for="{input_id}"]`)?.classList.add(`selected`);'
)
def request_permissions(self):
if has_android:
request_permissions([
Permission.CAMERA,
Permission.READ_EXTERNAL_STORAGE,
Permission.WRITE_EXTERNAL_STORAGE
])
def _prepare_conversation_kwargs(self, json_data: dict, kwargs: dict):
"""
Prepares arguments for chat completion based on the request data.
Reads the request and prepares the necessary arguments for handling
a chat completion request.
Returns:
dict: Arguments prepared for chat completion.
"""
provider = json_data.get('provider', None)
if "image" in kwargs and provider is None:
provider = "Bing"
if provider == 'OpenaiChat':
kwargs['auto_continue'] = True
messages = json_data['messages']
if json_data.get('web_search'):
if provider == "Bing":
kwargs['web_search'] = True
else:
from .internet import get_search_message
messages[-1]["content"] = get_search_message(messages[-1]["content"])
conversation_id = json_data.get("conversation_id")
if conversation_id and conversation_id in conversations:
kwargs["conversation"] = conversations[conversation_id]
model = json_data.get('model')
model = model if model else models.default
patch = patch_provider if json_data.get('patch_provider') else None
return {
"model": model,
"provider": provider,
"messages": messages,
"stream": True,
"ignore_stream": True,
"patch_provider": patch,
"return_conversation": True,
**kwargs
}
def _create_response_stream(self, kwargs, conversation_id: str) -> Iterator:
"""
Creates and returns a streaming response for the conversation.
Args:
kwargs (dict): Arguments for creating the chat completion.
Yields:
str: JSON formatted response chunks for the stream.
Raises:
Exception: If an error occurs during the streaming process.
"""
try:
first = True
for chunk in ChatCompletion.create(**kwargs):
if first:
first = False
yield self._format_json("provider", get_last_provider(True))
if isinstance(chunk, Conversation):
conversations[conversation_id] = chunk
yield self._format_json("conversation", conversation_id)
elif isinstance(chunk, Exception):
logging.exception(chunk)
yield self._format_json("message", get_error_message(chunk))
else:
yield self._format_json("content", chunk)
except Exception as e:
logging.exception(e)
yield self._format_json('error', get_error_message(e))
def _format_json(self, response_type: str, content):
"""
Formats and returns a JSON response.
Args:
response_type (str): The type of the response.
content: The content to be included in the response.
Returns:
str: A JSON formatted string.
"""
return {
'type': response_type,
response_type: content
}
def get_error_message(exception: Exception) -> str:
"""
Generates a formatted error message from an exception.
Args:
exception (Exception): The exception to format.
Returns:
str: A formatted error message string.
"""
return f"{get_last_provider().__name__}: {type(exception).__name__}: {exception}"
