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import enum
from typing import Optional
from pydantic import BaseModel
from core.app.app_config.entities import FileExtraConfig
from core.file.tool_file_parser import ToolFileParser
from core.file.upload_file_parser import UploadFileParser
from core.model_runtime.entities.message_entities import ImagePromptMessageContent
from extensions.ext_database import db
from models.model import UploadFile
class FileType(enum.Enum):
IMAGE = 'image'
@staticmethod
def value_of(value):
for member in FileType:
if member.value == value:
return member
raise ValueError(f"No matching enum found for value '{value}'")
class FileTransferMethod(enum.Enum):
REMOTE_URL = 'remote_url'
LOCAL_FILE = 'local_file'
TOOL_FILE = 'tool_file'
@staticmethod
def value_of(value):
for member in FileTransferMethod:
if member.value == value:
return member
raise ValueError(f"No matching enum found for value '{value}'")
class FileBelongsTo(enum.Enum):
USER = 'user'
ASSISTANT = 'assistant'
@staticmethod
def value_of(value):
for member in FileBelongsTo:
if member.value == value:
return member
raise ValueError(f"No matching enum found for value '{value}'")
class FileVar(BaseModel):
id: Optional[str] = None # message file id
tenant_id: str
type: FileType
transfer_method: FileTransferMethod
url: Optional[str] = None # remote url
related_id: Optional[str] = None
extra_config: Optional[FileExtraConfig] = None
filename: Optional[str] = None
extension: Optional[str] = None
mime_type: Optional[str] = None
def to_dict(self) -> dict:
return {
'__variant': self.__class__.__name__,
'tenant_id': self.tenant_id,
'type': self.type.value,
'transfer_method': self.transfer_method.value,
'url': self.preview_url,
'related_id': self.related_id,
'filename': self.filename,
'extension': self.extension,
'mime_type': self.mime_type,
}
def to_markdown(self) -> str:
"""
Convert file to markdown
:return:
"""
preview_url = self.preview_url
if self.type == FileType.IMAGE:
text = f''
else:
text = f'[{self.filename or preview_url}]({preview_url})'
return text
@property
def data(self) -> Optional[str]:
"""
Get image data, file signed url or base64 data
depending on config MULTIMODAL_SEND_IMAGE_FORMAT
:return:
"""
return self._get_data()
@property
def preview_url(self) -> Optional[str]:
"""
Get signed preview url
:return:
"""
return self._get_data(force_url=True)
@property
def prompt_message_content(self) -> ImagePromptMessageContent:
if self.type == FileType.IMAGE:
image_config = self.extra_config.image_config
return ImagePromptMessageContent(
data=self.data,
detail=ImagePromptMessageContent.DETAIL.HIGH
if image_config.get("detail") == "high" else ImagePromptMessageContent.DETAIL.LOW
)
def _get_data(self, force_url: bool = False) -> Optional[str]:
if self.type == FileType.IMAGE:
if self.transfer_method == FileTransferMethod.REMOTE_URL:
return self.url
elif self.transfer_method == FileTransferMethod.LOCAL_FILE:
upload_file = (db.session.query(UploadFile)
.filter(
UploadFile.id == self.related_id,
UploadFile.tenant_id == self.tenant_id
).first())
return UploadFileParser.get_image_data(
upload_file=upload_file,
force_url=force_url
)
elif self.transfer_method == FileTransferMethod.TOOL_FILE:
extension = self.extension
# add sign url
return ToolFileParser.get_tool_file_manager().sign_file(tool_file_id=self.related_id, extension=extension)
return None
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