feat: add Lingma OpenAI-compatible gateway service

app/openai_schema.py

@@ -0,0 +1,45 @@
+from __future__ import annotations
+
+from typing import Literal
+
+from pydantic import BaseModel, Field
+
+
+class ChatMessage(BaseModel):
+    role: Literal["system", "user", "assistant", "tool"]
+    content: str
+
+
+class ChatCompletionsRequest(BaseModel):
+    model: str
+    messages: list[ChatMessage]
+    stream: bool = False
+    temperature: float | None = None
+    top_p: float | None = None
+
+
+class ModelData(BaseModel):
+    id: str
+    name: str | None = None
+    object: str = "model"
+    created: int = 0
+    owned_by: str = "lingma"
+
+
+class ModelsResponse(BaseModel):
+    object: str = "list"
+    data: list[ModelData]
+
+
+class ChatCompletionChoice(BaseModel):
+    index: int = 0
+    finish_reason: str | None = "stop"
+    message: dict = Field(default_factory=dict)
+
+
+class ChatCompletionResponse(BaseModel):
+    id: str
+    object: str = "chat.completion"
+    created: int
+    model: str
+    choices: list[ChatCompletionChoice]