feat: Add base project structure with API and web components

api/app/schemas/prompt_schema.py

@@ -0,0 +1,61 @@
+from jinja2 import Environment, Template, meta
+from typing import Any, Dict
+from enum import Enum
+from pydantic import BaseModel, Field
+from abc import ABC
+from typing import Union, List
+
+
+class PromptMessageRole(str, Enum):
+    SYSTEM = "system"
+    USER = "user"
+    ASSISTANT = "assistant"
+
+class TextPromptMessageContent(BaseModel):
+    type: str = Field(default="text")
+    data: str
+PromptMessageContentUnionTypes = TextPromptMessageContent
+class PromptMessage(ABC, BaseModel):
+    role: PromptMessageRole
+    content: Union[str, List[PromptMessageContentUnionTypes], None] = None
+    name: Union[str, None] = None
+
+    model_config = {"arbitrary_types_allowed": True}
+
+    def is_empty(self) -> bool:
+        return not self.content
+
+    def get_text_content(self) -> str:
+        if isinstance(self.content, str):
+            return self.content
+        elif isinstance(self.content, list):
+            return "".join([item.data for item in self.content if isinstance(item, TextPromptMessageContent)])
+        return ""
+
+
+def render_prompt_message(template_str: str, role: PromptMessageRole, params: Dict[str, Any]) -> PromptMessage:
+    """
+    通用函数：自动解析模板变量，渲染PromptMessage
+    - template_str: Jinja2模板字符串
+    - role: PromptMessageRole
+    - params: 提供模板变量的字典
+    """
+    env = Environment()
+    parsed_content = env.parse(template_str)
+    variables = meta.find_undeclared_variables(parsed_content)
+
+    # 检查缺失参数，如果缺失则给默认值 ''
+    for var in variables:
+        if var not in params:
+            params[var] = ""
+
+    # 渲染模板
+    jinja_template = Template(template_str)
+    rendered_text = jinja_template.render(**params)
+
+    return PromptMessage(
+        role=role,
+        content=[TextPromptMessageContent(data=rendered_text)]
+    )
+
+