from fastapi import APIRouter, FastAPI
from fastapi.responses import JSONResponse

router = APIRouter()

@router.get("/api/schema/manifest")
async def manifest():
    data = {
        "nodes": {
            "DirectoryScanner": {
                "display_name": "目录扫描器",
                "category": "IO/Scanner",
                "description": "扫描目录并输出文件路径列表",
                "icon": "📁",
                "node_type": "input",
                "class_name": "DirectoryScanner",
                "node_logic": "standard",
                "supports_preview": True,
                "inputs": [],
                "outputs": [
                    {"name": "count", "type": "Number", "description": "文件数量"},
                    {"name": "files", "type": "Array<String>", "description": "文件路径列表（数组）"}
                ],
                "param_schema": [
                    {"name": "max_files", "type": "Number", "default": 0, "description": "最大文件数（0=无限制）", "min": 0, "step": 1},
                    {"name": "reverse_sort", "type": "Boolean", "default": False, "description": "反向排序"},
                    {"name": "sort_by", "type": "String", "default": "name", "description": "排序方式", "options": ["name", "size", "modified", "created", "none"]},
                    {"name": "recursive", "type": "Boolean", "default": False, "description": "是否递归扫描子目录"},
                    {"name": "pattern", "type": "String", "default": "*.utrace", "description": "文件匹配模式（支持 glob）", "required": True},
                    {"name": "directory", "type": "String", "default": "", "description": "要扫描的目录（相对于用户目录）", "required": True}
                ],
                "context_vars": {},
                "cache_policy": "none"
            },
            "TraceLoader": {
                "display_name": "Trace Loader",
                "category": "IO/Loader",
                "description": "加载单个 utrace 文件并解析",
                "icon": "📦",
                "node_type": "processor",
                "class_name": "TraceLoader",
                "node_logic": "standard",
                "supports_preview": True,
                "inputs": [{"name": "file", "type": "String"}],
                "outputs": [{"name": "trace", "type": "DataTable"}],
                "param_schema": [{"name": "sampleRate", "type": "Number", "default": 10}],
                "context_vars": {},
                "cache_policy": "none"
            }
        }
    }
    return JSONResponse(content=data)


def register(app: FastAPI):
    app.include_router(router)