from typing import Dict, Any, List, Optional

class DatasetService:
    def __init__(self, http_client):
        self.http_client = http_client
    
    def create_dataset(self, name: str, description: str = None, 
                      embedding_model: str = None, permission: str = None,
                      chunk_method: str = None, parser_config: dict = None) -> Dict[str, Any]:
        endpoint = "/api/v1/datasets"
        
        data = {"name": name}
        if description is not None:
            data["description"] = description
        if embedding_model is not None:
            data["embedding_model"] = embedding_model
        if permission is not None:
            data["permission"] = permission
        if chunk_method is not None:
            data["chunk_method"] = chunk_method
        if parser_config is not None:
            data["parser_config"] = parser_config
        
        response = self.http_client.post(endpoint, json_data=data)
        
        if response.get("code") == 0 and response.get("data"):
            return response["data"]
        else:
            raise Exception(f"创建数据集失败: {response.get('message', '未知错误')}")
    
    def delete_datasets(self, dataset_ids: List[str]) -> bool:
        endpoint = "/api/v1/datasets"
        
        response = self.http_client.delete(endpoint, json_data={"ids": dataset_ids})
        
        if response.get("code") == 0:
            return True
        else:
            raise Exception(f"删除数据集失败: {response.get('message', '未知错误')}")
    
    def update_dataset(self, dataset_id: str, name: str = None, 
                      description: str = None, embedding_model: str = None,
                      permission: str = None, chunk_method: str = None) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}"
        
        data = {}
        if name is not None:
            data["name"] = name
        if description is not None:
            data["description"] = description
        if embedding_model is not None:
            data["embedding_model"] = embedding_model
        if permission is not None:
            data["permission"] = permission
        if chunk_method is not None:
            data["chunk_method"] = chunk_method
        
        response = self.http_client.post(endpoint, json=data)
        
        if response.get("code") == 0 and response.get("data"):
            return response["data"]
        else:
            raise Exception(f"更新数据集失败: {response.get('message', '未知错误')}")
    
    def list_datasets(self, page: int = 1, size: int = 20, orderby: str = "create_time",
                     desc: bool = True, name: str = None, dataset_id: str = None) -> List[Dict[str, Any]]:
        endpoint = "/api/v1/datasets"
        
        params = {"page": page, "page_size": size, "orderby": orderby, "desc": int(desc)}
        if name is not None:
            params["name"] = name
        if dataset_id is not None:
            params["id"] = dataset_id
        
        response = self.http_client.get(endpoint, params=params)
        
        if response.get("code") == 0 and response.get("data"):
            return response["data"]
        elif response.get("code") == 108:
            return None
        else:
            raise Exception(f"列出数据集失败: {response.get('message', '未知错误')}")
    
    def get_dataset(self, dataset_id: str) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}"
        
        response = self.http_client.get(endpoint)
        
        if response.get("code") == 0 and response.get("data"):
            return response["data"]
        else:
            raise Exception(f"获取数据集失败: {response.get('message', '未知错误')}")
    
    def get_knowledge_graph(self, dataset_id: str) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}/knowledge_graph"
        
        response = self.http_client.get(endpoint)
        
        if response.get("code") == 0:
            return response.get("data", {})
        else:
            raise Exception(f"获取知识图谱失败: {response.get('message', '未知错误')}")
    
    def delete_knowledge_graph(self, dataset_id: str) -> bool:
        endpoint = f"/api/v1/datasets/{dataset_id}/knowledge_graph"
        
        response = self.http_client.post(endpoint, json_data={})
        
        if response.get("code") == 0:
            return True
        else:
            raise Exception(f"删除知识图谱失败: {response.get('message', '未知错误')}")
    
    def trace_graphrag(self, dataset_id: str) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}/trace_graphrag"
        
        response = self.http_client.get(endpoint)
        
        if response.get("code") == 0:
            return response.get("data", {})
        else:
            raise Exception(f"获取GraphRAG追踪失败: {response.get('message', '未知错误')}")
    
    def trace_raptor(self, dataset_id: str) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}/trace_raptor"
        
        response = self.http_client.get(endpoint)
        
        if response.get("code") == 0:
            return response.get("data", {})
        else:
            raise Exception(f"获取RAPTOR追踪失败: {response.get('message', '未知错误')}")
    
    def get_metadata_summary(self, dataset_id: str) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}/metadata/summary"
        
        response = self.http_client.get(endpoint)
        
        if response.get("code") == 0:
            return response.get("data", {})
        else:
            raise Exception(f"获取元数据摘要失败: {response.get('message', '未知错误')}")
    
    def update_metadata(self, dataset_id: str, metadata: Dict = None,
                       document_ids: List[str] = None, metadata_condition: Dict = None) -> bool:
        endpoint = f"/api/v1/datasets/{dataset_id}/metadata/update"
        
        data = {}
        if metadata is not None:
            data["metadata"] = metadata
        if document_ids is not None:
            data["document_ids"] = document_ids
        if metadata_condition is not None:
            data["metadata_condition"] = metadata_condition
        
        response = self.http_client.post(endpoint, json=data)
        
        if response.get("code") == 0:
            return True
        else:
            raise Exception(f"更新元数据失败: {response.get('message', '未知错误')}")
    
    def run_graphrag(self, dataset_id: str, mode: str = "light") -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}/run_graphrag"
        
        response = self.http_client.post(endpoint, json_data={"mode": mode})
        
        if response.get("code") == 0:
            return response.get("data", {})
        else:
            raise Exception(f"运行GraphRAG失败: {response.get('message', '未知错误')}")
    
    def run_raptor(self, dataset_id: str) -> Dict[str, Any]:
        endpoint = f"/api/v1/datasets/{dataset_id}/run_raptor"
        
        response = self.http_client.post(endpoint)
        
        if response.get("code") == 0:
            return response.get("data", {})
        else:
            raise Exception(f"运行RAPTOR失败: {response.get('message', '未知错误')}")