#
#  Copyright 2025 The InfiniFlow Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
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#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
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from api.db.db_models import DB, MCPServer
from api.db.services.common_service import CommonService


class MCPServerService(CommonService):
    """Service class for managing MCP server related database operations.

    This class extends CommonService to provide specialized functionality for MCP server management,
    including MCP server creation, updates, and deletions.

    Attributes:
        model: The MCPServer model class for database operations.
    """

    model = MCPServer

    @classmethod
    @DB.connection_context()
    def get_servers(cls, tenant_id: str, id_list: list[str] | None = None):
        """Retrieve all MCP servers associated with a tenant.

        This method fetches all MCP servers for a given tenant, ordered by creation time.
        It only includes fields for list display.

        Args:
            tenant_id (str): The unique identifier of the tenant.
            id_list (list[str]): Get servers by ID list. Will ignore this condition if None.

        Returns:
            list[dict]: List of MCP server dictionaries containing MCP server details.
                       Returns None if no MCP servers are found.
        """
        fields = [
            cls.model.id, cls.model.name, cls.model.server_type, cls.model.url, cls.model.description, 
            cls.model.variables, cls.model.update_date
        ]

        servers = cls.model.select(*fields).order_by(cls.model.create_time.desc()).where(cls.model.tenant_id == tenant_id)

        if id_list is not None:
            servers = servers.where(cls.model.id.in_(id_list))

        servers = list(servers.dicts())
        if not servers:
            return None
        return servers