sofos 0.2.3

An interactive AI coding agent for your terminal
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use serde::{Deserialize, Serialize};
use serde_json::Value;

/// MCP Protocol Messages

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JsonRpcRequest {
    pub jsonrpc: String,
    pub id: u64,
    pub method: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub params: Option<Value>,
}

impl JsonRpcRequest {
    pub fn new(id: u64, method: String, params: Option<Value>) -> Self {
        Self {
            jsonrpc: "2.0".to_string(),
            id,
            method,
            params,
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JsonRpcResponse {
    pub jsonrpc: String,
    pub id: u64,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub result: Option<Value>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub error: Option<JsonRpcError>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JsonRpcError {
    pub code: i32,
    pub message: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub data: Option<Value>,
}

/// MCP-specific protocol structures

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct InitializeRequest {
    #[serde(rename = "protocolVersion")]
    pub protocol_version: String,
    pub capabilities: ClientCapabilities,
    #[serde(rename = "clientInfo")]
    pub client_info: ClientInfo,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ClientCapabilities {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub roots: Option<RootsCapability>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub sampling: Option<Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RootsCapability {
    #[serde(rename = "listChanged")]
    pub list_changed: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ClientInfo {
    pub name: String,
    pub version: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct InitializeResult {
    #[serde(rename = "protocolVersion")]
    pub protocol_version: String,
    pub capabilities: ServerCapabilities,
    #[serde(rename = "serverInfo")]
    pub server_info: ServerInfo,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ServerCapabilities {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tools: Option<ToolsCapability>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub prompts: Option<Value>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub resources: Option<Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ToolsCapability {
    #[serde(rename = "listChanged", skip_serializing_if = "Option::is_none")]
    pub list_changed: Option<bool>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ServerInfo {
    pub name: String,
    pub version: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ListToolsResult {
    pub tools: Vec<McpTool>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct McpTool {
    pub name: String,
    pub description: String,
    #[serde(rename = "inputSchema")]
    pub input_schema: Value,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CallToolRequest {
    pub name: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub arguments: Option<Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CallToolResult {
    pub content: Vec<ToolContent>,
    #[serde(rename = "isError", skip_serializing_if = "Option::is_none")]
    pub is_error: Option<bool>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "type")]
pub enum ToolContent {
    #[serde(rename = "text")]
    Text { text: String },
    #[serde(rename = "image")]
    Image {
        data: String,
        #[serde(rename = "mimeType")]
        mime_type: String,
    },
    #[serde(rename = "resource")]
    Resource {
        uri: String,
        #[serde(rename = "mimeType")]
        mime_type: Option<String>,
        text: Option<String>,
    },
}