windjammer-mcp 0.36.1

//! Find the definition of a symbol

use crate::error::{McpError, McpResult};
use crate::protocol::{Position, Range, ToolCallResult};
use crate::tools::text_response;
use serde::{Deserialize, Serialize};
use serde_json::Value;
use std::sync::Arc;
use tokio::sync::Mutex;
use windjammer_lsp::database::WindjammerDatabase;

#[derive(Debug, Deserialize)]
struct GetDefinitionRequest {
    #[allow(dead_code)]
    file: Option<String>,
    symbol: String,
    #[allow(dead_code)]
    position: Option<Position>,
}

#[derive(Debug, Serialize)]
struct GetDefinitionResponse {
    success: bool,
    #[serde(skip_serializing_if = "Option::is_none")]
    definition: Option<Definition>,
    #[serde(skip_serializing_if = "Option::is_none")]
    error: Option<String>,
}

#[derive(Debug, Serialize)]
struct Definition {
    file: String,
    range: Range,
    signature: String,
}

pub async fn handle(
    _db: Arc<Mutex<WindjammerDatabase>>,
    arguments: Value,
) -> McpResult<ToolCallResult> {
    let request: GetDefinitionRequest =
        serde_json::from_value(arguments).map_err(|e| McpError::ValidationError {
            field: "arguments".to_string(),
            message: e.to_string(),
        })?;

    // TODO: Implement actual symbol resolution using LSP database
    // For now, return a placeholder
    let response = GetDefinitionResponse {
        success: false,
        definition: None,
        error: Some(format!(
            "Symbol '{}' not found (not yet implemented)",
            request.symbol
        )),
    };

    let response_json =
        serde_json::to_string_pretty(&response).map_err(|e| McpError::InternalError {
            message: format!("Failed to serialize response: {}", e),
        })?;

    Ok(text_response(response_json))
}