// mcp-schema — Output MCP tool definitions as JSON
//
// Claude Code's Python MCP bridge calls this at startup to
// discover available tools. The Rust ToolDef definitions are
// the source of truth.

fn main() {
    use serde_json::json;

    // Map tool names to CLI args + stdin param.
    let cli_map: std::collections::HashMap<&str, (Vec<&str>, Option<&str>)> = [
        ("memory_render",         (vec!["render"],                 None)),
        ("memory_write",          (vec!["write"],                  Some("content"))),
        ("memory_search",         (vec!["graph", "spread"],        None)),
        ("memory_links",          (vec!["graph", "link"],          None)),
        ("memory_link_set",       (vec!["graph", "link-set"],      None)),
        ("memory_link_add",       (vec!["graph", "link-add"],      None)),
        ("memory_used",           (vec!["used"],                   None)),
        ("memory_weight_set",     (vec!["weight-set"],             None)),
        ("memory_rename",         (vec!["node", "rename"],         None)),
        ("memory_query",          (vec!["query"],                  None)),
    ].into_iter().collect();

    let defs = poc_memory::thought::memory::definitions();
    let json_out: Vec<_> = defs.iter().filter_map(|d| {
        let name = &d.function.name;
        let (cli, stdin_param) = cli_map.get(name.as_str())?;
        Some(json!({
            "name": name,
            "description": d.function.description,
            "inputSchema": d.function.parameters,
            "cli": cli,
            "stdin_param": stdin_param,
        }))
    }).collect();

    println!("{}", serde_json::to_string_pretty(&json_out).unwrap());
}