use std::sync::Arc;
// tools/write.rs — Write file contents

use anyhow::{Context, Result};
use serde::Deserialize;

pub fn tool() -> super::Tool {
    super::Tool {
        name: "write_file",
        description: "Create or overwrite a file with the given content.",
        parameters_json: r#"{"type":"object","properties":{"file_path":{"type":"string","description":"Absolute path to write"},"content":{"type":"string","description":"File content"}},"required":["file_path","content"]}"#,
        handler: Arc::new(|_a, v| Box::pin(async move { write_file(&v) })),
    }
}

#[derive(Deserialize)]
struct Args { file_path: String, content: String }

fn write_file(args: &serde_json::Value) -> Result<String> {
    let a: Args = serde_json::from_value(args.clone()).context("invalid write_file arguments")?;
    if let Some(parent) = std::path::Path::new(&a.file_path).parent() {
        std::fs::create_dir_all(parent).ok();
    }
    std::fs::write(&a.file_path, &a.content)
        .with_context(|| format!("Failed to write {}", a.file_path))?;
    Ok(format!("Wrote {} bytes to {}", a.content.len(), a.file_path))
}