//! Delete a file or empty directory.

use crate::tools::{resolve_path, Tool, ToolCtx};
use anyhow::Result;
use serde_json::{json, Value};
use std::fs;

pub struct Delete;

impl Tool for Delete {
    fn name(&self) -> &'static str {
        "delete"
    }

    fn description(&self) -> &'static str {
        "Delete a file or empty directory"
    }

    fn parameters(&self) -> Value {
        json!({
            "type": "object",
            "properties": {
                "path": {
                    "type": "string",
                    "description": "Path to delete (relative to workspace root)"
                },
                "reason": {
                    "type": "string",
                    "description": "Reason for deletion"
                }
            },
            "required": ["path"]
        })
    }

    fn run(&self, ctx: &ToolCtx, args: &Value) -> Result<String> {
        let rel = crate::tools::arg_str(args, "path")?;
        let path = resolve_path(&ctx.workspaces, &rel)?;

        if !path.exists() {
            anyhow::bail!("path '{rel}' does not exist");
        }

        if path.is_file() {
            fs::remove_file(&path)?;
            Ok(format!("Deleted file '{rel}'"))
        } else if path.is_dir() {
            fs::remove_dir_all(&path)?;
            Ok(format!("Deleted directory '{rel}' and all contents"))
        } else {
            anyhow::bail!("'{rel}' is neither a file nor a directory")
        }
    }
}