//! Web fetch tool

use async_trait::async_trait;
use serde_json::{json, Value};
use zclaw_types::{Result, ZclawError};

use crate::tool::{Tool, ToolContext};

pub struct WebFetchTool;

impl WebFetchTool {
    pub fn new() -> Self {
        Self
    }
}

#[async_trait]
impl Tool for WebFetchTool {
    fn name(&self) -> &str {
        "web_fetch"
    }

    fn description(&self) -> &str {
        "Fetch content from a URL"
    }

    fn input_schema(&self) -> Value {
        json!({
            "type": "object",
            "properties": {
                "url": {
                    "type": "string",
                    "description": "The URL to fetch"
                },
                "method": {
                    "type": "string",
                    "enum": ["GET", "POST"],
                    "description": "HTTP method (default: GET)"
                }
            },
            "required": ["url"]
        })
    }

    async fn execute(&self, input: Value, _context: &ToolContext) -> Result<Value> {
        let url = input["url"].as_str()
            .ok_or_else(|| ZclawError::InvalidInput("Missing 'url' parameter".into()))?;

        // TODO: Implement actual web fetching with SSRF protection
        Ok(json!({
            "status": 200,
            "content": format!("Fetched content placeholder for: {}", url)
        }))
    }
}

impl Default for WebFetchTool {
    fn default() -> Self {
        Self::new()
    }
}