// src/agent/runtime/duplicate_detector.rs
//
// 同质调用检测器：检测连续重复的工具调用，防止死循环。

/// 同质调用检测器
#[derive(Debug, Default)]
pub struct DuplicateDetector {
    last_call: Option<(String, String)>, // (tool_name, arguments)
    consecutive_count: usize,
}

impl DuplicateDetector {
    /// 记录一次调用，返回是否检测到死循环
    pub fn record(&mut self, tool_name: &str, arguments: &str, threshold: usize) -> bool {
        let key = (tool_name.to_string(), arguments.to_string());
        if self.last_call.as_ref() == Some(&key) {
            self.consecutive_count += 1;
            if self.consecutive_count >= threshold {
                return true;
            }
        } else {
            self.last_call = Some(key);
            self.consecutive_count = 1;
        }
        false
    }
}