// nazarick-core/src/llm/traits.rs

use crate::types::Result;
use crate::llm::types::{LlmRequest, LlmResponse};

#[derive(Debug, Clone, PartialEq)]
pub enum SkillFormat {
    /// XML-Tags — für lokale Modelle ohne Function Calling
    Xml,
    /// Native Tool Use — Ollama, Mistral API, OpenRouter
    ToolUse,
    /// Skills deaktiviert
    None,
}

impl SkillFormat {
    /// Parsed aus config.toml String
    pub fn from_str(s: &str) -> Self {
        match s {
            "tool_use" => Self::ToolUse,
            "none"     => Self::None,
            _          => Self::Xml,  // default
        }
    }
}

#[async_trait::async_trait]
pub trait LlmProvider: Send + Sync {
    async fn complete(&self, request: LlmRequest) -> Result<LlmResponse>;
    fn name(&self) -> &str;
    fn skill_format(&self) -> SkillFormat {
        SkillFormat::Xml
    }
}