use crate::http::context::{AppContext, OpenApiResult, bad_request};
use crate::llm::chat;
use poem_openapi::{Object, OpenApi, Tags, payload::Json};
use serde::Deserialize;
use std::sync::Arc;

#[derive(Deserialize, Object)]
struct ApiKeyPayload {
    api_key: String,
}

#[derive(Tags)]
enum AnthropicTags {
    Anthropic,
}

pub struct AnthropicApi {
    ctx: Arc<AppContext>,
}

impl AnthropicApi {
    pub fn new(ctx: Arc<AppContext>) -> Self {
        Self { ctx }
    }
}

#[OpenApi(tag = "AnthropicTags::Anthropic")]
impl AnthropicApi {
    /// Check whether an Anthropic API key is stored.
    ///
    /// Returns `true` if a non-empty key is present, otherwise `false`.
    #[oai(path = "/anthropic/key/exists", method = "get")]
    async fn get_anthropic_api_key_exists(&self) -> OpenApiResult<Json<bool>> {
        let exists =
            chat::get_anthropic_api_key_exists(self.ctx.store.as_ref()).map_err(bad_request)?;
        Ok(Json(exists))
    }

    /// Store or update the Anthropic API key used for requests.
    ///
    /// Returns `true` when the key is saved successfully.
    #[oai(path = "/anthropic/key", method = "post")]
    async fn set_anthropic_api_key(
        &self,
        payload: Json<ApiKeyPayload>,
    ) -> OpenApiResult<Json<bool>> {
        chat::set_anthropic_api_key(self.ctx.store.as_ref(), payload.0.api_key)
            .map_err(bad_request)?;
        Ok(Json(true))
    }
}