//! The Browser app's viewport (§7.1): the latest screenshot captured by
//! browser.goto, straight from the blob store.

use axum::extract::{Path, State};
use axum::http::{header, StatusCode};
use axum::response::IntoResponse;
use cm_domain::AgentId;

use crate::routes::claws::workspace_agent;
use crate::{ApiError, AppState, Authed};

/// GET /api/claws/{clawId}/browser/viewport.png
pub async fn viewport(
    State(state): State<AppState>,
    Authed(user): Authed,
    Path(claw_id): Path<AgentId>,
) -> Result<impl IntoResponse, ApiError> {
    let agent = workspace_agent(&state, &user, claw_id).await?;
    let key = format!("{}/browser/{}/viewport.png", user.workspace_id, agent.id);
    match state.runtime.blob().get(&key).await {
        Ok(png) => Ok(([(header::CONTENT_TYPE, "image/png")], png).into_response()),
        Err(_) => Ok(StatusCode::NOT_FOUND.into_response()),
    }
}