use std::path::PathBuf;

use axum::http::StatusCode;
use axum::response::{IntoResponse, Response};

use crate::db::Db;

#[derive(Clone)]
pub struct AppState {
    pub db: Db,
    /// Canonicalized server root folder.
    pub root: PathBuf,
    /// Whether we sit behind a TLS-terminating reverse proxy.
    pub https: bool,
}

#[derive(Debug, thiserror::Error)]
#[error("{1}")]
pub struct ApiError(pub StatusCode, pub String);

impl ApiError {
    pub fn new(status: StatusCode, msg: impl Into<String>) -> Self {
        Self(status, msg.into())
    }
}

impl IntoResponse for ApiError {
    fn into_response(self) -> Response {
        (
            self.0,
            axum::Json(serde_json::json!({ "error": self.1 })),
        )
            .into_response()
    }
}

impl From<rusqlite::Error> for ApiError {
    fn from(e: rusqlite::Error) -> Self {
        tracing::error!(error = %e, "database error");
        ApiError::new(StatusCode::INTERNAL_SERVER_ERROR, "internal error")
    }
}