/// Functions that extracts Structs to be used in warp routines
use crate::schema::{AuthRequest, Block, Db, Transaction};
use std::convert::Infallible;
use warp::{Filter, Rejection};

/// Wraps the database to be used in warp routes
pub fn with_db(db: Db) -> impl Filter<Extract = (Db,), Error = Infallible> + Clone {
    warp::any().map(move || db.clone())
}

/// Extracts an `AuthRequest` JSON body from the request
/// Accepts only JSON encoded `AuthRequest` body and rejects big payloads
///
// TODO: find a good limit for this, (=e2482057; 8 char String + rsa pem) <11-04-21, yigit> //
pub fn auth_request_json_body() -> impl Filter<Extract = (AuthRequest,), Error = Rejection> + Clone
{
    warp::body::content_length_limit(1024 * 32).and(warp::body::json())
}

/// Extracts an `Transaction` JSON body from the request
/// Accepts only JSON encoded `Transaction` body and rejects big payloads
// TODO: find a good limit for this <11-04-21, yigit> //
pub fn transaction_json_body() -> impl Filter<Extract = (Transaction,), Error = Rejection> + Clone {
    warp::body::content_length_limit(1024 * 32).and(warp::body::json())
}

/// Extracts the value of the `Authorization` header field, hopefully a valid JWT
/// Used in Authorization for `Block` and `Transaction` proposals
/// Rejects the request if the Authorization header does not exist
pub fn auth_header() -> impl Filter<Extract = (String,), Error = Rejection> + Clone {
    warp::header::header::<String>("Authorization")
}

/// Extracts an `Block` JSON body from the request
/// Accepts only JSON encoded `Block` body and rejects big payloads
// TODO: find a good limit for this <11-04-21, yigit> //
pub fn block_json_body() -> impl Filter<Extract = (Block,), Error = Rejection> + Clone {
    warp::body::content_length_limit(1024 * 32).and(warp::body::json())
}