jelq

use axum::http::StatusCode;

use serde_json::json;

use super::{

    Outcome, Run,

    balance::{HONEST_TOLERANCE, PUT_GAIN},

};

use crate::problem::Problem;

pub fn round2(x: f64) -> f64 {

    (x * 100.0).round() / 100.0

}

pub(super) fn round3(x: f64) -> f64 {

    (x * 1000.0).round() / 1000.0

}

pub(super) fn honest(claimed: f64, actual: f64) -> bool {

    (claimed - actual).abs() < HONEST_TOLERANCE

}

/// A cylinder whose circumference is the girth.

pub fn volume(length: f64, girth: f64) -> f64 {

    girth * girth * length / (4.0 * std::f64::consts::PI)

}

pub fn shaft(mm: usize) -> String {

    format!("8{}D", "=".repeat(mm.saturating_sub(2)))

}

pub(super) fn exaggeration() -> Problem {

    Problem::new(

        StatusCode::BAD_REQUEST,

        "exaggeration",

        "The server has measured. Lying is not a technique.",

    )

}

impl Run {

    pub fn put(&mut self) -> Outcome {

        if self.body.put_applied {

            return Outcome::empty(StatusCode::NO_CONTENT);

        }

        self.body.put_applied = true;

        self.body.length += PUT_GAIN;

        self.touch();

        Outcome::json(StatusCode::OK, json!({ "detail": "Applied." }))

    }

}