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use serde::{Deserialize, Serialize};
use uuid::Uuid;

#[derive(Debug, Serialize, Deserialize, Clone, Copy)]
pub struct Data {
    pub value: i64,
    pub id: Uuid, // Serde does not serialize if element is not public
}

impl Data {
    pub fn new(value: i64) -> Self {
        Data {
            value,
            ..Default::default()
        }
    }
    pub fn update(&mut self, value: i64) {
        self.value = value
    }
}

use std::ops::{AddAssign, SubAssign};
impl SubAssign<i64> for Data {
    fn sub_assign(&mut self, rhs: i64) {
        self.value -= rhs;
    }
}
impl AddAssign<i64> for Data {
    fn add_assign(&mut self, rhs: i64) {
        self.value += rhs
    }
}
use std::fmt::{Display, Formatter, Result};
impl Display for Data {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        write!(f, "Data(value={}, id={})", self.value, self.id)
    }
}
impl PartialEq<i64> for Data {
    fn eq(&self, other: &i64) -> bool {
        self.value == *other
    }
}
impl PartialEq<Data> for i64 {
    fn eq(&self, other: &Data) -> bool {
        *self == other.value
    }
}
impl Default for Data {
    fn default() -> Self {
        let id = Uuid::new_v4();
        let value = 0;
        Data { value, id }
    }
}