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use anyhow::{anyhow, Context, Result};

pub struct Copy {
    value: serde_json::Value,
}

impl Copy {
    pub fn get_value(&self) -> Result<serde_json::Value> {
        return Ok(self.value.to_owned());
    }
}

impl TryFrom<&serde_json::Value> for Copy {
    type Error = anyhow::Error;
    fn try_from(value: &serde_json::Value) -> Result<Self, Self::Error> {
        if let serde_json::Value::Object(v) = value {
            if !v.contains_key("value") {
                return Err(anyhow!("An @copy must have a 'value' key"));
            }
            return Ok(Copy {
                value: v.get("value").unwrap().to_owned(),
            });
        }
        return Err(anyhow!("An @copy must be an object"));
    }
}