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use std::collections::BTreeSet;

use serde::Deserialize;
use stix::{CommonProperties, Object};

use crate::get_mitre_id;

#[stix::custom_properties(namespace = "mitre")]
#[derive(Default, Deserialize)]
#[serde(default)]
pub struct MitreMalware {
    pub aliases: BTreeSet<String>,
    pub platforms: BTreeSet<String>,
}

#[derive(Deserialize, stix::TypedObject)]
pub struct Malware {
    #[serde(flatten)]
    pub base: stix::Malware,
    #[serde(flatten)]
    pub mitre: MitreMalware,
}

impl Malware {
    pub fn name(&self) -> &str {
        self.base.name()
    }

    pub fn description(&self) -> Option<&str> {
        self.base.description()
    }

    /// Gets the MITRE ID for this tool, such as `S0066`.
    pub fn mitre_id(&self) -> Option<&str> {
        self.external_references().iter().find_map(get_mitre_id)
    }
}

impl AsRef<CommonProperties> for Malware {
    fn as_ref(&self) -> &CommonProperties {
        self.base.as_ref()
    }
}