use serde::Deserialize;

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DidDocument {
    #[serde(default, rename = "@context")]
    pub context: Vec<String>,
    pub id: String,
    /// Ordered set (no duplicates) of aliases and names for this account, in the form of URIs
    pub also_known_as: Option<Vec<String>>,
    pub service: Option<Vec<DidService>>,
    pub verification_method: Option<Vec<DidVerificationMethod>>,
}

impl DidDocument {
    pub fn find_service_by_id(&self, service: &str) -> Option<&DidService> {
        self.service
            .as_ref()
            .and_then(|services| services.iter().find(|s| s.id == service))
    }

    pub fn find_verif_method_by_type(&self, ty: &str) -> Option<&DidVerificationMethod> {
        self.verification_method
            .as_ref()
            .and_then(|methods| methods.iter().find(|m| m.ty == ty))
    }
}

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DidService {
    pub id: String,
    #[serde(rename = "type")]
    pub ty: String,
    pub service_endpoint: String,
}

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DidVerificationMethod {
    pub id: String,
    #[serde(rename = "type")]
    pub ty: String,
    pub controller: String,
    pub public_key_multibase: String,
}