67 lines
1.3 KiB
Rust
67 lines
1.3 KiB
Rust
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pub trait Link {
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fn href(&self) -> &str;
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fn rel(&self) -> Option<&str> { None }
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fn media_type(&self) -> Option<&str> { None } // also in obj
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fn name(&self) -> Option<&str> { None } // also in obj
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fn hreflang(&self) -> Option<&str> { None }
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fn height(&self) -> Option<&str> { None }
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fn width(&self) -> Option<&str> { None }
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fn preview(&self) -> Option<&str> { None } // also in obj
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}
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pub enum LinkedObject<T> {
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Object(T),
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Link(Box<dyn Link>),
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}
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impl<T> LinkedObject<T>
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where
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T : for<'de> serde::Deserialize<'de>,
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{
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pub async fn resolve(self) -> T {
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match self {
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LinkedObject::Object(o) => o,
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LinkedObject::Link(l) =>
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reqwest::get(l.href())
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.await.unwrap()
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.json::<T>()
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.await.unwrap(),
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}
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}
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}
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impl Link for String {
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fn href(&self) -> &str {
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self
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}
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}
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impl Link for serde_json::Value {
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// TODO this is unchecked and can panic
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fn href(&self) -> &str {
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match self {
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serde_json::Value::String(x) => x,
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serde_json::Value::Object(map) =>
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map.get("href")
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.unwrap()
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.as_str()
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.unwrap(),
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_ => panic!("invalid value for Link"),
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}
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}
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// ... TODO!
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}
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impl From<serde_json::Value> for LinkedObject<serde_json::Value> {
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fn from(value: serde_json::Value) -> Self {
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if value.is_string() || value.get("href").is_some() {
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Self::Link(Box::new(value))
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} else {
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Self::Object(value)
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}
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}
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}
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