use crate::strenum;

strenum! {
	pub enum LinkType {
		Link,
		Mention;
	};
}

pub trait Link : super::Base {
	fn href(&self) -> &str;
	fn rel(&self) -> Option<&str> { None }
	fn media_type(&self) -> Option<&str> { None } // also in obj
	fn name(&self) -> Option<&str> { None }       // also in obj
	fn hreflang(&self) -> Option<&str> { None }
	fn height(&self) -> Option<&str> { None }
	fn width(&self) -> Option<&str> { None }
	fn preview(&self) -> Option<&str> { None }    // also in obj
}

pub trait LinkMut : super::BaseMut {
	fn set_href(&mut self, href: &str) -> &mut Self;
	fn set_rel(&mut self, val: Option<&str>) -> &mut Self;
	fn set_media_type(&mut self, val: Option<&str>) -> &mut Self; // also in obj
	fn set_name(&mut self, val: Option<&str>) -> &mut Self;       // also in obj
	fn set_hreflang(&mut self, val: Option<&str>) -> &mut Self;
	fn set_height(&mut self, val: Option<&str>) -> &mut Self;
	fn set_width(&mut self, val: Option<&str>) -> &mut Self;
	fn set_preview(&mut self, val: Option<&str>) -> &mut Self;    // also in obj
}

impl Link for String {
	fn href(&self) -> &str {
		self
	}
}

impl Link for serde_json::Value {
	// TODO this is unchecked and can panic
	fn href(&self) -> &str {
		match self {
			serde_json::Value::String(x) => x,
			serde_json::Value::Object(map) =>
				map.get("href")
					.unwrap()
					.as_str()
					.unwrap(),
			_ => panic!("invalid value for Link"),

		}
	}

	// ... TODO!
}