named stuff properly; added encyclopedia and template

1 files changed, 41 insertions, 0 deletions

diff --git a/src/encyclopedia.rs b/src/encyclopedia.rs
new file mode 100644
index 0000000..17e9857
--- /dev/null
+++ b/src/encyclopedia.rs
@@ -0,0 +1,41 @@
+
+use std::collections::HashMap;
+use serde_json::Value;
+use crate::assemblage::Assemblage;
+use crate::componentwrapper::ComponentWrapper;
+use crate::template::Template;
+
+#[derive(Default)]
+pub struct Encyclopedia {
+	items: HashMap<String, Assemblage>
+}
+
+impl Encyclopedia {
+	
+	pub fn new() -> Encyclopedia {
+		Encyclopedia {
+			items: HashMap::new()
+		}
+	}
+	
+	pub fn from_json(val: Value) -> Result<Encyclopedia, &'static str> {
+		let mut items = HashMap::new();
+		for (k, v) in val.as_object().ok_or("encyclopedia not a json object")?.into_iter() {
+			items.insert(k.clone(), Assemblage::from_json(v)?);
+		}
+		Ok(Encyclopedia{items})
+	}
+	
+	pub fn add_assemblage(&mut self, name: &str, assemblage: Assemblage) -> Result<(), &'static str> {
+		//todo: what if name exists
+		self.items.insert(name.to_string(), assemblage);
+		Ok(())
+	}
+	
+	pub fn construct(&self, template: &Template) -> Result<Vec<ComponentWrapper>, &str> {
+		let assemblage = self.items.get(&template.name).ok_or("unknown assemblage name")?;
+		assemblage.instantiate(&template.args, &template.kwargs)
+	}
+	
+}
+