typst table creation

komp-app/src/typst.rs

@@ -0,0 +1,48 @@
+pub use common::typst_contract::{TypstContract, TypstContractError};
+use common::proto::komp_ac::document_data::TypstTemplateVersion;
+
+/// Parses the first meaningful declaration from stored Typst source for the
+/// admin mapping workflow. It must be the literal `komp_ac_fields` tuple;
+/// only whitespace and comments may precede it. The server independently runs
+/// the same shared parser before accepting a submitted mapping.
+pub fn parse_contract(source: &str) -> Result<TypstContract, TypstContractError> {
+    common::typst_contract::parse(source)
+}
+
+/// Parses the source carried by an immutable template-version response. Admin
+/// workflows should retain `version.id` separately and send it back when they
+/// submit the reviewed table mapping.
+pub fn parse_template_version(
+    version: &TypstTemplateVersion,
+) -> Result<TypstContract, TypstContractError> {
+    parse_contract(&version.source_code)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{parse_contract, parse_template_version};
+    use common::proto::komp_ac::document_data::TypstTemplateVersion;
+
+    #[test]
+    fn exposes_typst_fields_to_client_workflows() {
+        let contract = parse_contract(
+            r#"#let komp_ac_fields = ("invoice.number", "items[].quantity")"#,
+        )
+        .unwrap();
+
+        assert_eq!(
+            contract.field_paths,
+            ["invoice.number", "items[].quantity"]
+        );
+
+        let version = TypstTemplateVersion {
+            id: 42,
+            source_code: r#"#let komp_ac_fields = ("invoice.number",)"#.to_string(),
+            ..Default::default()
+        };
+        assert_eq!(
+            parse_template_version(&version).unwrap().field_paths,
+            ["invoice.number"]
+        );
+    }
+}