import * as ts from "typescript";
import { DocEntry } from "./types";

export const serializeSymbol = (
  checker: ts.TypeChecker,
  symbol: ts.Symbol
): DocEntry => {
  return {
    name: symbol.getName(),
    documentation: ts.displayPartsToString(
      symbol.getDocumentationComment(checker)
    ),
    type: symbol.valueDeclaration
      ? checker.typeToString(
          checker.getTypeOfSymbolAtLocation(symbol, symbol.valueDeclaration)
        )
      : "any",
  };
};

export function serializeSignature(
  checker: ts.TypeChecker,
  signature: ts.Signature
) {
  return {
    parameters: signature.parameters.map((p) => serializeSymbol(checker, p)),
    returnType: checker.typeToString(signature.getReturnType()),
    documentation: ts.displayPartsToString(
      signature.getDocumentationComment(checker)
    ),
  };
}