package com.capspire.ecm.ot.experimental;

import com.opentext.livelink.oml.OScriptObject;
import java.util.HashMap;
import java.util.Map;

public class JOExperiments {

    private static final Object Undefined = null;
    private static final String OK = "ok";
    private static final String ErrMsg = "ErrMsg";
    private static final String ApiError = "ApiError";
    private static final String Result = "Result";

    public static synchronized Map<String, Object> runSingleThreaded(String scriptPath) {
        Map<String, Object> retVal = new HashMap<String, Object>();
        retVal.put(OK, Boolean.FALSE);
        retVal.put(ErrMsg, Undefined);
        retVal.put(ApiError, Undefined);
        retVal.put(Result, Undefined);

        try {
            if (isNullOrEmpty(scriptPath)) {
                throw new RuntimeException("The scriptPath parameter cannot be null or empty.");
            }
            Object result = OScriptObject.runScript(scriptPath);
            retVal.put(Result, result);
            retVal.put(OK, Boolean.TRUE);
        } catch (Exception e) {
            retVal.put(ErrMsg, e.getLocalizedMessage());
            retVal.put(ApiError, e);
        }
        if (IsNotOk(retVal)) {
            if (IsUndefined(retVal.get(ErrMsg))) {
                retVal.put(ErrMsg, "Unexpected error executing runSingleThreaded. Perhaps you forgot to set OK to true or to provide an ErrMsg value.");
            }
        }

        return retVal;
    }

    private static boolean isNullOrEmpty(Object o) {
        return ((o == null) || (o.toString() == null) || (o.toString().isEmpty()));
    }

    private static boolean IsOk(Object o) {
        Object test;
        if (o instanceof Map) {
            test = ((Map) o).get(OK);
        } else if (o instanceof Boolean) {
            test = o;
        } else {
            throw new RuntimeException(String.format("Expected Boolean or Map, got %s", o.getClass().getName()));
        }
        return (Boolean.TRUE.equals(test));
    }

    private static boolean IsNotOk(Object o) {
        return !IsOk(o);
    }

    private static boolean IsUndefined(Object o) {
        return (o == null);
    }
}