/**
 * Utility methods for registering activities and creating flows.
 * @class FlowExecutorFactory
 * @namespace jibo.flow
 */

    /**
     * Register an activity globally
     * @method jibo.flow#register
     * @param {String} name The PascalCased name for the behavior.
     * @param {String} namespace This behavior's namespace. Pass in a globally unique name for this namesapce.
     * @param {Module} classRef Class reference for the behavior or decorator.
     */

    /**
     * Add all activities
     * @method jibo.flow#registerCore
     * @private
     */

    /**
     * Give the Flow Executor access to the Activity constructors.
     * @param {string} className - Final Class name (e.g. `FlowEvalAsync`)
     * @param {string} [namespace] - Namespace of activity -- `core` if unsupplied.
     * @returns {jibo.flow.ActivityImplementation} - Constructor of the activity or undefined if not found.
     */

    /**
     * Create a runnable flow executor from a flow file import.
     * @method jibo.flow#create
     * @param {String|Function} uri Relative or absolute path to a `.flow` file or module export of flow.
     * @param {FlowExecutorOverrides} [overrides] Options for populating flow globals.
     * @returns {jibo.flow.FlowExecutor}
     */

    /**
     * Create and run a runnable flow from a flow file import.
     * ```
     * const jibo = require('jibo');
     * jibo.init('face', (err) => {
     *   jibo.flow.run('./flows/main', function(status){});
     * });
     *
     * // Other supported APIs
     * jibo.flow.run('./flows/main');
     * jibo.flow.run('./flows/main', (status) => {});
     * const overrides = {};
     * jibo.flow.run('./flows/main', overrides);
     * jibo.flow.run('./flows/main', overrides, (status) => {});
     * ```
     *
     * @method jibo.flow#run
     * @param {String|Function} uri Relative or absolute path to a `.flow` file or module export of flow.
     * @param {Object} [overrides] Used for supplying optional flow globals and setting FlowExecutor options.
     * @param {jibo.bt.Blackboard} [overrides.blackboard] Override the default blackboard object for this flow.
     * @param {Object} [overrides.notepad] Provide your own notepad object instead of the default one.
     * @param {Object} [overrides.blackboard] Provide your own blackboard object instead of the default one shared with behavior trees.
     * @param {Object} [overrides.emitter] Provide your own emitter object instead of the default one shared with behavior trees.
     * @param {String} [overrides.assetPack] The asset pack name to use for loading assets in this tree.
     * @param {boolean} [overrides.stopOnException] Set to true to cause the FlowExecutor to stop in the debugger with an explorable stacktrace.
     * @param {boolean} [overrides.enableLogging] Set to true to cause the FlowExecutor to log an activity trace to the console as it executes.
     * @param {function} onFinishedCallback The callback which gets called when the flow has reached a status of FAILED, SUCCEEDED, or INTERRUPTED.
     * @returns {jibo.flow.FlowExecutor}
     */

    /**
     * Resolve the path in relation to a calleeDirname directory. If the supplied uri is an absolute path, the uri is
     * returned unmodified.
     * @param {String}  calleeDirname The directory name where the uri is relative to.
     * @param {String}  uri The relative or absolute uri to a file in relation to the calleeDirname.
     * @returns {String} The result absolute path.
     * @private
     */