/*
 * Copyright 2015-2017 Atomist Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { TreeNode, GraphNode, FormatInfo, PathExpressionEngine } from "@atomist/rug/tree/PathExpression";
import { ProjectContext } from "@atomist/rug/operations/ProjectEditor";
import { FileImpact } from "./FileImpact";
import { Project } from "./Project";
export { Impact };

/**
 * Represents an impact of a change
 */
interface Impact extends TreeNode {

    /**
     * Project after impact
     *
     * @property {Project} after
     */
    readonly after: Project;

    /**
     * Project before impact
     *
     * @property {Project} before
     */
    readonly before: Project;

    /**
     * Virtual project composed of files changed in this commit
     *
     * @property {Project} changed
     */
    readonly changed: Project;

    /**
     * Children
     *
     * @returns {TreeNode[]}
     */
    children(): TreeNode[];

    /**
     * File impacts in this commit
     *
     * @property {FileImpact[]} files
     */
    readonly files: FileImpact[];

    /**
     * Tags attached to the node
     *
     * @returns {string[]}
     */
    nodeTags(): string[];

    /**
     * Tags attached to the node
     *
     * @returns {string[]}
     */
    nodeType(): string[];

    /**
     * Parent of the impact
     *
     * @property {TreeNode} parent
     */
    readonly parent: TreeNode;

}