import {
    failureOn,
    successOn,
} from "../../action/ActionResult";
import {
    deepLink,
    Issue,
    raiseIssue,
} from "../../util/gitHub";
import {
    GitHubRepoRef,
    isGitHubRepoRef,
} from "../common/GitHubRepoRef";
import { EditorOrReviewerParameters } from "../common/params/BaseEditorOrReviewerParameters";
import { TokenCredentials } from "../common/ProjectOperationCredentials";
import { ReviewRouter } from "./reviewerToCommand";
import {
    ProjectReview,
    ReviewComment,
} from "./ReviewResult";

/**
 * Create an issue from a review, using Markdown
 * @param {ProjectReview} pr
 * @param {AllReposByDefaultParameters} params
 * @param {string} name
 * @return {any}
 */
export const issueRaisingReviewRouter: ReviewRouter<EditorOrReviewerParameters> =
    (pr: ProjectReview, params: EditorOrReviewerParameters, name: string) => {
        if (isGitHubRepoRef(pr.repoId)) {
            const issue = toIssue(pr, name);
            return raiseIssue((params.targets.credentials as TokenCredentials).token, pr.repoId, issue)
                .then(ap => successOn(pr.repoId));
        } else {
            return Promise.resolve(failureOn(pr.repoId, new Error(`Not a GitHub Repo: ${JSON.stringify(pr.repoId)}`)));
        }
    };

function toIssue(pr: ProjectReview, name: string): Issue {
    return {
        title: `${pr.comments.length} problems found by ${name}`,
        body: "Problems:\n\n" + pr.comments.map(c =>
            toMarkdown(pr.repoId as GitHubRepoRef, c)).join("\n"),
    };
}

function toMarkdown(grr: GitHubRepoRef, rc: ReviewComment) {
    return `-\t**${rc.severity}** - ${rc.category}: [${rc.detail}](${deepLink(grr, rc.sourceLocation)})`;
}