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/*---------------------------------------------------------------------------------------------

* Copyright (c) Microsoft Corporation. All rights reserved.

* Licensed under the MIT License. See License.txt in the project root for license information.

*--------------------------------------------------------------------------------------------*/

import * as vscode from 'vscode';

import { CreateParamsNew, CreatePullRequestNew } from '../../common/views';

import { openDescription } from '../commands';

import { commands, contexts } from '../common/executeCommands';

import { ITelemetry } from '../common/telemetry';

import { IRequestMessage } from '../common/webview';

import { BaseCreatePullRequestViewProvider, BasePullRequestDataModel } from './createPRViewProvider';

import {

FolderRepositoryManager,

PullRequestDefaults,

} from './folderRepositoryManager';

import { BaseBranchMetadata } from './pullRequestGitHelper';

import { PullRequestModel } from './pullRequestModel';

export class RevertPullRequestViewProvider extends BaseCreatePullRequestViewProvider implements vscode.WebviewViewProvider {

constructor(

telemetry: ITelemetry,

model: BasePullRequestDataModel,

extensionUri: vscode.Uri,

folderRepositoryManager: FolderRepositoryManager,

pullRequestDefaults: PullRequestDefaults,

private readonly pullRequest: PullRequestModel

) {

super(telemetry, model, extensionUri, folderRepositoryManager, pullRequestDefaults, folderRepositoryManager.repository.state.HEAD?.name ?? pullRequest.base.name);

}

protected async getTitleAndDescription(): Promise<{ title: string; description: string; }> {

return {

title: vscode.l10n.t('Revert "{0}"', this.pullRequest.title),

description: vscode.l10n.t('Reverts {0}', `${this.pullRequest.remote.owner}/${this.pullRequest.remote.repositoryName}#${this.pullRequest.number}`)

};

}

protected async detectBaseMetadata(): Promise<BaseBranchMetadata | undefined> {

return {

owner: this.pullRequest.remote.owner,

repositoryName: this.pullRequest.remote.repositoryName,

branch: this.pullRequest.base.name

};

}

protected override getTitleAndDescriptionProvider(_name?: string) {

return undefined;

}

protected override async getCreateParams(): Promise<CreateParamsNew> {

const params = await super.getCreateParams();

params.canModifyBranches = false;

params.actionDetail = vscode.l10n.t('Reverting');

params.associatedExistingPullRequest = this.pullRequest.number;

return params;

}

private openAssociatedPullRequest() {

return openDescription(this.telemetry, this.pullRequest, undefined, this._folderRepositoryManager, false, true);

}

protected override async _onDidReceiveMessage(message: IRequestMessage<any>) {

const result = await super._onDidReceiveMessage(message);

if (result !== this.MESSAGE_UNHANDLED) {

return;

}

switch (message.command) {

case 'pr.openAssociatedPullRequest':

return this.openAssociatedPullRequest();

default:

// Log error

vscode.window.showErrorMessage('Unsupported webview message');

}

}

protected async create(message: IRequestMessage<CreatePullRequestNew>): Promise<void> {

let revertPr: PullRequestModel | undefined;

RevertPullRequestViewProvider.withProgress(async () => {

commands.setContext(contexts.CREATING, true);

try {

revertPr = await this._folderRepositoryManager.revert(this.pullRequest, message.args.title, message.args.body, message.args.draft);

if (revertPr) {

await this.postCreate(message, revertPr);

await openDescription(this.telemetry, revertPr, undefined, this._folderRepositoryManager, true);

}

} catch (e) {

if (!revertPr) {

let errorMessage: string = e.message;

if (errorMessage.startsWith('GraphQL error: ')) {

errorMessage = errorMessage.substring('GraphQL error: '.length);

}

this._throwError(message, errorMessage);

} else {

if ((e as Error).message === 'GraphQL error: ["Pull request Pull request is in unstable status"]') {

// This error can happen if the PR isn't fully created by the time we try to set properties on it. Try again.

await this.postCreate(message, revertPr);

}

// All of these errors occur after the PR is created, so the error is not critical.

vscode.window.showErrorMessage(vscode.l10n.t('There was an error creating the pull request: {0}', (e as Error).message));

}

} finally {

commands.setContext(contexts.CREATING, false);

if (revertPr) {

this._onDone.fire(revertPr);

} else {

await this._replyMessage(message, {});

}

}

});

}

}