const fs = require('fs');

const path = require('path');

const util = require('./ci-util');

const task = process.argv[2];

// during CI agent checks out a commit, not a branch.

// $(build.sourceBranch) indicates the branch name, e.g. releases/m108

// assumes user has checked out a branch. this is a fairly safe assumption.

// this code only runs during "package" and "publish" build targets, which is not typically run locally.

const branch = process.env.TF_BUILD ? process.env.BUILD_SOURCEBRANCH : util.run('git symbolic-ref HEAD');

const commitInfo = util.run('git log -1 --format=oneline');

// create the script

fs.mkdirSync(util.hotfixLayoutPath);

console.log(`Creating ${util.hotfixLayoutPath}`)

const scriptPath = path.join(util.hotfixLayoutPath, 'hotfix.ps1');

const scriptContent = `

# Hotfix created from branch: ${branch}

# Commit: ${commitInfo}

# Hotfixing tasks: ${task}

$ErrorActionPreference='Stop'

Update-DistributedTaskDefinitions -TaskZip $PSScriptRoot/hotfix.zip

`;

console.log(`Writing script into ${scriptPath}`)

fs.writeFileSync(scriptPath, scriptContent);

// copy non-aggregate tasks zip

const zipDestPath = path.join(util.hotfixLayoutPath, 'hotfix.zip');

console.log(`Copy from ${util.tasksZipPath} to ${zipDestPath}`)

fs.copyFileSync(util.tasksZipPath, zipDestPath);