tagOs()
tagIde()
tagCiOrLocal()
addGitMetadata()

void tagOs() {
	gradleEnterprise.buildScan.tag System.getProperty('os.name')
}

void tagIde() {
	if (System.getProperty('idea.version')) {
		gradleEnterprise.buildScan.tag 'IntelliJ IDEA'
	} else if (System.getProperty('eclipse.buildId')) {
		gradleEnterprise.buildScan.tag 'Eclipse'
	}
}

void tagCiOrLocal() {
	gradleEnterprise.buildScan.tag(isCi() ? 'CI' : 'LOCAL')
}

void addGitMetadata() {
	gradleEnterprise.buildScan.background {
		def gitCommitId = execAndGetStdout('git', 'rev-parse', '--short=8', '--verify', 'HEAD')
		def gitBranchName = execAndGetStdout('git', 'rev-parse', '--abbrev-ref', 'HEAD')
		def gitStatus = execAndGetStdout('git', 'status', '--porcelain')

		if(gitCommitId) {
			def commitIdLabel = 'Git Commit ID'
			value commitIdLabel, gitCommitId
			link 'Git commit build scans', customValueSearchUrl([(commitIdLabel): gitCommitId])
		}
		if (gitBranchName) {
			tag gitBranchName
			value 'Git branch', gitBranchName
		}
		if (gitStatus) {
			tag 'dirty'
			value 'Git status', gitStatus
		}
	}
}

boolean isCi() {
	System.getenv('CI')
}

String execAndGetStdout(String... args) {
	def stdout = new ByteArrayOutputStream()
	exec {
		commandLine(args)
		standardOutput = stdout
	}
	return stdout.toString().trim()
}

String customValueSearchUrl(Map<String, String> search) {
	def query = search.collect { name, value ->
		"search.names=${encodeURL(name)}&search.values=${encodeURL(value)}"
	}.join('&')

	"$gradleEnterprise.buildScan.server/scans?$query"
}

String encodeURL(String url) {
	URLEncoder.encode(url, 'UTF-8')
}