import type { AggregatedResult } from '@jest/test-result'
import type { CoverageMap } from 'istanbul-lib-coverage'
import type { CoverageSummary, TestResults } from 'test-progress-tracker'

export function transformTestResults(testResults: AggregatedResult): TestResults | undefined {
	const {
		numFailedTests,
		numFailedTestSuites,
		numPassedTests,
		numPassedTestSuites,
		numTotalTests,
		numTotalTestSuites,
		startTime,
		wasInterrupted,
		coverageMap
	} = testResults

	if (wasInterrupted) return undefined

	if (!numTotalTests) return undefined

	return {
		startTime,
		duration: Date.now() - startTime,
		numFailedTests,
		numFailedTestSuites,
		numPassedTests,
		numPassedTestSuites,
		numTotalTests,
		numTotalTestSuites,
		coverage: transformCoverage(coverageMap)
	}
}

function transformCoverage(coverageMap: CoverageMap | null | undefined) {
	if (!coverageMap) return undefined
	return coverageMap.getCoverageSummary() as any as CoverageSummary
}