Function BuildDigest

tools/ci-notify/github.go:200–258

BuildDigest builds a digest report for the specified time range

(branch, workflowName string, days int)

// BuildDigest builds a digest report for the specified time range
func BuildDigest(branch, workflowName string, days int) (*DigestReport, error) {
	// Calculate the start date
	endDate := time.Now()
	startDate := endDate.AddDate(0, 0, -days)

	// Fetch workflow runs
	runs, err := GetWorkflowRuns(branch, workflowName, startDate)
	if err != nil {
		return nil, err
	}

	// Filter to only completed runs
	completedRuns := filterCompleted(runs)

	// Count successes and failures
	var successCount, failureCount int
	var durations []time.Duration

	for _, run := range completedRuns {
		switch run.Conclusion {
		case ConclusionSuccess:
			successCount++
		default:
			failureCount++
		}

		if run.Duration > 0 {
			durations = append(durations, run.Duration)
		}
	}

	totalRuns := len(completedRuns)
	successRate := 0.0
	if totalRuns > 0 {
		successRate = (float64(successCount) / float64(totalRuns)) * 100
	}

	// Calculate duration percentiles
	under20 := calculatePercentUnder(durations, 20*time.Minute)
	under25 := calculatePercentUnder(durations, 25*time.Minute)
	under30 := calculatePercentUnder(durations, 30*time.Minute)

	return &DigestReport{
		Branch:                branch,
		WorkflowName:          workflowName,
		StartDate:             startDate,
		EndDate:               endDate,
		TotalRuns:             totalRuns,
		SuccessfulRuns:        successCount,
		FailedRuns:            failureCount,
		SuccessRate:           successRate,
		AverageDuration:       calculateAverage(durations),
		MedianDuration:        calculateMedian(durations),
		Under20MinutesPercent: under20,
		Under25MinutesPercent: under25,
		Under30MinutesPercent: under30,
		Runs:                  completedRuns,
	}, nil