package domain

import "time"

// ProjectDiagnostics provides a unified view of project health for debugging.
// It aggregates data from operations, CI pipelines, and registry health.
type ProjectDiagnostics struct {
	// ProjectID is the project being diagnosed.
	ProjectID string `json:"project_id"`

	// GeneratedAt is when this diagnostic was generated.
	GeneratedAt time.Time `json:"generated_at"`

	// Summary is a one-line status: "healthy", "degraded", or "unhealthy".
	Summary string `json:"summary"`

	// Issues is a list of detected problems (empty if healthy).
	Issues []DiagnosticIssue `json:"issues,omitempty"`

	// RecentOperations are the last N operations for this project.
	RecentOperations []OperationSummary `json:"recent_operations,omitempty"`

	// CI contains CI/CD pipeline status.
	CI *CIDiagnostics `json:"ci,omitempty"`

	// Registry contains container registry health.
	Registry *RegistryStatus `json:"registry,omitempty"`
}

// DiagnosticIssue represents a detected problem.
type DiagnosticIssue struct {
	// Severity: "error", "warning", "info"
	Severity string `json:"severity"`

	// Source: "operation", "ci", "registry"
	Source string `json:"source"`

	// Message is a human-readable description.
	Message string `json:"message"`

	// Details provides additional context (e.g., error output).
	Details string `json:"details,omitempty"`

	// Timestamp is when the issue occurred.
	Timestamp time.Time `json:"timestamp,omitempty"`
}

// OperationSummary is a condensed view of an operation for diagnostics.
type OperationSummary struct {
	ID          string          `json:"id"`
	Type        OperationType   `json:"type"`
	Status      OperationStatus `json:"status"`
	StartedAt   time.Time       `json:"started_at"`
	DurationMs  int64           `json:"duration_ms,omitempty"`
	Error       string          `json:"error,omitempty"`
	ExternalRef string          `json:"external_ref,omitempty"`
}

// CIDiagnostics contains CI pipeline health information.
type CIDiagnostics struct {
	// Available indicates if CI is configured for this project.
	Available bool `json:"available"`

	// RecentPipelines are the last N pipeline executions.
	RecentPipelines []CIPipelineSummary `json:"recent_pipelines,omitempty"`

	// LastFailure contains details of the most recent failed pipeline.
	LastFailure *CIPipelineFailure `json:"last_failure,omitempty"`
}

// CIPipelineSummary is a condensed view of a pipeline for diagnostics.
type CIPipelineSummary struct {
	Number    int64     `json:"number"`
	Status    string    `json:"status"`
	Branch    string    `json:"branch"`
	Commit    string    `json:"commit"`
	StartedAt time.Time `json:"started_at"`
	Duration  string    `json:"duration,omitempty"`
}

// CIPipelineFailure contains details about a failed pipeline.
type CIPipelineFailure struct {
	Number     int64     `json:"number"`
	FailedStep string    `json:"failed_step"`
	Error      string    `json:"error,omitempty"`
	LogTail    string    `json:"log_tail,omitempty"`
	URL        string    `json:"url,omitempty"`
	Timestamp  time.Time `json:"timestamp"`
}

// DiagnosticsSummary constants.
const (
	DiagnosticsSummaryHealthy   = "healthy"
	DiagnosticsSummaryDegraded  = "degraded"
	DiagnosticsSummaryUnhealthy = "unhealthy"
)

// DiagnosticSeverity constants.
const (
	DiagnosticSeverityError   = "error"
	DiagnosticSeverityWarning = "warning"
	DiagnosticSeverityInfo    = "info"
)

// DiagnosticSource constants.
const (
	DiagnosticSourceOperation = "operation"
	DiagnosticSourceCI        = "ci"
	DiagnosticSourceRegistry  = "registry"
)