package store

import (
	"strings"
	"time"
)

// Runtime log cleanup actions (runtime_log_cleanup_audit.action).
const (
	RuntimeLogCleanupTruncate = "truncate"
	RuntimeLogCleanupDelete   = "delete"
)

// RuntimeLogFile describes a file in EVOBGP_RUNTIME_LOGS_DIR (API DTO).
type RuntimeLogFile struct {
	Name       string    `json:"name"`
	SizeBytes  int64     `json:"size_bytes"`
	ModifiedAt time.Time `json:"modified_at"`
}

// RuntimeLogTail is a tail/preview fragment of a runtime log file.
type RuntimeLogTail struct {
	Filename      string `json:"filename"`
	Content       string `json:"content"`
	Truncated     bool   `json:"truncated"`
	LinesReturned int    `json:"lines_returned"`
}

// RuntimeLogCleanupAudit is a persisted cleanup operation log entry.
type RuntimeLogCleanupAudit struct {
	ID          string         `json:"id"`
	TenantID    string         `json:"tenant_id"`
	ActorPrefix string         `json:"actor_prefix"`
	Filename    string         `json:"filename"`
	Action      string         `json:"action"`
	SizeBefore  int64          `json:"size_before"`
	SizeAfter   *int64         `json:"size_after,omitempty"`
	Detail      map[string]any `json:"detail,omitempty"`
	CreatedAt   time.Time      `json:"created_at"`
}

// ValidRuntimeLogCleanupAction reports whether action is truncate or delete.
func ValidRuntimeLogCleanupAction(action string) bool {
	switch strings.TrimSpace(action) {
	case RuntimeLogCleanupTruncate, RuntimeLogCleanupDelete:
		return true
	default:
		return false
	}
}