package models

import "time"

// TraceSpan 保存通过 OTLP 接收的标准调用链 Span。
type TraceSpan struct {
	ID        uint      `gorm:"primaryKey" json:"id"`
	CreatedAt time.Time `json:"created_at"`

	TraceID          string     `gorm:"type:varchar(32);not null;index;uniqueIndex:uk_trace_span" json:"trace_id"`
	SpanID           string     `gorm:"type:varchar(16);not null;uniqueIndex:uk_trace_span" json:"span_id"`
	ParentSpanID     string     `gorm:"type:varchar(16);index" json:"parent_span_id,omitempty"`
	ServiceName      string     `gorm:"type:varchar(255);not null;index" json:"service_name"`
	OperationName    string     `gorm:"type:varchar(512);not null;index" json:"operation_name"`
	SpanKind         string     `gorm:"type:varchar(20);not null;index" json:"span_kind"`
	StartTime        time.Time  `gorm:"not null;index" json:"start_time"`
	EndTime          time.Time  `gorm:"not null;index" json:"end_time"`
	DurationMs       float64    `gorm:"type:decimal(16,3);not null;default:0" json:"duration_ms"`
	StatusCode       string     `gorm:"type:varchar(20);not null;index" json:"status_code"`
	StatusMessage    string     `gorm:"type:text" json:"status_message,omitempty"`
	BusinessSystemID *uint      `gorm:"index" json:"business_system_id,omitempty"`
	ResourceUID      string     `gorm:"type:varchar(255);index" json:"resource_uid,omitempty"`
	HTTPMethod       string     `gorm:"type:varchar(16);index" json:"http_method,omitempty"`
	HTTPRoute        string     `gorm:"type:varchar(1024)" json:"http_route,omitempty"`
	HTTPStatusCode   int        `gorm:"index" json:"http_status_code,omitempty"`
	Attributes       string     `gorm:"type:jsonb;not null;default:'{}'" json:"attributes"`
	ResourceAttrs    string     `gorm:"type:jsonb;not null;default:'{}'" json:"resource_attributes"`
	IngestedAt       *time.Time `gorm:"index" json:"ingested_at,omitempty"`
}

func (TraceSpan) TableName() string { return "logs_trace_spans" }