mermaid-go/pkg/renderer/info.go

// Package renderer provides Info diagram rendering
package renderer

import (
	"fmt"
	"strings"

	"mermaid-go/pkg/ast"
)

// InfoRenderer implements Info diagram rendering
type InfoRenderer struct{}

// NewInfoRenderer creates a new Info renderer
func NewInfoRenderer() *InfoRenderer {
	return &InfoRenderer{}
}

// Render renders an Info diagram to mermaid syntax
func (r *InfoRenderer) Render(diagram *ast.InfoDiagram) (string, error) {
	var result strings.Builder

	// Start with info keyword
	result.WriteString("info\n")

	// Add title if present
	if diagram.Title != nil {
		result.WriteString(fmt.Sprintf("  title %s\n", *diagram.Title))
	}

	// Render groups first
	for _, group := range diagram.Groups {
		result.WriteString(fmt.Sprintf("  group %s\n", group.Label))
		for _, item := range group.Items {
			result.WriteString(fmt.Sprintf("    %s", item.Label))
			if item.Type != "" {
				result.WriteString(fmt.Sprintf(" %s", item.Type))
			}
			if item.Value != nil {
				result.WriteString(fmt.Sprintf(" : %s", *item.Value))
			}
			result.WriteString("\n")
		}
	}

	// Render standalone items
	for _, item := range diagram.Items {
		result.WriteString(fmt.Sprintf("  %s", item.Label))
		if item.Type != "" {
			result.WriteString(fmt.Sprintf(" %s", item.Type))
		}
		if item.Value != nil {
			result.WriteString(fmt.Sprintf(" : %s", *item.Value))
		}
		result.WriteString("\n")
	}

	return result.String(), nil
}