themes-art-deco/heading_override.go

package main

import (
	"bytes"
	"context"
	"strconv"
)

// parseHeadingLevel reads "level" from a content map, defaulting to 2 and clamping to 1..6.
func parseHeadingLevel(content map[string]any) int {
	if v, ok := content["level"].(float64); ok {
		return clampInt(int(v), 1, 6)
	}
	if v, ok := content["level"].(int); ok {
		return clampInt(v, 1, 6)
	}
	if v, ok := content["level"].(string); ok {
		if i, err := strconv.Atoi(v); err == nil {
			return clampInt(i, 1, 6)
		}
	}
	return 2
}

// ArtDecoHeadingBlock overrides the built-in "heading" block when the Art Deco theme is active.
// Content: {"text": "...", "level": 1-6, "textClass": "optional-utility-classes"}
func ArtDecoHeadingBlock(ctx context.Context, content map[string]any) string {
	data := HeadingData{
		Text:      getString(content, "text"),
		Level:     parseHeadingLevel(content),
		ExtraCls:  getString(content, "textClass"),
	}

	var buf bytes.Buffer
	_ = artDecoHeadingComponent(data).Render(ctx, &buf)
	return buf.String()
}

// HeadingData is the typed view for the heading override component.
type HeadingData struct {
	Text     string
	Level    int
	ExtraCls string
}