package main

import "strconv"

// getString extracts a string value from content map.
func getString(content map[string]any, key string) string {
	if content == nil {
		return ""
	}
	if v, ok := content[key].(string); ok {
		return v
	}
	return ""
}

// getBool extracts a bool value from content map (handles JSON unmarshalling forms).
func getBool(content map[string]any, key string, defaultVal bool) bool {
	if content == nil {
		return defaultVal
	}
	if v, ok := content[key].(bool); ok {
		return v
	}
	if v, ok := content[key].(string); ok {
		if b, err := strconv.ParseBool(v); err == nil {
			return b
		}
	}
	return defaultVal
}

// getSlice extracts a slice of maps from content.
func getSlice(content map[string]any, key string) []map[string]any {
	if content == nil {
		return nil
	}
	if v, ok := content[key].([]any); ok {
		result := make([]map[string]any, 0, len(v))
		for _, item := range v {
			if m, ok := item.(map[string]any); ok {
				result = append(result, m)
			}
		}
		return result
	}
	return nil
}

// getNested extracts a nested map from content for sub-object fields (e.g. CTA link).
func getNested(content map[string]any, key string) map[string]any {
	if content == nil {
		return nil
	}
	if v, ok := content[key].(map[string]any); ok {
		return v
	}
	return nil
}

// linkHref returns the href value from a link object (label/href shape),
// defaulting to "#" when missing so anchors stay valid.
func linkHref(link map[string]any) string {
	if href := getString(link, "href"); href != "" {
		return href
	}
	if url := getString(link, "url"); url != "" {
		return url
	}
	return "#"
}

// linkLabel returns the visible label for a link object.
func linkLabel(link map[string]any, fallback string) string {
	if label := getString(link, "label"); label != "" {
		return label
	}
	if text := getString(link, "text"); text != "" {
		return text
	}
	return fallback
}