51 lines
1.8 KiB
TypeScript
51 lines
1.8 KiB
TypeScript
|
import { handlebars, markdown, YAML } from "$sb/syscalls.ts";
|
||
|
|
import type { PageMeta } from "$sb/types.ts";
|
||
|
|
import { extractFrontmatter } from "$sb/lib/frontmatter.ts";
|
||
|
|
import { TemplateObject } from "./types.ts";
|
||
|
|
import { renderToText } from "$sb/lib/tree.ts";
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Strips the template from its frontmatter and renders it.
|
||
|
|
* The assumption is that the frontmatter has already been parsed and should not appear in thhe rendered output.
|
||
|
|
* @param templateText the template text
|
||
|
|
* @param data data to be rendered by the template
|
||
|
|
* @param globals a set of global variables
|
||
|
|
* @returns
|
||
|
|
*/
|
||
|
|
export async function renderTemplate(
|
||
|
|
templateText: string,
|
||
|
|
pageMeta: PageMeta,
|
||
|
|
data: any = {},
|
||
|
|
): Promise<string> {
|
||
|
|
const tree = await markdown.parseMarkdown(templateText);
|
||
|
|
const frontmatter: Partial<TemplateObject> = await extractFrontmatter(tree, {
|
||
|
|
removeFrontmatterSection: true,
|
||
|
|
removeTags: ["template"],
|
||
|
|
});
|
||
|
|
templateText = renderToText(tree).trimStart();
|
||
|
|
// If a 'frontmatter' key was specified in the frontmatter, use that as the frontmatter
|
||
|
|
if (frontmatter.frontmatter) {
|
||
|
|
if (typeof frontmatter.frontmatter === "string") {
|
||
|
|
templateText = "---\n" + frontmatter.frontmatter + "---\n" + templateText;
|
||
|
|
} else {
|
||
|
|
templateText = "---\n" + (await YAML.stringify(frontmatter.frontmatter)) +
|
||
|
|
"---\n" + templateText;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return handlebars.renderTemplate(templateText, data, { page: pageMeta });
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Strips a template text from its frontmatter and #template tag
|
||
|
|
*/
|
||
|
|
export async function cleanTemplate(
|
||
|
|
templateText: string,
|
||
|
|
): Promise<string> {
|
||
|
|
const tree = await markdown.parseMarkdown(templateText);
|
||
|
|
await extractFrontmatter(tree, {
|
||
|
|
removeFrontmatterSection: true,
|
||
|
|
removeTags: ["template"],
|
||
|
|
});
|
||
|
|
return renderToText(tree).trimStart();
|
||
|
|
}
|