83 lines
3.3 KiB
TypeScript
83 lines
3.3 KiB
TypeScript
import { CodeWidgetContent } from "$sb/types.ts";
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import { editor, language, markdown, space } from "$sb/syscalls.ts";
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import { extractFrontmatter } from "$sb/lib/frontmatter.ts";
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import { queryObjects } from "./api.ts";
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import { TemplateObject } from "../template/types.ts";
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import { renderTemplate } from "../template/plug_api.ts";
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import { loadPageObject } from "../template/template.ts";
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import { expressionToKvQueryExpression } from "$sb/lib/parse-query.ts";
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import { evalQueryExpression } from "$sb/lib/query.ts";
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import { parseTreeToAST } from "$sb/lib/tree.ts";
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// Somewhat decent looking default template
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const fallbackTemplate = `{{#each .}}
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{{#ifEq @key "tags"}}{{else}}**{{@key}}**: {{.}}
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{{/ifEq}}
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{{/each}}
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{{#if tags}}_Tagged with_ {{#each tags}}#{{.}} {{/each}}{{/if}}`;
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export async function renderFrontmatterWidget(): Promise<
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CodeWidgetContent | null
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> {
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const text = await editor.getText();
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const pageMeta = await loadPageObject(await editor.getCurrentPage());
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const parsedMd = await markdown.parseMarkdown(text);
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const frontmatter = await extractFrontmatter(parsedMd);
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const allFrontMatterTemplates = await queryObjects<TemplateObject>(
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"template",
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{
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filter: ["=", ["attr", "type"], ["string", "frontmatter"]],
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orderBy: [{ expr: ["attr", "priority"], desc: false }],
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},
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);
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let templateText = fallbackTemplate;
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// Strategy: walk through all matching templates, evaluate the 'where' expression, and pick the first one that matches
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for (const template of allFrontMatterTemplates) {
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const exprAST = parseTreeToAST(
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await language.parseLanguage("expression", template.where!),
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);
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const parsedExpression = expressionToKvQueryExpression(exprAST[1]);
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if (evalQueryExpression(parsedExpression, pageMeta)) {
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// Match! We're happy
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templateText = await space.readPage(template.ref);
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break;
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}
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}
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const summaryText = await renderTemplate(
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templateText,
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pageMeta,
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frontmatter,
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);
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// console.log("Rendered", summaryText);
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return {
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markdown: summaryText.text,
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banner: "frontmatter",
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buttons: [
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{
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description: "Reload",
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svg:
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`<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-refresh-cw"><polyline points="23 4 23 10 17 10"></polyline><polyline points="1 20 1 14 7 14"></polyline><path d="M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15"></path></svg>`,
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invokeFunction: "index.refreshWidgets",
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},
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{
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description: "Edit",
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svg:
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`<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-edit"><path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7"></path><path d="M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z"></path></svg>`,
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invokeFunction: "index.editFrontmatter",
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},
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{
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description: "",
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svg: "",
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widgetTarget: true,
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invokeFunction: "index.editFrontmatter",
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},
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],
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};
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}
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export async function editFrontmatter() {
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// 4 = after the frontmatter (--- + newline)
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await editor.moveCursor(4, true);
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}
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