120 lines
3.1 KiB
TypeScript
120 lines
3.1 KiB
TypeScript
import Handlebars from "handlebars";
|
|
import * as YAML from "yaml";
|
|
|
|
import { space } from "$sb/silverbullet-syscall/mod.ts";
|
|
import { niceDate } from "$sb/lib/dates.ts";
|
|
|
|
const maxWidth = 70;
|
|
|
|
export function defaultJsonTransformer(_k: string, v: any) {
|
|
if (v === undefined) {
|
|
return "";
|
|
}
|
|
return "" + v;
|
|
}
|
|
|
|
// Nicely format an array of JSON objects as a Markdown table
|
|
export function jsonToMDTable(
|
|
jsonArray: any[],
|
|
valueTransformer: (k: string, v: any) => string = defaultJsonTransformer,
|
|
): string {
|
|
const fieldWidths = new Map<string, number>();
|
|
for (const entry of jsonArray) {
|
|
for (const k of Object.keys(entry)) {
|
|
let fieldWidth = fieldWidths.get(k);
|
|
if (!fieldWidth) {
|
|
fieldWidth = valueTransformer(k, entry[k]).length;
|
|
} else {
|
|
fieldWidth = Math.max(valueTransformer(k, entry[k]).length, fieldWidth);
|
|
}
|
|
fieldWidths.set(k, fieldWidth);
|
|
}
|
|
}
|
|
|
|
let fullWidth = 0;
|
|
for (const v of fieldWidths.values()) {
|
|
fullWidth += v + 1;
|
|
}
|
|
|
|
const headerList = [...fieldWidths.keys()];
|
|
const lines = [];
|
|
lines.push(
|
|
"|" +
|
|
headerList
|
|
.map(
|
|
(headerName) =>
|
|
headerName +
|
|
charPad(" ", fieldWidths.get(headerName)! - headerName.length),
|
|
)
|
|
.join("|") +
|
|
"|",
|
|
);
|
|
lines.push(
|
|
"|" +
|
|
headerList
|
|
.map((title) => charPad("-", fieldWidths.get(title)!))
|
|
.join("|") +
|
|
"|",
|
|
);
|
|
for (const val of jsonArray) {
|
|
const el = [];
|
|
for (const prop of headerList) {
|
|
const s = valueTransformer(prop, val[prop]);
|
|
el.push(s + charPad(" ", fieldWidths.get(prop)! - s.length));
|
|
}
|
|
lines.push("|" + el.join("|") + "|");
|
|
}
|
|
return lines.join("\n");
|
|
|
|
function charPad(ch: string, length: number) {
|
|
if (fullWidth > maxWidth && ch === "") {
|
|
return "";
|
|
} else if (fullWidth > maxWidth && ch === "-") {
|
|
return "--";
|
|
}
|
|
if (length < 1) {
|
|
return "";
|
|
}
|
|
return new Array(length + 1).join(ch);
|
|
}
|
|
}
|
|
|
|
export async function renderTemplate(
|
|
renderTemplate: string,
|
|
data: any[],
|
|
): Promise<string> {
|
|
Handlebars.registerHelper("json", (v: any) => JSON.stringify(v));
|
|
Handlebars.registerHelper("niceDate", (ts: any) => niceDate(new Date(ts)));
|
|
Handlebars.registerHelper("prefixLines", (v: string, prefix: string) =>
|
|
v
|
|
.split("\n")
|
|
.map((l) => prefix + l)
|
|
.join("\n"));
|
|
|
|
Handlebars.registerHelper(
|
|
"substring",
|
|
(s: string, from: number, to: number, elipsis = "") =>
|
|
s.length > to - from ? s.substring(from, to) + elipsis : s,
|
|
);
|
|
|
|
Handlebars.registerHelper("yaml", (v: any, prefix: string) => {
|
|
if (typeof prefix === "string") {
|
|
let yaml = YAML.stringify(v)
|
|
.split("\n")
|
|
.join("\n" + prefix)
|
|
.trim();
|
|
if (Array.isArray(v)) {
|
|
return "\n" + prefix + yaml;
|
|
} else {
|
|
return yaml;
|
|
}
|
|
} else {
|
|
return YAML.stringify(v).trim();
|
|
}
|
|
});
|
|
let templateText = await space.readPage(renderTemplate);
|
|
templateText = `{{#each .}}\n${templateText}\n{{/each}}`;
|
|
const template = Handlebars.compile(templateText, { noEscape: true });
|
|
return template(data);
|
|
}
|