jdd-context.ts
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jdd-context.ts
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	import {
	FileManager,
	FilePointer,
	PathFilePointer,
	} from "@sealcode/file-manager";
	import type { KoaResponsiveImageRouter } from "koa-responsive-image-router";
	import { marked } from "marked";
	import { FlatTemplatable } from "tempstream";
	import { insert_nbsp } from "./utils/insert_nbsp.js";

	export interface JDDContext {
	render_image: (
	file_id: FilePointer \| string \| null,
	args: Parameters<KoaResponsiveImageRouter["image"]>[1]
	) => FlatTemplatable;
	render_markdown: (markdown: string) => FlatTemplatable;
	encode_file: (photo: FilePointer, persistent: boolean) => Promise<string>;
	decode_file: (token: string) => Promise<PathFilePointer \| null>;
	file_manager: FileManager;
	}

	export const makeSimpleJDDContext: (file_manager: FileManager) => JDDContext = (
	file_manager
	) => ({
	render_image: async (file) => {
	if (typeof file == "string") {
	file = await file_manager.fromToken(file);
	}
	const path = (await file?.getPath()) \|\| "/some-path";
	return file ? /* HTML */ `<img src="file://${path}}" />` : "";
	},
	render_markdown: (string) =>
	string ? marked.parse(insert_nbsp(string)) : "",
	encode_file: (photo: FilePointer, persistent: boolean) => {
	return photo.save(persistent);
	},
	decode_file: (token: string) => {
	return file_manager.fromToken(token);
	},
	file_manager,
	});