image.ts
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image.ts
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	import { toCamelCase } from "js-convert-case";
	import {
	FieldHandler,
	FieldHandlerResult,
	} from "../shared-crud-form-fields.js";

	export const image_handler: FieldHandler<
	FieldHandlerResult,
	Partial<FieldHandlerResult>
	> = async (
	_,
	{ name, is_required },
	importPath,
	{ is_required_expr, fields_var }
	) => {
	const tempname = toCamelCase("prepared-" + name);
	return {
	imports: {
	shared: `import { imageRouter } from "${importPath(
	"src/back/image-router.js"
	)}";
	import { TheFileManager } from "${importPath(
	"src/back/file-manager.js"
	)}";`,
	},
	field: `${name}: new Fields.File(${is_required_expr}, TheFileManager)`,
	controls: `new Controls.Photo(${fields_var}.${name}, imageRouter, {
	label: "${name}",
	})`,
	initial_value_edit: `{old: item.get("${name}")}`,
	pre_edit:
	`const ${tempname} = data.${name}.new \|\| data.${name}.old ` +
	(is_required
	? `; if(!${tempname}){
	throw new Error("Missing field: ${name}")
	}`
	: " \|\| undefined;"),
	pre_create: `const ${tempname} = data.${name}.new \|\| data.${name}.old;
	if(!${tempname}){
	throw new Error("Missing field: ${name}")
	}`,
	fallback_value_sealious: "null",
	sealious_value: () => `${name}: ${tempname}`,
	};
	};