69 lines
2.6 KiB
JavaScript
69 lines
2.6 KiB
JavaScript
// View rendering, template loading, and Handlebars registration helpers.
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const fs = require('fs');
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const path = require('path');
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const Handlebars = require('handlebars');
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const { version: appVersion } = require('#root/package.json');
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const { hasPermission, hasAnyPermission, hasAssignedPermission } = require('#src/rbac');
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const { registerHandlebars } = require('#src/web/handlebars');
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const { getMessageVariant: inferMessageVariant } = require('#src/web/public/js/shared/ui/toast');
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const VIEWS_ROOT = path.join(__dirname, 'views');
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const cache = new Map();
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const SIGNAGE_VIEW_PREFIXES = new Set(['dashboard', 'clients', 'screens', 'playlists', 'slides', 'canvas-sizes', 'templates']);
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registerHandlebars(Handlebars, {
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viewsRoot: VIEWS_ROOT,
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hasPermission: hasPermission,
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hasAnyPermission: hasAnyPermission,
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hasAssignedPermission: hasAssignedPermission
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});
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function resolveTemplatePath(relativePath) {
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const firstSegment = String(relativePath || '').split(/[\\/]/)[0];
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if (SIGNAGE_VIEW_PREFIXES.has(firstSegment)) {
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return path.join(VIEWS_ROOT, 'signage', relativePath);
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}
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return path.join(VIEWS_ROOT, relativePath);
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}
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function loadTemplate(relativePath) {
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const filePath = resolveTemplatePath(relativePath);
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const stat = fs.statSync(filePath);
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const cached = cache.get(filePath);
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if (cached && cached.mtimeMs === stat.mtimeMs) {
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return cached.template;
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}
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const template = Handlebars.compile(fs.readFileSync(filePath, 'utf8'));
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cache.set(filePath, { mtimeMs: stat.mtimeMs, template: template });
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return template;
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}
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function renderView(viewName, context) {
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const viewContext = Object.assign({ stylesheets: [], scripts: [], appVersion: appVersion }, context || {});
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if (!viewContext.messageVariant) {
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viewContext.messageVariant = inferMessageVariant(viewContext.message, 'success');
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}
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const page = loadTemplate(`${viewName}.hbs`);
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const layout = loadTemplate(path.join('shared', 'layout.hbs'));
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const body = page(viewContext);
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return layout(Object.assign({}, viewContext, { body: body }));
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}
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function renderFragment(viewName, context) {
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const viewContext = Object.assign({ stylesheets: [], scripts: [], appVersion: appVersion }, context || {});
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if (!viewContext.messageVariant) {
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viewContext.messageVariant = inferMessageVariant(viewContext.message, 'success');
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}
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const page = loadTemplate(`${viewName}.hbs`);
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const layout = loadTemplate(path.join('shared', 'frame-layout.hbs'));
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const body = page(viewContext);
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return layout(Object.assign({}, viewContext, { body: body }));
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}
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module.exports = {
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renderView,
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renderFragment
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};
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