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61 lines
2.6 KiB
TypeScript
61 lines
2.6 KiB
TypeScript
import type { SettingsPolicy } from './types';
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export interface KeyChanges {
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added: string[];
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changed: string[];
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removed: string[];
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}
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/** What importing a policy file would change, for the preview before applying it. */
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export interface PolicyChangeSummary {
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scopes: KeyChanges;
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features: KeyChanges;
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restrictions: KeyChanges;
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defaults: KeyChanges;
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/** Organisation sections, by name (signature, session...). */
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organisation: KeyChanges;
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/** Other top-level parts (theme policy, plugins, push relays, sidebar apps). */
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other: string[];
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/** Nothing would change. */
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unchanged: boolean;
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}
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const same = (a: unknown, b: unknown) => JSON.stringify(a) === JSON.stringify(b);
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function keyChanges(before: Record<string, unknown> = {}, after: Record<string, unknown> = {}): KeyChanges {
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const out: KeyChanges = { added: [], changed: [], removed: [] };
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for (const key of Object.keys(after)) {
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if (!(key in before)) out.added.push(key);
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else if (!same(before[key], after[key])) out.changed.push(key);
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}
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for (const key of Object.keys(before)) if (!(key in after)) out.removed.push(key);
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return out;
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}
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const empty = (c: KeyChanges) => c.added.length + c.changed.length + c.removed.length === 0;
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/** Compares two complete policies (both as configManager stores them). */
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export function summarizePolicyChange(current: SettingsPolicy, next: SettingsPolicy): PolicyChangeSummary {
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const byId = (policy: SettingsPolicy) => Object.fromEntries((policy.scopes ?? []).map((s) => [s.label ? `${s.label} (${s.id})` : s.id, s]));
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const summary: PolicyChangeSummary = {
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scopes: keyChanges(byId(current), byId(next)),
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features: keyChanges(current.features as unknown as Record<string, unknown>, next.features as unknown as Record<string, unknown>),
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restrictions: keyChanges(current.restrictions, next.restrictions),
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defaults: keyChanges(current.defaults, next.defaults),
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organisation: keyChanges(
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current.organisation as unknown as Record<string, unknown>,
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next.organisation as unknown as Record<string, unknown>,
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),
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other: [],
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unchanged: false,
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};
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const covered = new Set(['scopes', 'features', 'restrictions', 'defaults', 'organisation']);
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for (const key of new Set([...Object.keys(current), ...Object.keys(next)])) {
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if (covered.has(key)) continue;
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if (!same((current as unknown as Record<string, unknown>)[key], (next as unknown as Record<string, unknown>)[key])) summary.other.push(key);
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}
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summary.unchanged = [summary.scopes, summary.features, summary.restrictions, summary.defaults, summary.organisation].every(empty)
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&& summary.other.length === 0;
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return summary;
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}
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