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Throw and log errors if manifests cannot be loaded

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This commit is contained in:
RMidhunSuresh 2022-08-10 22:25:56 +05:30
parent ff706e542d
commit 27363b3f63
1 changed files with 22 additions and 7 deletions
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29
src/platform/web/theming/ThemeLoader.ts
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@ -14,12 +14,13 @@ See the License for the specific language governing permissions and
limitations under the License. limitations under the License.
*/ */
import type {ILogItem} from "../../../logging/types";
import type {Platform} from "../Platform.js";
import {RuntimeThemeParser} from "./parsers/RuntimeThemeParser"; import {RuntimeThemeParser} from "./parsers/RuntimeThemeParser";
import type {Variant, ThemeInformation} from "./parsers/types";
import {ColorSchemePreference} from "./parsers/types"; import {ColorSchemePreference} from "./parsers/types";
import {BuiltThemeParser} from "./parsers/BuiltThemeParser"; import {BuiltThemeParser} from "./parsers/BuiltThemeParser";
import type {Variant, ThemeInformation} from "./parsers/types";
import type {ThemeManifest} from "../../types/theme";
import type {ILogItem} from "../../../logging/types";
import type {Platform} from "../Platform.js";
export class ThemeLoader { export class ThemeLoader {
private _platform: Platform; private _platform: Platform;
@ -32,21 +33,31 @@ export class ThemeLoader {
async init(manifestLocations: string[], log?: ILogItem): Promise<void> { async init(manifestLocations: string[], log?: ILogItem): Promise<void> {
await this._platform.logger.wrapOrRun(log, "ThemeLoader.init", async (log) => { await this._platform.logger.wrapOrRun(log, "ThemeLoader.init", async (log) => {
const results = await Promise.all( let noManifestsAvailable = true;
const failedManifestLoads: string[] = [];
const results = await Promise.allSettled(
manifestLocations.map(location => this._platform.request(location, { method: "GET", format: "json", cache: true, }).response()) manifestLocations.map(location => this._platform.request(location, { method: "GET", format: "json", cache: true, }).response())
); );
const runtimeThemeParser = new RuntimeThemeParser(this._platform, this.preferredColorScheme); const runtimeThemeParser = new RuntimeThemeParser(this._platform, this.preferredColorScheme);
const builtThemeParser = new BuiltThemeParser(this.preferredColorScheme); const builtThemeParser = new BuiltThemeParser(this.preferredColorScheme);
const runtimeThemePromises: Promise<void>[] = []; const runtimeThemePromises: Promise<void>[] = [];
for (let i = 0; i < results.length; ++i) { for (let i = 0; i < results.length; ++i) {
const { body } = results[i]; const result = results[i];
if (result.status === "rejected") {
console.error(`Failed to load manifest at ${manifestLocations[i]}, reason: ${result.reason}`);
log.log({ l: "Manifest fetch failed", location: manifestLocations[i], reason: result.reason });
failedManifestLoads.push(manifestLocations[i])
continue;
}
noManifestsAvailable = false;
const { body } = result.value;
try { try {
if (body.extends) { if (body.extends) {
const indexOfBaseManifest = results.findIndex(manifest => manifest.body.id === body.extends); const indexOfBaseManifest = results.findIndex(result => "value" in result && result.value.body.id === body.extends);
if (indexOfBaseManifest === -1) { if (indexOfBaseManifest === -1) {
throw new Error(`Base manifest for derived theme at ${manifestLocations[i]} not found!`); throw new Error(`Base manifest for derived theme at ${manifestLocations[i]} not found!`);
} }
const {body: baseManifest} = results[indexOfBaseManifest]; const { body: baseManifest } = (results[indexOfBaseManifest] as PromiseFulfilledResult<{ body: ThemeManifest }>).value;
const baseManifestLocation = manifestLocations[indexOfBaseManifest]; const baseManifestLocation = manifestLocations[indexOfBaseManifest];
const promise = runtimeThemeParser.parse(body, baseManifest, baseManifestLocation, log); const promise = runtimeThemeParser.parse(body, baseManifest, baseManifestLocation, log);
runtimeThemePromises.push(promise); runtimeThemePromises.push(promise);
@ -59,6 +70,10 @@ export class ThemeLoader {
console.error(e); console.error(e);
} }
} }
if (noManifestsAvailable) {
// We need at least one working theme manifest!
throw new Error(`All configured theme manifests failed to load, the following were tried: ${failedManifestLoads.join(", ")}`);
}
await Promise.all(runtimeThemePromises); await Promise.all(runtimeThemePromises);
this._themeMapping = { ...builtThemeParser.themeMapping, ...runtimeThemeParser.themeMapping }; this._themeMapping = { ...builtThemeParser.themeMapping, ...runtimeThemeParser.themeMapping };
Object.assign(this._themeMapping, builtThemeParser.themeMapping, runtimeThemeParser.themeMapping); Object.assign(this._themeMapping, builtThemeParser.themeMapping, runtimeThemeParser.themeMapping);