webstreamr/src/utils/StreamResolver.ts

118 lines
3.6 KiB
TypeScript

import { Stream } from 'stremio-addon-sdk';
import { flag } from 'country-emoji';
import winston from 'winston';
import bytes from 'bytes';
import { Context, UrlResult } from '../types';
import { Handler } from '../handler';
import { NotFoundError } from '../error';
export class StreamResolver {
private readonly logger: winston.Logger;
constructor(logger: winston.Logger) {
this.logger = logger;
}
readonly resolve = async (ctx: Context, handlers: Handler[], type: string, id: string): Promise<Stream[]> => {
if (handlers.length === 0) {
return [{
name: 'WebStreamr',
title: '⚠️ No handlers found. Please re-configure the plugin.',
ytId: 'E4WlUXrJgy4',
}];
}
const streams: Stream[] = [];
const urlResults: UrlResult[] = [];
const handlerPromises = handlers.map(async (handler) => {
if (!handler.contentTypes.includes(type)) {
return;
}
try {
const handlerUrlResults = await handler.handle(ctx, type, id);
this.logger.info(`${handler.id} returned ${handlerUrlResults.length} urls`, ctx);
urlResults.push(...(handlerUrlResults.filter(handlerUrlResult => handlerUrlResult !== undefined)));
} catch (err) {
if (err instanceof NotFoundError) {
return;
}
streams.push({
name: 'WebStreamr',
title: `❌ Error with handler "${handler.id}". Please create an issue if this persists. Request-id: ${ctx.id}`,
ytId: 'E4WlUXrJgy4',
});
this.logger.error(`${handler.id} error: ${err}`, ctx);
}
});
await Promise.all(handlerPromises);
urlResults.sort((a, b) => {
const heightComparison = (b.meta.height ?? 0) - (a.meta.height ?? 0);
if (heightComparison !== 0) {
return heightComparison;
}
const bytesComparison = (b.meta.bytes ?? 0) - (a.meta.bytes ?? 0);
if (bytesComparison !== 0) {
return bytesComparison;
}
return a.label.localeCompare(b.label);
});
this.logger.info(`Return ${urlResults.length} streams`, ctx);
streams.push(
...urlResults.map((urlResult) => {
let name = 'WebStreamr';
if (urlResult.meta.countryCode) {
name += ` ${flag(urlResult.meta.countryCode)}`;
}
if (urlResult.meta.height) {
name += ` ${urlResult.meta.height}p`;
}
if (urlResult.isExternal) {
name += ` external`;
}
const titleSecondLineEntries: string[] = [];
if (urlResult.meta.bytes) {
titleSecondLineEntries.push(`💾 ${bytes.format(urlResult.meta.bytes, { unitSeparator: ' ' })}`);
}
titleSecondLineEntries.push(`⚙️ ${urlResult.label}`);
const titleLines = [];
if (urlResult.meta.title) {
titleLines.push(urlResult.meta.title);
}
titleLines.push(titleSecondLineEntries.join(' '));
if (urlResult.cloudflareChallenge) {
titleLines.push('Request was blocked by Cloudflare.');
}
const title = titleLines.join('\n');
return {
[urlResult.isExternal ? 'externalUrl' : 'url']: urlResult.url.href,
name,
title,
behaviorHints: {
...(urlResult.sourceId && { bingeGroup: `webstreamr-${urlResult.sourceId}` }),
...(urlResult.requestHeaders !== undefined && {
notWebReady: true,
proxyHeaders: { request: urlResult.requestHeaders },
}),
...(urlResult.meta.bytes && { videoSize: urlResult.meta.bytes }),
},
};
}),
);
return streams;
};
}