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import {
NodePyATVDeviceState,
NodePyATVExecutableType,
NodePyATVFindAndInstanceOptions,
NodePyATVInstanceOptions,
NodePyATVInternalState,
NodePyATVMediaType, NodePyATVPowerState, NodePyATVRepeatState, NodePyATVShuffleState,
NodePyATVState
} from './types';
import {ChildProcess, spawn, SpawnOptions} from 'child_process';
import {FakeChildProcess} from './fake-spawn';
const requestIds: string[] = [];
export function addRequestId(): string {
let id = '?';
for (let i = 0; i < 1000; i += 1) {
id = Math.round(Math.random() * (i + 6) * 36).toString(36).toUpperCase();
if (!requestIds.includes(id)) {
requestIds.push(id);
break;
}
}
return id;
}
export function removeRequestId(id: string | undefined): void {
if (id && requestIds.includes(id)) {
requestIds.splice(requestIds.indexOf(id), 1);
}
}
export function debug(id: string, message: string, options: NodePyATVInstanceOptions): void {
if (options.debug) {
const log = typeof options.debug === 'function' ? options.debug : console.log;
const enableColors = !process.env.NO_COLOR && !options.noColors;
const parts = [
enableColors ? '\x1b[0m' : '', // Color Reset
enableColors ? '\x1b[90m' : '', // Grey
'[node-pyatv][',
enableColors ? '\x1b[37m' : '', // Light Grey
id,
enableColors ? '\x1b[90m' : '', // Grey
'] ',
enableColors ? '\x1b[0m' : '', // Color Reset
message
];
log.apply(null, [parts.join('')]);
}
}
export function getExecutable(executable: NodePyATVExecutableType, options: NodePyATVInstanceOptions): string {
if (executable === NodePyATVExecutableType.atvremote && typeof options.atvremotePath === 'string') {
return options.atvremotePath;
}
else if (executable === NodePyATVExecutableType.atvscript && typeof options.atvscriptPath === 'string') {
return options.atvscriptPath;
}
else {
return executable;
}
}
export function execute(
requestId: string,
executableType: NodePyATVExecutableType,
parameters: string[],
options: NodePyATVInstanceOptions
): ChildProcess | FakeChildProcess {
const executable = getExecutable(executableType, options);
const mySpawn: ((command: string, args: Array<string>, options: SpawnOptions) => (ChildProcess | FakeChildProcess)) = typeof options.spawn === 'function' ? options.spawn : spawn;
debug(requestId, `${executable} ${parameters.join(' ')}`, options);
const child = mySpawn(executable, parameters, {
env: process.env
});
/* eslint-disable @typescript-eslint/no-explicit-any*/
const onStdOut = (data: any) => debug(requestId, `stdout: ${String(data).trim()}`, options);
const onStdErr = (data: any) => debug(requestId, `stderr: ${String(data).trim()}`, options);
const onError = (data: any) => debug(requestId, `error: ${String(data).trim()}`, options);
/* eslint-enable @typescript-eslint/no-explicit-any*/
const onClose = (code: number) => {
debug(requestId, `${executable} exited with code: ${code}`, options);
Eif (child.stdout) {
child.stdout.off('data', onStdOut);
}
Eif (child.stderr) {
child.stderr.off('data', onStdErr);
}
child.off('error', onError);
child.off('close', onClose);
};
Eif (child.stdout) {
child.stdout.on('data', onStdOut);
}
Eif (child.stderr) {
child.stderr.on('data', onStdErr);
}
child.on('error', onError);
child.on('close', onClose);
return child;
}
export async function request(
requestId: string,
executableType: NodePyATVExecutableType,
parameters: string[],
options: NodePyATVInstanceOptions
): Promise<string|Record<string,unknown>> {
const result = {
stdout: '',
stderr: '',
code: 0
};
await new Promise((resolve, reject) => {
const pyatv = execute(requestId, executableType, parameters, options);
/* eslint-disable @typescript-eslint/no-explicit-any*/
const onStdOut = (data: any) => result.stdout += String(data).trim();
const onStdErr = (data: any) => result.stderr += String(data).trim();
const onError = (data: any) => reject(data instanceof Error ? data : new Error(String(data)));
/* eslint-enable @typescript-eslint/no-explicit-any*/
const onClose: (code: number) => void = (code: number) => {
result.code = code;
Eif (pyatv.stdout) {
pyatv.stdout.off('data', onStdOut);
}
Eif (pyatv.stderr) {
pyatv.stderr.off('data', onStdErr);
}
pyatv.off('error', onError);
pyatv.off('close', onClose);
resolve(undefined);
};
Eif (pyatv.stdout) {
pyatv.stdout.on('data', onStdOut);
}
Eif (pyatv.stderr) {
pyatv.stderr.on('data', onStdErr);
}
pyatv.on('error', onError);
pyatv.on('close', onClose);
});
if (result.stderr.length > 0) {
const msg = `Unable to execute request ${requestId}: ${result.stderr}`;
debug(requestId, msg, options);
throw new Error(msg);
}
if (executableType === NodePyATVExecutableType.atvscript) {
try {
return JSON.parse(result.stdout);
}
catch (error) {
const msg = `Unable to parse result ${requestId} json: ${error}`;
debug(requestId, msg, options);
throw new Error(msg);
}
}
return result.stdout;
}
export function getParamters(options: NodePyATVFindAndInstanceOptions = {}): string[] {
const parameters: string[] = [];
if (options.hosts) {
parameters.push('-s', options.hosts.join(','));
}
else if (options.host) {
parameters.push('-s', options.host);
}
if (options.id) {
parameters.push('-i', options.id);
}
if (options.protocol) {
parameters.push('--protocol', options.protocol);
}
if (options.dmapCredentials) {
parameters.push('--dmap-credentials', options.dmapCredentials);
}
if (options.mrpCredentials) {
parameters.push('--mrp-credentials', options.mrpCredentials);
}
if (options.airplayCredentials) {
parameters.push('--airplay-credentials', options.airplayCredentials);
}
return parameters;
}
function parseStateStringAttr(
input: NodePyATVInternalState,
output: NodePyATVState,
inputAttr: ('hash' | 'title' | 'album' | 'artist' | 'genre' | 'app' | 'app_id'),
outputAttr: ('hash' | 'title' | 'album' | 'artist' | 'genre' | 'app' | 'appId'),
d: (msg: string) => void
): void {
if (typeof input[inputAttr] === 'string') {
output[outputAttr] = input[inputAttr] as string;
return;
}
d(`No ${outputAttr} value found in input (${JSON.stringify(input)})`);
}
export function parseState(input: NodePyATVInternalState, id: string, options: NodePyATVInstanceOptions): NodePyATVState {
const d = (msg: string) => debug(id, msg, options);
const result: NodePyATVState = {
dateTime: null,
hash: null,
mediaType: null,
deviceState: null,
title: null,
artist: null,
album: null,
genre: null,
totalTime: null,
position: null,
shuffle: null,
repeat: null,
app: null,
appId: null,
powerState: null
};
if (!input || typeof input !== 'object') {
return result;
}
// datetime
if (typeof input.datetime === 'string') {
const date = new Date(input.datetime);
if (!isNaN(date.getTime())) {
result.dateTime = date;
}
else {
d(`Invalid datetime value ${input.datetime}, ignore attribute`);
}
}
else {
d(`No datetime value found in input (${JSON.stringify(input)})`);
}
// hash
parseStateStringAttr(input, result, 'hash', 'hash', d);
// mediaType
if(typeof input.media_type === 'string') {
const validValues = Object.keys(NodePyATVMediaType).map(o => String(o));
if (validValues.includes(input.media_type)) {
result.mediaType = NodePyATVMediaType[input.media_type as NodePyATVMediaType];
}
else {
d(`Unsupported mediaType value ${input.media_type}, ignore attribute`);
}
} else {
d(`No mediaType value found in input (${JSON.stringify(input)})`);
}
// deviceState
if(typeof input.device_state === 'string') {
const validValues = Object.keys(NodePyATVDeviceState).map(o => String(o));
if (validValues.includes(input.device_state)) {
result.deviceState = NodePyATVDeviceState[input.device_state as NodePyATVDeviceState];
}
else {
d(`Unsupported deviceState value ${input.device_state}, ignore attribute`);
}
} else {
d(`No deviceState value found in input (${JSON.stringify(input)})`);
}
// title
parseStateStringAttr(input, result, 'title', 'title', d);
// artist
parseStateStringAttr(input, result, 'artist', 'artist', d);
// album
parseStateStringAttr(input, result, 'album', 'album', d);
// genre
parseStateStringAttr(input, result, 'genre', 'genre', d);
// totalTime
if (typeof input.total_time === 'number') {
result.totalTime = input.total_time;
}
else {
d(`No totalTime value found in input (${JSON.stringify(input)})`);
}
// position
if (typeof input.position === 'number') {
result.position = input.position;
}
else {
d(`No position value found in input (${JSON.stringify(input)})`);
}
// shuffle
if(typeof input.shuffle === 'string') {
const validValues = Object.keys(NodePyATVShuffleState).map(o => String(o));
if (validValues.includes(input.shuffle)) {
result.shuffle = NodePyATVShuffleState[input.shuffle as NodePyATVShuffleState];
}
else {
d(`Unsupported shuffle value ${input.shuffle}, ignore attribute`);
}
} else {
d(`No shuffle value found in input (${JSON.stringify(input)})`);
}
// repeat
if(typeof input.repeat === 'string') {
const validValues = Object.keys(NodePyATVRepeatState).map(o => String(o));
if (validValues.includes(input.repeat)) {
result.repeat = NodePyATVRepeatState[input.repeat as NodePyATVRepeatState];
}
else {
d(`Unsupported repeat value ${input.repeat}, ignore attribute`);
}
} else {
d(`No repeat value found in input (${JSON.stringify(input)})`);
}
// app
parseStateStringAttr(input, result, 'app', 'app', d);
parseStateStringAttr(input, result, 'app_id', 'appId', d);
// powerState
if(typeof input.power_state === 'string') {
const validValues = Object.keys(NodePyATVPowerState).map(o => String(o));
Eif (validValues.includes(input.power_state)) {
result.powerState = NodePyATVPowerState[input.power_state as NodePyATVPowerState];
}
else {
d(`Unsupported powerState value ${input.power_state}, ignore attribute`);
}
} else {
d(`No powerState value found in input (${JSON.stringify(input)})`);
}
return result;
}
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