From 2ca7834ba02bdedce2071ee407a12203bde84591 Mon Sep 17 00:00:00 2001
From: velvettear <daniel.sommer@velvettear.de>
Date: Thu, 10 Feb 2022 20:52:02 +0100
Subject: [PATCH] fixed stuff, implemented new endpoint '/info'

---
 README.md         |  5 ++++
 libs/api.js       |  2 ++
 libs/commands.js  | 27 -----------------
 libs/constants.js |  1 +
 libs/info.js      | 75 +++++++++++++++++++++++++++++++++++++++++++++++
 libs/modep.js     |  7 ++---
 6 files changed, 85 insertions(+), 32 deletions(-)
 delete mode 100644 libs/commands.js
 create mode 100644 libs/info.js

diff --git a/README.md b/README.md
index 22f513b..4271c7b 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,11 @@ control your MODEP pedalboard(s) via http requests
 
 ## api
 
+### info
+| url | GET | POST |
+| - | -  | - |
+| /info | get information about the host | |
+
 ### banks
 | url | GET | POST |
 | - | - | - |
diff --git a/libs/api.js b/libs/api.js
index 52b6682..532f0bf 100644
--- a/libs/api.js
+++ b/libs/api.js
@@ -2,6 +2,7 @@ const logger = require('./logger.js');
 const util = require('./util.js');
 const constants = require('./constants.js');
 const modep = require('./modep.js');
+const info = require('./info.js');
 
 const endpoints = new Map();
 
@@ -78,6 +79,7 @@ function setupEndpoints() {
                     );
                 }
             })
+            .then(setEndpoint(constants.API_INFO, { method: info.getHostInfo }))
             .then(function () {
                 logger.debug('setting up ' + endpoints.size + ' endpoints  took ' + util.timeDiff(startTime) + 'ms');
                 resolve();
diff --git a/libs/commands.js b/libs/commands.js
deleted file mode 100644
index 2631a9c..0000000
--- a/libs/commands.js
+++ /dev/null
@@ -1,27 +0,0 @@
-const logger = require('../libs/logger.js');
-const { spawn } = require('child_process')
-
-function execute(endpoint) {
-    if (!endpoint || !endpoint.command) {
-        logger.warn('no command defined');
-        return;
-    }
-    logger.debug('executing command \'' + endpoint.command + '\' with args \'' + endpoint.args + '\'...');
-    var cmd = spawn(endpoint.command, endpoint.args);
-    cmd.stdout.on('data', function(data) {
-        logger.debug(data);
-    });
-    cmd.stderr.on('data', function(data) {
-        logger.error(data);
-    });
-    cmd.on('close', function(code) {
-        logger.debug('command \'' + endpoint.command + '\' with args \'' + endpoint.args + '\' finished with exit code ' + code);
-    });
-    cmd.on('error', function(err) {
-        logger.error('command \'' + endpoint.command + '\' with args \'' + endpoint.args + '\' encountered an error >>> ' + err);
-    });
-}
-
-module.exports = {
-    execute
-}
\ No newline at end of file
diff --git a/libs/constants.js b/libs/constants.js
index 8b40d4f..7606088 100644
--- a/libs/constants.js
+++ b/libs/constants.js
@@ -1,6 +1,7 @@
 exports.HTTP_GET = 'GET';
 exports.HTTP_POST = 'POST';
 
+exports.API_INFO = '/info'
 exports.API_BANKS = '/banks';
 exports.API_PEDALBOARDS = '/pedalboards';
 exports.API_PEDALBOARDS_DEFAULT = '/pedalboards/default';
diff --git a/libs/info.js b/libs/info.js
new file mode 100644
index 0000000..2d6e053
--- /dev/null
+++ b/libs/info.js
@@ -0,0 +1,75 @@
+const logger = require('./logger.js');
+const os = require('os');
+
+function getHostname() {
+    return os.hostname();
+}
+
+function getUptime() {
+    return os.uptime();
+}
+
+function getLoadAverage(index) {
+    var loadAverage = os.loadavg();
+    if (index <= loadAverage.length) {
+        return os[index];
+    }
+    return os.loadavg();
+}
+
+function getArchitecture() {
+    return os.arch;
+}
+
+function getOperatingSystem() {
+    return os.release();
+}
+
+function getPlatform() {
+    return os.platform();
+}
+
+function getKernelVersion() {
+    return os.version();
+}
+
+function getCpuInfo() {
+    return os.cpus();
+}
+
+function getMemoryInfo() {
+    var free = os.freemem();
+    var total = os.totalmem();
+    return {
+        total: total,
+        free: free,
+        used: total - free
+    }
+}
+
+function getHostInfo() {
+    return {
+        hostname: getHostname(),
+        uptime: getUptime(),
+        load: getLoadAverage(),
+        arch: getArchitecture(),
+        os: getOperatingSystem(),
+        platform: getPlatform(),
+        kernel: getKernelVersion(),
+        cpu: getCpuInfo(),
+        memory: getMemoryInfo()
+    }
+}
+
+module.exports = {
+    getHostname,
+    getUptime,
+    getLoadAverage,
+    getArchitecture,
+    getOperatingSystem,
+    getPlatform,
+    getKernelVersion,
+    getCpuInfo,
+    getMemoryInfo,
+    getHostInfo
+}
\ No newline at end of file
diff --git a/libs/modep.js b/libs/modep.js
index 0644df4..c31422c 100644
--- a/libs/modep.js
+++ b/libs/modep.js
@@ -5,12 +5,9 @@ const logger = require('./logger.js');
 const cache = require('./cache.js');
 const path = require('path');
 const fs = require('fs');
-const { spawn } = require('child_process')
+const { spawn } = require('child_process');
 const ttl2jsonld = require('@frogcat/ttl2jsonld').parse;
 
-// TODO: MOVE TO CACHE.JS
-
-
 function reset() {
     return new Promise(function (resolve, reject) {
         util.httpGET(config.modep.host, config.modep.port, '/reset')
@@ -247,7 +244,7 @@ function parseCurrentPedalboard(currentPedalboard) {
                     reject('error: could not determine current pedalboard config file');
                 }
                 // FAKE DATA
-                var file = path.resolve('./dev/' + currentPedalboard.uri.substring(currentPedalboard.uri.lastIndexOf('/') + 1));
+                var file = path.resolve(path.dirname(__dirname) + '/dev/' + currentPedalboard.uri.substring(currentPedalboard.uri.lastIndexOf('/') + 1));
                 // var file = path.resolve(currentPedalboard.uri.replace('file://', ''));
                 fs.readFile(file, function (err, data) {
                     if (err) {