Add First version

basics.js

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+const fs = require("fs")
+const path = require("path")
+
+
+module.exports.getDate = function (formated) {
+
+    var date = new Date()
+
+    // [Date Format] - Format de la date
+
+    var gmonth = date.getMonth() + 1
+    var gday = date.getDate()
+    var gHour = date.getHours()
+    var gMinute = date.getMinutes()
+    var gSecondes = date.getSeconds()
+
+
+    if(date.getMonth() + 1 < 10) {
+        gmonth = "0" + (date.getMonth() + 1)
+    } 
+
+    if(date.getDate() + 1 <= 10) {
+        gday = "0" + date.getDate()
+    }
+
+    if(date.getHours() + 1 <= 10) {
+        gHour = "0" + date.getHours()
+    }
+
+    if(date.getMinutes() + 1 <= 10) {
+        gMinute = "0" + date.getMinutes()
+    }
+
+    if(date.getSeconds() + 1 <= 10) {
+        gSecondes = "0" + date.getSeconds()
+    }
+
+    if(!formated) {
+        return gday + "/" + gmonth +  " - " + gHour + "h"  + "-" + gMinute + "m" + "-" + gSecondes + "s" 
+    } else {
+        return date.getFullYear() + "-" + gmonth + "-" + gday + "-" + gHour + "h"  + "-" + gMinute + "m" + "-" + gSecondes + "s" 
+        
+    }
+
+    
+}
+
+
+module.exports.getMetricsFile = () => {
+    if(!fs.existsSync(path.join(__dirname, "/metrics.json"))) {
+        fs.writeFileSync(path.join(__dirname, "/metrics.json"), JSON.stringify([], null, 2))
+    } else {
+        return JSON.parse(fs.readFileSync(path.join(__dirname, "/metrics.json")))
+    }
+
+}
+
+module.exports.saveMetricsFile = (data) => {
+    fs.writeFileSync(path.join(__dirname, "/metrics.json"), JSON.stringify(data, null, 2))
+}

main.js

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+//WebMetrik - Web Analytics
+//Git : https://git.raphix.fr/lib/webmetrik
+//Author : Raphix
+
+const basics = require('./basics.js');
+const fs = require('fs');
+
+module.exports.Metric = class {
+    name;
+    description;
+    value;
+    constructor(name, description) {
+        const metricsFile = basics.getMetricsFile();
+        //Check if the metric already exists and set the value and description of the metric
+        if(basics.getMetricsFile().findIndex(x => x.name == name) != -1) {
+            this.name = name;
+            this.description = basics.getMetricsFile()[basics.getMetricsFile().findIndex(x => x.name == name)].description;
+            this.value = basics.getMetricsFile()[basics.getMetricsFile().findIndex(x => x.name == name)].value;
+        } else {
+            this.name = name;
+            this.description = description;
+            this.value = 0;
+
+            //save it to the file
+            basics.saveMetricsFile([...basics.getMetricsFile(), {name: this.name, description: this.description, value: this.value}])
+
+        }
+
+    }
+
+    setValue(value) {
+
+        //get the value of the metric from the file and set it to the value of the metric
+        this.value = basics.getMetricsFile()[basics.getMetricsFile().findIndex(x => x.name == this.name)].value;
+      
+        //save it to the file
+        basics.saveMetricsFile(basics.getMetricsFile().map(x => {
+            if(x.name == this.name) {
+                x.value = value;
+            }
+            return x;
+        }))
+    }
+
+    getValue() {
+        //get the value of the metric from the file and set it to the value of the metric
+        this.value = basics.getMetricsFile()[basics.getMetricsFile().findIndex(x => x.name == this.name)].value;
+        return this.value;
+    }   
+
+    setDescription(description) {
+        //get the value of the metric from the file and set it to the value of the metric
+        this.value = basics.getMetricsFile()[basics.getMetricsFile().findIndex(x => x.name == this.name)].value;
+      
+        //save it to the file
+        basics.saveMetricsFile(basics.getMetricsFile().map(x => {
+            if(x.name == this.name) {
+                x.description = description;
+            }
+            return x;
+        }))
+    }       
+
+    clearMetric() {
+        //delete the metric from the file
+        basics.saveMetricsFile(basics.getMetricsFile().filter(x => x.name != this.name))
+    }
+
+}
+
+
+module.exports.publishMetrics = (port, privateKey) => {
+    const http = require('http');
+    const url = require('url');
+
+    const server = http.createServer((req, res) => {
+        const parsedUrl = url.parse(req.url, true);
+        const pathname = parsedUrl.pathname;
+        const query = parsedUrl.query;
+
+        if(pathname == "/metrics") {
+            if(query.privatekey == privateKey) {
+                res.writeHead(200, {'Content-Type': 'application/json'});
+                res.end(JSON.stringify(basics.getMetricsFile()));
+            } else {
+                res.writeHead(403, {'Content-Type': 'application/json'});
+                res.end(JSON.stringify({error: "Invalid private key"}));
+            }
+        } else {
+            res.writeHead(404, {'Content-Type': 'application/json'});
+            res.end(JSON.stringify({error: "Invalid path"}));
+        }
+    })
+
+    server.listen(port, () => {
+        console.log("WebMetrik is listening on port " + port);
+    })
+}
+
+
+// CHeck if the metric exitst and delete it
+
+module.exports.deleteMetric = (name) => {
+    if(basics.getMetricsFile().findIndex(x => x.name == name) != -1) {
+        basics.saveMetricsFile(basics.getMetricsFile().filter(x => x.name != name))
+    } 
+}

metrics.json

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+[
+  {
+    "name": "test",
+    "description": "test metric",
+    "value": 20
+  }
+]

package.json

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+{
+  "name": "webmetrik",
+  "version": "0.0.1",
+  "description": "NodeJS - npm package - Make metrics and make it available by making a httpServer",
+  "main": "main.js",
+  "keywords": [],
+  "author": "Raphix",
+  "license": "ISC"
+}