From 745ca267177f815129bb239cae1667f184518d55 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Wed, 13 Feb 2019 15:35:29 +0100
Subject: [PATCH 1/3] first task complete

---
 app/data/zadanie01/sum.txt |  1 +
 app/zadanie01.js           | 37 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/app/data/zadanie01/sum.txt b/app/data/zadanie01/sum.txt
index e69de29..f5cd371 100644
--- a/app/data/zadanie01/sum.txt
+++ b/app/data/zadanie01/sum.txt
@@ -0,0 +1 @@
+sum of numbers from task 01 is: 108
\ No newline at end of file
diff --git a/app/zadanie01.js b/app/zadanie01.js
index 8c20173..6db6a6e 100644
--- a/app/zadanie01.js
+++ b/app/zadanie01.js
@@ -1 +1,36 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+const fs = require('fs');
+console.log('one')    //1
+
+fs.readFile('./data/zadanie01/input.json', 'utf8', (err, data) => {
+    if (err === null) {
+        console.log('two')    // 3
+        console.log(`Poprawnie odczytano plik. typu ${typeof data}: `, data);
+    
+        const dupa = JSON.parse(data);
+
+        console.log(`zmienna: ${dupa[2]} typu: ${typeof dupa[2]}`)
+
+        const sum = dupa.reduce((acc, cur) => {
+            return acc + cur;
+        })
+        console.log(`sum of numbers: ${sum}`)
+
+        fs.writeFile('./data/zadanie01/sum.txt', `sum of numbers from task 01 is: ${sum}`, err => {
+            if (err === null){
+                console.log('zapisano popranie!');
+            } else {
+                console.log(' Błąd podczas zapisu pliku!', err);
+            }
+        });
+
+
+
+
+
+    } else {
+        console.log('Błąd podczas odczytu pliku!', err);
+    }
+    console.log('three') //4
+});
+console.log('four') //2
\ No newline at end of file

From ab562f086ee6f8a84020efa679d5c1d657ce43fe Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Wed, 13 Feb 2019 16:03:30 +0100
Subject: [PATCH 2/3] task02 complete

---
 app/zadanie02.js | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/app/zadanie02.js b/app/zadanie02.js
index 8c20173..b30b94a 100644
--- a/app/zadanie02.js
+++ b/app/zadanie02.js
@@ -1 +1,13 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+const fs = require('fs');
+
+fs.readdir('./data/zadanie02', (err, files) => {
+    if (err === null){
+        console.log('lista plików:');
+        files.forEach(file => {
+            console.log(file);
+        });
+    } else {
+        console.log('Błąd podczas listowania katalogu!', err);
+    }
+});
\ No newline at end of file

From 1333657f61d1bca26c8653962ff898aebc7d99e2 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Wed, 13 Feb 2019 21:09:36 +0100
Subject: [PATCH 3/3] task of the dat complete

---
 app/zadanie01.js   |  8 ++++----
 app/zadanieDnia.js | 30 +++++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 5 deletions(-)

diff --git a/app/zadanie01.js b/app/zadanie01.js
index 6db6a6e..13a9028 100644
--- a/app/zadanie01.js
+++ b/app/zadanie01.js
@@ -7,18 +7,18 @@ fs.readFile('./data/zadanie01/input.json', 'utf8', (err, data) => {
         console.log('two')    // 3
         console.log(`Poprawnie odczytano plik. typu ${typeof data}: `, data);
     
-        const dupa = JSON.parse(data);
+        const paresData = JSON.parse(data);
 
-        console.log(`zmienna: ${dupa[2]} typu: ${typeof dupa[2]}`)
+        console.log(`zmienna: ${paresData[2]} typu: ${typeof paresData[2]}`)
 
-        const sum = dupa.reduce((acc, cur) => {
+        const sum = paresData.reduce((acc, cur) => {
             return acc + cur;
         })
         console.log(`sum of numbers: ${sum}`)
 
         fs.writeFile('./data/zadanie01/sum.txt', `sum of numbers from task 01 is: ${sum}`, err => {
             if (err === null){
-                console.log('zapisano popranie!');
+                console.log('zapisano poprawnie!');
             } else {
                 console.log(' Błąd podczas zapisu pliku!', err);
             }
diff --git a/app/zadanieDnia.js b/app/zadanieDnia.js
index 8c20173..d7999be 100644
--- a/app/zadanieDnia.js
+++ b/app/zadanieDnia.js
@@ -1 +1,29 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const arg = process.argv[2];
+const fs = require('fs');
+
+if(!arg){
+    console.log('give some arg please!')
+}else{
+    console.log(`mutch better: ${arg}`)
+    fs.readFile(arg, 'utf8', (err, data) => {
+        if (err === null) {
+            console.log('poprawnie odczytano plik: ', typeof data, data.length);
+            const str = data;
+            const lowStr = str.toLowerCase();
+            let newStr = '';
+
+            for (i = 0; i < lowStr.length; i++) {
+                 if (i % 2 == 0) {
+                    newStr += lowStr[i].toUpperCase()
+                } else {
+                    newStr += lowStr[i]
+                }
+            }
+            console.log(newStr)
+        } else {
+            console.log('Błąd podczas odczytu plik!', err);
+        }
+    });
+}
\ No newline at end of file