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Tang-MoyanTang-Moyan
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Added Level 7. Save
1 parent 5bb12d4 commit 3df8678

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2 files changed

+196
-10
lines changed

2 files changed

+196
-10
lines changed

‎src/main/java/Duke.java‎

Lines changed: 162 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,12 @@
1+
import java.nio.file.Paths;
2+
import java.util.Objects;
13
import java.util.Scanner;
4+
import java.util.ArrayList;
5+
import java.util.List;
6+
import java.io.File;
7+
import java.io.FileWriter;
8+
import java.io.IOException;
9+
import java.nio.file.Path;
210
import HelperClass.Task;
311

412
public class Duke {
@@ -20,7 +28,7 @@ public static void Exit() {
2028

2129
}
2230

23-
private static String getUserTaskName() {
31+
private static String GetUserTaskName() {
2432
Scanner getUserInput = new Scanner(System.in);
2533
String taskName = getUserInput.nextLine();
2634
if (taskName.isEmpty()) {
@@ -30,6 +38,144 @@ private static String getUserTaskName() {
3038
return taskName;
3139
}
3240

41+
}
42+
43+
private static void BackgroundSetUp() {
44+
String directoryName = "data";
45+
String fileName = "list.txt";
46+
47+
File dir = new File(directoryName);
48+
if (!(dir.exists())) {
49+
if (dir.mkdir()) {
50+
System.out.println("Directory '" + directoryName + "' created.");
51+
} else {
52+
System.err.println("Failed to create directory '" + directoryName + "'.");
53+
return;
54+
}
55+
}
56+
57+
58+
File file = new File(dir, fileName);
59+
60+
if (!(file.exists())) {
61+
try {
62+
if (file.createNewFile()) {
63+
System.out.println("File '" + fileName + "' created in directory '" + directoryName + "'.");
64+
} else {
65+
System.err.println("Failed to create file '" + fileName + "' in directory '" + directoryName + "'.");
66+
}
67+
} catch (IOException e) {
68+
throw new RuntimeException(e);
69+
}
70+
}
71+
}
72+
73+
74+
private static List<String> ReadLine(String line) {
75+
List<String> formattedLine = new ArrayList<>();
76+
Scanner lineScanner = new Scanner(line);
77+
while (lineScanner.hasNext()) {
78+
79+
String token = lineScanner.next();
80+
formattedLine.add(token);
81+
82+
}
83+
lineScanner.close();
84+
85+
return formattedLine;
86+
}
87+
88+
89+
90+
private static Task[] LoadList() {
91+
Task[] userList = new Task[100];
92+
int positionPointer = 0;
93+
94+
String fileName = "data/list.txt";
95+
Path path = Paths.get(fileName);
96+
try {
97+
Scanner fileScanner = new Scanner(path);
98+
while(fileScanner.hasNextLine()){
99+
100+
// Record format: "Type | Status | Name | Time"
101+
// example: "D | 0 | return book | June 6th"
102+
// "0" for not done and "1" for done
103+
104+
String line = fileScanner.nextLine();
105+
106+
List<String> formattedLine = ReadLine(line);
107+
108+
109+
110+
List<String> attributes = new ArrayList<>();
111+
String attributeName = "";
112+
113+
for (Object element : formattedLine) {
114+
if (element.equals("|")) {
115+
attributes.add(attributeName);
116+
attributeName = "";
117+
} else {
118+
attributeName = attributeName + element + " ";
119+
120+
}
121+
}
122+
123+
attributes.add(attributeName);
124+
boolean isDone = attributes.get(1).equals("1");
125+
126+
switch (attributes.get(0)) {
127+
case "T": {
128+
Task task = new Task(attributes.get(2), 1, "Null", isDone);
129+
userList[positionPointer] = task;
130+
131+
break;
132+
}
133+
case "D": {
134+
Task task = new Task(attributes.get(2), 2, attributes.get(3), isDone);
135+
userList[positionPointer] = task;
136+
137+
break;
138+
}
139+
case "E": {
140+
Task task = new Task(attributes.get(2), 3, attributes.get(3), isDone);
141+
userList[positionPointer] = task;
142+
143+
break;
144+
145+
146+
}
147+
default:
148+
throw new IllegalStateException("Unexpected value: " + attributes.get(0));
149+
}
150+
151+
positionPointer++;
152+
153+
154+
}
155+
fileScanner.close();
156+
157+
} catch (IOException e) {
158+
throw new RuntimeException(e);
159+
}
160+
161+
162+
return userList;
163+
}
164+
165+
private static void SaveList(Task[] userList, int numberOfElements) {
166+
String fileName = "data/list.txt";
167+
try (FileWriter writer = new FileWriter(fileName)) {
168+
for (int i = 0; i < numberOfElements; i++) {
169+
writer.write(userList[i].ForRecordingInTextFile());
170+
writer.write("\n");
171+
}
172+
173+
} catch (IOException e) {
174+
throw new RuntimeException(e);
175+
}
176+
177+
178+
33179
}
34180

35181

@@ -41,13 +187,15 @@ public static void main(String[] args) {
41187
+ "|____/ \\__,_|_|\\_\\___|\n";
42188
System.out.println("Hello from\n" + logo);
43189

190+
BackgroundSetUp();
191+
44192

45193
Greet();
46194

47195
boolean wantToExit = false;
48196
Scanner getUserInput = new Scanner(System.in);
49197
Scanner getUserIndex = new Scanner(System.in);
50-
Task[] userList = new Task[100];
198+
Task[] userList = LoadList();
51199

52200
int listPointer = 0;
53201

@@ -59,7 +207,10 @@ public static void main(String[] args) {
59207

60208
case "bye":
61209
wantToExit = true;
210+
getUserInput.close();
211+
getUserIndex.close();
62212
Exit();
213+
63214
break;
64215

65216
case "list":
@@ -105,9 +256,9 @@ public static void main(String[] args) {
105256

106257
case "todo":
107258
System.out.println("Enter task name:");
108-
String taskName = getUserTaskName();
259+
String taskName = GetUserTaskName();
109260
if (!(taskName.isEmpty())) {
110-
userList[listPointer] = new Task(taskName, 1, "");
261+
userList[listPointer] = new Task(taskName, 1, "Null", false);
111262

112263
System.out.println("Got it. I've added this task:");
113264

@@ -122,11 +273,11 @@ public static void main(String[] args) {
122273

123274
case "deadline":
124275
System.out.println("Enter task name:");
125-
String taskN = getUserTaskName();
276+
String taskN = GetUserTaskName();
126277
if (!(taskN.isEmpty())) {
127278
System.out.println("Enter deadline:");
128279
String timePeriod = getUserInput.nextLine();
129-
userList[listPointer] = new Task(taskN, 2, "by:" + timePeriod);
280+
userList[listPointer] = new Task(taskN, 2, "by:" + timePeriod, false);
130281

131282
System.out.println("Got it. I've added this task:");
132283

@@ -140,13 +291,14 @@ public static void main(String[] args) {
140291

141292
case "event":
142293
System.out.println("Enter task name:");
143-
String tN = getUserTaskName();
294+
String tN = GetUserTaskName();
144295
if (!(tN.isEmpty())) {
145296
System.out.println("Enter start time:");
146297
String startTime = getUserInput.nextLine();
147298
System.out.println("Enter end time:");
148299
String endTime = getUserInput.nextLine();
149-
userList[listPointer] = new Task(tN, 3, "from: " + startTime + " to: " + endTime);
300+
String timePeriod = "from: " + startTime + " to: " + endTime;
301+
userList[listPointer] = new Task(tN, 3, timePeriod, false);
150302

151303
System.out.println("Got it. I've added this task:");
152304

@@ -202,6 +354,8 @@ public static void main(String[] args) {
202354
}
203355
printOneLine();
204356

357+
SaveList(userList, listPointer);
358+
205359
}
206360

207361

‎src/main/java/HelperClass/Task.java‎

Lines changed: 34 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -5,8 +5,8 @@ public class Task {
55
private int type;
66
private String timePeriod;
77
private String taskName;
8-
public Task(String taskName, int type, String timePeriod) {
9-
this.isDone = false;
8+
public Task(String taskName, int type, String timePeriod, boolean isDone) {
9+
this.isDone = isDone;
1010
this.type = type;
1111
this.timePeriod = timePeriod;
1212
this.taskName = taskName;
@@ -50,6 +50,38 @@ public String display() {
5050

5151

5252

53+
return description;
54+
}
55+
56+
public String ForRecordingInTextFile() {
57+
// Record format: "Type | Status | Name | Time"
58+
// example: "D | 0 | return book | June 6th"
59+
// "0" for not done and "1" for done
60+
61+
String description = "";
62+
switch (this.type) {
63+
case 1:
64+
description = description + "T | ";
65+
break;
66+
case 2:
67+
description = description + "D | ";
68+
break;
69+
case 3:
70+
description = description + "E | ";
71+
break;
72+
}
73+
if (isDone) {
74+
description = description + "1 | " + taskName;
75+
} else {
76+
description = description + "0 | " + taskName;
77+
}
78+
79+
if (!(this.type == 1)) {
80+
description = description + " | " + timePeriod;
81+
}
82+
83+
84+
5385
return description;
5486
}
5587
}

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