Add exams API (#30)

app/src/main/java/io/github/wulkanowy/api/Vulcan.java

@@ -4,6 +4,7 @@ import java.io.IOException;
 
 import io.github.wulkanowy.api.attendance.AttendanceStatistics;
 import io.github.wulkanowy.api.attendance.AttendanceTable;
+import io.github.wulkanowy.api.exams.ExamsWeek;
 import io.github.wulkanowy.api.grades.GradesList;
 import io.github.wulkanowy.api.grades.SubjectsList;
 import io.github.wulkanowy.api.login.AccountPermissionException;
@@ -81,6 +82,10 @@ public class Vulcan extends Api {
         return new AttendanceTable(getStudentAndParent());
     }
 
+    public ExamsWeek getExamsList() throws IOException, NotLoggedInErrorException {
+        return new ExamsWeek(getStudentAndParent());
+    }
+
     public GradesList getGradesList() throws IOException, NotLoggedInErrorException {
         return new GradesList(getStudentAndParent());
     }

app/src/main/java/io/github/wulkanowy/api/exams/Day.java

@@ -0,0 +1,29 @@
+package io.github.wulkanowy.api.exams;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Day {
+
+    private List<Exam> examList = new ArrayList<>();
+
+    private String date = "";
+
+    public String getDate() {
+        return date;
+    }
+
+    public Day setDate(String date) {
+        this.date = date;
+        return this;
+    }
+
+    public List<Exam> getExamList() {
+        return examList;
+    }
+
+    public Day addExam(Exam exam) {
+        this.examList.add(exam);
+        return this;
+    }
+}

app/src/main/java/io/github/wulkanowy/api/exams/Exam.java

@@ -0,0 +1,59 @@
+package io.github.wulkanowy.api.exams;
+
+public class Exam {
+
+    private String subjectAndGroup = "";
+
+    private String type = "";
+
+    private String description = "";
+
+    private String teacher = "";
+
+    private String entryDate = "";
+
+    public String getSubjectAndGroup() {
+        return subjectAndGroup;
+    }
+
+    public Exam setSubjectAndGroup(String subjectAndGroup) {
+        this.subjectAndGroup = subjectAndGroup;
+        return this;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public Exam setType(String type) {
+        this.type = type;
+        return this;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public Exam setDescription(String description) {
+        this.description = description;
+        return this;
+    }
+
+    public String getTeacher() {
+        return teacher;
+    }
+
+    public Exam setTeacher(String teacher) {
+        this.teacher = teacher;
+        return this;
+    }
+
+    public String getEntryDate() {
+        return entryDate;
+    }
+
+    public Exam setEntryDate(String entryDate) {
+        this.entryDate = entryDate;
+        return this;
+    }
+}

app/src/main/java/io/github/wulkanowy/api/exams/ExamsWeek.java

@@ -0,0 +1,65 @@
+package io.github.wulkanowy.api.exams;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import io.github.wulkanowy.api.StudentAndParent;
+
+public class ExamsWeek {
+
+    private final StudentAndParent snp;
+
+    private final String examsPageUrl = "Sprawdziany.mvc/Terminarz?rodzajWidoku=2&data=";
+
+    public ExamsWeek(StudentAndParent snp) {
+        this.snp = snp;
+    }
+
+    public Week getCurrent() throws IOException {
+        return getWeek("", true);
+    }
+
+    public Week getWeek(String tick, final boolean onlyNotEmpty) throws IOException {
+        Document examsPage = snp.getSnPPageDocument(examsPageUrl + tick);
+        Elements examsDays = examsPage.select(".mainContainer > div:not(.navigation)");
+
+        List<Day> days = new ArrayList<>();
+
+        for (Element item : examsDays) {
+            Day day = new Day();
+            Element dayHeading = item.select("h2").first();
+
+            if (null == dayHeading && onlyNotEmpty) {
+                continue;
+            }
+
+            if (null != dayHeading) {
+                day = new Day().setDate(dayHeading.text().split(", ")[1]);
+            }
+
+            Elements exams = item.select("article");
+            for (Element e : exams) {
+                day.addExam(new Exam()
+                        .setSubjectAndGroup(snp.getRowDataChildValue(e, 1))
+                        .setType(snp.getRowDataChildValue(e, 2))
+                        .setDescription(snp.getRowDataChildValue(e, 3))
+                        .setTeacher(snp.getRowDataChildValue(e, 4).split(", ")[0])
+                        .setEntryDate(snp.getRowDataChildValue(e, 4).split(", ")[1])
+                );
+            }
+
+            days.add(day);
+        }
+
+        Week week = new Week();
+        week.setStartDate(examsDays.select("h2").first().text().split(" ")[1]);
+        week.setDayList(days);
+
+        return week;
+    }
+}

app/src/main/java/io/github/wulkanowy/api/exams/Week.java

@@ -0,0 +1,28 @@
+package io.github.wulkanowy.api.exams;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Week {
+
+    private List<Day> dayList = new ArrayList<>();
+
+    private String startDate = "";
+
+    public List<Day> getDayList() {
+        return dayList;
+    }
+
+    public Week setDayList(List<Day> dayList) {
+        this.dayList = dayList;
+        return this;
+    }
+
+    public String getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(String startDate) {
+        this.startDate = startDate;
+    }
+}