advanced-programming/HW2/index.html at master · eneskarali/advanced-programming · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width">
    <script src="Database.js"></script>
    <title>Student Database </title>

    <script>
"use strict";
function getRandomStudent() {
    let keys = Array.from(data.students.keys());
    return data.students.get(keys[Math.floor(Math.random() * keys.length)]);
}

function clearTable(tblID) {
    let tbl = document.getElementById(tblID);
    tbl.innerHTML = "";
}

function clearButton(tblID) {
    let tbl = document.getElementById(tblID);
    tbl.innerHTML = "";
    sIdInput.value="";
    cCodeInput.value="";
    gpaInput.value="";
    eRoomInput.value="";
}

function addStudentTableHead(tblID) {

    let tbl = document.getElementById(tblID);

    let head=tbl.insertRow(0);

    let c1 = head.insertCell(0);
    let c2 = head.insertCell(1);
    let c3 = head.insertCell(2);

    c1.innerHTML = "ID";
    c2.innerHTML = "Name";
    c3.innerHTML = "GPA";
}
function addCoursesTableHead(tblID) {
    let tbl = document.getElementById(tblID);

    let head =  tbl.insertRow(0);

    let c1 = head.insertCell(0);
    let c2 = head.insertCell(1);
    let c3 = head.insertCell(2);
    let c4 = head.insertCell(3);

    c1.innerHTML = "CODE";
    c2.innerHTML = "TIME";
    c3.innerHTML = "DATE";
    c4.innerHTML = "ROOMS";
}
function addStudentTableCoursesHead(tblID) {
    let tbl = document.getElementById(tblID);
    let r1c4 = tbl.rows[0].insertCell(3);
    r1c4.innerHTML="Courses";
}

function addTableGivenStudentCourses(student, tblID) {
    let tbl = document.getElementById(tblID);
    addStudentTableCoursesHead(tblID);
    let r2c4 = tbl.rows[1].insertCell(3);

    let select = document.createElement("select");
    select.size=3;
    select.disabled="disabled";
    select.style.width="125px";


    for(let course of student.courses){
        let option = document.createElement("option");
        option.text=course.name;
        option.style.color="blue";
        select.appendChild(option);
    }
    r2c4.appendChild(select);
}

function addTableGiverCourse(course, tblID,rowIndex) {
    let tbl = document.getElementById(tblID);

    let head =  tbl.insertRow(rowIndex);

    let c1 = head.insertCell(0);
    let c2 = head.insertCell(1);
    let c3 = head.insertCell(2);
    let c4 = head.insertCell(3);

    c1.innerHTML = course.name;
    c2.innerHTML = course.time;
    c3.innerHTML = course.date;

    let select = document.createElement("select");
    select.size=3;
    select.disabled="disabled";
    select.style.width="125px";


    for(let room of course.rooms){
        let option = document.createElement("option");
        option.text=room.toString();
        option.style.color="blue";
        select.appendChild(option);
    }
    c4.appendChild(select);

}

function addTableGivenStudent(student,tblID,rowIndex=1) {

    let tbl = document.getElementById(tblID);
    let row = tbl.insertRow(rowIndex);

    let c1 = row.insertCell(0);
    let c2 = row.insertCell(1);
    let c3 = row.insertCell(2);

    c1.style.width = "100px";
    c2.style.width = "130px";
    c3.style.width = "70px";

    c1.innerHTML = student.id;
    c2.innerHTML = student.name;
    c3.innerHTML = student.gpa;
}
function randomStudentButton() {
    clearTable("tbl");
    addStudentTableHead("tbl");

    let student = getRandomStudent();
    addTableGivenStudent(student,"tbl");
}

function getStudentNumberGPA() {
    clearTable("tbl");
    if(gpaInput.value!="") {
        let tbl = document.getElementById("tbl");
        let head = tbl.insertRow(0);

        let gpa = gpaInput.value;
        let count = 0;
        for (let student of data.students.values()) {
            let sgp = Number(student.gpa);
            if (sgp > gpa) {
                count++;
            }
        }
        head.insertCell(0).innerHTML = "The Number of Students of Given GPA:  " + count;
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "GPA is Empty!";
    }
}

function coursesOfGivenStudentButton() {
    clearTable("tbl");
    if (sIdInput.value != "") {

        addStudentTableHead("tbl");

        let sID = sIdInput.value;
        let student = data.students.get(sID);
        addTableGivenStudent(student, "tbl");
        addTableGivenStudentCourses(student, "tbl");
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Student ID is Empty!";
    }
}

function examScheduleButton() {
    clearTable("tbl");
    if(sIdInput.value!="") {
        let student = data.students.get(sIdInput.value);
        let rowIndex = 1;

        addCoursesTableHead("tbl");
        for (let course of student.courses) {
            addTableGiverCourse(course, "tbl", rowIndex);
            rowIndex++;
        }
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Student ID is Empty!";
    }
}

function studentListGivenCourseButton() {
    clearTable("tbl");
    if(cCodeInput.value!="") {
        addStudentTableHead("tbl");
        let givenCourse = data.courses.get(cCodeInput.value);
        let rowIndex = 1;
        for (let student of data.students.values()) {
            for (let course of student.courses) {
                if (course === givenCourse) {
                    addTableGivenStudent(student, "tbl", rowIndex);
                }
            }
        }
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Course Code is Empty!";
    }
}

function courseListGivenExamRoomButton() {
    clearTable("tbl");
    if(eRoomInput.value!="") {
        let examRoom = eRoomInput.value;
        addCoursesTableHead("tbl");
        for (let course of data.courses.values()) {
            for (let room of course.rooms) {
                if (examRoom == room) {
                    addTableGiverCourse(course, "tbl");
                }
            }
        }
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Exam Room is Empty!";
    }
}

function numberOfGiverRoom() {
    clearTable("tbl");
    if(eRoomInput.value!="") {
        let givenRoom = eRoomInput.value;
        let count = 0;
        for (let course of data.courses.values()) {
            for (let room of course.rooms) {
                if (room == givenRoom) {
                    count++;
                }
            }
        }

        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        let c1 = row.insertCell(0);
        c1.style.width = "300px";
        c1.innerHTML = "The Number of Courses in Given Exam Room: " + count;
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Exam Room is Empty!";
    }
}

function getTotalCourseHourOfGivenStudent() {
    clearTable("tbl");
    if(sIdInput.value!="") {
        let student = data.students.get(sIdInput.value);
        var total = 0;

        for (let course of student.courses) {
            let time = course.time;
            let hours = time.split("-");
            let first = hours[0].slice(0, 2);
            let last = hours[1].slice(0, 2);
            let courseHour = Number(last) - Number(first);
            console.log(courseHour);
            total = total + courseHour;
        }

        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Total Exam Hours of Given Student: " + total;
    }
    else{
        let tbl = document.getElementById("tbl");
        let row = tbl.insertRow(0);
        row.insertCell(0).innerHTML = "Exam Room is Empty!";

    }
}

    </script>
</head>

<body>

<hr />
<h2 id=title></h2>
<hr />

<p><b>Student ID:</b>
    <input type=number id=sIdInput style="margin-left: 20px">
</p>
<p><b>Course Code:</b>
    <input type=text  id=cCodeInput style="margin-left: 7px">
</p>
</p>
<p><b>GPA:</b>
    <input  type=number id=gpaInput style="margin-left: 63px">
</p>
<p><b>Exam Room:</b>
    <input type=text  id=eRoomInput style="margin-left: 10px">
</p>

<hr />

<p><b>Get A Random Student:</b> <button onClick='randomStudentButton()' style="width: 100px ; height: 26px ; margin-left:127px;font-weight: bold" >Random</button></p>
<p><b>The Number of Students of Given GPA:</b> <button onClick='getStudentNumberGPA()' style="width: 100px ; height: 26px; margin-left: 20px; font-weight: bold">Get</button></p>
<p><b>The Courses of Given Student:</b> <button onClick='coursesOfGivenStudentButton()' style="width: 100px ; height: 26px; margin-left: 82px; font-weight: bold">Get</button></p>
<p><b>The Exam Schedule of Given Student:</b> <button onClick='examScheduleButton()' style="width: 100px ; height: 26px; margin-left: 33px; font-weight: bold">Get</button></p>
<p><b>Student List of Given Course:</b> <button onClick='studentListGivenCourseButton()' style="width: 100px ; height: 26px; margin-left: 89px; font-weight: bold">Get</button></p>
<p><b>Course List of Given Exam Room:</b> <button onClick='courseListGivenExamRoomButton()' style="width: 100px ; height: 26px; margin-left: 58px; font-weight: bold">Get</button></p>
<p><b>Number of Courses in Given Room: </b> <button onClick='numberOfGiverRoom()' style="width: 100px ; height: 26px; margin-left: 49px; font-weight: bold">Get</button></p>
<p><b>Total Exam Hours of Given Student: </b> <button onClick='getTotalCourseHourOfGivenStudent()' style="width: 100px ; height: 26px; margin-left: 45px; font-weight: bold">Get</button></p>
<hr />

<button onClick='clearButton("tbl")' style="width: 80px ; height: 26px; font-weight: bold">Clear</button>
<br>
<table id=tbl style="width:500px">
</table>

<script>
    title.innerText = document.title;
    data = new Database();
</script>

</body>
</html>