var mainWindow = {
    data: function(){
        return {
            'courses': [],
            'selectCourses': [],
            'departments': [],
            'selectDepartment': '',
            'foundName': "",
            "user": "",
            'token': ""
        }
    },
    created() {
        var main = this
        window.fbAsyncInit = function() {
            FB.init({
                appId      : '',
                cookie     : true,
                xfbml      : true,
                version    : 'v9.0'
            });
                
            FB.AppEvents.logPageView();
            main.getCourseTable()
        };
      
        (function(d, s, id){
           var js, fjs = d.getElementsByTagName(s)[0];
           if (d.getElementById(id)) {return;}
           js = d.createElement(s); js.id = id;
           js.src = "https://connect.facebook.net/en_US/sdk.js";
           fjs.parentNode.insertBefore(js, fjs);
        }(document, 'script', 'facebook-jssdk'));
    },
    mounted() {
        var main = this
        axios
            .get("./output.json")
            .then(response => (main.courses = response.data))
            .then(function(){
                for(var course of main.courses){
                    // console.log(course.name)
                    if(main.departments.indexOf(course.department)==-1){
                        main.departments.push(course.department)
                    }
                }
            })
            .then(function(){
                main.departments.sort()
                main.selectDepartment = main.departments[15]
            })
    },
    methods: {
        'login': function(){
            var main = this
            FB.login(function(){
                main.getCourseTable()
            })
        },
        'logout': function(){
            var main = this
            FB.logout(function(response) {
                main.user = ""
                main.token = ""
            });
        },
        'getCourseTable': function(){
            var main = this
            FB.getLoginStatus(function(response) {
                main.statusChangeCallback(response);
            });
        },
        'statusChangeCallback': function(response){
            if(response.status == "connected"){
                this.token = response.authResponse.accessToken

                var main = this
                FB.api('/me', function(response){main.user = response.name})

                fetch('https://api.snsd0805.com/courseTable?token='+this.token)
                    .then(function(response){
                        return response.json()
                    }).then(function(jsonData){
                        console.log(jsonData)
                        main.selectCourses = JSON.parse(jsonData['data'])
                    })
                    .catch(function(err){
                        alert("錯誤： "+err)
                    })
            }
        },
        'saveCourseTable': function(){
            var main = this
            if(this.token!=""){
                fetch('https://api.snsd0805.com/courseTable',{
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    body: JSON.stringify({
                        'token': main.token,
                        'data': main.selectCourses
                    })
                })
                    .then(function(response){
                        return response.json()
                    })
                    .then(function(response){
                        if(response.status=="saved"){
                            alert("已儲存")
                        }else{
                            alert("錯誤")
                        }
                    })
                    .catch(function(err){
                        alert("錯誤： "+err)
                    })

            }else{
                this.login()
            }
        },
        'getTime': function(timeString){
            ans = []
            number = ""
            for(var i of timeString){
                if(i>="0" && i<="9"){
                    number = i
                }else if(i>="a" && i<="z"){
                    ans.push(number+i)
                }
                else{
                    ans.push(timeString)
                    break
                }
            }
            return ans
        },
        'select': function(department){
            this.selectDepartment = department
        },
        'founded': function(courseName){
            this.foundName = courseName
        },
        'addCourse': function(course){
            var time = this.getTime(course.time)
            for(var t of time){
                this.selectCourses.push({
                    'time': t,
                    'name': course.name,
                    'temp': false
                })
            }
        },
        'removeCourse': function(course){
            console.log("remove "+course)
            for(var i=this.selectCourses.length-1;i>=0;i--){
                if(this.selectCourses[i].name == course){
                    this.selectCourses.splice(i, 1)
                }
            }
        },
        'saveTemp': function(course){
            if(course==null){
            }else{
                this.tempCourse = []
                var time = this.getTime(course.time)
                for(var t of time){
                    this.selectCourses.push({
                        'time': t,
                        'name': course.name,
                        'temp': true
                    })
                }
            }
        },
        'deleteTemp': function(course){
            for(var i=this.selectCourses.length-1;i>=0;i--){
                if(this.selectCourses[i].name == course.name && this.selectCourses[i].temp == true){
                    this.selectCourses.splice(i, 1)
                }
            }
        },
    },
    components: {
        'course-table': courseTable,
        'choose-department': chooseDepartment,
        'course-anslist': coursesList
    },
    template: `
    <div>
<!-- Navigation-->
<nav class="navbar navbar-expand-lg bg-secondary text-uppercase fixed-top" id="mainNav">
    <div class="container">
        <a class="navbar-brand js-scroll-trigger" href="#page-top">暨大排課表</a>
        <button class="navbar-toggler navbar-toggler-right text-uppercase font-weight-bold bg-primary text-white rounded" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
            Menu
            <i class="fas fa-bars"></i>
        </button>
        <div class="collapse navbar-collapse" id="navbarResponsive">
            <ul class="navbar-nav ml-auto">
                <li class="nav-item mx-0 mx-lg-1"><a class="nav-link py-3 px-0 px-lg-3 rounded js-scroll-trigger" href="https://github.com/snsd0805/NCNU_Course">Github</a></li>
                
                <li v-if="token==''" class="nav-item mx-0 mx-lg-1"><a class="nav-link py-3 px-0 px-lg-3 rounded js-scroll-trigger" href='#' v-on:click="login()">Facebook登入</a></li>
                <li v-if="token!=''" class="nav-item mx-0 mx-lg-1"><a class="nav-link py-3 px-0 px-lg-3 rounded js-scroll-trigger" href="#" v-on:click="logout()">登出Facebook—{{user}}</a></li>

            </ul>
        </div>
    </div>
</nav>
<br><br>


<section class="page-section portfolio" id="portfolio">
    <div class="container" id='table'>
        <!-- Portfolio Section Heading-->
        <h2 class="page-section-heading text-center text-uppercase text-secondary mb-0">課表</h2>
        <!-- Icon Divider-->
        <div class="divider-custom">
            <div class="divider-custom-line"></div>
            <div class="divider-custom-icon"><i class="fas fa-star"></i></div>
            <div class="divider-custom-line"></div>
        </div>
        <div class="divider-custom">
            <div v-if="token!=''"><button class="btn btn-info" @click="saveCourseTable()">儲存</button></div>
            <div v-if="token==''"><button class="btn btn-info" @click="saveCourseTable()">儲存(必須登入Facebook帳號)</button></div>
        </div>
        <div class="row">
            <div class="col-lg-3">
                <div class="row">
                    <choose-department 
                        v-bind:departments="departments"
                        v-bind:selected="selectDepartment"
                        v-on:selectok="select"
                        v-on:foundedok="founded"
                    >
                    </choose-department><br>
                </div><br><br>
                <div class="row">
                    <course-anslist
                        v-bind:courses="courses"
                        v-bind:selected_d="selectDepartment"
                        v-bind:selected_c="selectCourses"
                        v-bind:find_name="foundName"
                        v-on:add-course="addCourse"
                        v-on:show-temp="saveTemp"
                        v-on:delete-temp="deleteTemp"
                    >
                    </course-anslist>
                </div><br><br>
            </div>

            <div class="col-lg-9 table-responsive " >
                <course-table
                    v-bind:selectCourses="selectCourses"
                    v-bind:select_c="selectCourses"
                    v-bind:is_shared="false"
                    v-on:remove-course="removeCourse"
                ></course-table>
            </div>
        </div>
        <!-- Portfolio Grid Items-->
    </div>
</section>


<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="exampleModalLabel">資訊公告</h5>
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">×</span>
                </button>
            </div>
            <div class="modal-body">
                已經更新為 1092 新課表<br>
                但因學校未更新通識課資料，因此還沒有「通識課程分類」<br><br>
                2021 01/14 更新
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-dismiss="modal">我知道了</button>
            </div>
        </div>
    </div>
</div>
</div>
</div>
    `
}