/*eslint no-var: "error" */
/*eslint no-unused-vars: "off" */
/*eslint linebreak-style: "off" */
/*eslint no-trailing-spaces: "off" */
/*eslint-env es6*/
// Put this file in path/to/plugin/amd/src
// You can call it anything you like

import {call} from 'core/ajax';
import notification from 'core/notification';

import Vue from './vue/vue';

import Debugger from './util/debugger';
import {load_strings} from './util/string-helper';
import {ProcessStudyplan} from './studyplan-processor';
import {studyplanTiming} from './util/date-helper';

import EditorComponents from './studyplan-editor-components';
Vue.use(EditorComponents);

import TSComponents from './treestudyplan-components';
Vue.use(TSComponents);

import RVComponents from './report-viewer-components';
Vue.use(RVComponents);

import ModalComponents from './modedit-modal';
Vue.use(ModalComponents);

import PortalVue from './portal-vue/portal-vue.esm';
Vue.use(PortalVue);
import BootstrapVue from './bootstrap-vue/bootstrap-vue';
Vue.use(BootstrapVue);


let debug = new Debugger("treestudyplancoach");

let strings = load_strings({
    coach: {
        studyplan_select_placeholder: 'studyplan_select_placeholder',
        switch_coach_editmode: 'switch_coach_editmode',
    },
});

/**
 * Initialize the Page
 */
export function init() {
    let app = new Vue({
        el: '#root',
        data: {
            displayedstudyplan: null,
            activestudyplan: null,
            associatedstudents: [],
            selectedstudent: null,
            studentstudyplan: null,
            loadingstudyplan: false,
            studyplans: [],
            text: strings.coach,
            toolbox: {
                right: true,
            },
            usedcontexts: [],
            editmode: false,
        },
        async mounted() {
            call([{
                methodname: 'local_treestudyplan_list_coaching_studyplans',
                args: {}
            }])[0].then(function(response){
                const timingval = { present: 0, past: 1, future: 2};
                response.sort((a,b) => {
                    const timinga = studyplanTiming(a);
                    const timingb = studyplanTiming(b);

                    const t = timingval[timinga] - timingval[timingb];
                    if(t == 0){
                        // sort by name if timing is equal
                        return a.name.localeCompare(b.name);
                    }
                    else {
                        return t;
                    }
                });
                app.studyplans = response;
                // load studyplan from hash if applicable
                const hash = window.location.hash.replace('#','');
                const parts = hash.split("-");

                if(!!parts && parts.length > 0){
                    for(let idx in app.studyplans){
                        if(app.studyplans[idx].id == parts[0]){
                            app.selectStudyplan(app.studyplans[idx],parts[1]);
                            break;
                        }
                    }
                }
            }).catch(notification.exception);
        },
        computed: {
        },
        methods: {
            closeStudyplan() {
                app.activestudyplan = null;
                app.associatedstudents = [];
                app.studentstudyplan = [];
                app.displayedstudyplan = null;
                window.location.hash = '';
            },

            selectStudyplan(studyplan,studentid){
                // fetch studyplan
                const self = this;
                self.loadingstudyplan = true;
                self.activestudyplan = null;
                self.associatedstudents = [];
                self.selectedstudent = null;
                self.studentstudyplan = null;
                call([{
                    methodname: 'local_treestudyplan_get_studyplan_map',
                    args: { id: studyplan.id}
                }])[0].then(function(response){
                    self.activestudyplan = ProcessStudyplan(response,true);
                    self.displayedstudyplan = self.activestudyplan;
                    self.loadingstudyplan = false;
                    window.location.hash = self.activestudyplan.id;
                    call([{
                        methodname: 'local_treestudyplan_all_associated_grouped',
                        args: { studyplan_id: studyplan.id}
                    }])[0].then(function(response){
                        self.associatedstudents = response;
                        if(studentid){
                            for(const group of self.associatedstudents) {
                                for(const student of group.users){
                                    if(student.id == studentid){
                                        self.showStudentView(student);
                                        break;
                                    }
                                }
                            }
                        } else {
                            // Select first student available.
                            for(const group of self.associatedstudents) {
                                for(const student of group.users){
                                    self.showStudentView(student);
                                    break;
                                }
                            }
                        }
                    }).catch(notification.exception);

                }).catch(function(error){
                    notification.exception(error);
                    app.loadingstudyplan = false;
                });
            },
            showStudentView(student){
                app.selectedstudent = student;
                app.studentstudyplan = null;
                if (student) {
                    app.loadingstudyplan = true;
                    call([{
                        methodname: 'local_treestudyplan_get_user_studyplan',
                        args: { userid: student.id, studyplanid: app.activestudyplan.id}
                    }])[0].then(function(response){
                        app.studentstudyplan = ProcessStudyplan(response,false);
                        app.displayedstudyplan = app.studentstudyplan;
                        app.loadingstudyplan = false;
                        window.location.hash = app.activestudyplan.id + "-" + student.id;
                    }).catch(function(error){
                        notification.exception(error);
                        app.loadingstudyplan = false;
                    });
                }
            },
            showOverview(){
                app.selectedstudent = null;
                app.studentstudyplan = null;
                app.displayedstudyplan = app.activestudyplan;
                window.location.hash = app.activestudyplan.id;
            }

        },
    });
}