application.preview.ts

import { Component, OnInit, OnDestroy } from '@angular/core';
import { Router } from '@angular/router';
import { BehaviorSubject, Subscription } from 'rxjs/Rx';
import { Injectable } from "@angular/core";
import { NgRedux, select } from '@angular-redux/store';
import { IAppState } from '../../store/store';
import { SectorFieldsActions } from '../../actions/sectorfields.actions';
import { SectorCoursesActions } from '../../actions/sectorcourses.actions';
import { RegionSchoolsActions } from '../../actions/regionschools.actions';
import { EpalClassesActions } from '../../actions/epalclass.actions';
import { ISectorFields } from '../../store/sectorfields/sectorfields.types';
import { ISectors } from '../../store/sectorcourses/sectorcourses.types';
import { IRegionRecord, IRegionRecords, IRegionSchoolRecord } from '../../store/regionschools/regionschools.types';
import { IEpalClasses } from '../../store/epalclasses/epalclasses.types';
import {AppSettings} from '../../app.settings';
import { REGION_SCHOOLS_INITIAL_STATE } from '../../store/regionschools/regionschools.initial-state';
import { EPALCLASSES_INITIAL_STATE } from '../../store/epalclasses/epalclasses.initial-state';
import { SECTOR_COURSES_INITIAL_STATE } from '../../store/sectorcourses/sectorcourses.initial-state';
import { SECTOR_FIELDS_INITIAL_STATE } from '../../store/sectorfields/sectorfields.initial-state';

@Component({
    selector: 'application-preview-select',
    template: `
        <div *ngFor="let epalclass$ of epalclasses$ | async;">
        <h4 style="margin-top: 20px; line-height: 2em; ">Οι επιλογές μου</h4>
        <ul class="list-group left-side-view" style="margin-bottom: 20px;">
                <li class="list-group-item active">
                    Τάξη φοίτησης στο νέο σχολικό έτος
                </li>
                <li class="list-group-item" *ngIf="epalclass$.name === '1'">
                    Α’ Λυκείου
                </li>
                <li class="list-group-item" *ngIf="epalclass$.name === '2'">
                    Β’ Λυκείου
                </li>
                <li class="list-group-item" *ngIf="epalclass$.name === '3'">
                    Γ’ Λυκείου
                </li>
                <li class="list-group-item" *ngIf="epalclass$.name === '4'">
                    Δ’ Λυκείου
                </li>

        </ul>
        </div>

        <div *ngFor="let sectorField$ of sectorFields$ | async">
        <ul class="list-group left-side-view">
            <li class="list-group-item active" *ngIf="sectorField$.selected === true" >
                {{sectorField$.name}}
            </li>
            </ul>
        </div>

    <div *ngFor="let sector$ of sectors$  | async;">
            <ul class="list-group left-side-view" style="margin-bottom: 20px;" *ngIf="sector$.sector_selected === true">
                <li class="list-group-item active" *ngIf="sector$.sector_selected === true" >
                    {{sector$.sector_name }}
                </li>
        <div *ngFor="let course$ of sector$.courses;" >

                <li class="list-group-item" *ngIf="course$.selected === true">
                    {{course$.course_name   }}
                </li>

        </div>
            </ul>
        </div>

        <ul *ngIf="(selectedSchools$ | async)" class="list-group left-side-view" style="margin-bottom: 20px;">

                <div *ngFor="let epal$ of selectedSchools$ | async; let i=index; let isOdd=odd; let isEven=even" >

                <li class="list-group-item" [class.oddout]="isOdd" [class.evenout]="isEven">
                    <span class="roundedNumber">{{(i+1)}}</span>&nbsp;&nbsp;{{epal$.get("epal_name")}}
                </li>
              </div>
        </ul>
  `
})

@Injectable() export default class ApplicationPreview implements OnInit {
    private sectors$: BehaviorSubject<ISectors>;
    private regions$: BehaviorSubject<IRegionRecords>;
    private selectedSchools$: BehaviorSubject<Array<IRegionSchoolRecord>> = new BehaviorSubject(Array());
    private sectorFields$: BehaviorSubject<ISectorFields>;
    private epalclasses$: BehaviorSubject<IEpalClasses>;
    private epalclassesSub: Subscription;
    private sectorsSub: Subscription;
    private regionsSub: Subscription;
    private sectorFieldsSub: Subscription;
    private courseActive = "-1";
    private numSelectedSchools = <number>0;
    private numSelectedOrder = <number>0;
    private classSelected = 0;
    public currentUrl: string;

    constructor(private _ngRedux: NgRedux<IAppState>,
        private router: Router
    ) {

        this.regions$ = new BehaviorSubject(REGION_SCHOOLS_INITIAL_STATE);
        this.epalclasses$ = new BehaviorSubject(EPALCLASSES_INITIAL_STATE);

        this.sectors$ = new BehaviorSubject(SECTOR_COURSES_INITIAL_STATE);
        this.sectorFields$ = new BehaviorSubject(SECTOR_FIELDS_INITIAL_STATE);
    };

    ngOnInit() {
        this.currentUrl = this.router.url;
        this.sectorsSub = this._ngRedux.select('sectors')
            .subscribe(sectors => {
                let scs = <ISectors>sectors;
                scs.reduce((prevSector, sector) => {
                    sector.courses.reduce((prevCourse, course) => {
                        if (course.selected === true) {
                            this.courseActive = course.course_id;
                        }

                        return course;
                    }, {});
                    return sector;
                }, {});
                this.sectors$.next(scs);
            });

        this.regionsSub = this._ngRedux.select('regions')
            .subscribe(regions => {
                let rgns = <IRegionRecords>regions;
                let numsel = 0, numsel2 = 0;
                let selectedSchools = Array<IRegionSchoolRecord>();
                if (rgns.size === 0)
                    return;
                rgns.reduce((prevRegion, region) => {
                    region.get("epals").reduce((prevEpal, epal) => {
                        if (epal.get("selected") === true) {
                            numsel++;
                            selectedSchools.push(epal);
                        }
                        if (epal.get("order_id") !== 0) {
                            numsel2++;
                        }
                        return epal;
                    }, {});
                    return region;
                }, {});
                this.numSelectedSchools = numsel;
                this.numSelectedOrder = numsel2;
                this.selectedSchools$.next(selectedSchools.sort(this.compareSchools));
            });

        this.sectorFieldsSub = this._ngRedux.select('sectorFields')
            .subscribe(sectorFields => {
                this.sectorFields$.next(<ISectorFields>sectorFields);
            }, error => {console.log("error selecting sectorFields");});

        this.epalclassesSub = this._ngRedux.select('epalclasses')
            .subscribe(epalclasses => {
                let ecs = <IEpalClasses>epalclasses;
                ecs.reduce(({}, epalclass) => {
                    if (epalclass.name === "Α' Λυκείου")
                        this.classSelected = 1;
                    else if (epalclass.name === "Β' Λυκείου")
                        this.classSelected = 2;
                    else if (epalclass.name === "Γ' Λυκείου")
                        this.classSelected = 3;
                    else if (epalclass.name === "Δ' Λυκείου")
                        this.classSelected = 4;
                    return epalclass;
                }, {});
                this.epalclasses$.next(ecs);
            }, error => {console.log("error selecting epalclasses");});

    }

    compareSchools(a: IRegionSchoolRecord,b: IRegionSchoolRecord) {
        if (a.order_id < b.order_id)
            return -1;
        if (a.order_id > b.order_id)
            return 1;
        return 0;
    }

    ngOnDestroy() {
        if (this.regionsSub) {
            this.regionsSub.unsubscribe();
//            this.regions$.unsubscribe();
        }
        if (this.sectorsSub) {
            this.sectorsSub.unsubscribe();
//            this.sectors$.unsubscribe();
        }
        if (this.sectorFieldsSub) {
            this.sectorFieldsSub.unsubscribe();
//            this.sectorFields$.unsubscribe();
        }
        if (this.epalclassesSub) {
            this.epalclassesSub.unsubscribe();
//            this.epalclasses$.unsubscribe();
        }

    }

}