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administration.service.ts 3.89 KiB
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  • import { Injectable } from '@angular/core';
    import { LocalStorageService } from '../../service/local-storage.service';
    import { HeaderService } from '../../service/header.service';
    import { FunctionsService } from '../../service/functions.service';
    import { MatTableDataSource } from '@angular/material/table';
    import { MatPaginator } from '@angular/material/paginator';
    import { MatSort } from '@angular/material/sort';
    import { merge } from 'rxjs/internal/observable/merge';
    import { startWith } from 'rxjs/internal/operators/startWith';
    import { tap } from 'rxjs/internal/operators/tap';
    import { catchError } from 'rxjs/internal/operators/catchError';
    import { of } from 'rxjs/internal/observable/of';
    import { NotificationService } from '../../service/notification/notification.service';
    
    @Injectable()
    export class AdministrationService {
        filters: any = {};
        defaultFilters: any = {
            admin_users: {
                sort: 'user_id',
                sortDirection: 'asc',
                page: 0,
            },
        };
        dataSource: MatTableDataSource<any>;
        filterColumns: string[];
    
        constructor(
            private notify: NotificationService,
            public headerService: HeaderService,
            public functionsService: FunctionsService,
            private localStorage: LocalStorageService,
        ) {
            if (this.localStorage.get(`filtersAdmin_${this.headerService.user.id}`) !== null) {
                this.filters = JSON.parse(this.localStorage.get(`filtersAdmin_${this.headerService.user.id}`));
            }
        }
    
        setFilter(id: string, filter: any) {
            this.filters[id] = filter;
            this.localStorage.save(`filtersAdmin_${this.headerService.user.id}`, JSON.stringify(this.filters));
        }
    
        getDataSource() {
            return this.dataSource;
        }
    
        setDataSource(adminId: string, data: any, sort: MatSort, paginator: MatPaginator, filterColumns: string[]) {
    
            this.filterColumns = filterColumns;
            this.dataSource = new MatTableDataSource(data);
    
            this.dataSource.paginator = paginator;
            this.dataSource.sortingDataAccessor = this.functionsService.listSortingDataAccessor;
    
            if (this.functionsService.empty(this.getFilter('users'))) {
                this.setFilter(
                    adminId,
                    this.defaultFilters[adminId]
                );
            }
    
            sort.active = this.getFilter(adminId, 'sort');
            sort.direction = this.getFilter(adminId, 'sortDirection');
            paginator.pageIndex = this.getFilter(adminId, 'page');
    
            this.dataSource.sort = sort;
    
            merge(sort.sortChange, paginator.page)
                .pipe(
                    startWith({}),
                    tap(() => {
                        this.setFilter(
                            adminId,
                            {
                                sort: sort.active,
                                sortDirection: sort.direction,
                                page: paginator.pageIndex,
                            }
                        );
                    }),
                    catchError((err: any) => {
                        this.notify.handleSoftErrors(err);
                        return of(false);
                    })
                ).subscribe();
        }
    
        getFilter(id: string, idFilter: string = null) {
            if (!this.functionsService.empty(this.filters[id])) {
                if (!this.functionsService.empty(idFilter)) {
                    return this.filters[id][idFilter];
                } else {
                    return this.filters[id];
                }
            } else {
                return null;
            }
        }
    
        applyFilter(filterValue: string) {
            filterValue = filterValue.trim(); // Remove whitespace
            filterValue = filterValue.toLowerCase(); // MatTableDataSource defaults to lowercase matches
            this.dataSource.filter = filterValue;
            this.dataSource.filterPredicate = (template, filter: string) => {
                return this.functionsService.filterUnSensitive(template, filter, this.filterColumns);
            };
        }
    }