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08-reading-state #8

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6 changes: 3 additions & 3 deletions src/app/books/components/books-page/books-page.component.html
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Original file line number Diff line number Diff line change
@@ -1,9 +1,9 @@
<div class="container">
<div class="col-50">
<app-books-total [total]="total"> </app-books-total>
<app-books-total [total]="total$ | async"> </app-books-total>

<app-books-list
[books]="books"
[books]="books$ | async"
(select)="onSelect($event)"
(delete)="onDelete($event)"
>
Expand All @@ -12,7 +12,7 @@

<app-book-detail
class="col-50"
[book]="currentBook"
[book]="currentBook$ | async"
(save)="onSave($event)"
(cancel)="onCancel()"
>
Expand Down
44 changes: 16 additions & 28 deletions src/app/books/components/books-page/books-page.component.ts
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Original file line number Diff line number Diff line change
@@ -1,11 +1,13 @@
import { Component, OnInit } from "@angular/core";
import { Store } from "@ngrx/store";
import { State } from "src/app/shared/state";
import { Observable } from "rxjs";
import {
BookModel,
calculateBooksGrossEarnings,
BookRequiredProps
} from "src/app/shared/models/book.model";
State,
selectAllBooks,
selectActiveBook,
selectBooksEarningsTotals
} from "src/app/shared/state";
import { BookModel, BookRequiredProps } from "src/app/shared/models/book.model";
import { BooksService } from "src/app/shared/services/book.service";
import { BooksPageActions, BooksApiActions } from "../../actions";

Expand All @@ -15,39 +17,30 @@ import { BooksPageActions, BooksApiActions } from "../../actions";
styleUrls: ["./books-page.component.css"]
})
export class BooksPageComponent implements OnInit {
books: BookModel[] = [];
currentBook: BookModel | null = null;
total: number = 0;

constructor(
private booksService: BooksService,
private store: Store<State>
) {}
books$: Observable<BookModel[]>;
currentBook$: Observable<BookModel | null>;
total$: Observable<number>;

constructor(private booksService: BooksService, private store: Store<State>) {
this.books$ = store.select(selectAllBooks);
this.currentBook$ = store.select(selectActiveBook);
this.total$ = store.select(selectBooksEarningsTotals);
}

ngOnInit() {
this.store.dispatch(BooksPageActions.enter());

this.getBooks();
this.removeSelectedBook();
}

getBooks() {
this.booksService.all().subscribe(books => {
this.books = books;
this.updateTotals(books);

this.store.dispatch(BooksApiActions.booksLoaded({ books }));
});
}

updateTotals(books: BookModel[]) {
this.total = calculateBooksGrossEarnings(books);
}

onSelect(book: BookModel) {
this.store.dispatch(BooksPageActions.selectBook({ bookId: book.id }));

this.currentBook = book;
}

onCancel() {
Expand All @@ -56,8 +49,6 @@ export class BooksPageComponent implements OnInit {

removeSelectedBook() {
this.store.dispatch(BooksPageActions.clearSelectedBook());

this.currentBook = null;
}

onSave(book: BookRequiredProps | BookModel) {
Expand Down Expand Up @@ -85,9 +76,6 @@ export class BooksPageComponent implements OnInit {
);

this.booksService.update(book.id, book).subscribe(book => {
this.getBooks();
this.removeSelectedBook();

this.store.dispatch(BooksApiActions.bookUpdated({ book }));
});
}
Expand Down