Files
JS/webseite-ts-claude/frontend/dev/scripts/modules/ProductManager.ts
Philippe Torrel 1afc687270 feat: init react
2026-08-04 10:04:24 +02:00

617 lines
19 KiB
TypeScript

import { Modal } from 'bootstrap'; // ohne Pfadangabe (Modul auslesen aus node_modules) funktioniert nur mit JS-Bundler (esbuild, rollup & co.)
import Toast from './Toast';
import type { ApiResponse, Product, ProductDraft } from '../types';
// import * as bootstrap from 'bootstrap';
// import 'bootstrap';
// import 'https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/js/bootstrap.bundle.min.js'; // würde auch ohne Bundler funktionieren
// import '../../../node_modules/bootstrap/dist/js/bootstrap.esm.js'; // würde auch ohne Bundler funktionieren
export interface ProductManagerApi {
init: () => void;
initProducts: () => void;
resetFields: () => void;
}
// Factory Function
const ProductManager = (el: HTMLElement | null = null): ProductManagerApi | null => {
// === DOM & VARS =======
const BASE_URL = 'http://127.0.0.1:8000';
const module = el ?? document.querySelector<HTMLElement>('.product-manager');
if (!module) {
console.error('Product Manager not found');
return null;
}
/** querySelector mit Typ-Angabe: wirft einen Fehler, wenn das Element fehlt. */
const query = <T extends HTMLElement>(root: ParentNode, selector: string): T => {
const found = root.querySelector<T>(selector);
if (!found) throw new Error(`ProductManager: Element "${selector}" nicht gefunden.`);
return found;
};
const DOM = {
module,
table: query<HTMLTableElement>(module, '.table-products'),
tBody: query<HTMLTableSectionElement>(module, 'tbody'),
inputName: query<HTMLInputElement>(module, '.input-product-name'),
inputPrice: query<HTMLInputElement>(module, '.input-product-price'),
btnAdd: query<HTMLButtonElement>(module, '.button-product-add'),
templateRow: query<HTMLTemplateElement>(module, '.template-row'),
// Nav Actions
btnSave: query<HTMLButtonElement>(module, '.button-products-save'),
btnReset: query<HTMLButtonElement>(module, '.button-products-reset'),
// Modal Edit
modalEdit: query<HTMLElement>(module, '.modal-edit'),
formEdit: query<HTMLFormElement>(module, '.form-product-edit'),
inputEditName: query<HTMLInputElement>(module, '.input-edit-name'),
inputEditPrice: query<HTMLInputElement>(module, '.input-edit-price'),
inputEditId: query<HTMLInputElement>(module, '.input-edit-id'),
inputEditPosition: query<HTMLInputElement>(module, '.input-edit-position'),
btnUpdate: query<HTMLButtonElement>(module, '.button-product-update'),
// Modal Delete
modalDelete: query<HTMLElement>(module, '.modal-delete'),
productName: query<HTMLElement>(module, 'strong.product-name'),
btnConfirmDelete: query<HTMLButtonElement>(module, '.button-confirm-delete'),
};
console.log(DOM);
const bsModalEdit = new Modal(DOM.modalEdit, {
backdrop: 'static', // true
keyboard: true,
});
const bsModalDelete = new Modal(DOM.modalDelete, {
backdrop: 'static', // true
keyboard: true,
});
// === INIT =============
const init = (): void => {
console.log('init');
// Funktionaufrufe zu beginn der Anwendung
initProducts();
// Event-Lauscher zu beginn der Anwendung
DOM.btnReset.addEventListener('click', onClickReset);
DOM.btnSave.addEventListener('click', onClickSave);
DOM.btnAdd.addEventListener('click', onClickAdd);
DOM.btnAdd.disabled = true;
DOM.btnConfirmDelete.addEventListener('click', onClickConfirmDelete);
DOM.formEdit.addEventListener('submit', onSubmitEdit);
window.addEventListener('keyup', onKeyUp);
};
// === EVENTHANDLER =====
const onKeyUp = (): void => {
// if (DOM.inputName.value === '' && DOM.inputPrice.value === '') {
// DOM.btnAdd.disabled = true;
// } else {
// DOM.btnAdd.disabled = false;
// }
DOM.btnAdd.disabled = (DOM.inputName.value === '' || DOM.inputPrice.value === ''); // prettier-ignore
};
const onClickReset = (): void => {
// async process
resetProducts().then((data) => {
if (data.success) {
Toast(data.msg, 'success').show();
loadProducts();
}
});
};
const onClickSave = (e: PointerEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
const icon = query<HTMLElement>(btnEl, 'i');
icon.classList.add('fa-jello');
// async process
saveProducts().then((data) => {
if (data.success) {
setTimeout(() => {
icon.classList.remove('fa-jello');
}, 500);
Toast(data.msg, 'success').show();
}
});
};
const onSubmitEdit = (e: SubmitEvent): void => {
e.preventDefault(); // Standardverhalten unterbinden (Formular nicht an action versenden)
// console.log(Object.entries(new FormData(DOM.formEdit)));
const product: Product = {
name: DOM.inputEditName.value,
price: Number(DOM.inputEditPrice.value),
_id: DOM.inputEditId.value,
position: Number(DOM.inputEditPosition.value),
};
// update async process
const icon = query<HTMLElement>(DOM.btnUpdate, 'i');
icon.classList.add('fa-spin');
updateProduct(product).then((data) => {
console.log(data);
if (data.success) {
Toast(data.msg, 'success').show();
icon.classList.remove('fa-spin');
loadProducts(); // All Produkte auslesen
resetFields();
bsModalEdit.hide();
} else {
Toast(data.msg, 'error').show();
}
});
};
const onClickAdd = (e: MouseEvent): void => {
console.log('click');
const product: ProductDraft = {
name: DOM.inputName.value,
price: Number(DOM.inputPrice.value),
};
createProduct(product).then((data) => {
console.log(data);
if (data.success) {
console.log('add');
Toast(data.msg, 'success').show();
loadProducts();
resetFields();
}
});
// addProduct(product);
disableNonFunctionalButtons();
};
const onClickEdit = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
const currentRow = parents(btnEl, 'tr')[0] as HTMLTableRowElement;
const id = currentRow.dataset.id ?? '';
// async fetch
getProduct(id).then((product) => {
// console.log(product);
if (product) showModalEdit(product);
});
};
const onClickRemove = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
const currentRow = parents(btnEl, 'tr')[0] as HTMLTableRowElement;
const id = currentRow.dataset.id ?? '';
const productName = query<HTMLElement>(currentRow, '.td-name').textContent?.trim() ?? '';
DOM.btnConfirmDelete.dataset.id = id;
DOM.productName.textContent = productName;
// async fetch
// deleteProduct(id).then((data) => {
// if (data.success) {
// Toast(data.msg, 'success').show();
// console.log('delete: success', data);
// loadProducts();
// } else {
// Toast(data.msg, 'error').show();
// console.error(data);
// }
// });
};
const onClickConfirmDelete = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
const id = btnEl.dataset.id ?? '';
// async fetch
deleteProduct(id).then((data) => {
if (data.success) {
Toast(data.msg, 'success').show();
bsModalDelete.hide();
loadProducts();
} else {
Toast(data.msg, 'error').show();
console.error(data);
}
});
};
const onClickMoveUp = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
// const currentRowEl = btnEl.parentNode.parentNode; // aktuelle Zeile (tr) mit dem Button
const currentRowEl = parents(btnEl, 'tr')[0] as HTMLTableRowElement;
// ParentNode.insertBefore(referenceElement, targetElement)
// DOM.tBody.insertBefore(currentRowEl, currentRowEl.previousElementSibling);
// targetElement.before(referenceElement)
currentRowEl.previousElementSibling?.before(currentRowEl);
console.log('move up');
disableNonFunctionalButtons();
};
const onClickMoveDown = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
// const currentRowEl = btnEl.parentNode.parentNode; // aktuelle Zeile (tr) mit dem Button
const currentRowEl = parents(btnEl, 'tr')[0] as HTMLTableRowElement;
// ParentNode.insertBefore(referenceElement, targetElement)
// DOM.tBody.insertBefore(currentRowEl, currentRowEl.nextElementSibling.nextElementSibling);
// targetElement.after(referenceElement)
currentRowEl.nextElementSibling?.after(currentRowEl);
console.log('move down');
disableNonFunctionalButtons();
};
// Drag 'n Drop EventHandler
const onMouseDownDrag = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
const currentRowEl = parents(btnEl, 'tr')[0] as HTMLTableRowElement;
currentRowEl.draggable = true;
};
const onMouseUpDrag = (e: MouseEvent): void => {
const btnEl = e.currentTarget as HTMLButtonElement;
const currentRowEl = parents(btnEl, 'tr')[0] as HTMLTableRowElement;
currentRowEl.draggable = false;
};
const onDragStart = (e: DragEvent): void => {
console.log('DragEvent: ', e);
const currentRowEl = e.currentTarget as HTMLTableRowElement; // tr <- aktuelle Zeie, die bewegt wird
const idx = indexOfRow(currentRowEl);
e.dataTransfer?.setData('text/plain', String(idx));
// e.dataTransfer?.setData('application/json', JSON.stringify({idx, name: sourceElement}));
console.log('tr index:', idx);
};
const onDragOver = (e: DragEvent): void => {
e.preventDefault(); // WICHTIG! Sonst funktioniert drop EventHandler nicht.
};
const onDrop = (e: DragEvent): void => {
const currentRowEl = e.currentTarget as HTMLTableRowElement; // tr <- Zielzeile, auf die gedroppt wird.
const targetIdx = indexOfRow(currentRowEl);
const sourceIdx = parseInt(e.dataTransfer?.getData('text/plain') ?? '');
// const { sourceIdx } = JSON.parse(e.dataTransfer.getData('application/json'));
console.log({ targetIdx, sourceIdx });
// Guard wenn Element auf sich selbst losgelassen wurde, abbruch
if (Number.isNaN(sourceIdx) || sourceIdx === targetIdx) {
return;
}
const draggedEl = DOM.tBody.querySelector<HTMLTableRowElement>(`tr:nth-child(${sourceIdx + 1})`);
// const draggedEl = DOM.tBody.children[sourceIdx]
if (!draggedEl) return;
// Verschiebe das Element im DOM
if (sourceIdx > targetIdx) {
currentRowEl.before(draggedEl);
} else {
currentRowEl.after(draggedEl);
}
disableNonFunctionalButtons();
};
// === XHR/FETCH ========
/** Fehler eines fetch-Aufrufs in eine ApiResponse umwandeln. */
const toErrorResponse = <TData = unknown>(error: unknown): ApiResponse<TData> => ({
msg: error instanceof Error ? error.message : String(error),
status: 0,
success: false,
});
// HTTP - Methode - PATCH
// reset products
const resetProducts = async (): Promise<ApiResponse> => {
try {
const response = await fetch(`${BASE_URL}/api/products/reset`, {
method: 'PATCH',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ reset: true }),
}); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: ApiResponse = await response.json(); // HTTP-Response
return data;
} catch (error) {
const result = toErrorResponse(error);
Toast(result.msg, 'error').show();
console.error(error);
return result;
}
};
// HTTP - Methode - PATCH
// save products
const saveProducts = async (): Promise<ApiResponse> => {
try {
const response = await fetch(`${BASE_URL}/api/products/save`, {
method: 'PATCH',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ save: true }),
}); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: ApiResponse = await response.json(); // HTTP-Response
return data;
} catch (error) {
const result = toErrorResponse(error);
Toast(result.msg, 'error').show();
console.error(error);
return result;
}
};
// HTTP - Methode - POST
// (C)RUD - create
// BRE(A)D - add - neues Produkt hinzufügen
const createProduct = async (product: ProductDraft): Promise<ApiResponse<Product>> => {
try {
const response = await fetch(`${BASE_URL}/api/products`, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(product),
}); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: ApiResponse<Product> = await response.json(); // HTTP-Response
return data;
} catch (error) {
const result = toErrorResponse<Product>(error);
Toast(result.msg, 'error').show();
console.error(error);
return result;
}
};
// HTTP - Methode - GET
// C(R)UD - Read
// (B)READ - Browse - auslesen aller Produkte
const getProducts = async (): Promise<Product[]> => {
try {
const response = await fetch(`${BASE_URL}/api/products`); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: Product[] = await response.json(); // HTTP-Response
return data;
} catch (error) {
console.error(error);
return [];
}
};
// HTTP - Methode - GET
// C(R)UD - Read
// B(R)EAD - Read - auslesen eines Produkts
const getProduct = async (id: string): Promise<Product | null> => {
try {
const response = await fetch(`${BASE_URL}/api/products/${id}`); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: Product = await response.json(); // HTTP-Response
return data;
} catch (error) {
console.error(error);
return null;
}
};
// HTTP - Methode - PUT
// CR(U)D - update
// BR(E)AD - edit - Produkt aktualisieren
const updateProduct = async (product: Product): Promise<ApiResponse<Product>> => {
try {
const response = await fetch(`${BASE_URL}/api/products`, {
method: 'PUT',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(product),
}); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: ApiResponse<Product> = await response.json(); // HTTP-Response
return data;
} catch (error) {
console.error(error);
return toErrorResponse(error);
}
};
// HTTP - Methode - DELETE
// CRU(D) - delete
// BREA(D) - delete - Produkt löschen
const deleteProduct = async (id: string): Promise<ApiResponse<string>> => {
try {
const response = await fetch(`${BASE_URL}/api/products/${id}`, {
method: 'DELETE',
headers: {
'Content-Type': 'application/json',
},
}); // HTTP Request URL
if (!response.ok) {
throw new Error('Fetch went wrong.');
}
const data: ApiResponse<string> = await response.json();
return data;
} catch (error) {
console.error(error);
return toErrorResponse(error);
}
};
// === FUNCTIONS ========
const initProducts = (): void => {
getProducts().then((products) => {
products.forEach((product) => {
addProduct(product);
});
Toast('Init products').show();
disableNonFunctionalButtons();
});
// PRODUCTS.forEach((product) => {
// addProduct(product);
// });
//disableNonFunctionalButtons();
// PRODUCTS.forEach(addProduct);
};
const loadProducts = (): void => {
DOM.tBody.innerHTML = '';
getProducts().then((data) => {
data.forEach((product) => {
addProduct(product);
});
disableNonFunctionalButtons();
});
};
const addProduct = (product: Product): void => {
const { name, price, _id: id, position } = product;
// https://developer.mozilla.org/de/docs/Web/API/HTMLTemplateElement/content
const templateEl = DOM.templateRow.content.firstElementChild;
if (!templateEl) throw new Error('ProductManager: <template class="template-row"> ist leer.');
const trEl = templateEl.cloneNode(true) as HTMLTableRowElement;
const tdNameEl = query<HTMLTableCellElement>(trEl, '.td-name');
const tdPriceEl = query<HTMLTableCellElement>(trEl, '.td-price');
const btnRemoveEl = query<HTMLButtonElement>(trEl, '.button-product-remove');
const btnMoveUpEl = query<HTMLButtonElement>(trEl, '.button-product-move-up');
const btnMoveDownEl = query<HTMLButtonElement>(trEl, '.button-product-move-down');
const btnDragEl = query<HTMLButtonElement>(trEl, '.button-drag');
const btnEditEl = query<HTMLButtonElement>(trEl, '.button-product-edit');
tdNameEl.textContent = name;
tdPriceEl.textContent = String(price);
btnEditEl.addEventListener('click', onClickEdit);
btnRemoveEl.addEventListener('click', onClickRemove);
btnMoveUpEl.addEventListener('click', onClickMoveUp);
btnMoveDownEl.addEventListener('click', onClickMoveDown);
// Drag 'n Drop Events
btnDragEl.addEventListener('mousedown', onMouseDownDrag);
btnDragEl.addEventListener('mouseup', onMouseUpDrag);
trEl.addEventListener('dragstart', onDragStart);
trEl.addEventListener('dragover', onDragOver);
trEl.addEventListener('drop', onDrop);
trEl.dataset.id = id; // <tr data-id="..." >...</tr>
trEl.dataset.position = String(position); // <tr data-position="..." >...</tr>
DOM.tBody.appendChild(trEl); // Im DOM hinzufügen
};
const showModalEdit = (product: Product): void => {
const { name = '', price = 0, _id: id, position } = product;
DOM.inputEditName.value = name;
DOM.inputEditPrice.value = String(price);
DOM.inputEditId.value = id;
DOM.inputEditPosition.value = String(position);
};
const resetFields = (): void => {
DOM.btnAdd.disabled = true;
DOM.inputPrice.value = '';
DOM.inputName.value = '';
DOM.formEdit.reset();
};
const disableNonFunctionalButtons = (): void => {
Array.from(DOM.tBody.querySelectorAll('tr')).forEach((tr) => {
const btnMoveUp = query<HTMLButtonElement>(tr, '.button-product-move-up');
const btnMoveDown = query<HTMLButtonElement>(tr, '.button-product-move-down');
btnMoveUp.disabled = !tr.previousElementSibling;
btnMoveDown.disabled = !tr.nextElementSibling;
});
};
/** Position einer Zeile innerhalb ihres Elternelements. */
const indexOfRow = (rowEl: HTMLTableRowElement): number => {
const siblings = rowEl.parentElement ? Array.from(rowEl.parentElement.children) : [];
return siblings.indexOf(rowEl);
};
// Helferfunktion aus jQuery (youmightnotjquery)
const parents = (el: Element, selector?: string): Element[] => {
const result: Element[] = [];
let current: Node | null = el.parentNode;
while (current && current !== document) {
if (current instanceof Element && (!selector || current.matches(selector))) {
result.push(current);
}
current = current.parentNode;
}
return result;
};
init();
return {
init,
initProducts,
resetFields,
};
};
// Freigabe für import
export default ProductManager;