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Persist user carts in database

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This commit is contained in:
Ruslan Bakiev
2026-04-04 09:08:42 +07:00
parent 6ea9d4e5b7
commit b01b2421b5
4 changed files with 338 additions and 0 deletions
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34
prisma/migrations/0006_cart/migration.sql Normal file
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@@ -0,0 +1,34 @@
CREATE TABLE "Cart" (
"id" TEXT NOT NULL,
"userId" TEXT NOT NULL,
"deliveryAddressId" TEXT,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"updatedAt" TIMESTAMP(3) NOT NULL,
CONSTRAINT "Cart_pkey" PRIMARY KEY ("id")
);
CREATE TABLE "CartItem" (
"id" TEXT NOT NULL,
"cartId" TEXT NOT NULL,
"productId" TEXT NOT NULL,
"productName" TEXT NOT NULL,
"sku" TEXT NOT NULL,
"isCustomizable" BOOLEAN NOT NULL DEFAULT false,
"quantity" DECIMAL(14,3) NOT NULL,
"parameters" JSONB NOT NULL,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"updatedAt" TIMESTAMP(3) NOT NULL,
CONSTRAINT "CartItem_pkey" PRIMARY KEY ("id")
);
CREATE UNIQUE INDEX "Cart_userId_key" ON "Cart"("userId");
CREATE INDEX "Cart_deliveryAddressId_idx" ON "Cart"("deliveryAddressId");
CREATE UNIQUE INDEX "CartItem_cartId_productId_key" ON "CartItem"("cartId", "productId");
CREATE INDEX "CartItem_productId_idx" ON "CartItem"("productId");
ALTER TABLE "Cart" ADD CONSTRAINT "Cart_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE "Cart" ADD CONSTRAINT "Cart_deliveryAddressId_fkey" FOREIGN KEY ("deliveryAddressId") REFERENCES "DeliveryAddress"("id") ON DELETE SET NULL ON UPDATE CASCADE;
ALTER TABLE "CartItem" ADD CONSTRAINT "CartItem_cartId_fkey" FOREIGN KEY ("cartId") REFERENCES "Cart"("id") ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE "CartItem" ADD CONSTRAINT "CartItem_productId_fkey" FOREIGN KEY ("productId") REFERENCES "Product"("id") ON DELETE CASCADE ON UPDATE CASCADE;

34
prisma/schema.prisma
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@@ -70,6 +70,7 @@ model User {
sentInvitations Invitation[] @relation("InvitationManager")
acceptedInvitations Invitation[] @relation("InvitationAcceptor")
messengerConnections MessengerConnection[]
cart Cart?
clientOrders Order[] @relation("OrderClient")
managerOrders Order[] @relation("OrderManager")
orderStatusEvents OrderStatusEvent[]
@@ -91,6 +92,7 @@ model DeliveryAddress {
unrestrictedValue String?
fiasId String?
defaultForUsers User[] @relation("UserDefaultDeliveryAddress")
carts Cart[]
orders Order[]
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
@@ -179,11 +181,43 @@ model Product {
isCustomizable Boolean @default(false)
isActive Boolean @default(true)
inventory ProductStock[]
cartItems CartItem[]
orderItems OrderItem[]
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
}
model Cart {
id String @id @default(cuid())
userId String @unique
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
deliveryAddressId String?
deliveryAddress DeliveryAddress? @relation(fields: [deliveryAddressId], references: [id], onDelete: SetNull)
items CartItem[]
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
@@index([deliveryAddressId])
}
model CartItem {
id String @id @default(cuid())
cartId String
cart Cart @relation(fields: [cartId], references: [id], onDelete: Cascade)
productId String
product Product @relation(fields: [productId], references: [id], onDelete: Cascade)
productName String
sku String
isCustomizable Boolean @default(false)
quantity Decimal @db.Decimal(14, 3)
parameters Json
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
@@unique([cartId, productId])
@@index([productId])
}
model Warehouse {
id String @id @default(cuid())
code String @unique

237
src/resolvers.js
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@@ -76,6 +76,15 @@ function normalizeOptionalText(value) {
return normalized ? normalized : null;
}
function normalizeQuantityValue(value) {
const normalized = Number(value);
if (!Number.isFinite(normalized) || normalized <= 0) {
return 0;
}
return Math.floor(normalized);
}
function isCounterpartyProfileComplete(profile) {
if (!profile) {
return false;
@@ -134,6 +143,38 @@ function withDeliveryAddressDefaultFlag(address, defaultDeliveryAddressId) {
};
}
function defaultCartParameters(product) {
return {
width: product.widthMm ?? 100,
thickness: product.thicknessMicron ?? 50,
color: 'прозрачный',
};
}
const cartInclude = {
items: {
orderBy: [{ updatedAt: 'desc' }, { createdAt: 'desc' }],
},
deliveryAddress: true,
};
async function getOrCreateCart(context, userId) {
const account = await context.prisma.user.findUnique({
where: { id: userId },
select: { defaultDeliveryAddressId: true },
});
return context.prisma.cart.upsert({
where: { userId },
update: {},
create: {
userId,
deliveryAddressId: account?.defaultDeliveryAddressId ?? null,
},
include: cartInclude,
});
}
async function enrichMessengerConnectionProfile(prisma, connection) {
if (
connection.type !== 'TELEGRAM' ||
@@ -306,6 +347,32 @@ export const resolvers = {
DeliveryAddress: {
isDefault: (address) => Boolean(address.isDefault),
},
Cart: {
deliveryAddress: async (cart, _, context) => {
if (!cart.deliveryAddressId) {
return null;
}
const [account, address] = await Promise.all([
context.prisma.user.findUnique({
where: { id: cart.userId },
select: { defaultDeliveryAddressId: true },
}),
context.prisma.deliveryAddress.findUnique({
where: { id: cart.deliveryAddressId },
}),
]);
if (!address) {
return null;
}
return withDeliveryAddressDefaultFlag(address, account?.defaultDeliveryAddressId ?? null);
},
},
CartItem: {
quantity: (item) => toFloat(item.quantity),
},
Query: {
healthcheck: () => 'ok',
@@ -319,6 +386,11 @@ export const resolvers = {
});
},
myCart: async (_, __, context) => {
const user = requireUser(context);
return getOrCreateCart(context, user.id);
},
myDeliveryAddresses: async (_, __, context) => {
const user = requireUser(context);
const [account, addresses] = await Promise.all([
@@ -678,6 +750,171 @@ export const resolvers = {
});
},
addProductToCart: async (_, { productId }, context) => {
const user = requireUser(context);
const normalizedProductId = normalizeText(productId);
if (!normalizedProductId) {
throw new Error('Product id is required.');
}
const product = await context.prisma.product.findFirst({
where: {
id: normalizedProductId,
isActive: true,
},
});
if (!product) {
throw new Error('Product is not available.');
}
const cart = await getOrCreateCart(context, user.id);
const existingItem = await context.prisma.cartItem.findFirst({
where: {
cartId: cart.id,
productId: normalizedProductId,
},
});
if (existingItem) {
await context.prisma.cartItem.update({
where: { id: existingItem.id },
data: {
quantity: Number(existingItem.quantity) + 1,
productName: product.name,
sku: product.sku,
isCustomizable: product.isCustomizable,
},
});
} else {
await context.prisma.cartItem.create({
data: {
cartId: cart.id,
productId: product.id,
productName: product.name,
sku: product.sku,
isCustomizable: product.isCustomizable,
quantity: 1,
parameters: defaultCartParameters(product),
},
});
}
return context.prisma.cart.findUnique({
where: { id: cart.id },
include: cartInclude,
});
},
updateCartItemQuantity: async (_, { input }, context) => {
const user = requireUser(context);
const normalizedProductId = normalizeText(input.productId);
if (!normalizedProductId) {
throw new Error('Product id is required.');
}
const quantity = normalizeQuantityValue(input.quantity);
const cart = await getOrCreateCart(context, user.id);
const existingItem = await context.prisma.cartItem.findFirst({
where: {
cartId: cart.id,
productId: normalizedProductId,
},
});
if (!existingItem) {
return cart;
}
if (quantity === 0) {
await context.prisma.cartItem.delete({
where: { id: existingItem.id },
});
} else {
await context.prisma.cartItem.update({
where: { id: existingItem.id },
data: { quantity },
});
}
return context.prisma.cart.findUnique({
where: { id: cart.id },
include: cartInclude,
});
},
removeCartItem: async (_, { productId }, context) => {
const user = requireUser(context);
const normalizedProductId = normalizeText(productId);
if (!normalizedProductId) {
throw new Error('Product id is required.');
}
const cart = await getOrCreateCart(context, user.id);
const existingItem = await context.prisma.cartItem.findFirst({
where: {
cartId: cart.id,
productId: normalizedProductId,
},
});
if (existingItem) {
await context.prisma.cartItem.delete({
where: { id: existingItem.id },
});
}
return context.prisma.cart.findUnique({
where: { id: cart.id },
include: cartInclude,
});
},
setCartDeliveryAddress: async (_, { addressId }, context) => {
const user = requireUser(context);
const cart = await getOrCreateCart(context, user.id);
const normalizedAddressId = normalizeOptionalText(addressId);
if (!normalizedAddressId) {
return context.prisma.cart.update({
where: { id: cart.id },
data: { deliveryAddressId: null },
include: cartInclude,
});
}
const address = await context.prisma.deliveryAddress.findFirst({
where: {
id: normalizedAddressId,
userId: user.id,
},
});
if (!address) {
throw new Error('Delivery address is not available for this user.');
}
return context.prisma.cart.update({
where: { id: cart.id },
data: { deliveryAddressId: address.id },
include: cartInclude,
});
},
clearCart: async (_, __, context) => {
const user = requireUser(context);
const cart = await getOrCreateCart(context, user.id);
await context.prisma.cartItem.deleteMany({
where: { cartId: cart.id },
});
return context.prisma.cart.findUnique({
where: { id: cart.id },
include: cartInclude,
});
},
createMyDeliveryAddress: async (_, { input }, context) => {
const user = requireUser(context);
const payload = toDeliveryAddressInputData(input);

33
src/schema.graphql
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@@ -191,6 +191,28 @@ type Product {
availableInWarehouses: [ProductWarehouseBalance!]!
}
type CartItem {
id: ID!
productId: ID!
productName: String!
sku: String!
isCustomizable: Boolean!
quantity: Float!
parameters: JSON!
createdAt: DateTime!
updatedAt: DateTime!
}
type Cart {
id: ID!
userId: ID!
deliveryAddressId: ID
deliveryAddress: DeliveryAddress
items: [CartItem!]!
createdAt: DateTime!
updatedAt: DateTime!
}
type OrderItem {
id: ID!
productId: ID
@@ -266,6 +288,7 @@ type Query {
healthcheck: String!
me: User
myCounterpartyProfile: CounterpartyProfile
myCart: Cart!
myDeliveryAddresses: [DeliveryAddress!]!
myMessengerConnections: [MessengerConnection!]!
myNotificationHistory(channel: MessengerType!, limit: Int = 50): [NotificationHistoryItem!]!
@@ -340,6 +363,11 @@ input CreateMyDeliveryAddressInput {
fiasId: String
}
input UpdateCartItemQuantityInput {
productId: ID!
quantity: Float!
}
input ReadyOrderItemInput {
productId: ID!
quantity: Float!
@@ -400,6 +428,11 @@ type Mutation {
acceptInvitation(input: AcceptInvitationInput!): User!
connectMessenger(input: ConnectMessengerInput!): MessengerConnection!
upsertMyCounterpartyProfile(input: UpsertMyCounterpartyProfileInput!): CounterpartyProfile!
addProductToCart(productId: ID!): Cart!
updateCartItemQuantity(input: UpdateCartItemQuantityInput!): Cart!
removeCartItem(productId: ID!): Cart!
setCartDeliveryAddress(addressId: ID): Cart!
clearCart: Cart!
createMyDeliveryAddress(input: CreateMyDeliveryAddressInput!): DeliveryAddress!
setMyDefaultDeliveryAddress(addressId: ID!): DeliveryAddress!
deleteMyDeliveryAddress(addressId: ID!): Boolean!