basic shop operations

README.md

@@ -0,0 +1,223 @@
+Shop basic backend
+=====
+
+```
+        type Query {
+            login(login: String!, password: String!): String
+
+            categories: [Category]
+            category(_id: ID!): Category
+
+            goods: [Good]
+            good(_id: ID!): Good
+
+            myOrders: [Order]
+            orders: [Order]
+        }
+        type Mutation {
+            createUser(login: String!, password: String!): User
+            changePassword(password: String!): User
+
+            setCategory(cat: CategoryInput!):Category
+            setGood(good: GoodInput!):Good
+            setOrder(order: OrderInput):Order
+            setOrderGood(orderGood: OrderGoodInput):OrderGood
+        }
+
+        type User {
+             _id: String
+             login: String
+             nick : String
+             orders: [Order]
+        }
+
+        type Category {
+            _id: ID,
+            name: String!,
+            goods: [Good]
+        }
+
+        type Good {
+            _id: ID,
+            name: String!,
+            description: String
+            price: Float
+            orderGoods: [OrderGood]
+            categories: [Category]
+        }
+
+        type OrderGood {
+            _id: ID,
+            price: Float,
+            count: Float,
+            good: Good,
+            order: Order
+        }
+
+        type Order {
+            _id: ID
+            orderGoods: [OrderGood]
+        }
+
+
+        input UserInput {
+             _id: String
+             login: String
+             nick : String
+        }
+
+        input CategoryInput {
+            _id: ID,
+            name: String!,
+            goods: [ID]
+        }
+
+        input GoodInput {
+            _id: ID,
+            name: String!,
+            description: String
+            price: Float
+            categories: [ID]
+        }
+
+        input OrderGoodInput {
+            _id: ID,
+            count: Int!,
+            good: ID!,
+            order: ID!
+        }
+
+        input OrderInput {
+            _id: ID
+            orderGoods: [ID]
+        }
+```
+
+
+примеры запросов:
+```
+mutation createUser($login:String!, $password:String!){
+  createUser(login:$login, password:$password){
+    _id, login    
+  }  
+}
+
+query login($login:String!, $password:String!){
+  login(login:$login, password:$password)
+}
+
+mutation pwd($password:String!){
+  changePassword(password: $password){
+    _id, login
+	}
+}
+
+mutation cc($cat:CategoryInput!){
+  setCategory(cat:$cat){
+    _id, name
+  }
+}
+
+query cats{
+  categories{
+    _id, name, goods{
+      name, description
+    }
+  }
+}
+
+query cat($_id:ID!){
+  category(_id:$_id){
+    _id, name
+  }
+}
+
+
+mutation cg($good:GoodInput!){
+  setGood(good:$good){
+    _id, name, description, price
+  }
+}
+
+query goods{
+  goods{
+    _id, name, description
+  }
+}
+
+query good($_id:ID!){
+  good(_id:$_id){
+    _id, name, description
+  }
+}
+
+mutation sO($order:OrderInput!){
+  setOrder(order:$order){
+		_id   
+		orderGoods{
+      _id, price, count,
+      good{
+        _id, name
+      }
+    }
+  }
+}
+
+mutation sOG($orderGood:OrderGoodInput!){
+  setOrderGood(orderGood:$orderGood){
+		_id,
+		good{
+      _id, name, price
+    },
+		price,
+		order{
+      _id
+    }
+	}
+}
+
+query mO{
+  myOrders{
+    _id,
+    orderGoods{
+      _id,
+			price,
+      count
+      good{
+        name, price
+      }
+    }
+  }
+}
+```
+
+
+переменные:
+
+```
+{
+  "login": "foo",
+  "password": "bar",
+	"cat": {
+		"_id": "5d3868a23aa7106a3a4369e6",
+		"name": "Cars",
+    "goods":["5d3874e8271cb784ad1d65a7"]
+  },
+	"_id": "5d3874e8271cb784ad1d65a7",
+	"good": {
+	  "_id": "5d3874e8271cb784ad1d65a7",
+    "name": "iPhone",
+	   "description": "apple",
+		"price": 500,
+		"categories": ["5d3869cc216a156eba15b8db"]
+  },
+  "order":{
+  
+  },
+	"orderGood": {
+    "good": "5d3874e8271cb784ad1d65a7",
+		"order": "5d388f0786f70ff605a78700",
+		"count": 2
+  }
+}
+```

index.js

@@ -0,0 +1,419 @@
+const ObjectID    = require("mongodb").ObjectID;
+const jwt         = require('jsonwebtoken')
+const jwtSecret   = 'CbymrfGfnB'
+
+const anonResolvers = ['login', 'createUser'];
+
+
+;(async () => {
+    const {Savable, slice, getModels} = await require('./models.js')()
+
+    class User extends Savable {
+        static get relations(){
+            return {
+            }
+        }
+    }
+    Savable.addClass(User)
+
+    const express = require('express');
+    const express_graphql = require('express-graphql');
+    const { buildSchema } = require('graphql');
+
+
+    const schema = buildSchema(`
+        type Query {
+            login(login: String!, password: String!): String
+
+            categories: [Category]
+            category(_id: ID!): Category
+
+            goods: [Good]
+            good(_id: ID!): Good
+
+            myOrders: [Order]
+            orders: [Order]
+        }
+        type Mutation {
+            createUser(login: String!, password: String!): User
+            changePassword(password: String!): User
+
+            setCategory(cat: CategoryInput!):Category
+            setGood(good: GoodInput!):Good
+            setOrder(order: OrderInput):Order
+            setOrderGood(orderGood: OrderGoodInput):OrderGood
+        }
+
+        type User {
+             _id: String
+             login: String
+             nick : String
+             orders: [Order]
+        }
+
+        type Category {
+            _id: ID,
+            name: String!,
+            goods: [Good]
+        }
+
+        type Good {
+            _id: ID,
+            name: String!,
+            description: String
+            price: Float
+            orderGoods: [OrderGood]
+            categories: [Category]
+        }
+
+        type OrderGood {
+            _id: ID,
+            price: Float,
+            count: Float,
+            good: Good,
+            order: Order
+        }
+
+        type Order {
+            _id: ID
+            orderGoods: [OrderGood]
+        }
+
+
+        input UserInput {
+             _id: String
+             login: String
+             nick : String
+        }
+
+        input CategoryInput {
+            _id: ID,
+            name: String!,
+            goods: [ID]
+        }
+
+        input GoodInput {
+            _id: ID,
+            name: String!,
+            description: String
+            price: Float
+            categories: [ID]
+        }
+
+        input OrderGoodInput {
+            _id: ID,
+            count: Int!,
+            good: ID!,
+            order: ID!
+        }
+
+        input OrderInput {
+            _id: ID
+            orderGoods: [ID]
+        }
+    `);
+
+
+
+    var app = express();
+    app.use(express.static('public'));
+
+    const rootResolvers = {
+        createUser:async function ({login, password}){
+            let user =  await Savable.m.User.findOne({login, password})
+            if (user)
+                return null;
+            user = await (new User({login, password})).save()
+
+            user.___owner = user._id.toString()
+            user.___permissions = {
+                read: ["owner", "user"]
+            }
+
+            return await user.save()
+        },
+
+        login: async function({login, password}){
+            console.log(Savable.classes)
+            const user =  await Savable.m.User.findOne({login, password})
+            if (!user)
+                return null;
+
+            const token = jwt.sign({ sub: {id: user._id, login}}, jwtSecret); //подписывам токен нашим ключем
+            return token
+        },
+
+        changePassword:async function ({password}, {jwt: {id}, models: {SlicedSavable, User}} ){
+            id = new ObjectID(id)
+
+            const user =  await SlicedSavable.m.User.findOne({_id: id})
+            if (!user)
+                return null;
+            user.password = password;
+            return await user.save()
+        },
+
+        async setCategory({cat}, {jwt: {id}, models: {SlicedSavable, Category}}){
+            if ('_id' in cat){
+                let entity = await SlicedSavable.m.Category.findOne({_id: ObjectID(cat._id)})
+                console.log(entity)
+                if (entity){
+                    entity.name = cat.name
+                    if (cat.goods){
+                        entity.goods = []
+                        for (goodId of cat.goods){
+                            let good = await SlicedSavable.m.Good.findOne({_id: ObjectID(goodId)});
+                            good && entity.goods.push(good)
+                        }
+                    }
+                    return await entity.save()
+                }
+            }
+            return await (new Category(cat)).save()
+        },
+
+        async categories({}, {jwt: {id}, models: {SlicedSavable, Category}}){
+            categories = []
+            for (let category of SlicedSavable.m.Category.find({})){
+                try {category = await category} catch (e) { break }
+                categories.push(category)
+            }
+            return categories;
+        },
+
+        async category({_id}, {jwt: {id}, models: {SlicedSavable, Category}}){
+            return await SlicedSavable.m.Category.findOne({_id: ObjectID(_id)});
+        },
+
+
+        async setGood({good}, {jwt: {id}, models: {SlicedSavable, Good}}){
+            if ('_id' in good){
+                let entity = await SlicedSavable.m.Good.findOne({_id: ObjectID(good._id)})
+                if (entity){
+                    entity.name         = good.name
+                    entity.description  = good.description
+                    entity.price        = good.price      
+                    if (good.categories){
+                        console.log(good.categories)
+                        entity.categories = []
+                        for (catId of good.categories){
+                            let cat = await SlicedSavable.m.Category.findOne({_id: ObjectID(catId)});
+                            cat && entity.categories.push(cat)
+                        }
+                    }
+                    return await entity.save()
+                }
+            }
+            return await (new Good(good)).save()
+        },
+
+        async goods({}, {jwt: {id}, models: {SlicedSavable, Good}}){
+            goods = []
+            for (let good of SlicedSavable.m.Good.find({})){
+                try {good = await good} catch (e) { break }
+                goods.push(good)
+            }
+            return goods;
+        },
+
+        async good({_id}, {jwt: {id}, models: {SlicedSavable, Good}}){
+            return await SlicedSavable.m.Good.findOne({_id: ObjectID(_id)});
+        },
+
+
+
+        async setOrder({order}, {jwt: {id}, models: {SlicedSavable, Order, thisUser}}){
+            if ('_id' in order){
+                let entity = await SlicedSavable.m.Order.findOne({_id: ObjectID(good._id)})
+                if (entity){
+                    //entity.name         = good.name
+                    //entity.description  = good.description
+                    if (order.orderGoods){
+                        entity.orderGoods = []
+                        for (orderGoodId of entity.orderGoods){
+                            let orderGood = await SlicedSavable.m.OrderGood.findOne({_id: ObjectID(orderGoodId)});
+                            orderGood && entity.orderGoods.push(orderGood)
+                        }
+                    }
+                    entity.user = thisUser
+                    return await entity.save()
+                }
+            }
+            order.user = thisUser
+            return await (new Order(order)).save()
+        },
+
+        async orders({}, {jwt: {id}, models: {SlicedSavable}}){
+            orders = []
+            for (let order of SlicedSavable.m.Order.find({})){
+                try {order = await order} catch (e) { break }
+                orders.push(order)
+            }
+            return order;
+        },
+
+        async myOrders({}, {jwt: {id}, models: {SlicedSavable}}){
+            orders = []
+            for (let order of SlicedSavable.m.Order.find({___owner: id.toString(id)})){
+                try {order = await order} catch (e) { break }
+                orders.push(order)
+            }
+            return orders;
+        },
+
+        async order({_id}, {jwt: {id}, models: {SlicedSavable, Good}}){
+            return await SlicedSavable.m.Order.findOne({_id: ObjectID(_id)});
+        },
+
+
+
+        async setOrderGood({orderGood}, {jwt: {id}, models: {SlicedSavable, OrderGood, thisUser}}){
+            console.log(orderGood)
+            let order  = await SlicedSavable.m.Order.findOne({'_id': ObjectID(orderGood.order)})
+            let good   = await SlicedSavable.m.Good.findOne ({'_id': ObjectID(orderGood.good)})
+            if (order && good){
+                let entity = await SlicedSavable.m.OrderGood.findOne({'order._id': order._id,
+                                                                         'good._id':  good._id})
+                if (!entity){
+                    entity = new OrderGood({})
+                }
+
+                entity.price = good.price
+                entity.count = orderGood.count
+                entity.order = order
+                entity.good  = good
+                await entity.save()
+                console.log(entity)
+
+                return entity
+            }
+            return null;
+        },
+
+
+
+        async createEvent({name, total}, {jwt: {id}, models: {Event}}){
+            return await (new Event({name, total})).save()
+        },
+
+        async changeEvent({eventId, name, total}, {jwt: {id}, models: {SlicedSavable}}){
+            const event = await SlicedSavable.m.Event.findOne({_id: ObjectID(eventId)})
+            if (!event)
+                return null;
+
+            event.name  = name
+            event.total = total
+            return await event.save()
+        },
+
+        async events({}, {jwt: {id}, models: {SlicedSavable}}){
+            let events = []
+            for (let event of SlicedSavable.m.Event.find({})){
+                event = await event
+                //const {_id, name, owner, moneyEvents, usersSum, moneyDiff, total} = event
+                //event = {_id, name, owner, moneyEvents, usersSum: await event.usersSum,  total}
+                //console.log(event)
+                events.push(event)
+            }
+
+            return events;
+        },
+
+        async event({eventId}, {jwt: {id}, models: {SlicedSavable}}){
+            return await SlicedSavable.m.Event.findOne({_id: ObjectID(eventId)});
+        },
+
+
+        async createEventMoney({eventId, amount}, {jwt: {id}, models: {SlicedSavable, EventMoney, thisUser}}){
+            let eventMoney = await SlicedSavable.m.EventMoney.findOne({"user._id": ObjectID(id), "event._id": ObjectID(eventId)})
+            if (eventMoney){
+                eventMoney.amount = amount;
+                return await eventMoney.save()
+            }
+
+            const event = await SlicedSavable.m.Event.findOne({_id: ObjectID(eventId)})
+            if (!event)
+                return null;
+
+            if (!thisUser)
+                return null;
+
+            console.log(thisUser, event, amount)
+
+            return await (new EventMoney({user: thisUser, event, amount})).save()
+        },
+
+
+        async eventMoneysByEvent({eventId}, {jwt: {id}, models: {SlicedSavable}}){
+            const event =  await SlicedSavable.m.Event.findOne({_id: ObjectID(eventId)});
+            if (!event)
+                return null
+
+            const moneys = [];
+
+            for (let money of event.moneyEvents){
+                try {
+                    await money
+                    console.log(money)
+                }
+                catch (e){
+                    console.log('skip no access user' ,e)
+                }
+                moneys.push(money)
+                console.log('in loop')
+            }
+
+            console.log('after loop')
+
+            return moneys;
+        },
+
+
+        async eventMoneys({}, {jwt: {id}, models: {SlicedSavable}}){
+            const me =  await SlicedSavable.m.User.findOne({_id: ObjectID(id)});
+            if (!me)
+                return null
+
+            const moneys = [];
+
+            for (let money of me.moneyEvents){
+                moneys.push(await money)
+            }
+
+            return moneys;
+        },
+
+    }
+
+    app.use('/graphql', express_graphql(async (req, res, gql) => { 
+        if (gql.operationName === null || anonResolvers.includes(gql.operationName))
+            return {
+                schema: schema,
+                rootValue: rootResolvers,
+                graphiql: true, 
+            }
+        
+        const authorization = req.headers.authorization 
+        if (authorization && authorization.startsWith('Bearer ')){
+            console.log('token provided')
+            const token = authorization.substr("Bearer ".length)
+            const decoded = jwt.verify(token, jwtSecret)
+            if (decoded){
+                console.log('token verified', decoded)
+
+                let slicedModels  = await getModels(decoded.sub.id)
+
+                return {
+                    schema: schema,
+                    rootValue: rootResolvers,
+                    graphiql: true, 
+                    context: {jwt: decoded.sub,
+                              models: slicedModels}
+                }
+            }
+        }
+    }))
+
+    app.listen(4000, () => console.log('Express GraphQL Server Now Running On localhost:4000/graphql'));
+})()
+

models.js

@@ -0,0 +1,97 @@
+const MongoClient = require("mongodb").MongoClient;
+const ObjectID    = require("mongodb").ObjectID;
+const {connect}          = require('mm')
+
+module.exports = async (dbName='shop') => {
+    const {Savable, slice} = await connect(dbName)
+
+    async function getModels(id){
+        const SlicedSavable = slice([id, 'user', 'admin'])
+
+        class User extends SlicedSavable {
+            constructor(...params){
+                super(...params)
+                this.orders = this.orders instanceof Array ? this.orders : (this.orders ? [this.orders] : []) 
+            }
+
+            static get relations(){
+                return {
+                    orders: "user"
+                }
+            }
+        }
+        SlicedSavable.addClass(User)
+
+        class Good extends SlicedSavable {
+            constructor(...params){
+                super(...params)
+                this.categories = this.category instanceof Array ? this.category : (this.category ? [this.category] : []) 
+                this.orderGoods = this.orderGoods instanceof Array ? this.orderGoods : (this.orderGoods ? [this.orderGoods] : []) 
+            }
+
+            static get relations(){
+                return {
+                    categories: "goods",
+                    orderGoods: "good",
+                }
+            }
+        }
+        SlicedSavable.addClass(Good)
+
+        class Category extends SlicedSavable {
+            constructor(...params){
+                super(...params)
+                this.goods = this.goods instanceof Array ? this.goods : (this.goods ? [this.goods] : []) 
+            }
+
+            static get relations(){
+                return {
+                    goods: "categories",
+                }
+            }
+        }
+        SlicedSavable.addClass(Category)
+
+        class Order extends SlicedSavable {
+            constructor(...params){
+                super(...params)
+                this.orderGoods = this.orderGoods instanceof Array ? this.orderGoods : (this.orderGoods ? [this.orderGoods] : []) 
+            }
+
+            static get relations(){
+                return {
+                    user: "orders",
+                    orderGoods: "order"
+                }
+            }
+        }
+        SlicedSavable.addClass(Order)
+
+        class OrderGood extends SlicedSavable {
+            constructor(...params){
+                super(...params)
+            }
+
+            static get relations(){
+                return {
+                    good: "orderGoods",
+                    order: "orderGoods"
+                }
+            }
+        }
+        SlicedSavable.addClass(OrderGood)
+
+        const thisUser = await Savable.m.User.findOne({_id: ObjectID(id)})
+
+        return {
+            SlicedSavable, User, Good, Category, Order, OrderGood
+        }
+    }
+
+    return {
+        Savable, 
+        slice,
+        getModels
+    }
+}
+

package-lock.json

@@ -0,0 +1,608 @@
+{
+  "name": "shop",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
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+      }
+    },
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+}

package.json

@@ -0,0 +1,29 @@
+{
+  "name": "shop",
+  "version": "1.0.0",
+  "description": "Mock back for frontend students",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@gitlab.a-level.com.ua:gitgod/shop.git"
+  },
+  "keywords": [
+    "node",
+    "mm",
+    "mongo",
+    "graphql",
+    "shop"
+  ],
+  "author": "Ivan Grynkin",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.17.1",
+    "express-graphql": "^0.9.0",
+    "graphql": "^14.4.2",
+    "jsonwebtoken": "^8.5.1",
+    "mm": "git+ssh://git@gitlab.a-level.com.ua:gitgod/mm.git"
+  }
+}