diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..40b878db --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +node_modules/ \ No newline at end of file diff --git a/README.md b/README.md index 5b53a0b1..6d16d3fd 100644 --- a/README.md +++ b/README.md @@ -1,38 +1,83 @@ -# Harbor Take Home Project +# Calendar Booking API Documentation -Welcome to the Harbor take home project. We hope this is a good opportunity for you to showcase your skills. +## Overview +This API provides a flexible calendar booking system with user-specific availability and event management. -## The Challenge +## Endpoints -Build us a REST API for calendly. Remember to support +### User Management +- **Create User** + - `POST /user` + - Creates a new user with default empty and available slots + - Response: User details with a unique user ID -- Setting own availability -- Showing own availability -- Finding overlap in schedule between 2 users +### Slot Management +- **Get Available Slots** + - `GET /:userId/get-slots` + - Retrieves available slots for a specific user + - Query Parameters: + - `startTime`: Beginning of the time range + - `endTime`: End of the time range + - Response: List of available time slots -It is up to you what else to support. +- **Set User Availability** + - Restricted to the user themselves + - Allows setting personal available time slots -## Expectations +### Event Booking +- **Book a Slot** + - Booking process with intelligent conflict checking: + 1. Validates if the requested slot is within user's availability + 2. Checks for existing event conflicts + 3. Provides warning if conflicts exist + 4. Allows booking even with conflicts -We care about +- **Get Existing Slots** + - `GET /:userId/slots` + - Retrieves all existing booked slots for a user -- Have you thought through what a good MVP looks like? Does your API support that? -- What trade-offs are you making in your design? -- Working code - we should be able to pull and hit the code locally. Bonus points if deployed somewhere. -- Any good engineer will make hacks when necessary - what are your hacks and why? +- **Cancel Event** + - Allows cancellation of a specific event for a user -We don't care about +- **Event Acceptance** + - `PATCH /:userId/accept-event/:eventId` + - Allows user to accept or reject a proposed event + - User receives a notification (future implementation) -- Authentication -- UI -- Perfection - good and working quickly is better +### Conflict Management +- **Check User Conflicts** + - Identifies and reports scheduling conflicts between two users -It is up to you how much time you want to spend on this project. There are likely diminishing returns as the time spent goes up. +## Booking Logic Details +- Slot booking checks: + - Validates slot against user's availability + - Detects scheduling conflicts + - Provides conflict warnings + - Allows flexible booking with user consent -## Submission +## Assumptions +- Users are on the same tz i.e UTC +- Conflicts while blocking a calendar is acceptable and the user gets a choice to accept the meeting +- Meetings can be scheduled with users in and out of the org +- if user has mentioned available slots - it is a hard pass on any other slots. -Please fork this repository and reach out to Prakash when finished. +## Hacks +- Passing emailId in headers for a few validations instead of authentication +- used renderer for deployment -## Next Steps +## Future Enhancements +- Notification system for event requests +- Timezone management +- More granular conflict resolution -After submission, we will conduct a 30 to 60 minute code review in person. We will ask you about your thinking and design choices. +## Note +- Conflict handling allows flexibility while maintaining user control + +## Postman Doc URL +- https://documenter.getpostman.com/view/21104624/2sAYBViBrF + + +## Hosted on: +- https://calendly-sm8z.onrender.com +- This is a free tier and can be slow, kindly reach out to me if its not working +- Repo can be cloned and postman docs can be refered to hit the APIs locally in the worst case scenario \ No newline at end of file diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 00000000..5f39bbd8 --- /dev/null +++ b/package-lock.json @@ -0,0 +1,1445 @@ +{ + "name": "coding-project", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "dependencies": { + "express": "^4.21.1", + "mongodb": "^6.11.0", + "mongoose": "^8.8.2", + "node": "^20.18.1", + "nodemon": "^3.1.7", + "uuidv4": "^6.2.13" + }, + "devDependencies": { + "@types/express": "^5.0.0", + "@types/node": "^22.10.0", + 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warning : responseObj.message; + res.status(200).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } + + static async getEvents(req, res) { + const responseObj = { + message: "Successfully retrieved events", + data: [], + meta: { + success: true + } + } + try { + const { startDate, endDate } = req.query; + const { userId } = req.params; + const findInsertionPointLogic = new FindInsertionPointLogic(new Date(startDate)); + const getEventsLogic = new GetEventsLogic(new Date(startDate), new Date(endDate), userId, findInsertionPointLogic); + const events = await getEventsLogic.execute(); + responseObj.data = events as any; + res.status(200).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } + + static async cancelEvent(req, res) { + const responseObj = { + message: "Successfully cancelled event", + data: {}, + meta: { + success: true + } + } + try { + const { eventId } = req.params; + const removeEventLogic = new RemoveEventLogic(eventId); + await removeEventLogic.execute(); + res.status(200).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } + + static async getConflicts(req, res) { + const responseObj = { + message: "Successfully retrieved conflicts", + data: {}, + meta: { + success: true + } + } + try { + const { firstUserId, secondUserId } = req.query; + const findConflictsLogic = new FindConflictsLogic(firstUserId, secondUserId); + const { conflicts, overlappingEvents } = await findConflictsLogic.execute(); + responseObj.data = { conflicts, overlappingEvents } + res.status(200).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } + + static async setAvailableSlots(req, res) { + const responseObj = { + message: "Successfully set available slots", + data: {}, + meta: { + success: true + } + } + try { + const { availableSlots } = req.body; + const { userId } = req.params; + const {email} = req.headers; + if(!userId || !availableSlots) { + throw { status: 400, message: "Please provide a user id and available slots" }; + } + const setAvailableSlotsLogic = new SetAvailableSlots(availableSlots, userId, email); + const { failedToSetAvailableSlots, processedAvailableSlots } = await setAvailableSlotsLogic.execute(); + responseObj.data = { failedToSetAvailableSlots, processedAvailableSlots }; + responseObj.message = failedToSetAvailableSlots.length > 0 ? "Some slots could not be set as available" : responseObj.message; + res.status(201).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } + + static async acceptEvent(req, res) { + const responseObj = { + message: "Successfully accepted event", + data: {}, + meta: { + success: true + } + } + try { + const { userId, eventId } = req.params; + const { email } = req.headers; + if(!userId || !eventId) { + throw { status: 400, message: "Please provide a user id and event id" }; + } + const acceptEventLogic = new AcceptEventLogic(userId, eventId, email); + await acceptEventLogic.execute(); + res.status(201).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } +} \ No newline at end of file diff --git a/src/controllers/user.contoller.ts b/src/controllers/user.contoller.ts new file mode 100644 index 00000000..aef43ef9 --- /dev/null +++ b/src/controllers/user.contoller.ts @@ -0,0 +1,52 @@ +import { CreateUserLogic } from "../logics/createUser.logic"; +import { Request, Response } from "express"; +import { GetAllUsersLogic } from "../logics/getAllUsers.logic"; + +export class UserController { + + static async create(req: Request, res: Response) { + const responseObj = { + message: "Successfully created user", + data: {}, + meta: { + success: true + } + } + try { + const { name, email } = req.body; + if(!name || !email) { + throw { status: 400, message: "Please provide a name and email" }; + } + const createUserLogic = new CreateUserLogic(name, email); + await createUserLogic.execute(); + res.status(201).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } + + static async get(req: Request, res: Response) { + const responseObj = { + message: "Successfully fetched users", + data: {}, + meta: { + success: true + } + } + try { + const { search } = req.query; + const getAllUsersLogic = new GetAllUsersLogic(search as string); + const users = await getAllUsersLogic.execute(); + responseObj.data = { users }; + res.status(200).json(responseObj); + } catch(e) { + const status = e.status || 500; + responseObj.message = e.message || "Internal server error"; + responseObj.meta.success = false; + res.status(status).json(responseObj); + } + } +} \ No newline at end of file diff --git a/src/database/dbConnection.ts b/src/database/dbConnection.ts new file mode 100644 index 00000000..8d1cf24a --- /dev/null +++ b/src/database/dbConnection.ts @@ -0,0 +1,45 @@ +import mongoose from 'mongoose'; + +export class DatabaseConnection { + private static instance: DatabaseConnection; + + private constructor() { + // Private constructor to prevent direct instantiation + } + + public static getInstance(): DatabaseConnection { + if (!DatabaseConnection.instance) { + DatabaseConnection.instance = new DatabaseConnection(); + } + return DatabaseConnection.instance; + } + + static async connect() { + try { + // Specify the database name explicitly + const connectionString = 'mongodb+srv://public:publicpass1234@cluster0.xevrr.mongodb.net/calendly'; + + await mongoose.connect(connectionString, { + // For newer Mongoose versions, use these options + serverSelectionTimeoutMS: 5000, + socketTimeoutMS: 45000, + family: 4 // Use IPv4, skip trying IPv6 + }); + + console.log('Successfully connected to MongoDB'); + return this; + } catch (error) { + console.error('MongoDB connection error:', error); + throw error; + } + } + + static async disconnect() { + try { + await mongoose.disconnect(); + console.log('Disconnected from MongoDB'); + } catch (error) { + console.error('Error disconnecting from MongoDB:', error); + } + } +} \ No newline at end of file diff --git a/src/enums/eventType.enum.ts b/src/enums/eventType.enum.ts new file mode 100644 index 00000000..faa59707 --- /dev/null +++ b/src/enums/eventType.enum.ts @@ -0,0 +1,7 @@ +export enum EventType { + "MEETING" = "MEETING", + "OOO" = "OOO", + "BREAK" = "BREAK", + "PERSONAL" = "PERSONAL", + "CONFLICT" = "CONFLICT", +} \ No newline at end of file diff --git a/src/interfaces/events.interface.ts b/src/interfaces/events.interface.ts new file mode 100644 index 00000000..6971ac1e --- /dev/null +++ b/src/interfaces/events.interface.ts @@ -0,0 +1,32 @@ +import { ObjectId } from "mongodb"; +import { EventType } from "../enums/eventType.enum"; +import { IAvailableSlot } from "../logics/setAvailableSlots.logic"; + +export interface ITimeBlock { + startTime: Date; + endTime: Date; + eventType: EventType; + eventId: string; + title?: string; + description?: string; + memberEmail?: string; + senderEmail: string; + isConflicted: boolean; + isAccepted?: boolean; +} + +export interface IEvent { + userId: ObjectId | any; + timezone: string; + blocks: ITimeBlock[]; + availableSlots: ITimeBlock[]; +} + +export interface IEventModel { + findEvent: (userId: ObjectId) => Promise; + addBlock: (userId: ObjectId, blocks: ITimeBlock) => Promise; + findEventsForMultipleUsers: (userIds: ObjectId[]) => Promise; + setAvailableSlots: (userId: ObjectId, availableSlots: IAvailableSlot[]) => Promise; + acceptEvent: (userId: ObjectId, eventId: string) => Promise; + removeEvent: (eventId: string) => Promise; +} \ No newline at end of file diff --git a/src/interfaces/logic.interface.ts b/src/interfaces/logic.interface.ts new file mode 100644 index 00000000..2ec9fa9a --- /dev/null +++ b/src/interfaces/logic.interface.ts @@ -0,0 +1,3 @@ +export interface ILogic { + execute(params?: any): Promise | T; +} \ No newline at end of file diff --git a/src/interfaces/user.interface.ts b/src/interfaces/user.interface.ts new file mode 100644 index 00000000..2b104891 --- /dev/null +++ b/src/interfaces/user.interface.ts @@ -0,0 +1,14 @@ +import { ObjectId } from "mongodb"; + +export interface IUser { + _id?: ObjectId; + name: String; + email: String; +} + + +export interface IUserModel { + createUser(userDetails: IUser): Promise; + getUserByEmail(email: string): Promise; + get(search: string): Promise; +} \ No newline at end of file diff --git a/src/logics/acceptEvent.logic.ts b/src/logics/acceptEvent.logic.ts new file mode 100644 index 00000000..5d8ef82b --- /dev/null +++ b/src/logics/acceptEvent.logic.ts @@ -0,0 +1,33 @@ +import { ObjectId } from "mongodb"; +import { UserModel } from "../models/user.model"; +import { EventModel } from "../models/event.model"; + +export class AcceptEventLogic { + + constructor( + protected userId: string, + protected eventId: string, + protected requesterEmail: string + ) {} + + async execute() { + try { + await this.validate(); + await EventModel.acceptEvent(new ObjectId(this.userId), this.eventId); + + } catch(e) { + console.log(`Error in AcceptEventLogic.execute: ${e}`); + } + } + + async validate() { + try { + const userDoc = await UserModel.getUserByEmail(this.requesterEmail); + if(userDoc?._id.toString() !== this.userId) { + throw {status: 403, message: "Forbidden to accept event for this user"}; + } + } catch(e) { + console.log(`Error in AcceptEventLogic.validate: ${e}`); + } + } +} \ No newline at end of file diff --git a/src/logics/addEvent.logic.ts b/src/logics/addEvent.logic.ts new file mode 100644 index 00000000..04a59886 --- /dev/null +++ b/src/logics/addEvent.logic.ts @@ -0,0 +1,103 @@ +import { ObjectId } from "mongodb"; +import { ITimeBlock } from "../interfaces/events.interface"; +import { EventModel } from "../models/event.model"; +import { UserModel } from "../models/user.model"; + +export class AddEventLogic { + userName: string; + userEmail: string; + blocks: ITimeBlock[]; + respWarning: any = ""; + conflictEventTitle: string = ""; + senderUserId: ObjectId; + availableSlots: any[]; + constructor( + protected newBlock: ITimeBlock, + protected findInsertionPointLogic: any, + protected userId: ObjectId + ) {} + + async execute() { + try { + await this.checkSenderConflicts(); + await this.getBlocks(); + if(this.availableSlots?.length) { + const sortedAvailableSlots = this.availableSlots.sort((a, b) => a.startTime - b.startTime); + if(!(this.newBlock.startTime >= sortedAvailableSlots[0].startTime && this.newBlock.endTime <= sortedAvailableSlots[sortedAvailableSlots.length - 1].endTime)) { + this.respWarning = `You can't book a slot outside of the available timings`; + return this.respWarning; + } + } + if (this.hasConflict()) { + this.respWarning = `${this.userName} has a conflict with: ${this.conflictEventTitle}`; + this.newBlock.isConflicted = true; + } + + + this.blocks.splice(this.findInsertionPointLogic.execute(this.newBlock.startTime), 0, this.newBlock); + if(this.senderUserId) { + /** + * If sender exists in calendly's db - add the same block to sender's blocks. + * Available timings validations is not required for sender + * default isAccepted is true + */ + this.newBlock.memberEmail = this.userEmail; + this.newBlock.isAccepted = true; + await EventModel.addBlock(this.senderUserId, this.newBlock); + } + this.newBlock.memberEmail = this.newBlock.senderEmail; + this.newBlock.isAccepted = false; + await EventModel.addBlock(this.userId, this.newBlock); + /** send email: not integrated */ + return this.respWarning; + } catch(e) { + console.log(`Error in AddEventLogic.execute: ${e}`); + throw e; + } + + } + + protected hasConflict(): boolean { + // Binary search to find potential conflicts + const startIdx = this.findInsertionPointLogic.execute(this.newBlock.startTime); + // Check blocks that could potentially overlap + for (let i = startIdx; i < this.blocks.length; i++) { + const block = this.blocks[i]; + // If we've reached a block that starts after our new block ends, + // we can stop checking + if (block.startTime >= this.newBlock.endTime) break; + + // Check for overlap + if (this.newBlock.startTime < block.endTime && + this.newBlock.endTime > block.startTime) { + this.conflictEventTitle = block.title; + return true; + } + } + return false; + } + + async getBlocks(): Promise { + const event = await EventModel.findEvent(this.userId); + this.userName = event?.userId?.name; + this.userEmail = event?.userId?.email; + this.availableSlots = event?.availableSlots || []; + this.blocks = event?.blocks || []; + } + + async checkSenderConflicts(): Promise { + const senderEmail = this.newBlock.senderEmail; + const senderUser = await UserModel.getUserByEmail(senderEmail); + if(senderUser) { + this.senderUserId = senderUser._id;; + const senderEvent = await EventModel.findEvent(senderUser._id); + if(senderEvent) { + this.blocks = senderEvent.blocks || []; + if(this.hasConflict()) { + this.newBlock.isConflicted = true; + this.respWarning = `You have a conflict with: ${this.conflictEventTitle}`; + } + } + } + } +} \ No newline at end of file diff --git a/src/logics/availableSlots.logic.ts b/src/logics/availableSlots.logic.ts new file mode 100644 index 00000000..a1bf0ef9 --- /dev/null +++ b/src/logics/availableSlots.logic.ts @@ -0,0 +1,85 @@ +import { ITimeBlock } from "../interfaces/events.interface"; +import { ILogic } from "../interfaces/logic.interface"; +import { EventModel } from "../models/event.model"; +import { ObjectId } from "mongodb"; +import { IAvailableSlot } from "./setAvailableSlots.logic"; + +export class GetAvailableSlotsLogic { + blocks: ITimeBlock[]; + availableSlots: IAvailableSlot[] = []; + constructor( + protected start: Date, + protected end: Date, + protected duration: number, + protected userId: string, + protected findInsertionPoint: ILogic + ) {} + + async execute() { + try { + const availableSlots: {startTime: Date, endTime: Date}[] = []; + const durationMs = this.duration * 60 * 1000; + await this.getBlocks(); + + /** get blocks for this user */ + if(this.availableSlots?.length) { + return this.availableSlots; + } + // If there are no events, the entire range is available + if (this.blocks.length === 0) { + let current = new Date(this.start); + while (current.getTime() + durationMs <= new Date(this.end).getTime()) { + availableSlots.push({ + startTime: new Date(current), + endTime: new Date(current.getTime() + durationMs) + }); + current = new Date(current.getTime() + durationMs); + } + return availableSlots; + } + // Find first relevant block + let currentTime = new Date(this.start).getTime(); + let blockIndex = await this.findInsertionPoint.execute(this.blocks); + // Check each gap between blocks + while (currentTime + durationMs <= new Date(this.end).getTime()) { + const nextBlockStart = blockIndex < this.blocks.length ? + this.blocks[blockIndex].startTime.getTime() : + new Date(this.end).getTime(); + + // If there's enough time before the next block, add slots + if (nextBlockStart - currentTime >= durationMs) { + availableSlots.push( + { + startTime: new Date(currentTime), + endTime: new Date(currentTime + durationMs) + }); + currentTime += durationMs; + } else { + // Skip to end of current block + currentTime = this.blocks[blockIndex].endTime.getTime(); + blockIndex++; + } + } + return availableSlots; + } catch(e) { + console.log(`Error in GetAvailableSlots.execute: ${e}`); + throw e; + } + } + + async getBlocks() { + try { + /** get blocks for this user */ + const eventsDocForUser = await EventModel.findEvent(new ObjectId(this.userId)); + if (!eventsDocForUser) { + throw { status: 400, message: "User not found" }; + } else { + this.blocks = eventsDocForUser.blocks; + this.availableSlots = eventsDocForUser.availableSlots; + } + } catch(e) { + console.log(`Error in GetAvailableSlots.getBlocks: ${e}`); + throw e; + } + } +} \ No newline at end of file diff --git a/src/logics/createUser.logic.ts b/src/logics/createUser.logic.ts new file mode 100644 index 00000000..c9c5fba5 --- /dev/null +++ b/src/logics/createUser.logic.ts @@ -0,0 +1,39 @@ +import { EventModel } from "../models/event.model"; +import { UserModel } from "../models/user.model" + +export class CreateUserLogic { + + constructor( + protected name: string, + protected email: string + ) {} + + async execute() { + try { + await this.validate(); + const userDetails = { + name: this.name, + email: this.email + } + /** Create user in db */ + const user = await UserModel.createUser(userDetails); + /** Create entry in events */ + if(user?._id) { + await EventModel.addBlock(user._id, null); + } else { + throw {status: 500, message: "Error creating user"}; + } + + } catch(e) { + console.log(`Error in CreateUserLogic.execute: ${e}`); + throw e; + } + } + + async validate() { + const existingUser = await UserModel.getUserByEmail(this.email); + if(existingUser) { + throw {status: 400, message: "User with this email already exists"}; + } + } +} \ No newline at end of file diff --git a/src/logics/findConflicts.logic.ts b/src/logics/findConflicts.logic.ts new file mode 100644 index 00000000..a30f7b06 --- /dev/null +++ b/src/logics/findConflicts.logic.ts @@ -0,0 +1,71 @@ +import { ObjectId } from "mongodb"; +import { EventType } from "../enums/eventType.enum"; +import { ITimeBlock } from "../interfaces/events.interface"; +import { EventModel } from "../models/event.model"; + +export class FindConflictsLogic { + userBlocksMapping: Map; + + constructor( + private firstUser: string, + private secondUser: string + ) { + this.userBlocksMapping = new Map(); + this.userBlocksMapping.set(firstUser, []); + this.userBlocksMapping.set(secondUser, []); + } + + async execute() { + await this.getBlocks(); + const conflicts: any[] = []; + const overlappingEvents: any = []; + /** check for conflicts */ + const firstUserBlocks = this.userBlocksMapping.get(this.firstUser); + const secondUserBlocks = this.userBlocksMapping.get(this.secondUser); + if (firstUserBlocks && secondUserBlocks) { + for(let i=0; i user2Event.startTime + ) { + // Calculate the actual conflict time + const conflictStart = new Date( + Math.max(user1Event.startTime.getTime(), user2Event.startTime.getTime()) + ); + const conflictEnd = new Date( + Math.min(user1Event.endTime.getTime(), user2Event.endTime.getTime()) + ); + + conflicts.push({ + startTime: conflictStart, + endTime: conflictEnd, + eventType: EventType.CONFLICT, + eventId: `conflict-${user1Event.eventId}-${user2Event.eventId}`, + }); + + overlappingEvents.push({ + firstEvent: user1Event, + secondEvent: user2Event, + conflict: { + startTime: conflictStart, + endTime: conflictEnd, + } + }); + + } + } + } + } + return {conflicts, overlappingEvents}; + } + + async getBlocks() { + const userEvents = await EventModel.findEventsForMultipleUsers([new ObjectId(this.firstUser), new ObjectId(this.secondUser)]); + userEvents.forEach(event => { + this.userBlocksMapping.set(event.userId.toString(), event.blocks ?? []); + }); + } +} \ No newline at end of file diff --git a/src/logics/findInsertionPoint.logic.ts b/src/logics/findInsertionPoint.logic.ts new file mode 100644 index 00000000..68c0693a --- /dev/null +++ b/src/logics/findInsertionPoint.logic.ts @@ -0,0 +1,29 @@ +import { ITimeBlock } from "../interfaces/events.interface"; +import { ILogic } from "../interfaces/logic.interface"; + +export class FindInsertionPointLogic implements ILogic { + + constructor( + protected time: Date + ) {} + + execute(blocks: any[]): number { + try { + let low = 0; + let high = blocks.length; + + while (low < high) { + const mid = Math.floor((low + high) / 2); + if (blocks[mid].startTime < this.time) { + low = mid + 1; + } else { + high = mid; + } + } + return low; + } catch(e) { + console.log(`Error in FindInsertionPointLogic.execute: ${e}`); + throw e; + } + } +} diff --git a/src/logics/getAllUsers.logic.ts b/src/logics/getAllUsers.logic.ts new file mode 100644 index 00000000..875f595b --- /dev/null +++ b/src/logics/getAllUsers.logic.ts @@ -0,0 +1,15 @@ +import { UserModel } from "../models/user.model"; + +export class GetAllUsersLogic { + + constructor(protected search: string) {} + + async execute() { + try { + const users = await UserModel.get(this.search); + return users?.length ? users : []; + } catch(e) { + console.log(`Error in GetAllUsersLogic.execute: ${e}`); + } + } +} \ No newline at end of file diff --git a/src/logics/getEvents.logic.ts b/src/logics/getEvents.logic.ts new file mode 100644 index 00000000..dbbf104b --- /dev/null +++ b/src/logics/getEvents.logic.ts @@ -0,0 +1,33 @@ +import { ObjectId } from "mongodb"; +import { ITimeBlock } from "../interfaces/events.interface"; +import { EventModel } from "../models/event.model"; + +export class GetEventsLogic { + blocks: ITimeBlock[]; + constructor( + protected startDate: Date, + protected endDate: Date, + protected userId: string, + protected findInsertionPointLogic: any + ) {} + + async execute(): Promise { + await this.getBlocks(); + const startIdx = this.findInsertionPointLogic.execute(this.blocks); + const results: ITimeBlock[] = []; + for (let i = startIdx; i < this.blocks.length; i++) { + const block = this.blocks[i]; + if (block.startTime >= this.endDate) break; + if (block.endTime > this.startDate) { + results.push(block); + } + } + + return results; + } + + async getBlocks() { + const event = await EventModel.findEvent(new ObjectId(this.userId)); + this.blocks = event?.blocks || []; + } +} \ No newline at end of file diff --git a/src/logics/removeEvent.logic.ts b/src/logics/removeEvent.logic.ts new file mode 100644 index 00000000..f185c800 --- /dev/null +++ b/src/logics/removeEvent.logic.ts @@ -0,0 +1,19 @@ +import { ObjectId } from "mongodb"; +import { ITimeBlock } from "../interfaces/events.interface"; +import { EventModel } from "../models/event.model"; + +export class RemoveEventLogic { + blocks: ITimeBlock[]; + constructor( + protected eventId: string, + ) {} + + async execute() { + try { + await EventModel.removeEvent(this.eventId); + } catch(e) { + console.log(`Error in RemoveEventLogic.execute: ${e}`); + throw e; + } + } +} \ No newline at end of file diff --git a/src/logics/setAvailableSlots.logic.ts b/src/logics/setAvailableSlots.logic.ts new file mode 100644 index 00000000..9469acab --- /dev/null +++ b/src/logics/setAvailableSlots.logic.ts @@ -0,0 +1,71 @@ +import { ObjectId } from 'mongodb'; +import { EventModel } from '../models/event.model'; +import { ITimeBlock } from '../interfaces/events.interface'; + +export interface IAvailableSlot { + startTime: Date; + endTime: Date; +} + +export class SetAvailableSlots { + blocks: ITimeBlock[]; + constructor( + protected availableSlots: IAvailableSlot[], + protected userId: ObjectId, + protected email: string + ) {} + + async execute() { + try { + this.processSlots(); + await this.getBlocks(); + /** check if any available slot is conflicting with blocked slots */ + const failedToSetAvailableSlots = []; + const processedAvailableSlots = []; + for(let i=0; i block.startTime + ) { + conflictFlag = true; + failedToSetAvailableSlots.push(slot); + break; + } + } + if (!conflictFlag) { + processedAvailableSlots.push(slot); + } + } + await EventModel.setAvailableSlots(this.userId, processedAvailableSlots); + return { + failedToSetAvailableSlots, + processedAvailableSlots + } + } catch(e) { + console.log(`Error in SetAvailableSlots.execute: ${e}`); + throw e; + } + } + + processSlots() { + for(const slot of this.availableSlots) { + slot.startTime = new Date(slot.startTime); + slot.endTime = new Date(slot.endTime); + } + } + + async getBlocks() { + try { + const eventsDocForUser = await EventModel.findEvent(new ObjectId(this.userId)); + if(eventsDocForUser.userId?.email !== this.email) {throw {status: 403, message: "Forbidden to set slots for this user"}}; + this.blocks = eventsDocForUser?.blocks || []; + } catch(e) { + console.log(`Error in SetAvailableSlots.getBlocks: ${e}`); + throw e; + } + } +} \ No newline at end of file diff --git a/src/models/event.model.ts b/src/models/event.model.ts new file mode 100644 index 00000000..8bdee690 --- /dev/null +++ b/src/models/event.model.ts @@ -0,0 +1,5 @@ +import { model } from "mongoose"; +import { IEvent, IEventModel } from "../interfaces/events.interface"; +import { eventSchema } from "../schemas/event.schema"; + +export const EventModel: IEventModel = model("event", eventSchema); \ No newline at end of file diff --git a/src/models/user.model.ts b/src/models/user.model.ts new file mode 100644 index 00000000..e0042a62 --- /dev/null +++ b/src/models/user.model.ts @@ -0,0 +1,5 @@ +import { model } from "mongoose"; +import { IUserModel } from "../interfaces/user.interface"; +import { userSchema } from "../schemas/user.schema"; + +export const UserModel: IUserModel = model("User", userSchema); \ No newline at end of file diff --git a/src/schemas/event.schema.ts b/src/schemas/event.schema.ts new file mode 100644 index 00000000..a1b0571f --- /dev/null +++ b/src/schemas/event.schema.ts @@ -0,0 +1,137 @@ +import { Schema, Types } from "mongoose"; +import { IEvent, ITimeBlock } from "../interfaces/events.interface"; +import { ObjectId } from "mongodb"; +import { IAvailableSlot } from "../logics/setAvailableSlots.logic"; + +export const eventSchema = new Schema({ + userId: { + type: Types.ObjectId, + ref: "User", + required: true, + }, + timezone: { + type: String, + required: true, + default: "UTC", + }, + availableSlots: [ + { + startTime: { + type: Date, + required: true, + }, + endTime: { + type: Date, + required: true, + } + } + ], + blocks: [{ + startTime: { + type: Date, + required: true, + }, + endTime: { + type: Date, + required: true, + }, + eventType: { + type: String, + required: true, + }, + eventId: { + type: String, + required: true, + }, + title: { + type: String, + }, + description: { + type: String, + }, + senderEmail: { + type: String, + required: true, + }, + memberEmail: { + type: String, + }, + isConflicted: { + type: Boolean, + required: true, + default: false, + }, + isAccepted: { + type: Boolean, + required: true, + default: false, + } + }] +}, {timestamps: true +}) + +eventSchema.statics.create = async function(userId: ObjectId) { + return this.create({userId, blocks: []}); +} + +eventSchema.statics.findEvent = async function(userId: string) { + return this.findOne({userId}).populate("userId").lean(); +} + +eventSchema.statics.findEventsForMultipleUsers = async function(userIds: string[]) { + return this.find({userId: {$in: userIds}}); +} + +eventSchema.statics.addBlock = async function(userId: ObjectId, newBlock: ITimeBlock) { + let setQuery: any = { + $push: { + blocks: newBlock + } + } + if(!newBlock) { + /** set empty array */ + setQuery = { + $set: { + blocks: [] + } + } + } + return this.updateOne( + { + userId + }, setQuery, {upsert: true}); +} + +eventSchema.statics.setAvailableSlots = async function(userId: ObjectId, slots: IAvailableSlot[]) { + return this.updateOne( + { + userId + }, { + $set: { + availableSlots: slots + } + }); +} + +eventSchema.statics.acceptEvent = async function(userId: ObjectId, eventId: string) { + return this.updateOne( + { + userId, + "blocks.eventId": eventId + }, { + $set: { + "blocks.$.isAccepted": true + } + }); +} + +eventSchema.statics.removeEvent = async function(eventId: string) { + return this.updateMany( + { + "blocks.eventId": eventId + }, { + $pull: { + blocks: {eventId} + } + }); +} \ No newline at end of file diff --git a/src/schemas/user.schema.ts b/src/schemas/user.schema.ts new file mode 100644 index 00000000..f2cb8687 --- /dev/null +++ b/src/schemas/user.schema.ts @@ -0,0 +1,41 @@ +import { time } from "console"; +import { Model } from "mongoose"; +import { IUser } from "../interfaces/user.interface"; +import mongoose from "mongoose"; + +// Define the schema for the collection +export const userSchema = new mongoose.Schema({ + name: { + type: String, + required: true, // This field is mandatory + }, + email: { + type: String, + required: true, + unique: true, // Ensures no two users have the same email + } +}, {timestamps: true}); + + +userSchema.statics.createUser = async function(userDetails: IUser) { + return this.create(userDetails); +} + +userSchema.statics.getUserByEmail = async function(email: string) { + return this.findOne({email}).lean(); +} + +userSchema.statics.get = async function(search: string) { + let filter = {}; + + if(search) { + /** regex search */ + filter = { + $or: [ + {name: {$regex: search, $options: "i"}}, + {email: {$regex: search, $options: "i"}} + ] + } + } + return this.find(filter).lean(); +} diff --git a/src/server.ts b/src/server.ts new file mode 100644 index 00000000..aefb9851 --- /dev/null +++ b/src/server.ts @@ -0,0 +1,37 @@ +import express from 'express'; +import { SlotsUtilSController } from './controllers/slotsUtils.controller'; + +const app = express(); +import { DatabaseConnection } from './database/dbConnection'; +import { UserController } from './controllers/user.contoller'; +DatabaseConnection.connect(); +const port = 3000; + +// JSON body parser +app.use(express.json()); + +// URL-encoded body parser +app.use(express.urlencoded({ extended: true })); + +app.post('/user', UserController.create); +app.get('/users', UserController.get); + +app.get('/:userId/get-slots', SlotsUtilSController.getAvailableSlots); + +app.post('/:userId/book-slot', SlotsUtilSController.bookSlot); + +app.get('/:userId/get-events', SlotsUtilSController.getEvents); + +app.post('/cancel-event/:eventId', SlotsUtilSController.cancelEvent); + +app.get('/get-conflicts', SlotsUtilSController.getConflicts); + +app.post('/:userId/set-available-slots', SlotsUtilSController.setAvailableSlots); + +app.patch(`/:userId/accept-event/:eventId`, SlotsUtilSController.acceptEvent); + + + +app.listen(port, () => { + console.log(`Server started at http://localhost:${port}`); +}); \ No newline at end of file diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 00000000..aead65fc --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,7 @@ +{ + "compilerOptions": { + "strict": false, + "esModuleInterop": true, + "skipLibCheck": true, + } + }