Adding in flashcard's and decks

api/src/controllers/flashcard-decks-controller.ts

@@ -0,0 +1,123 @@
+import { isNil } from "lodash"
+
+import logger from "@/utils/logger"
+import { FlashcardDeck } from "@/models"
+import { FlashcardDecksPolicy } from "@/policies"
+import { CreateService, DestroyService, UpdateService } from "@/services/flashcard-decks"
+import { IndexSerializer, ShowSerializer } from "@/serializers/flashcard-decks"
+import BaseController from "@/controllers/base-controller"
+
+export class FlashcardDecksController extends BaseController<FlashcardDeck> {
+  async index() {
+    try {
+      const where = this.buildWhere()
+      const scopes = this.buildFilterScopes()
+      const scopedDecks = FlashcardDecksPolicy.applyScope(scopes, this.currentUser)
+
+      const totalCount = await scopedDecks.count({ where })
+      const flashcardDecks = await scopedDecks.findAll({
+        where,
+        limit: this.pagination.limit,
+        offset: this.pagination.offset,
+        order: this.buildOrder(),
+      })
+      const serializedDecks = IndexSerializer.perform(flashcardDecks)
+      return this.response.json({ flashcardDecks: serializedDecks, totalCount })
+    } catch (error) {
+      logger.error("Error fetching flashcard decks" + error)
+      return this.response.status(400).json({ message: `Error fetching flashcard decks: ${error}` })
+    }
+  }
+
+  async show() {
+    try {
+      const flashcardDeck = await this.loadFlashcardDeck()
+      if (isNil(flashcardDeck)) {
+        return this.response.status(404).json({ message: "Flashcard deck not found" })
+      }
+
+      const policy = this.buildPolicy(flashcardDeck)
+      if (!policy.show()) {
+        return this.response.status(403).json({ message: "You are not authorized to view this flashcard deck" })
+      }
+
+      const serializedDeck = ShowSerializer.perform(flashcardDeck)
+      return this.response.json({ flashcardDeck: serializedDeck, policy })
+    } catch (error) {
+      logger.error("Error fetching flashcard deck" + error)
+      return this.response.status(400).json({ message: `Error fetching flashcard deck: ${error}` })
+    }
+  }
+
+  async create() {
+    try {
+      const policy = this.buildPolicy()
+      if (!policy.create()) {
+        return this.response.status(403).json({ message: "You are not authorized to create flashcard decks" })
+      }
+
+      const permittedAttributes = policy.permitAttributesForCreate(this.request.body)
+      const flashcardDeck = await CreateService.perform({
+        ...permittedAttributes,
+        creatorId: this.currentUser.id,
+      })
+      const serializedDeck = ShowSerializer.perform(flashcardDeck)
+      return this.response.status(201).json({ flashcardDeck: serializedDeck })
+    } catch (error) {
+      logger.error("Error creating flashcard deck" + error)
+      return this.response.status(422).json({ message: `Error creating flashcard deck: ${error}` })
+    }
+  }
+
+  async update() {
+    try {
+      const flashcardDeck = await this.loadFlashcardDeck()
+      if (isNil(flashcardDeck)) {
+        return this.response.status(404).json({ message: "Flashcard deck not found" })
+      }
+
+      const policy = this.buildPolicy(flashcardDeck)
+      if (!policy.update()) {
+        return this.response.status(403).json({ message: "You are not authorized to update this flashcard deck" })
+      }
+
+      const permittedAttributes = policy.permitAttributes(this.request.body)
+      const updatedDeck = await UpdateService.perform(flashcardDeck, permittedAttributes)
+      const serializedDeck = ShowSerializer.perform(updatedDeck)
+      return this.response.json({ flashcardDeck: serializedDeck })
+    } catch (error) {
+      logger.error("Error updating flashcard deck" + error)
+      return this.response.status(422).json({ message: `Error updating flashcard deck: ${error}` })
+    }
+  }
+
+  async destroy() {
+    try {
+      const flashcardDeck = await this.loadFlashcardDeck()
+      if (isNil(flashcardDeck)) {
+        return this.response.status(404).json({ message: "Flashcard deck not found" })
+      }
+
+      const policy = this.buildPolicy(flashcardDeck)
+      if (!policy.destroy()) {
+        return this.response.status(403).json({ message: "You are not authorized to delete this flashcard deck" })
+      }
+
+      await DestroyService.perform(flashcardDeck)
+      return this.response.status(204).send()
+    } catch (error) {
+      logger.error("Error deleting flashcard deck" + error)
+      return this.response.status(422).json({ message: `Error deleting flashcard deck: ${error}` })
+    }
+  }
+
+  private async loadFlashcardDeck() {
+    return FlashcardDeck.findByPk(this.params.flashcardDeckId)
+  }
+
+  private buildPolicy(flashcardDeck: FlashcardDeck = FlashcardDeck.build()) {
+    return new FlashcardDecksPolicy(this.currentUser, flashcardDeck)
+  }
+}
+
+export default FlashcardDecksController

api/src/controllers/flashcards-controller.ts

@@ -0,0 +1,123 @@
+import { isNil } from "lodash"
+
+import logger from "@/utils/logger"
+import { Flashcard } from "@/models"
+import { FlashcardsPolicy } from "@/policies"
+import { CreateService, DestroyService, UpdateService } from "@/services/flashcards"
+import { IndexSerializer, ShowSerializer } from "@/serializers/flashcards"
+import BaseController from "@/controllers/base-controller"
+
+export class FlashcardsController extends BaseController<Flashcard> {
+  async index() {
+    try {
+      const where = this.buildWhere()
+      const scopes = this.buildFilterScopes()
+      const scopedFlashcards = FlashcardsPolicy.applyScope(scopes, this.currentUser)
+
+      const totalCount = await scopedFlashcards.count({ where })
+      const flashcards = await scopedFlashcards.findAll({
+        where,
+        limit: this.pagination.limit,
+        offset: this.pagination.offset,
+        order: this.buildOrder(),
+      })
+      const serializedFlashcards = IndexSerializer.perform(flashcards)
+      return this.response.json({ flashcards: serializedFlashcards, totalCount })
+    } catch (error) {
+      logger.error("Error fetching flashcards" + error)
+      return this.response.status(400).json({ message: `Error fetching flashcards: ${error}` })
+    }
+  }
+
+  async show() {
+    try {
+      const flashcard = await this.loadFlashcard()
+      if (isNil(flashcard)) {
+        return this.response.status(404).json({ message: "Flashcard not found" })
+      }
+
+      const policy = this.buildPolicy(flashcard)
+      if (!policy.show()) {
+        return this.response.status(403).json({ message: "You are not authorized to view this flashcard" })
+      }
+
+      const serializedFlashcard = ShowSerializer.perform(flashcard)
+      return this.response.json({ flashcard: serializedFlashcard, policy })
+    } catch (error) {
+      logger.error("Error fetching flashcard" + error)
+      return this.response.status(400).json({ message: `Error fetching flashcard: ${error}` })
+    }
+  }
+
+  async create() {
+    try {
+      const policy = this.buildPolicy()
+      if (!policy.create()) {
+        return this.response.status(403).json({ message: "You are not authorized to create flashcards" })
+      }
+
+      const permittedAttributes = policy.permitAttributesForCreate(this.request.body)
+      const flashcard = await CreateService.perform({
+        ...permittedAttributes,
+        creatorId: this.currentUser.id,
+      })
+      const serializedFlashcard = ShowSerializer.perform(flashcard)
+      return this.response.status(201).json({ flashcard: serializedFlashcard })
+    } catch (error) {
+      logger.error("Error creating flashcard" + error)
+      return this.response.status(422).json({ message: `Error creating flashcard: ${error}` })
+    }
+  }
+
+  async update() {
+    try {
+      const flashcard = await this.loadFlashcard()
+      if (isNil(flashcard)) {
+        return this.response.status(404).json({ message: "Flashcard not found" })
+      }
+
+      const policy = this.buildPolicy(flashcard)
+      if (!policy.update()) {
+        return this.response.status(403).json({ message: "You are not authorized to update this flashcard" })
+      }
+
+      const permittedAttributes = policy.permitAttributes(this.request.body)
+      const updatedFlashcard = await UpdateService.perform(flashcard, permittedAttributes)
+      const serializedFlashcard = ShowSerializer.perform(updatedFlashcard)
+      return this.response.json({ flashcard: serializedFlashcard })
+    } catch (error) {
+      logger.error("Error updating flashcard" + error)
+      return this.response.status(422).json({ message: `Error updating flashcard: ${error}` })
+    }
+  }
+
+  async destroy() {
+    try {
+      const flashcard = await this.loadFlashcard()
+      if (isNil(flashcard)) {
+        return this.response.status(404).json({ message: "Flashcard not found" })
+      }
+
+      const policy = this.buildPolicy(flashcard)
+      if (!policy.destroy()) {
+        return this.response.status(403).json({ message: "You are not authorized to delete this flashcard" })
+      }
+
+      await DestroyService.perform(flashcard)
+      return this.response.status(204).send()
+    } catch (error) {
+      logger.error("Error deleting flashcard" + error)
+      return this.response.status(422).json({ message: `Error deleting flashcard: ${error}` })
+    }
+  }
+
+  private async loadFlashcard() {
+    return Flashcard.findByPk(this.params.flashcardId)
+  }
+
+  private buildPolicy(flashcard: Flashcard = Flashcard.build()) {
+    return new FlashcardsPolicy(this.currentUser, flashcard)
+  }
+}
+
+export default FlashcardsController

api/src/controllers/index.ts

@@ -1,3 +1,5 @@
 // Controllers
 export { CurrentUserController } from "./current-user-controller"
+export { FlashcardDecksController } from "./flashcard-decks-controller"
+export { FlashcardsController } from "./flashcards-controller"
 export { UsersController } from "./users-controller"

api/src/db/migrations/20260625090034_create-flashcard-decks-table.ts

@@ -0,0 +1,27 @@
+import type { Knex } from "knex"
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.schema.createTable("flashcard_decks", function (table) {
+    table.increments("id").notNullable().primary()
+    table.integer("parent_deck_id").nullable()
+    table.integer("creator_id").notNullable()
+    table.string("name", 255).notNullable()
+
+    table
+      .specificType("created_at", "TIMESTAMP WITH TIME ZONE")
+      .notNullable()
+      .defaultTo(knex.raw("CURRENT_TIMESTAMP(0)"))
+    table
+      .specificType("updated_at", "TIMESTAMP WITH TIME ZONE")
+      .notNullable()
+      .defaultTo(knex.raw("CURRENT_TIMESTAMP(0)"))
+    table.specificType("deleted_at", "TIMESTAMP WITH TIME ZONE")
+
+    table.foreign("parent_deck_id").references("flashcard_decks.id")
+    table.foreign("creator_id").references("users.id")
+  })
+}
+
+export async function down(knex: Knex): Promise<void> {
+  await knex.schema.dropTable("flashcard_decks")
+}

api/src/db/migrations/20260625090042_create-flashcards-table.ts

@@ -0,0 +1,29 @@
+import type { Knex } from "knex"
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.schema.createTable("flashcards", function (table) {
+    table.increments("id").notNullable().primary()
+    table.integer("flashcard_deck_id").notNullable()
+    table.integer("creator_id").notNullable()
+    table.string("card_type", 255).notNullable()
+    table.text("front").notNullable()
+    table.text("back").nullable()
+
+    table
+      .specificType("created_at", "TIMESTAMP WITH TIME ZONE")
+      .notNullable()
+      .defaultTo(knex.raw("CURRENT_TIMESTAMP(0)"))
+    table
+      .specificType("updated_at", "TIMESTAMP WITH TIME ZONE")
+      .notNullable()
+      .defaultTo(knex.raw("CURRENT_TIMESTAMP(0)"))
+    table.specificType("deleted_at", "TIMESTAMP WITH TIME ZONE")
+
+    table.foreign("flashcard_deck_id").references("flashcard_decks.id")
+    table.foreign("creator_id").references("users.id")
+  })
+}
+
+export async function down(knex: Knex): Promise<void> {
+  await knex.schema.dropTable("flashcards")
+}

api/src/models/flashcard-deck.ts

@@ -0,0 +1,68 @@
+import {
+  type CreationOptional,
+  DataTypes,
+  InferAttributes,
+  InferCreationAttributes,
+  type NonAttribute,
+  sql,
+} from "@sequelize/core"
+import {
+  Attribute,
+  AutoIncrement,
+  BelongsTo,
+  Default,
+  NotNull,
+  PrimaryKey,
+} from "@sequelize/core/decorators-legacy"
+
+import BaseModel from "@/models/base-model"
+
+export class FlashcardDeck extends BaseModel<
+  InferAttributes<FlashcardDeck>,
+  InferCreationAttributes<FlashcardDeck>
+> {
+  @Attribute(DataTypes.INTEGER)
+  @PrimaryKey
+  @AutoIncrement
+  declare id: CreationOptional<number>
+
+  @Attribute(DataTypes.INTEGER)
+  declare parentDeckId: number | null
+
+  @Attribute(DataTypes.INTEGER)
+  @NotNull
+  declare creatorId: number
+
+  @Attribute(DataTypes.STRING(255))
+  @NotNull
+  declare name: string
+
+  @Attribute(DataTypes.DATE(0))
+  @NotNull
+  @Default(sql.literal("CURRENT_TIMESTAMP"))
+  declare createdAt: CreationOptional<Date>
+
+  @Attribute(DataTypes.DATE(0))
+  @NotNull
+  @Default(sql.literal("CURRENT_TIMESTAMP"))
+  declare updatedAt: CreationOptional<Date>
+
+  @Attribute(DataTypes.DATE(0))
+  declare deletedAt: Date | null
+
+  // Associations
+  @BelongsTo(() => FlashcardDeck, {
+    foreignKey: {
+      name: "parentDeckId",
+      allowNull: true,
+    },
+  })
+  declare parentDeck?: NonAttribute<FlashcardDeck>
+
+  // Scopes
+  static establishScopes(): void {
+    this.addSearchScope(["name"])
+  }
+}
+
+export default FlashcardDeck

api/src/models/flashcard.ts

@@ -0,0 +1,81 @@
+import {
+  type CreationOptional,
+  DataTypes,
+  InferAttributes,
+  InferCreationAttributes,
+  type NonAttribute,
+  sql,
+} from "@sequelize/core"
+import {
+  Attribute,
+  AutoIncrement,
+  BelongsTo,
+  Default,
+  NotNull,
+  PrimaryKey,
+} from "@sequelize/core/decorators-legacy"
+
+import BaseModel from "@/models/base-model"
+import FlashcardDeck from "@/models/flashcard-deck"
+
+export class Flashcard extends BaseModel<
+  InferAttributes<Flashcard>,
+  InferCreationAttributes<Flashcard>
+> {
+  @Attribute(DataTypes.INTEGER)
+  @PrimaryKey
+  @AutoIncrement
+  declare id: CreationOptional<number>
+
+  @Attribute(DataTypes.INTEGER)
+  @NotNull
+  declare flashcardDeckId: number
+
+  @Attribute(DataTypes.INTEGER)
+  @NotNull
+  declare creatorId: number
+
+  @Attribute(DataTypes.STRING(255))
+  @NotNull
+  declare cardType: string
+
+  @Attribute(DataTypes.TEXT)
+  @NotNull
+  declare front: string
+
+  @Attribute(DataTypes.TEXT)
+  declare back: string | null
+
+  @Attribute(DataTypes.DATE(0))
+  @NotNull
+  @Default(sql.literal("CURRENT_TIMESTAMP"))
+  declare createdAt: CreationOptional<Date>
+
+  @Attribute(DataTypes.DATE(0))
+  @NotNull
+  @Default(sql.literal("CURRENT_TIMESTAMP"))
+  declare updatedAt: CreationOptional<Date>
+
+  @Attribute(DataTypes.DATE(0))
+  declare deletedAt: Date | null
+
+  // Associations
+  @BelongsTo(() => FlashcardDeck, {
+    foreignKey: {
+      name: "flashcardDeckId",
+      allowNull: false,
+    },
+    inverse: {
+      as: "flashcards",
+      type: "hasMany",
+    },
+  })
+  declare flashcardDeck?: NonAttribute<FlashcardDeck>
+
+  // Scopes
+  static establishScopes(): void {
+    this.addSearchScope(["front", "back"])
+  }
+}
+
+export default Flashcard

api/src/models/index.ts

@@ -1,16 +1,24 @@
 import db from "@/db/db-client"
 
 // Models
+import Flashcard from "@/models/flashcard"
+import FlashcardDeck from "@/models/flashcard-deck"
 import User, { UserRoles } from "@/models/user"
 
 db.addModels([
+  Flashcard,
+  FlashcardDeck,
   User,
 ])
 
 // Lazy load scopes
+Flashcard.establishScopes()
+FlashcardDeck.establishScopes()
 User.establishScopes()
 
 export {
+  Flashcard,
+  FlashcardDeck,
   User,
   UserRoles,
 }

api/src/policies/flashcard-decks-policy.ts

@@ -0,0 +1,41 @@
+import { Attributes, FindOptions } from "@sequelize/core"
+
+import { FlashcardDeck, User } from "@/models"
+import { ALL_RECORDS_SCOPE, PolicyFactory } from "@/policies/base-policy"
+import { Path } from "@/utils/deep-pick"
+
+export class FlashcardDecksPolicy extends PolicyFactory(FlashcardDeck) {
+  show(): boolean {
+    return true
+  }
+
+  create(): boolean {
+    return true
+  }
+
+  update(): boolean {
+    return this.user.id === this.record.creatorId
+  }
+
+  destroy(): boolean {
+    return this.user.id === this.record.creatorId
+  }
+
+  permittedAttributes(): Path[] {
+    return ["name", "parentDeckId"] as (keyof Attributes<FlashcardDeck>)[]
+  }
+
+  permittedAttributesForCreate(): Path[] {
+    return [...this.permittedAttributes()]
+  }
+
+  permittedAttributesForUpdate(): Path[] {
+    return [...this.permittedAttributes()]
+  }
+
+  static policyScope(_user: User): FindOptions<Attributes<FlashcardDeck>> {
+    return ALL_RECORDS_SCOPE
+  }
+}
+
+export default FlashcardDecksPolicy

api/src/policies/flashcards-policy.ts

@@ -0,0 +1,41 @@
+import { Attributes, FindOptions } from "@sequelize/core"
+
+import { Flashcard, User } from "@/models"
+import { ALL_RECORDS_SCOPE, PolicyFactory } from "@/policies/base-policy"
+import { Path } from "@/utils/deep-pick"
+
+export class FlashcardsPolicy extends PolicyFactory(Flashcard) {
+  show(): boolean {
+    return true
+  }
+
+  create(): boolean {
+    return true
+  }
+
+  update(): boolean {
+    return this.user.id === this.record.creatorId
+  }
+
+  destroy(): boolean {
+    return this.user.id === this.record.creatorId
+  }
+
+  permittedAttributes(): Path[] {
+    return ["flashcardDeckId", "cardType", "front", "back"] as (keyof Attributes<Flashcard>)[]
+  }
+
+  permittedAttributesForCreate(): Path[] {
+    return [...this.permittedAttributes()]
+  }
+
+  permittedAttributesForUpdate(): Path[] {
+    return [...this.permittedAttributes()]
+  }
+
+  static policyScope(_user: User): FindOptions<Attributes<Flashcard>> {
+    return ALL_RECORDS_SCOPE
+  }
+}
+
+export default FlashcardsPolicy

api/src/policies/index.ts

@@ -1,3 +1,5 @@
 // Policy Bundles
 export { type BaseScopeOptions } from "./base-policy"
+export { FlashcardDecksPolicy } from "./flashcard-decks-policy"
+export { FlashcardsPolicy } from "./flashcards-policy"
 export { UsersPolicy } from "./users-policy"

api/src/router.ts

@@ -16,7 +16,7 @@ import { logger } from "@/utils/logger"
 
 import { jwtMiddleware, authorizationMiddleware } from "@/middlewares"
 
-import { CurrentUserController, UsersController } from "@/controllers"
+import { CurrentUserController, FlashcardDecksController, FlashcardsController, UsersController } from "@/controllers"
 
 export const router = Router()
 
@@ -42,6 +42,26 @@ router
   .patch(UsersController.update)
   .delete(UsersController.destroy)
 
+router
+  .route("/api/flashcard-decks")
+  .get(FlashcardDecksController.index)
+  .post(FlashcardDecksController.create)
+router
+  .route("/api/flashcard-decks/:flashcardDeckId")
+  .get(FlashcardDecksController.show)
+  .patch(FlashcardDecksController.update)
+  .delete(FlashcardDecksController.destroy)
+
+router
+  .route("/api/flashcards")
+  .get(FlashcardsController.index)
+  .post(FlashcardsController.create)
+router
+  .route("/api/flashcards/:flashcardId")
+  .get(FlashcardsController.show)
+  .patch(FlashcardsController.update)
+  .delete(FlashcardsController.destroy)
+
 // if no other routes match, return a 404
 router.use("/api", (req: Request, res: Response) => {
   return res.status(404).json({ message: "Not Found", url: req.path })

api/src/serializers/flashcard-decks/index-serializer.ts

@@ -0,0 +1,17 @@
+import { pick } from "lodash"
+
+import { FlashcardDeck } from "@/models"
+import BaseSerializer from "@/serializers/base-serializer"
+
+export type FlashcardDeckIndexView = Pick<
+  FlashcardDeck,
+  "id" | "parentDeckId" | "creatorId" | "name" | "createdAt" | "updatedAt"
+>
+
+export class IndexSerializer extends BaseSerializer<FlashcardDeck> {
+  perform(): FlashcardDeckIndexView {
+    return pick(this.record, ["id", "parentDeckId", "creatorId", "name", "createdAt", "updatedAt"])
+  }
+}
+
+export default IndexSerializer

api/src/serializers/flashcard-decks/index.ts

@@ -0,0 +1,2 @@
+export { IndexSerializer } from "./index-serializer"
+export { ShowSerializer } from "./show-serializer"

api/src/serializers/flashcard-decks/show-serializer.ts

@@ -0,0 +1,17 @@
+import { pick } from "lodash"
+
+import { FlashcardDeck } from "@/models"
+import BaseSerializer from "@/serializers/base-serializer"
+
+export type FlashcardDeckShowView = Pick<
+  FlashcardDeck,
+  "id" | "parentDeckId" | "creatorId" | "name" | "createdAt" | "updatedAt"
+>
+
+export class ShowSerializer extends BaseSerializer<FlashcardDeck> {
+  perform(): FlashcardDeckShowView {
+    return pick(this.record, ["id", "parentDeckId", "creatorId", "name", "createdAt", "updatedAt"])
+  }
+}
+
+export default ShowSerializer

api/src/serializers/flashcards/index-serializer.ts

@@ -0,0 +1,26 @@
+import { pick } from "lodash"
+
+import { Flashcard } from "@/models"
+import BaseSerializer from "@/serializers/base-serializer"
+
+export type FlashcardIndexView = Pick<
+  Flashcard,
+  "id" | "flashcardDeckId" | "creatorId" | "cardType" | "front" | "back" | "createdAt" | "updatedAt"
+>
+
+export class IndexSerializer extends BaseSerializer<Flashcard> {
+  perform(): FlashcardIndexView {
+    return pick(this.record, [
+      "id",
+      "flashcardDeckId",
+      "creatorId",
+      "cardType",
+      "front",
+      "back",
+      "createdAt",
+      "updatedAt",
+    ])
+  }
+}
+
+export default IndexSerializer

api/src/serializers/flashcards/index.ts

@@ -0,0 +1,2 @@
+export { IndexSerializer } from "./index-serializer"
+export { ShowSerializer } from "./show-serializer"

api/src/serializers/flashcards/show-serializer.ts

@@ -0,0 +1,26 @@
+import { pick } from "lodash"
+
+import { Flashcard } from "@/models"
+import BaseSerializer from "@/serializers/base-serializer"
+
+export type FlashcardShowView = Pick<
+  Flashcard,
+  "id" | "flashcardDeckId" | "creatorId" | "cardType" | "front" | "back" | "createdAt" | "updatedAt"
+>
+
+export class ShowSerializer extends BaseSerializer<Flashcard> {
+  perform(): FlashcardShowView {
+    return pick(this.record, [
+      "id",
+      "flashcardDeckId",
+      "creatorId",
+      "cardType",
+      "front",
+      "back",
+      "createdAt",
+      "updatedAt",
+    ])
+  }
+}
+
+export default ShowSerializer

api/src/serializers/index.ts

@@ -1,2 +1,4 @@
 // Bundled exports
+export * as FlashcardDecks from "./flashcard-decks"
+export * as Flashcards from "./flashcards"
 export * as Users from "./users"

api/src/services/flashcard-decks/create-service.ts

@@ -0,0 +1,33 @@
+import { CreationAttributes } from "@sequelize/core"
+import { isNil } from "lodash"
+
+import { FlashcardDeck } from "@/models"
+import BaseService from "@/services/base-service"
+
+export type FlashcardDeckCreationAttributes = Partial<CreationAttributes<FlashcardDeck>>
+
+export class CreateService extends BaseService {
+  constructor(private attributes: FlashcardDeckCreationAttributes) {
+    super()
+  }
+
+  async perform(): Promise<FlashcardDeck> {
+    const { creatorId, name, ...optionalAttributes } = this.attributes
+
+    if (isNil(creatorId)) {
+      throw new Error("Creator is required")
+    }
+
+    if (isNil(name)) {
+      throw new Error("Name is required")
+    }
+
+    return FlashcardDeck.create({
+      ...optionalAttributes,
+      creatorId,
+      name,
+    })
+  }
+}
+
+export default CreateService

api/src/services/flashcard-decks/destroy-service.ts

@@ -0,0 +1,14 @@
+import { FlashcardDeck } from "@/models"
+import BaseService from "@/services/base-service"
+
+export class DestroyService extends BaseService {
+  constructor(private flashcardDeck: FlashcardDeck) {
+    super()
+  }
+
+  async perform(): Promise<void> {
+    return this.flashcardDeck.destroy()
+  }
+}
+
+export default DestroyService

api/src/services/flashcard-decks/index.ts

@@ -0,0 +1,3 @@
+export { CreateService } from "./create-service"
+export { UpdateService } from "./update-service"
+export { DestroyService } from "./destroy-service"

api/src/services/flashcard-decks/update-service.ts

@@ -0,0 +1,21 @@
+import { Attributes } from "@sequelize/core"
+
+import { FlashcardDeck } from "@/models"
+import BaseService from "@/services/base-service"
+
+export type FlashcardDeckUpdateAttributes = Partial<Attributes<FlashcardDeck>>
+
+export class UpdateService extends BaseService {
+  constructor(
+    private flashcardDeck: FlashcardDeck,
+    private attributes: FlashcardDeckUpdateAttributes
+  ) {
+    super()
+  }
+
+  async perform(): Promise<FlashcardDeck> {
+    return this.flashcardDeck.update(this.attributes)
+  }
+}
+
+export default UpdateService

api/src/services/flashcards/create-service.ts

@@ -0,0 +1,43 @@
+import { CreationAttributes } from "@sequelize/core"
+import { isNil } from "lodash"
+
+import { Flashcard } from "@/models"
+import BaseService from "@/services/base-service"
+
+export type FlashcardCreationAttributes = Partial<CreationAttributes<Flashcard>>
+
+export class CreateService extends BaseService {
+  constructor(private attributes: FlashcardCreationAttributes) {
+    super()
+  }
+
+  async perform(): Promise<Flashcard> {
+    const { flashcardDeckId, creatorId, cardType, front, ...optionalAttributes } = this.attributes
+
+    if (isNil(flashcardDeckId)) {
+      throw new Error("Flashcard deck is required")
+    }
+
+    if (isNil(creatorId)) {
+      throw new Error("Creator is required")
+    }
+
+    if (isNil(cardType)) {
+      throw new Error("Card type is required")
+    }
+
+    if (isNil(front)) {
+      throw new Error("Front is required")
+    }
+
+    return Flashcard.create({
+      ...optionalAttributes,
+      flashcardDeckId,
+      creatorId,
+      cardType,
+      front,
+    })
+  }
+}
+
+export default CreateService

api/src/services/flashcards/destroy-service.ts

@@ -0,0 +1,14 @@
+import { Flashcard } from "@/models"
+import BaseService from "@/services/base-service"
+
+export class DestroyService extends BaseService {
+  constructor(private flashcard: Flashcard) {
+    super()
+  }
+
+  async perform(): Promise<void> {
+    return this.flashcard.destroy()
+  }
+}
+
+export default DestroyService

api/src/services/flashcards/index.ts

@@ -0,0 +1,3 @@
+export { CreateService } from "./create-service"
+export { UpdateService } from "./update-service"
+export { DestroyService } from "./destroy-service"

api/src/services/flashcards/update-service.ts

@@ -0,0 +1,21 @@
+import { Attributes } from "@sequelize/core"
+
+import { Flashcard } from "@/models"
+import BaseService from "@/services/base-service"
+
+export type FlashcardUpdateAttributes = Partial<Attributes<Flashcard>>
+
+export class UpdateService extends BaseService {
+  constructor(
+    private flashcard: Flashcard,
+    private attributes: FlashcardUpdateAttributes
+  ) {
+    super()
+  }
+
+  async perform(): Promise<Flashcard> {
+    return this.flashcard.update(this.attributes)
+  }
+}
+
+export default UpdateService

api/src/services/index.ts

@@ -1 +1,3 @@
+export * as FlashcardDecks from "./flashcard-decks"
+export * as Flashcards from "./flashcards"
 export * as Users from "./users"