feat: assign random color to lesson & deleted some colors in enum type

app/Datatypes/Enums/ColorEnum.ts

@@ -11,15 +11,6 @@ enum ColorEnum {
   Purple = '#800080',
   Indigo = '#4B0082',
   Teal = '#008080',
-  LightGray = '#D3D3D3',
-  LightSlateGray = '#778899',
-  LightGreen = '#90EE90',
-  LightSeaGreen = '#20B2AA',
-  LightCoral = '#FFA07A',
-  LightCyan = '#E0FFFF',
-  LightSteelBlue = '#B0C4DE',
-  LightBlue = '#ADD8E6',
-  LightSkyBlue = '#87CEFA',
   MediumVioletRed = '#C71585',
   MediumOrchid = '#BA55D3',
   MediumPurple = '#9370DB',

app/Models/Lesson.ts

@@ -2,6 +2,7 @@
 import { DateTime } from 'luxon';
 import { nanoid } from 'nanoid';
 import { BaseModel, beforeCreate, BelongsTo, belongsTo, column, HasOne, hasOne } from '@ioc:Adonis/Lucid/Orm';
+import ColorHelper from 'App/Helpers/ColorHelper';
 import Course from './Course';
 // eslint-disable-next-line import/no-cycle
 import LessonContent from './LessonContent';
@@ -58,4 +59,13 @@ export default class Lesson extends BaseModel {
   public static assignLessonId(lesson: Lesson) {
     lesson.id = nanoid();
   }
+
+  @beforeCreate()
+  public static async assignRandomColor(course: Course) {
+    const color = await ColorHelper.generateRandomColor();
+
+    if (color) {
+      course.color_id = color.id;
+    }
+  }
 }

app/Repositories/LessonRepository.ts

@@ -72,10 +72,13 @@ export default class LessonRepository {
    * @returns Lesson
    */
   public async create(course: Course, data: CreateLessonValidator['schema']['props']): Promise<Lesson> {
+    await course.loadCount('lessons');
+
     const lesson = await this.Lesson.create({
       title: data.title,
       description: data.description,
       duration: data.duration.toFormat('HH:mm:ss'),
+      display_order: Number.parseInt(course.$extras.lessons_count, 10) + 1,
     });
 
     /**

database/factories/index.ts

@@ -70,7 +70,7 @@ export const LessonFactory = Factory.define(Lesson, ({ faker }) => {
       minute: faker.datatype.number({ min: 30, max: 59 }),
       second: 0,
     }).toFormat('HH:mm:ss'),
-    color_id: faker.datatype.number({ min: 1, max: 25 }),
+    color_id: faker.datatype.number({ min: 1, max: 15 }),
   };
 })
   .relation('content', () => LessonContentFactory)