chore: relocate backend into apps/api ahead of monorepo merge

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-27 00:12:54 +08:00 · 2026-08-24 12:20:40 +08:00
parent af44598df6
commit eaa6d2276a
388 changed files with 0 additions and 13998 deletions
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+/***********************************************************************************************************************************************************************
+ * File Name: course_reading_progress.mdl.js
+ * Type of Program: Model
+ * Description: Tracks a user's reading progress through a course hierarchy (course → unit → lesson).
+ *
+ *   CourseReadingProgress — one row per (user, type, reference).
+ *                           UPSERT key: (user_id, type, reference_id)
+ *                           reference_id points to course.uuid | unit.uuid | lesson.uuid based on type.
+ *                           status flips in_progress → completed when the user finishes the item.
+ *                           last_accessed_at updated on every UPSERT.
+ *
+ * Author: Kenneth Obsequio (@lash0000)
+ * Date Created: Jun. 21, 2026
+ ***********************************************************************************************************************************************************************/
+const { DataTypes } = require('sequelize');
+const sequelize = require('../../config/db.config');
+
+const CourseReadingProgress = sequelize.define('CourseReadingProgress', {
+    progress_id: {
+        type: DataTypes.UUID,
+        defaultValue: DataTypes.UUIDV4,
+        primaryKey: true,
+    },
+    user_id: {
+        type: DataTypes.BIGINT,
+        allowNull: false,
+        references: { model: 'users', key: 'user_id' },
+        onDelete: 'CASCADE',
+    },
+    course_id: {
+        type: DataTypes.BIGINT,
+        allowNull: false,
+        references: { model: 'courses', key: 'course_id' },
+        onDelete: 'CASCADE',
+    },
+    reference_id: {
+        type: DataTypes.UUID,
+        allowNull: false,
+        comment: 'uuid of the course | unit | lesson depending on type.',
+    },
+    type: {
+        type: DataTypes.ENUM('course', 'unit', 'lesson'),
+        allowNull: false,
+    },
+    status: {
+        type: DataTypes.ENUM('in_progress', 'completed'),
+        allowNull: false,
+        defaultValue: 'in_progress',
+    },
+    completed_at: {
+        type: DataTypes.DATE,
+        allowNull: true,
+        comment: 'Set when status flips to completed. Null while in_progress.',
+    },
+    last_accessed_at: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        comment: 'Updated on every UPSERT.',
+    },
+
+    // ── Audit trails ────────────────────────────────────────────────────────
+    createdBy: { type: DataTypes.BIGINT, allowNull: true },
+    updatedBy: { type: DataTypes.BIGINT, allowNull: true },
+}, {
+    tableName: 'course_reading_progress',
+    timestamps: true,
+    paranoid: false,    // progress rows are never soft-deleted
+    indexes: [
+        {
+            unique: true,
+            fields: ['user_id', 'type', 'reference_id'],
+            name: 'uq_crp_user_type_reference',
+        },
+        { fields: ['user_id'],   name: 'idx_crp_user_id'   },
+        { fields: ['course_id'], name: 'idx_crp_course_id' },
+        { fields: ['type'],      name: 'idx_crp_type'       },
+        { fields: ['status'],    name: 'idx_crp_status'     },
+    ],
+});
+
+module.exports = CourseReadingProgress;