feat(server): user metadata (#9650)

* feat(server): user metadata

* add missing method to user mock

* update migration to include cascades

* update sql files

* test: fix e2e

* chore: clean up

---------

Co-authored-by: Daniel Dietzler <mail@ddietzler.dev>

server/src/entities/user-metadata.entity.ts

@@ -0,0 +1,63 @@
+import { UserEntity } from 'src/entities/user.entity';
+import { Column, DeepPartial, Entity, ManyToOne, PrimaryColumn } from 'typeorm';
+
+@Entity('user_metadata')
+export class UserMetadataEntity<T extends keyof UserMetadata = UserMetadataKey> {
+  @PrimaryColumn({ type: 'uuid' })
+  userId!: string;
+
+  @ManyToOne(() => UserEntity, (user) => user.metadata, { onUpdate: 'CASCADE', onDelete: 'CASCADE' })
+  user!: UserEntity;
+
+  @PrimaryColumn({ type: 'varchar' })
+  key!: T;
+
+  @Column({ type: 'jsonb' })
+  value!: UserMetadata[T];
+}
+
+export enum UserAvatarColor {
+  PRIMARY = 'primary',
+  PINK = 'pink',
+  RED = 'red',
+  YELLOW = 'yellow',
+  BLUE = 'blue',
+  GREEN = 'green',
+  PURPLE = 'purple',
+  ORANGE = 'orange',
+  GRAY = 'gray',
+  AMBER = 'amber',
+}
+
+export interface UserPreferences {
+  memories: {
+    enabled: boolean;
+  };
+  avatar: {
+    color: UserAvatarColor;
+  };
+}
+
+export const getDefaultPreferences = (user: { email: string }): UserPreferences => {
+  const values = Object.values(UserAvatarColor);
+  const randomIndex = Math.floor(
+    [...user.email].map((letter) => letter.codePointAt(0) ?? 0).reduce((a, b) => a + b, 0) % values.length,
+  );
+
+  return {
+    memories: {
+      enabled: true,
+    },
+    avatar: {
+      color: values[randomIndex],
+    },
+  };
+};
+
+export enum UserMetadataKey {
+  PREFERENCES = 'preferences',
+}
+
+export interface UserMetadata extends Record<UserMetadataKey, Record<string, any>> {
+  [UserMetadataKey.PREFERENCES]: DeepPartial<UserPreferences>;
+}