finally got the associations to work through black magic

src/app/api/attachment/route.ts

@@ -1,14 +1,12 @@
 'use server'
 
 import { APIError, attemptAPIAction } from "@/util/api/error";
-import { Auth, Post, PostTag, Tag, User } from "@/model/Models";
+import { sequelize, Bucket, Auth, Post, PostTag, Tag, User, dbSync } from "@/model/Models";
 import { cookies } from "next/headers";
 import { Attachment } from "@/model/Attachment";
 import { UUID, randomUUID } from "crypto";
 import { mkdir, mkdirSync, writeFile } from "fs";
-import { Bucket } from "@/model/Bucket";
 import { where } from "@sequelize/core";
-import { PostBucket } from "@/model/Post";
 
 
 
@@ -37,28 +35,28 @@ async function writeFilesToBucket(uuid: UUID, files:any[]) {
 
 async function addToPost(postid:number):Promise<UUID>
 {
-    const post = await Post.findOne({where: {id:postid}, include: {association: Post.associations.postBuckets}});
-    if (!post) throw new APIError({ status: 500, responseText: "invalid postid" });
-    const bucket = await Bucket.create({id:randomUUID()});
-    const bucketPost = await PostBucket.create({bucketId: bucket.id, postId: postid})
+    Post.sync();
+    const post = await Post.findOne({where: {id:postid}});
     
-    console.log(bucketPost);
-    return bucket.id
+    if (!post) throw new APIError({ status: 500, responseText: "invalid postid" });
+    const bucket = await post.createBucket({id:randomUUID()});
+    // const bucketPost = await Post.associations.postBuckets.create({bucketId: bucket.id, postId: postid})
+    
+    // console.log(bucketPost);
+    return bucket.id;
 }
 async function addToBucket(bucketid:number):Promise<UUID> {
     const bucket = await Bucket.findOne({where: {id: bucketid}});
     if (!bucket) throw new APIError({ status: 500, responseText: "invalid bucketid" });
-    return bucket.id
+    return bucket.id;
 }
 
 
 async function tryCreateAttachment(request: Request) {
 
     // Make sure the DB is ready
-    await Attachment.sync();
-    await Bucket.sync();
-    await Post.sync();
-
+    await dbSync;
+    
     // Prepare data
     const formData = await request.formData();
     const requestData:string | Object | undefined = formData.get('data')?.valueOf();

src/app/api/post/route.ts

@@ -1,7 +1,7 @@
 'use server'
 
 import { APIError, attemptAPIAction } from "@/util/api/error";
-import { Auth, Post, PostTag, Tag, User } from "@/model/Models";
+import { Auth, Post, PostTag, Tag, User, dbSync } from "@/model/Models";
 import { cookies } from "next/headers";
 
 
@@ -9,9 +9,7 @@ import { cookies } from "next/headers";
 async function tryCreatePost(request: Request) {
 
     // Make sure the DB is ready
-    await PostTag.sync();
-    await Tag.sync();
-    await Post.sync();
+    const sync = await dbSync;
     
     // Prepare data
     const requestBody = await request.json();

src/app/api/setupDB/route.ts

@@ -4,17 +4,14 @@ import { cookies } from "next/headers";
 
 import { APIError} from "@/util/api/error"
 import { UserAuth, parseBasicAuth, getAssociatedUser } from "@/util/api/user"
-import { Auth, Post, Tag, User } from "@/model/Models";
-import { Project } from "@/model/Project";
-import { Attachment } from "@/model/Attachment";
-import { Bucket } from "@/model/Bucket";
-import { DBState } from "@/model/DBState";
+import { Attachment, Auth, Bucket, DBState, Post, PostTag, Project, Tag, User, UserPerms,dbSync,sequelize} from "@/model/Models";
 import Sequelize, { DataTypes } from "@sequelize/core";
 import { SqliteColumnsDescription, SqliteDialect, SqliteQueryInterface } from "@sequelize/sqlite3";
 import { hashPassword } from "@/util/Auth";
 
 
 async function seedDatabase(queryInterface:SqliteQueryInterface<SqliteDialect>){
+    
     const password = await hashPassword('changeme');
     const project = await Project.findOne({where: {
         readableIdentifier: 'blog'
@@ -43,21 +40,10 @@ async function seedDatabase(queryInterface:SqliteQueryInterface<SqliteDialect>){
 }
 
 async function trySetup(request:Request){
+    await dbSync;
 
-    const sequelize = await new Sequelize({
-        dialect: SqliteDialect,
-        storage: 'db.sqlite'
-    })
     const queryInterface = sequelize.queryInterface
-    // await User.sync();
-    await Auth.sync();
-    await User.sync();
-    await Attachment.sync();
-    await Bucket.sync();
-    await Project.sync()
-    await Tag.sync();
-    await Post.sync();
-    await DBState.sync();
+    
 
     const version = (await DBState.findAll()).sort((a,b)=> ((a.version > b.version) ? 1 : -1)).map(a=>a.version)[0];
 

src/app/api/user/route.ts

@@ -10,15 +10,16 @@
 
 import { APIError } from "@/util/api/error";
 import { UserAuth } from "@/util/api/user";
-import { UserPerms, User, Auth } from "@/model/Models"; // Do not alter "unused" imports, they are required to perform the nescessairy includes on the User model
+import { Attachment, Auth, Bucket, DBState, Post, PostTag, Project, Tag, User, UserPerms,dbSync,sequelize} from "@/model/Models";
 import { hashPassword } from "@/util/Auth";
+import { addUserScopes } from "@/model/User";
 
 
 // Attempt to register a new User
-async function attemptRegister(request:Request){
+async function attemptRegister(request:Request){    
+    // Sync db
+    await dbSync;
     
-    // Sync User model
-    User.sync();
     // Get request body
     const requestBody:Partial<UserAuth> = await request.json();
     // Handle edgecases
@@ -73,6 +74,7 @@ export async function POST(request:Request){
 }
 
 async function attemptGetUsers(request:Request){
+    await dbSync;
     // Get users with scopes applied
     const users = await User.withScope(['defaultScope','withPerms','withAuthtokens']).findAll();
     return new Response(

src/model/APIKey.ts

@@ -34,9 +34,3 @@ export class APIKey extends Model<InferAttributes<APIKey>, InferCreationAttribut
     declare updatedAt: CreationOptional<Date>;
     
 }
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [APIKey]
-});

src/model/Attachment.ts

@@ -26,10 +26,5 @@ export class Attachment extends Model<InferAttributes<Attachment>, InferCreation
     declare static associations: {
         bucket: Association<Bucket, Attachment>;
     };
+    
 }
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [Attachment]
-})

src/model/Auth.ts

@@ -46,9 +46,3 @@ export class Auth extends Model<InferAttributes<Auth>, InferCreationAttributes<A
     };
 }
 
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [Auth]
-});

src/model/Bucket.ts

@@ -1,4 +1,4 @@
-import { Association, BelongsToGetAssociationMixin, BelongsToManyGetAssociationsMixin, DataTypes, ForeignKey, InferAttributes, InferCreationAttributes, Model, NonAttribute, Sequelize, sql } from "@sequelize/core";
+import { Association, BelongsToGetAssociationMixin, BelongsToManyAddAssociationMixin, BelongsToManyCreateAssociationMixin, BelongsToManyGetAssociationsMixin, BelongsToManyRemoveAssociationMixin, BelongsToManySetAssociationsMixin, DataTypes, ForeignKey, InferAttributes, InferCreationAttributes, Model, NonAttribute, Sequelize, sql } from "@sequelize/core";
 import { Post } from "./Post";
 
 import { SqliteDialect } from '@sequelize/sqlite3';
@@ -14,19 +14,14 @@ export class Bucket extends Model<InferAttributes<Bucket>, InferCreationAttribut
     declare id: UUID
     
     /** Defined by {@link Post.buckets} */
-    declare bucketPosts?:NonAttribute<Post>[];
+    declare posts?:NonAttribute<Post>[];
+    
 
     /** Defined by {@link Attachment.bucket} */
     declare attachments?:NonAttribute<Attachment>[];
 
     declare static associations: {
-        bucketPosts: Association<Post, Bucket>;
+        posts: Association<Post, Bucket>;
         attachments: Association<Attachment, Bucket>;
     };
 }
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [Bucket]
-})

src/model/DBState.ts

@@ -32,9 +32,3 @@ export class DBState extends Model<InferAttributes<DBState>, InferCreationAttrib
     
 }
 
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [DBState]
-});
-

src/model/Models.ts

@@ -1,15 +1,29 @@
-import { User } from './User';
 import { Auth } from './Auth';
-import { UserPerms } from './UserPerms';
-import { Post } from './Post';
-import { Tag } from './Tag';
+import { Attachment } from './Attachment';
+import { Bucket } from './Bucket';
+import { DBState } from './DBState';
+import { Post, PostBucket } from './Post';
 import { PostTag } from './PostTag';
+import { Project } from './Project';
+import { Tag } from './Tag';
+import { User, addUserScopes } from './User';
+import { UserPerms, addUserPermsScopes } from './UserPerms';
+import { SqliteDialect } from '@sequelize/sqlite3';
+import Sequelize from '@sequelize/core';
 
-User.sync();
-Auth.sync();
-UserPerms.sync();
-PostTag.sync();
-Tag.sync();
-Post.sync();
 
-export { User, Auth, UserPerms, Post, Tag, PostTag }
+const sequelize = new Sequelize({
+    dialect: SqliteDialect,
+    storage: 'db.sqlite',
+    models: [Auth, Attachment, Bucket, DBState, Post, PostBucket, PostTag, Project, Tag, User, UserPerms],
+
+});
+
+
+const dbSync = (async ()=> await sequelize.sync())().then(()=>{
+    addUserScopes();
+    addUserPermsScopes();
+});
+
+
+export { sequelize, dbSync, Auth, Attachment, Bucket, DBState, Post, PostBucket, PostTag, Project, Tag, User, UserPerms }

src/model/Post.ts

@@ -1,4 +1,4 @@
-import { Association, BelongsToGetAssociationMixin, BelongsToManyAssociation, BelongsToManyCreateAssociationMixin, CreationOptional, DataTypes, ForeignKey, InferAttributes, InferCreationAttributes, Model, NonAttribute, Sequelize } from "@sequelize/core";import { User } from "./User";
+import { Association, BelongsToGetAssociationMixin, BelongsToManyAddAssociationMixin, BelongsToManyAssociation, BelongsToManyCreateAssociationMixin, BelongsToManyGetAssociationsMixin, BelongsToManyRemoveAssociationMixin, BelongsToManySetAssociationsMixin, CreationOptional, DataTypes, ForeignKey, InferAttributes, InferCreationAttributes, Model, NonAttribute, Sequelize } from "@sequelize/core";import { User } from "./User";
 
 import { SqliteDialect } from '@sequelize/sqlite3';
 import { Attribute, AutoIncrement, BelongsTo, BelongsToMany, CreatedAt, Default, HasMany, NotNull, PrimaryKey, Unique, UpdatedAt } from "@sequelize/core/decorators-legacy";
@@ -49,11 +49,17 @@ export class Post extends Model<InferAttributes<Post>, InferCreationAttributes<P
     @BelongsToMany(()=>Tag, { through: { model: ()=>PostTag, unique: false}, inverse: {as: 'taggedPosts'} })
     declare postTags?:NonAttribute<Tag[]>;
 
-    @BelongsToMany(()=>Bucket,{through: { model: ()=> PostBucket, unique: false}, inverse:{as: 'bucketPosts'}, foreignKey: 'postId', otherKey: 'bucketId'})
-    declare postBuckets:NonAttribute<Bucket[]>;
+    
+    @BelongsToMany(()=>Bucket,{through: {model:'PostBucket'}, throughAssociations: {
+        fromSource: 'postPostBuckets',
+        toSource: 'post',
+        fromTarget: 'postBucketPosts',
+        toTarget: 'PostBucket',
+    }, inverse:{as: 'posts'}, foreignKey: 'postId', otherKey: 'bucketId'})
+    declare buckets?:NonAttribute<Bucket[]>;
 
     
-    declare getUser: BelongsToGetAssociationMixin<User>;
+
 
 
     declare static associations: {
@@ -62,16 +68,25 @@ export class Post extends Model<InferAttributes<Post>, InferCreationAttributes<P
         postBuckets: Association<Bucket, Post>
         postTags: Association<Tag, Post>;
     };
+
+    declare getUser: BelongsToGetAssociationMixin<User>;
+    declare getBuckets: BelongsToManyGetAssociationsMixin<Bucket>;
+    declare setBuckets: BelongsToManySetAssociationsMixin<Bucket,Bucket['id']>;
+    declare addBucket: BelongsToManyAddAssociationMixin<Bucket,Bucket['id']>;
+    declare addBuckets: BelongsToManyAddAssociationMixin<Bucket,Bucket['id']>;
+    declare removeBucket: BelongsToManyRemoveAssociationMixin<Bucket,Bucket['id']>;
+    declare removeBuckets: BelongsToManyRemoveAssociationMixin<Bucket,Bucket['id']>;
+    declare createBucket:  BelongsToManyCreateAssociationMixin<Bucket>;
 }
-export class PostBucket extends Model<InferAttributes<PostBucket>, InferCreationAttributes<PostBucket>>{
+
+export class PostBucket extends Model<InferAttributes<PostBucket>, InferCreationAttributes<PostBucket>> {
     declare postId: number;
     declare bucketId: UUID;
-}
 
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [Post, PostBucket]
-})
+    declare post?:NonAttribute<Post>
+    declare bucket?:NonAttribute<Bucket>
 
-PostBucket.sync();
+
+
+
+  }

src/model/PostTag.ts

@@ -11,10 +11,5 @@ class PostTag extends Model<InferAttributes<PostTag>,InferCreationAttributes<Pos
     declare tagId:number;
 }
 
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [PostTag]
-})
 
 export { PostTag }

src/model/Project.ts

@@ -17,9 +17,3 @@ export class Project extends Model<InferAttributes<Project>, InferCreationAttrib
     };
     
 }
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [Project]
-})

src/model/Tag.ts

@@ -18,9 +18,3 @@ export class Tag extends Model<InferAttributes<Tag>, InferCreationAttributes<Tag
         posts: Association<Post, Tag>;
     };
 }
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [Tag]
-})

src/model/User.ts

@@ -22,9 +22,7 @@ type UserCreationAttributes = {
     password:string;
     perms?:Partial<InferAttributes<UserPerms>>
 }
-
 export class User extends Model<InferAttributes<User>, InferCreationAttributes<User>>{
-    
     @Attribute(DataTypes.INTEGER)
     @PrimaryKey
     @AutoIncrement
@@ -63,24 +61,16 @@ export class User extends Model<InferAttributes<User>, InferCreationAttributes<U
     };
     
 }
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [User]
-});
-
-
-User.addScope('defaultScope',{
-    attributes: {
-        exclude: ['password', 'createdAt', 'updatedAt'],
-    }
-});
-
-User.addScope('withPerms',{
-    include: [{association: 'perms' }]
-})
-
-User.addScope('withAuthtokens',{
-    include: [{association: 'authtokens'}]
-})
+export function addUserScopes(){
+    User.addScope('defaultScope',{
+        attributes: {
+            exclude: ['password', 'createdAt', 'updatedAt'],
+        }
+    });
+    User.addScope('withPerms',{
+        include: [{association: 'perms' }]
+    })
+    User.addScope('withAuthtokens',{
+        include: [{association: 'authtokens'}]
+    })
+}

src/model/UserPerms.ts

@@ -26,13 +26,7 @@ export class UserPerms extends Model<InferAttributes<UserPerms>, InferCreationAt
 
 }
 
-
-const sequelize = new Sequelize({
-    dialect: SqliteDialect,
-    storage: 'db.sqlite',
-    models: [UserPerms],
-});
-
+export function addUserPermsScopes(){
 
 UserPerms.addScope('defaultScope',{
     attributes: {
@@ -43,4 +37,6 @@ UserPerms.addScope('withTimestamps',{
     attributes: {
         include: ['createdAt', 'updatedAt'],
     }
-});
+});
+}
+