Liking, somewhat

Sources/App/GraphQL/Resolver+Mutation.swift

@@ -22,6 +22,11 @@ struct CreatePostArgs: Codable {
     var content: String
 }
 
+struct LikePostArgs: Codable {
+    var user: Int?
+    var post: String
+}
+
 extension Resolver {
     func editUserInfo(request: Request, arguments: EditUserInfoArgs) async throws -> RegisteredUser {
         let token = try await getAndVerifyAccessToken(req: request)
@@ -111,6 +116,28 @@ extension Resolver {
         try await post.update(on: request.db)
         return post
     }
+
+    func likePost(request: Request, arguments: LikePostArgs) async throws -> LikedPost {
+        try await assertPermission(request: request, .createPosts)
+        let token = try await getAndVerifyAccessToken(req: request)
+        if arguments.user != token.id {
+            try await assertPermission(request: request, .admin)
+        }
+        let lp: LikedPost = .init(postId: arguments.post, userId: arguments.user ?? token.id)
+        try await lp.create(on: request.db)
+        return lp
+    }
+
+//    func unlikePost(request: Request, arguments: LikePostArgs) async throws -> LikedPost {
+//        try await assertPermission(request: request, .createPosts)
+//        let token = try await getAndVerifyAccessToken(req: request)
+//        if arguments.user != token.id {
+//            try await assertPermission(request: request, .admin)
+//        }
+//        let lp = LikedPost.
+//        try await lp.delete(on: request.db)
+//        return lp
+//    }
 }
 
 extension RegisteredUser {

Sources/App/Migrations/005_CreateLikedPosts.swift

@@ -0,0 +1,23 @@
+//
+//  005_CreateLikedPosts.swift
+//
+//
+//  Created by Shrish Deshpande on 06/01/24.
+//
+
+import Fluent
+
+struct CreateLikedPosts: Migration {
+    func prepare(on database: Database) -> EventLoopFuture<Void> {
+        return database.schema("likedPosts")
+            .field("id", .uuid, .required)
+            .field("postId", .string, .required, .references("posts", "id"))
+            .field("userId", .int, .required, .references("registeredUsers", "id"))
+            .unique(on: "id")
+            .create()
+    }
+
+    func revert(on database: Database) -> EventLoopFuture<Void> {
+        return database.schema("likedPosts").delete()
+    }
+}

Sources/App/Models/LikedPost.swift

@@ -0,0 +1,32 @@
+//
+//  LikedPost.swift
+//
+//
+//  Created by Shrish Deshpande on 06/01/24.
+//
+
+import Foundation
+
+import Vapor
+import Fluent
+
+final class LikedPost: Model, Content {
+    public static let schema = "likedPosts"
+
+    @ID(key: .id)
+    var id: UUID?
+
+    @Parent(key: "postId")
+    var post: Post
+
+    @Parent(key: "userId")
+    var user: RegisteredUser
+
+    init() {
+    }
+
+    init(postId: String, userId: Int) {
+        self.$post.id = postId
+        self.$user.id = userId
+    }
+}