refactor(prisma): improve wallet management schema

prisma/schema.prisma

@@ -27,7 +27,7 @@ model User {
   updatedAt   DateTime  @updatedAt @map("updated_at")
 
   // Relations
-  role               Role                @relation(fields: [roleId], references: [id], onDelete: Cascade)
+  role                Role                 @relation(fields: [roleId], references: [id], onDelete: Restrict)
   wallets             Wallet[]
   categories          Category[]
   transactions        Transaction[]
@@ -38,6 +38,7 @@ model User {
   passwordResetTokens PasswordResetToken[]
   devices             UserDevice[]
 
+  @@index([roleId])
   @@map("users")
 }
 
@@ -55,7 +56,13 @@ model Wallet {
   id          String   @id @default(uuid()) @db.Uuid
   userId      String   @map("user_id") @db.Uuid
   name        String
-  balance   Float
+  balance     Decimal  @default(0) @db.Decimal(18, 2)
+  currency    String   @default("VND") @db.VarChar(3)
+  icon        String?
+  color       String?
+  description String?
+  isDefault   Boolean  @default(false) @map("is_default")
+  isArchived  Boolean  @default(false) @map("is_archived")
   createdAt   DateTime @default(now()) @map("created_at")
   updatedAt   DateTime @updatedAt @map("updated_at")
 
@@ -63,22 +70,30 @@ model Wallet {
   transactions Transaction[]
 
   @@unique([userId, name])
+  @@index([userId])
   @@map("wallets")
 }
 
 model Category {
   id        String          @id @default(uuid()) @db.Uuid
   userId    String          @map("user_id") @db.Uuid
+  parentId  String?         @map("parent_id") @db.Uuid
   name      String
   type      TransactionType
+  icon      String?
+  color     String?
   createdAt DateTime        @default(now()) @map("created_at")
   updatedAt DateTime        @updatedAt @map("updated_at")
 
   user         User          @relation(fields: [userId], references: [id], onDelete: Cascade)
+  parent       Category?     @relation("CategoryHierarchy", fields: [parentId], references: [id], onDelete: SetNull)
+  children     Category[]    @relation("CategoryHierarchy")
   transactions Transaction[]
   budgets      Budget[]
 
   @@unique([userId, name, type])
+  @@index([userId])
+  @@index([parentId])
   @@map("categories")
 }
 
@@ -87,17 +102,25 @@ model Transaction {
   userId      String          @map("user_id") @db.Uuid
   walletId    String          @map("wallet_id") @db.Uuid
   categoryId  String          @map("category_id") @db.Uuid
-  amount      Float
+  amount      Decimal         @db.Decimal(18, 2)
   type        TransactionType
   description String?
+  receiptUrl  String?         @map("receipt_url")
+  location    String?
   date        DateTime
   createdAt   DateTime        @default(now()) @map("created_at")
   updatedAt   DateTime        @updatedAt @map("updated_at")
 
   user     User     @relation(fields: [userId], references: [id], onDelete: Cascade)
-  wallet   Wallet   @relation(fields: [walletId], references: [id], onDelete: Cascade)
+  wallet   Wallet   @relation(fields: [walletId], references: [id], onDelete: Restrict)
   category Category @relation(fields: [categoryId], references: [id], onDelete: Restrict)
 
+  @@index([userId])
+  @@index([walletId])
+  @@index([categoryId])
+  @@index([date])
+  @@index([userId, date])
+  @@index([userId, type])
   @@map("transactions")
 }
 
@@ -105,16 +128,17 @@ model Budget {
   id         String   @id @default(uuid()) @db.Uuid
   userId     String   @map("user_id") @db.Uuid
   categoryId String   @map("category_id") @db.Uuid
-  name       String
-  amount     Float
+  amount     Decimal  @db.Decimal(18, 2)
   startDate  DateTime @map("start_date")
   endDate    DateTime @map("end_date")
   createdAt  DateTime @default(now()) @map("created_at")
   updatedAt  DateTime @updatedAt @map("updated_at")
 
   user     User     @relation(fields: [userId], references: [id], onDelete: Cascade)
-  category Category @relation(fields: [categoryId], references: [id], onDelete: Cascade)
+  category Category @relation(fields: [categoryId], references: [id], onDelete: Restrict)
 
+  @@index([categoryId])
+  @@index([userId, startDate, endDate])
   @@map("budgets")
 }
 
@@ -143,6 +167,7 @@ model UserSocial {
   user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 
   @@unique([provider, providerUserId])
+  @@index([userId])
   @@map("user_socials")
 }
 
@@ -155,6 +180,7 @@ model VerificationToken {
 
   user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 
+  @@index([userId])
   @@map("verification_tokens")
 }
 
@@ -167,6 +193,7 @@ model PasswordResetToken {
 
   user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 
+  @@index([userId])
   @@map("password_reset_tokens")
 }
 
@@ -184,5 +211,3 @@ model UserDevice {
   @@unique([userId, deviceHash])
   @@map("user_devices")
 }
-
-