finance-app/prisma/schema.prisma

generator client {
  provider = "prisma-client"
  output   = "../src/generated/prisma"
}

datasource db {
  provider = "postgresql"
}

model transaction_overrides {
  id                  Int       @id @default(autoincrement())
  transaction_id      Int       @unique
  merchant_normalized String?
  category_override   String?
  notes               String?
  updated_at          DateTime  @default(now()) @updatedAt
}

model participants {
  id                    Int                     @id @default(autoincrement())
  name                  String                  @unique
  email                 String?                 @unique
  created_at            DateTime                @default(now())
  splits                transaction_splits[]
  account_owner_mappings account_owner_mappings[]
}

model account_owner_mappings {
  id             Int          @id @default(autoincrement())
  bank_name      String
  account_number String
  owner_id       Int
  created_at     DateTime     @default(now())
  owner          participants @relation(fields: [owner_id], references: [id])

  @@unique([bank_name, account_number])
}

model transaction_splits {
  id             Int          @id @default(autoincrement())
  transaction_id Int
  participant_id Int
  share_percent  Decimal      @db.Decimal(5, 2)
  settled        Boolean      @default(false)
  settled_at     DateTime?
  created_at     DateTime     @default(now())
  participant    participants @relation(fields: [participant_id], references: [id])

  @@unique([transaction_id, participant_id])
}

model tags {
  id               Int                @id @default(autoincrement())
  name             String             @unique
  color            String             @default("#6366f1")
  created_at       DateTime           @default(now())
  transaction_tags transaction_tags[]
}

model transaction_tags {
  transaction_id Int
  tag_id         Int
  created_at     DateTime @default(now())
  tag            tags     @relation(fields: [tag_id], references: [id], onDelete: Cascade)

  @@id([transaction_id, tag_id])
}

model budgets {
  id           Int      @id @default(autoincrement())
  owner_id     Int
  category     String
  month        DateTime @db.Date
  amount_limit Decimal  @db.Decimal(10, 2)
  created_at   DateTime @default(now())
  updated_at   DateTime @default(now()) @updatedAt

  @@unique([owner_id, category, month])
}