generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

enum HouseholdType {
  SINGLE
  COUPLE
}

enum IncomeMode {
  PER_PERSON
  HOUSEHOLD
}

enum OneTimeEventType {
  INCOME
  EXPENSE
}

enum TransitionAction {
  CARRY_OVER
  PAYOUT
  SELL
}

model Plan {
  id                   String        @id @default(cuid())
  name                 String
  householdType        HouseholdType @default(SINGLE)
  person1Name          String        @default("Person 1")
  person1CurrentAge    Int
  person2Name          String?
  person2CurrentAge    Int?
  plannedRetirementAge Int           @default(65)
  defaultInflationRate Float         @default(2.0)
  createdAt            DateTime      @default(now())
  updatedAt            DateTime      @updatedAt
  scenarios            Scenario[]
}

model Scenario {
  id         String      @id @default(cuid())
  planId     String
  name       String
  isBaseline Boolean     @default(false)
  sortOrder  Int         @default(0)
  createdAt  DateTime    @default(now())
  updatedAt  DateTime    @updatedAt
  plan       Plan        @relation(fields: [planId], references: [id], onDelete: Cascade)
  phases     LifePhase[]

  @@index([planId])
}

model LifePhase {
  id                      String          @id @default(cuid())
  scenarioId              String
  name                    String
  sortOrder               Int
  durationYears           Int
  isRetirementPhase       Boolean         @default(false)
  incomeMode              IncomeMode      @default(PER_PERSON)
  householdIncome         Float?
  person1Income           Float?
  person2Income           Float?
  householdExpenses       Float           @default(0)
  inflationRate           Float?
  expectedPensionIncome   Float?
  expectedPensionCapital  Float?
  pensionCapitalTaxRate   Float?
  createdAt               DateTime        @default(now())
  updatedAt               DateTime        @updatedAt
  scenario                Scenario        @relation(fields: [scenarioId], references: [id], onDelete: Cascade)
  securities              Security[]
  properties              Property[]
  oneTimeEvents           OneTimeEvent[]
  transitionFrom          PhaseTransition? @relation("TransitionFrom")
  transitionTo            PhaseTransition? @relation("TransitionTo")

  @@index([scenarioId])
}

model Security {
  id                     String    @id @default(cuid())
  lifePhaseId            String
  name                   String
  ownerTag               String?
  startBalance           Float     @default(0)
  expectedReturnRate     Float     @default(5.0)
  annualSavingsAllocation Float    @default(0)
  sortOrder              Int       @default(0)
  createdAt              DateTime  @default(now())
  updatedAt              DateTime  @updatedAt
  lifePhase              LifePhase @relation(fields: [lifePhaseId], references: [id], onDelete: Cascade)

  @@index([lifePhaseId])
}

model Property {
  id                  String    @id @default(cuid())
  lifePhaseId         String
  name                String
  currentValue        Float     @default(0)
  mortgageBalance     Float     @default(0)
  valueGrowthRate     Float     @default(2.0)
  annualAmortization  Float     @default(0)
  saleTaxRatePercent  Float?
  sortOrder           Int       @default(0)
  createdAt           DateTime  @default(now())
  updatedAt           DateTime  @updatedAt
  lifePhase           LifePhase @relation(fields: [lifePhaseId], references: [id], onDelete: Cascade)

  @@index([lifePhaseId])
}

model OneTimeEvent {
  id               String           @id @default(cuid())
  lifePhaseId      String
  name             String
  yearOffset       Int
  amount           Float
  type             OneTimeEventType
  taxRatePercent   Float?
  createdAt        DateTime         @default(now())
  updatedAt        DateTime         @updatedAt
  lifePhase        LifePhase        @relation(fields: [lifePhaseId], references: [id], onDelete: Cascade)

  @@index([lifePhaseId])
}

model PhaseTransition {
  id              String    @id @default(cuid())
  fromPhaseId     String    @unique
  toPhaseId       String    @unique
  securityActions Json      @default("[]")
  propertyActions Json      @default("[]")
  createdAt       DateTime  @default(now())
  updatedAt       DateTime  @updatedAt
  fromPhase       LifePhase @relation("TransitionFrom", fields: [fromPhaseId], references: [id], onDelete: Cascade)
  toPhase         LifePhase @relation("TransitionTo", fields: [toPhaseId], references: [id], onDelete: Cascade)
}