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

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

// User model
model User {
    id                 Int        @id @default(autoincrement())
    createdAt          DateTime   @default(now())
    name               String
    email              String     @unique
    passwordHash       String
    role               String     @default("GUEST") @db.VarChar(10) // Allowed: ADMIN, SCIENTIST, GUEST
    scientist          Scientist? @relation
    purchasedArtefacts Artefact[] @relation("UserPurchasedArtefacts")
    requests           Request[]  @relation("UserRequests")
}

model Request {
    id               Int      @id @default(autoincrement())
    createdAt        DateTime @default(now())
    requestType      String   @db.VarChar(20) // Allowed: NEW_USER, CHANGE_LEVEL, DELETE
    requestingUser   User     @relation("UserRequests", fields: [requestingUserId], references: [id])
    requestingUserId Int
    outcome          String   @default("IN_PROGRESS") @db.VarChar(20) // Allowed: FULFILLED, REJECTED, IN_PROGRESS, CANCELLED, OTHER
}

// Scientist model
model Scientist {
    id            Int           @id @default(autoincrement())
    createdAt     DateTime      @default(now())
    name          String
    level         String        @db.VarChar(10) // JUNIOR, SENIOR
    user          User          @relation(fields: [userId], references: [id])
    userId        Int           @unique
    superior      Scientist?    @relation("SuperiorRelation", fields: [superiorId], references: [id], onDelete: NoAction, onUpdate: NoAction)
    superiorId    Int?
    subordinates  Scientist[]   @relation("SuperiorRelation")
    earthquakes   Earthquake[]  @relation("ScientistEarthquakeCreator")
    observatories Observatory[] @relation("ScientistObservatoryCreator")
    artefacts     Artefact[]    @relation("ScientistArtefactCreator")
}

model Earthquake {
    id        Int      @id @default(autoincrement())
    createdAt DateTime @default(now())
    updatedAt DateTime @updatedAt

    date      DateTime
    code      String   @unique
    magnitude Float
    type      String // e.g. 'volcanic'
    latitude  Float
    longitude Float
    location  String
    depth     String

    creatorId Int?
    creator   Scientist? @relation("ScientistEarthquakeCreator", fields: [creatorId], references: [id])

    artefacts     Artefact[]
    observatories Observatory[] @relation("EarthquakeObservatory")
}

model Observatory {
    id                  Int          @id @default(autoincrement())
    createdAt           DateTime     @default(now())
    updatedAt           DateTime     @updatedAt
    name                String
    location            String
    longitude           String
    latitude            String
    dateEstablished     Int?
    isFunctional        Boolean
    seismicSensorOnline Boolean      @default(true)
    creatorId           Int?
    creator             Scientist?   @relation("ScientistObservatoryCreator", fields: [creatorId], references: [id], onDelete: NoAction, onUpdate: NoAction)
    earthquakes         Earthquake[] @relation("EarthquakeObservatory")
}

model Artefact {
    id              Int        @id @default(autoincrement())
    createdAt       DateTime   @default(now())
    updatedAt       DateTime   @updatedAt
    name            String
    type            String     @db.VarChar(50) // Lava, Tephra, Ash, Soil
    warehouseArea   String
    description     String
    earthquakeId    Int
    earthquake      Earthquake @relation(fields: [earthquakeId], references: [id])
    creatorId       Int?
    creator         Scientist? @relation("ScientistArtefactCreator", fields: [creatorId], references: [id], onDelete: NoAction, onUpdate: NoAction)
    isRequired      Boolean    @default(true)
    dateAddedToShop DateTime?
    shopPrice       Float?
    isSold          Boolean    @default(false)
    purchasedById   Int?
    purchasedBy     User?      @relation("UserPurchasedArtefacts", fields: [purchasedById], references: [id], onDelete: NoAction, onUpdate: NoAction)
    isCollected     Boolean    @default(false)
}

model Pallet {
    id            Int      @id @default(autoincrement())
    createdAt     DateTime @default(now())
    updatedAt     DateTime @updatedAt
    warehouseArea String
    palletNote    String
}