// This is your Prisma schema file,
// learn more about it in the docs: https://pris.ly/d/prisma-schema

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

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

// https://github.com/pantharshit00/prisma-docs-generator
generator docs {
  provider = "node node_modules/prisma-docs-generator"
  output   = "../docs"
}

// https://github.com/notiz-dev/prisma-dbml-generator
// Viewer: https://dbdiagram.io/d
generator dbml {
  provider    = "prisma-dbml-generator"
  output      = "../docs"
  outputName  = "schema.dbml"
  projectName = "AssetFlow"
}

enum itemStatus {
  normal
  borrowed
  stolen
  lost
}

model Item {
  id      Int        @id @unique @default(autoincrement())
  SKU     String?    @unique
  amount  Int        @default(1)
  name    String
  comment String?
  status  itemStatus @default(normal) /// TODO: Would it be better to create a separate model for this as well instead of providing several static statuses to choose from(enum)?

  manufacturer String

  category   itemCategory? @relation(fields: [categoryId], references: [id])
  categoryId Int?

  items    Item[] @relation("items") /// Item beinhaltet..
  baseItem Item[] @relation("items") /// Item zugehörig zu.

  storageLocation   StorageLocation? @relation(fields: [storageLocationId], references: [id])
  storageLocationId Int?

  createdAt  DateTime @default(now())
  updatedAt  DateTime @updatedAt
  importedBy String?
}

model StorageLocation {
  id            Int          @id @default(autoincrement())
  name          String       @unique /// This is our LocationID for external use prefixed with: '%StorageUnit%_'
  storageUnit   StorageUnit? @relation(fields: [storageUnitId], references: [id])
  storageUnitId Int?
  Item          Item[]
}

/// A StorageUnit is the base and can hold multiple StorageLocations.
model StorageUnit {
  id   Int    @id @default(autoincrement())
  name String @unique

  contactInfo   contactInfo @relation(fields: [contactInfoId], references: [id])
  contactInfoId Int

  StorageLocation StorageLocation[]
}

model itemCategory {
  id          Int     @id @default(autoincrement())
  name        String  @unique
  description String?
  Item        Item[]
}

/// TODO: Add relationship to StorageUnit, Item and if necessary to StorageLocation.
model contactInfo {
  id          Int         @id @default(autoincrement())
  type        contactType @default(person)
  name        String?
  lastName    String?
  street      String
  houseNumber String
  zipCode     String
  city        String
  country     String

  StorageUnit StorageUnit[]
}

enum contactType {
  storageUnit
  person
  customer
  company
  partner
  enemy
}