the-sunken-reach/backend/prisma/schema.prisma

// D&D Campaign Manager — Prisma schema
// Postgres. Run `npx prisma migrate dev --name init` after `DATABASE_URL` is set,
// then `npx prisma db seed` using the seed script built from /seed-data/*.json
// (see CLAUDE_BUILD_PROMPT.md, "Database" section).

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

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

// ---------------------------------------------------------------------------
// Enums
// ---------------------------------------------------------------------------

enum CampaignRole {
  DM
  PLAYER
}

enum Species {
  HUMAN
  HALF_ELF
  ELF
  GNOME
  DWARF
  HALFLING
  DRAGONBORN
  TIEFLING
  HALF_ORC
  ORC
}

enum CharacterClass {
  FIGHTER
  BARBARIAN
  ROGUE
  RANGER
  WIZARD
  SORCERER
  CLERIC
  PALADIN
  BARD
  WARLOCK
  DRUID
  MONK
}

enum Ability {
  STR
  DEX
  CON
  INT
  WIS
  CHA
}

enum Skill {
  ACROBATICS
  ANIMAL_HANDLING
  ARCANA
  ATHLETICS
  DECEPTION
  HISTORY
  INSIGHT
  INTIMIDATION
  INVESTIGATION
  MEDICINE
  NATURE
  PERCEPTION
  PERFORMANCE
  PERSUASION
  RELIGION
  SLEIGHT_OF_HAND
  STEALTH
  SURVIVAL
}

enum BuildStage {
  NOT_STARTED
  ROLLING_SPECIES
  ROLLING_CLASS
  ROLLING_MOTIVATION
  ASSIGNING_SCORES
  ASSIGNING_PROFICIENCIES
  CHOOSING_ABILITIES
  CHOOSING_BACKGROUND
  CHOOSING_APPEARANCE
  CHOOSING_EQUIPMENT
  COMPLETE
}

enum EncounterStatus {
  PLANNING
  ACTIVE
  COMPLETE
}

// What kind of scene an encounter is: a fight run in initiative order, or a
// quest scene built around NPCs and an objective.
enum EncounterMode {
  BATTLE
  QUEST
}

enum NpcDisposition {
  FRIENDLY
  NEUTRAL
  HOSTILE
}

enum RewardType {
  GOLD
  WEAPON
  ITEM
}

// The coins a character carries. Their worth is fixed in utils/grants.js:
// 1 gold = 10 silver = 100 copper.
enum Currency {
  GOLD
  SILVER
  COPPER
}

enum NoteVisibility {
  DM_ONLY
  SHARED
}

enum DiceMode {
  DIGITAL
  PHYSICAL
}

// ---------------------------------------------------------------------------
// Identity & campaigns
// ---------------------------------------------------------------------------

model User {
  id           String   @id @default(cuid())
  email        String   @unique
  passwordHash String
  displayName  String
  createdAt    DateTime @default(now())
  updatedAt    DateTime @updatedAt

  memberships       CampaignMember[]
  charactersOwned   Character[]      @relation("PlayerCharacters")
  charactersCreated Character[]      @relation("CreatedBy")
  notesAuthored     Note[]
  goldTransactions  GoldTransaction[]

  @@map("users")
}

model Campaign {
  id                 String   @id @default(cuid())
  name               String
  description        String?
  inviteCode         String   @unique
  startingGold       Int      @default(0)
  startingItemCount  Int      @default(0)
  startingSpellCount Int      @default(0)
  skipMotivationRoll Boolean  @default(false)
  // Off: players see only a health bar for monsters and NPCs, not the numbers.
  showMonsterHp      Boolean  @default(true)
  ownerId            String
  // Set while the campaign is archived: kept in full, but moved off the main
  // list and closed to new members until the DM restores it.
  archivedAt         DateTime?
  createdAt          DateTime @default(now())
  updatedAt          DateTime @updatedAt

  members    CampaignMember[]
  characters Character[]
  weapons    Weapon[]
  spells     Spell[]
  items      Item[]
  monsters   Monster[]
  npcs       Npc[]
  encounters Encounter[]
  notes      Note[]
  locations  Location[]

  @@map("campaigns")
}

model Location {
  id          String   @id @default(cuid())
  campaignId  String
  name        String
  description String?
  createdAt   DateTime @default(now())

  campaign   Campaign    @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  characters Character[]
  encounters Encounter[]
  visits     CharacterLocationVisit[]

  @@map("locations")
}

// A location a character has been to. Written whenever a character is put
// somewhere (by the DM, or by an encounter held there), and never removed by
// moving on: it is what decides which locations a player may see.
model CharacterLocationVisit {
  id             String   @id @default(cuid())
  characterId    String
  locationId     String
  firstVisitedAt DateTime @default(now())

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)
  location  Location  @relation(fields: [locationId], references: [id], onDelete: Cascade)

  @@unique([characterId, locationId])
  @@map("character_location_visits")
}

model CampaignMember {
  id         String       @id @default(cuid())
  campaignId String
  userId     String
  role       CampaignRole @default(PLAYER)
  joinedAt   DateTime     @default(now())

  campaign Campaign @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  user     User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([campaignId, userId])
  @@map("campaign_members")
}

// ---------------------------------------------------------------------------
// Characters
// ---------------------------------------------------------------------------

model Character {
  id             String         @id @default(cuid())
  campaignId     String
  userId         String? // owning player; null for a DM-controlled NPC/ally
  createdById    String
  name           String
  species        Species?
  characterClass CharacterClass?
  level          Int            @default(1)
  xp             Int            @default(0)
  motivation     String?

  // Rolled ability scores (before species bonus)
  strScore Int @default(10)
  dexScore Int @default(10)
  conScore Int @default(10)
  intScore Int @default(10)
  wisScore Int @default(10)
  chaScore Int @default(10)

  // Half-Elf's flexible +1/+1 choice; null unless species = HALF_ELF
  halfElfBonusAbility1 Ability?
  halfElfBonusAbility2 Ability?

  currentHp     Int     @default(0)
  tempHp        Int     @default(0)
  // Death saves, counted while the character is at 0 HP (utils/hp.js). Three
  // failures is dead; three successes sets `stable` and clears the tallies.
  deathSaveSuccesses Int     @default(0)
  deathSaveFailures  Int     @default(0)
  stable             Boolean @default(false) // at 0 HP but no longer rolling
  armorBonus    Int     @default(0) // flat AC bonus from equipped armor/shield
  speedOverride Int?

  // The next three are composed by the builder from the player's picks
  // (game/data/characterOptions.js). After that only the DM can edit them.
  specialAbilities String? // shown in the quick-stats panel
  // The purse: each coin is counted on its own and only changes through the
  // money ledger (GoldTransaction).
  gold             Int     @default(0)
  silver           Int     @default(0)
  copper           Int     @default(0)

  background   String?
  appearance   String?
  privateNotes String? // visible to the owning player only — not even the DM

  diceMode DiceMode @default(DIGITAL) // chosen once, before the first build roll

  currentLocationId String?

  buildStage BuildStage @default(NOT_STARTED)
  buildState Json? // in-progress dice rolls / pending choices while building

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  campaign        Campaign  @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  user            User?     @relation("PlayerCharacters", fields: [userId], references: [id])
  createdBy       User      @relation("CreatedBy", fields: [createdById], references: [id])
  currentLocation Location? @relation(fields: [currentLocationId], references: [id], onDelete: SetNull)

  skillProficiencies CharacterSkillProficiency[]
  saveProficiencies  CharacterSaveProficiency[]
  inventoryItems     InventoryItem[]
  goldTransactions   GoldTransaction[]
  weapons            CharacterWeapon[]
  spells             CharacterSpell[]
  notes              Note[]
  encounterEntries   EncounterParticipant[]
  locationVisits     CharacterLocationVisit[]

  @@map("characters")
}

model CharacterSkillProficiency {
  id          String  @id @default(cuid())
  characterId String
  skill       Skill
  proficient  Boolean @default(true)
  expertise   Boolean @default(false) // double proficiency bonus, e.g. Rogue

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)

  @@unique([characterId, skill])
  @@map("character_skill_proficiencies")
}

model CharacterSaveProficiency {
  id          String  @id @default(cuid())
  characterId String
  ability     Ability
  proficient  Boolean @default(true)

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)

  @@unique([characterId, ability])
  @@map("character_save_proficiencies")
}

// ---------------------------------------------------------------------------
// Weapons & inventory
// ---------------------------------------------------------------------------

model Weapon {
  id           String   @id @default(cuid())
  campaignId   String
  name         String
  damageDice   String // e.g. "1d8"
  damageType   String // e.g. "slashing"
  attackAbility String  // "STR" | "DEX" | "FINESSE" (finesse = better of STR/DEX)
  properties   String[] // e.g. ["finesse", "light", "thrown"]
  rangeNormal  Int?
  rangeLong    Int?
  // damageDice is the level-1 damage; a held copy's dice climb the damage
  // ladder (game/calculations.js) by this many rungs per level above 1.
  damageScaling Int     @default(1)
  // The level this weapon starts at: a held copy is never below it, and
  // damageDice is the damage at this level.
  minLevel      Int     @default(1)
  // Offered in the character builder's starting-equipment step. Off by default:
  // the DM opts entries in, so the pool can hold gear that must be earned.
  isStartingOption Boolean @default(false)
  createdAt    DateTime @default(now())

  campaign Campaign          @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  assigned CharacterWeapon[]
  rewards  EncounterReward[]

  @@map("weapons")
}

model CharacterWeapon {
  id          String   @id @default(cuid())
  characterId String
  weaponId    String
  quantity    Int      @default(1)
  equipped    Boolean  @default(false)
  level       Int      @default(1) // this copy's level; the character must be at least this level to use it

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)
  weapon    Weapon    @relation(fields: [weaponId], references: [id], onDelete: Cascade)

  @@unique([characterId, weaponId])
  @@map("character_weapons")
}

// Campaign-level item pool, DM-managed like weapons and spells.
model Item {
  id               String   @id @default(cuid())
  campaignId       String
  name             String
  description      String?
  damageDice       String? // optional dice (damage, healing...) at its starting level; scales like a weapon's
  damageScaling    Int      @default(1)
  minLevel         Int      @default(1)
  isStartingOption Boolean  @default(false)
  createdAt        DateTime @default(now())

  campaign Campaign        @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  held     InventoryItem[]
  rewards  EncounterReward[]

  @@map("items")
}

// An Item from the campaign pool held by a character.
model InventoryItem {
  id          String   @id @default(cuid())
  characterId String
  itemId      String
  quantity    Int      @default(1)
  equipped    Boolean  @default(false)
  level       Int      @default(1)

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)
  item      Item      @relation(fields: [itemId], references: [id], onDelete: Cascade)

  @@unique([characterId, itemId])
  @@map("inventory_items")
}

// Ledger behind a character's purse: every change to a coin balance is one
// row here. (The name predates silver and copper.)
model GoldTransaction {
  id           String   @id @default(cuid())
  characterId  String
  currency     Currency @default(GOLD) // which coin this entry is in
  amount       Int // signed: positive = gained, negative = spent
  balanceAfter Int // that coin's balance afterwards
  reason       String?
  createdById  String?
  createdAt    DateTime @default(now())

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)
  createdBy User?     @relation(fields: [createdById], references: [id], onDelete: SetNull)

  @@index([characterId, createdAt])
  @@map("gold_transactions")
}

// ---------------------------------------------------------------------------
// Spells
// ---------------------------------------------------------------------------

model Spell {
  id          String  @id @default(cuid())
  campaignId  String
  name        String
  level       Int // 0 = cantrip. Also the character level needed to use the spell.
  damageDice  String? // fixed; spells don't level up
  school      String?
  castingTime String?
  range       String?
  duration    String?
  description String?
  isStartingOption Boolean @default(false)

  campaign Campaign         @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  known    CharacterSpell[]

  @@map("spells")
}

model CharacterSpell {
  id          String  @id @default(cuid())
  characterId String
  spellId     String
  prepared    Boolean @default(false)

  character Character @relation(fields: [characterId], references: [id], onDelete: Cascade)
  spell     Spell     @relation(fields: [spellId], references: [id], onDelete: Cascade)

  @@unique([characterId, spellId])
  @@map("character_spells")
}

// ---------------------------------------------------------------------------
// Monsters & encounters
// ---------------------------------------------------------------------------

model Monster {
  id            String  @id @default(cuid())
  campaignId    String
  name          String
  ac            Int
  maxHp         Int
  speed         Int     @default(30)
  strScore      Int     @default(10)
  dexScore      Int     @default(10)
  conScore      Int     @default(10)
  intScore      Int     @default(10)
  wisScore      Int     @default(10)
  chaScore      Int     @default(10)
  attackBonus   Int     @default(0)
  damageDice    String?
  challengeRating String?
  specialTrait  String?
  notes         String?

  campaign             Campaign               @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  encounterAppearances EncounterParticipant[]

  @@map("monsters")
}

// A non-player character the DM runs: a quest-giver, shopkeeper, rival...
// Combat stats are optional — most NPCs are there to be talked to.
model Npc {
  id          String         @id @default(cuid())
  campaignId  String
  name        String
  role        String? // e.g. "Innkeeper", "Captain of the Watch"
  disposition NpcDisposition @default(NEUTRAL)
  description String? // what the party can see and knows
  dmNotes     String? // secrets, motives — never sent to players
  ac          Int?
  maxHp       Int?
  attackBonus Int?
  damageDice  String?
  createdAt   DateTime       @default(now())

  campaign             Campaign               @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  encounterAppearances EncounterParticipant[]

  @@map("npcs")
}

model Encounter {
  id           String          @id @default(cuid())
  campaignId   String
  name         String
  mode         EncounterMode   @default(BATTLE)
  status       EncounterStatus @default(PLANNING)
  currentRound Int             @default(1)
  // Whose turn it is in a battle; null until the fight starts.
  activeParticipantId String?
  // Who is being attacked (or healed) right now, shown to everyone, in the
  // order they were picked. More than one makes it an area attack. Picked by
  // the DM or by the player on turn, and cleared when the turn passes.
  targetParticipantIds String[] @default([])
  description  String? // the scene / objective, shown to everyone
  dmNotes      String? // never sent to players
  // Where the scene takes place. While the encounter is in progress, the
  // characters in it are there too.
  locationId   String?
  // Set while archived: kept in full, but off the campaign's list — players
  // no longer see it there at all.
  archivedAt   DateTime?
  // Place in the campaign's own order, lowest first. The DM rearranges it.
  sortOrder    Int             @default(0)
  createdAt    DateTime        @default(now())
  updatedAt    DateTime        @updatedAt

  campaign     Campaign               @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  location     Location?              @relation(fields: [locationId], references: [id], onDelete: SetNull)
  participants EncounterParticipant[]
  rewards      EncounterReward[]

  @@map("encounters")
}

// Loot the DM lines up for an encounter and later hands to a character. Until
// it is awarded it is the DM's secret; awarding it is what actually changes
// the character (gold ledger entry, or the weapon/item added to what they hold).
model EncounterReward {
  id          String     @id @default(cuid())
  encounterId String
  type        RewardType
  gold        Int? // GOLD: how many coins
  currency    Currency   @default(GOLD) // GOLD: which coin they are
  weaponId    String? // WEAPON
  itemId      String? // ITEM
  quantity    Int        @default(1)
  level       Int        @default(1) // gear level the weapon/item is handed over at
  note        String?
  awardedTo   String? // who received it, as display text ("Aria", "Aria, Bo")
  awardedAt   DateTime?
  createdAt   DateTime   @default(now())

  encounter Encounter @relation(fields: [encounterId], references: [id], onDelete: Cascade)
  weapon    Weapon?   @relation(fields: [weaponId], references: [id], onDelete: Cascade)
  item      Item?     @relation(fields: [itemId], references: [id], onDelete: Cascade)

  @@map("encounter_rewards")
}

// A row per combatant in an encounter — a character, a monster or an NPC.
// A monster's currentHp/maxHp live here, per instance. A character's HP has
// one source of truth, the Character row: encounters read and write that, and
// the columns here only hold the last values seen (used if the character is
// later deleted and the row loses its link).
model EncounterParticipant {
  id          String   @id @default(cuid())
  encounterId String
  characterId String?
  monsterId   String?
  npcId       String?
  displayName String // denormalized so a monster can be renamed per-instance, e.g. "Goblin #2"
  // The d20 rolled for initiative (1–20); null until it is rolled.
  initiativeRoll Int?
  // The roll plus the combatant's initiative bonus, worked out when the roll
  // is entered. This is what the turn order sorts on.
  initiative  Int      @default(0)
  currentHp   Int
  maxHp       Int
  conditions  String[] @default([]) // e.g. ["poisoned", "prone"]
  isMonster   Boolean

  encounter Encounter  @relation(fields: [encounterId], references: [id], onDelete: Cascade)
  character Character? @relation(fields: [characterId], references: [id], onDelete: SetNull)
  monster   Monster?   @relation(fields: [monsterId], references: [id], onDelete: SetNull)
  npc       Npc?       @relation(fields: [npcId], references: [id], onDelete: SetNull)

  @@map("encounter_participants")
}

// ---------------------------------------------------------------------------
// Notes
// ---------------------------------------------------------------------------

model Note {
  id          String         @id @default(cuid())
  campaignId  String?
  characterId String?
  authorId    String
  body        String
  visibility  NoteVisibility @default(SHARED)
  createdAt   DateTime       @default(now())

  campaign  Campaign?  @relation(fields: [campaignId], references: [id], onDelete: Cascade)
  character Character? @relation(fields: [characterId], references: [id], onDelete: Cascade)
  author    User       @relation(fields: [authorId], references: [id])

  @@map("notes")
}