// Mirrors of the Go view types (internal/game/view.go).

export type Suit = 'red' | 'blue' | 'yellow'
export type CardKind = 'pet' | 'food' | 'ailment'
export type Phase = 'lobby' | 'shop' | 'arrange' | 'battle' | 'gameover'

export interface Card {
  id: string
  kind: CardKind
  name: string
  tier?: number
  power?: number
  suit?: Suit
  effects?: unknown[]
  effectText?: string
  food?: string
  perk?: boolean
  temporary?: boolean
  ailment?: string // 'spooked' | 'exposed' (Unicorn pack; kind === 'ailment')
}

export interface PlayerView {
  id: string
  name: string
  seat: number
  coins: number
  trophies: number
  roundWins?: number[] // rounds this player won a battle in (public)
  ready: boolean
  connected: boolean
  isBot?: boolean
  deckSize: number
  petCount: number
  avocados?: number // set-aside Avocado tokens (Golden pack)
  firstBuyFree?: boolean // Manta Ray: next buy is free (self only)
  buysThisRound?: number // Blue-Ringed Octopus counter (self only)
  trumpets?: number // banked Trumpets for next battle (Bird of Paradise, self only)
  mana?: number // persistent Mana pool (Unicorn pack; public)
  shopPeek?: Card // Bigfoot's look at the top of the shop deck (self only)
  deck?: Card[]
}

export interface PendingTrade {
  playerId: string
  tier: number
  options: [Card, Card]
}

// Cockatoo (Golden pack): the buyer must reveal one of their pets.
export interface PendingReveal {
  playerId: string
  source: string
  options?: string[] // eligible pet card ids (buyer only)
  apples?: number // fixed apple reward (Quetzalcoatl); 0 = revealed pet's power (Cockatoo)
}

// Water of Youth (Unicorn pack): the buyer must sacrifice one of their pets to
// upgrade into a next-tier card.
export interface PendingSacrifice {
  playerId: string
  source: string
  tier: number
  options?: string[] // eligible pet card ids to sacrifice (buyer only)
}

export interface BattleEvent {
  type:
    | 'prep'
    | 'reveal'
    | 'summon'
    | 'mill'
    | 'rock'
    | 'clash'
    | 'shield'
    | 'strip'
    | 'steal'
    | 'eat'
    | 'heal'
    | 'setaside'
    | 'release'
    | 'trumpet' // a side gains (+) or spends/loses (-) Trumpets (Golden pack)
    | 'prevent' // a Cone Snail shaves damage off a hit (Golden pack)
    | 'mana' // a side gains (+) or spends (-) Mana (Unicorn pack)
    | 'ailment' // a pet gains Ailment cards (Unicorn pack)
    | 'bounce' // a pet is sent to the bottom of its deck (Unicorn: Loveland Frogman)
  seat?: number
  target?: number
  card?: Card
  count?: number
  // clash
  damage?: number[]
  died?: boolean[]
  // rock / strip / steal
  roll?: number
  dice?: number[] // rock: individual die faces (each 0, 1, or 2)
  damageAfter?: number
  targetDied?: boolean
  // eat (new bonus total) / reveal (starting bonus)
  bonus?: number
  // human-readable description of this step for the event log
  text?: string
}

// A round runs one battle per pairing, so a six-player round has three of
// these. Everything inside is indexed by *side* — 0 or 1 within this battle —
// rather than by seat at the table, including BattleEvent.seat/target. `seats`
// maps the two apart. winnerSeat is the exception: it's a real seat.
export interface BattleResult {
  round: number
  seats: number[] // the two seats fighting, first player first
  stackSizes: number[]
  lineups?: Card[][] // each side's arranged deck (top first); public for peeking
  events: BattleEvent[] | null
  winnerSeat: number
  trophies: number
}

// sideOf maps a seat to its side index in a battle, or -1 if it wasn't in it.
export function sideOf(battle: BattleResult, seat: number): number {
  return battle.seats?.indexOf(seat) ?? -1
}

export interface LogEntry {
  seq: number
  round: number
  phase: Phase
  seat: number // acting seat, or -1
  icon?: string
  kind?: string // e.g. 'result' (battle outcome)
  text: string
  source?: string // card id that caused a spawn
  spawn?: string // 'apple' | 'bee'
}

export interface PackInfo {
  id: string
  name: string
  emoji: string
  playable: boolean
}

export interface GameView {
  gameId: string
  code: string
  phase: Phase
  round: number
  maxRounds: number
  maxPets: number
  packs: string[] // selected packs, shuffled together
  packCatalog: PackInfo[] // the choices offered in the lobby
  packsNeeded: number // packs the current table size requires
  hostSeat: number
  minPlayers: number
  maxPlayers: number
  playerCounts: number[] // table sizes a game can start at (2, 4, 6)
  youSeat: number
  turn: number
  prioritySeat: number
  shopRow: Card[]
  deckCounts: number[]
  players: PlayerView[]
  matchups?: [number, number][] // this round's battle pairings (public)
  yourOpponent: number // the seat you face this round, or -1
  pending?: PendingTrade
  pendingReveal?: PendingReveal
  pendingSacrifice?: PendingSacrifice
  battle?: BattleResult // your own battle this round
  battles?: BattleResult[] // every table's, all replayable
  winnerSeat: number // outright winner, or -1 when shared
  winnerSeats?: number[] // everyone holding the title
  log?: LogEntry[]
  debug?: boolean // server DEBUG mode: unlocks the buy-any-card panel
}

export type ClientMessage =
  | { type: 'setPacks'; packs: string[] }
  | { type: 'addBot'; difficulty: string }
  | { type: 'removePlayer'; target: string }
  | { type: 'start' }
  | { type: 'buy'; row: number }
  | { type: 'buyAvocado'; row: number }
  | { type: 'sell'; cards: string[] }
  | { type: 'trade'; cards: string[] }
  | { type: 'tradeChoose'; pick: number }
  | { type: 'revealChoose'; card: string }
  | { type: 'sacrificeChoose'; card: string }
  | { type: 'peek' }
  | { type: 'pass' }
  | { type: 'arrange'; order: string[] }
  | { type: 'ready' }
  | { type: 'debugAdd'; name: string }

export interface Session {
  gameId: string
  code: string
  playerId: string
  token: string
}