import type { GameRules } from '../types.ts'
import type { PuctTranspositionTable } from '../bot/PuctTranspositionTable.ts'
import type { PolicyValueEvaluator } from '../bot/PuctSearch.ts'

export type PlayerColor = 0 | 1
export type Swap2Phase = 'swap2_phase0' | 'swap2_phase1' | 'swap2_phase2' | 'play'
export type Swap2Phase1Decision = 'offer' | 'player1' | 'player2'
export type Swap2ColorDecision = 'player1' | 'player2'

export interface PolicyPlacement {
  x: number
  y: number
  probability: number
}

export interface PolicyTarget {
  placements: PolicyPlacement[]
  specialActions?: {
    choosePlayer1?: number
    choosePlayer2?: number
    offerTwo?: number
  }
}

export interface MctsTarget {
  phase: Swap2Phase
  moveNumber?: number
  actorBotId: string
  actorBotParams: Record<string, number | string | boolean>
  player: PlayerColor
  actorSeat?: PlayerColor
  actorColor?: PlayerColor
  stoneColor?: PlayerColor
  playerToMove?: PlayerColor
  selectedMove?: { x: number; y: number }
  decision?: Swap2Phase1Decision | Swap2ColorDecision
  policyTarget: PolicyTarget
  mctsValue: number
  temperature: number
}

export interface DatasetMove {
  moveNumber: number
  x: number
  y: number
  player: PlayerColor
  botId: string
  botParams: Record<string, number | string | boolean>
}

export interface DatasetOpeningStone {
  moveNumber: number
  x: number
  y: number
  player: PlayerColor
  placedByBotId: string
  placedByBotParams: Record<string, number | string | boolean>
}

export interface SelfPlayDatasetRecord {
  schemaVersion: 1
  id: string
  seed: number
  rules: GameRules & { boardSize: 15; swap2: true; noOverlines: true }
  bots: {
    openerBotId: string
    chooserBotId: string
    player1BotId: string
    player2BotId: string
  }
  opening: {
    phase1Decision: Swap2Phase1Decision
    phase1BotId: string
    phase1BotParams: Record<string, number | string | boolean>
    phase2Decision: Swap2ColorDecision | null
    phase2BotId: string | null
    phase2BotParams: Record<string, number | string | boolean> | null
    stones: DatasetOpeningStone[]
  }
  result: 'win' | 'draw'
  winner: PlayerColor | null
  moveCount: number
  moves: DatasetMove[]
  mctsOpening: MctsTarget[]
  mctsPlay: MctsTarget[]
  durationMs: number
  createdAt: string
}

export interface PredefinedOpeningStone {
  x: number
  y: number
  player: PlayerColor
}

export type PredefinedOpening = PredefinedOpeningStone[]

export interface OpeningDatasetRecord {
  schemaVersion: 3
  id: string
  seed: number
  opening: {
    id: string
    coordinateSystem: 'center-relative'
    stones: PredefinedOpeningStone[]
  }
  rules: GameRules & { boardSize: 15; swap2: false; noOverlines: true }
  bots: {
    player1BotId: string
    player2BotId: string
  }
  result: 'win' | 'draw'
  winner: PlayerColor | null
  moveCount: number
  moves: DatasetMove[]
  mctsPlay: MctsTarget[]
  durationMs: number
  createdAt: string
}

export type GeneratedDatasetRecord = SelfPlayDatasetRecord | OpeningDatasetRecord

export interface GenerateDatasetOptions {
  games: number
  seed: number
  startIndex?: number
  puctTranspositionTable?: PuctTranspositionTable
  puctGeneration?: number
  modelEvaluator?: PolicyValueEvaluator
  outFile?: string
  openerBotId?: string
  chooserBotId?: string
  openings?: PredefinedOpening[]
}