import { useEffect, useCallback } from 'react'
import { useGameStore, saveSession, clearSession } from '../stores/gameStore'
import { soundPlayer } from './useSound'
import { useThemeStore } from '../stores/themeStore'
import { useSoundStore } from '../stores/soundStore'
import { socketService } from '../services/socket'
import type { GameRoom, ChatMessage, AnswerResult, Achievement } from '../types'
import type { Reaction } from '../stores/gameStore'

// Team message type
export interface TeamMessage {
  player_name: string
  team: 'A' | 'B'
  message: string
  timestamp: string
}

export function useSocket() {
  const { setRoom, addMessage, setShowStealPrompt, setCurrentQuestion, setGameResult, addReaction, addTeamMessage } =
    useGameStore()

  // Initialize sound player with current theme
  const currentTheme = useThemeStore.getState().currentTheme
  soundPlayer.loadTheme(currentTheme)

  useEffect(() => {
    // Get singleton socket connection
    const socket = socketService.connect()

    // Only set up listeners once globally
    if (socketService.isInitialized) {
      return // No cleanup - socket persists
    }
    socketService.setInitialized()

    // Error handler
    socket.on('error', (data: { message: string }) => {
      console.error('Socket error:', data.message)
    })

    // Room events
    socket.on('room_created', (data: { room: GameRoom }) => {
      setRoom(data.room)
    })

    socket.on('player_joined', (data: { room: GameRoom }) => {
      setRoom(data.room)
      // Play sound when a player joins
      const volume = useSoundStore.getState().volume
      soundPlayer.play('player_join', volume)
    })

    socket.on('player_left', (data: { room: GameRoom }) => {
      setRoom(data.room)
    })

    socket.on('team_changed', (data: { room: GameRoom }) => {
      setRoom(data.room)
    })

    // Reconnection events
    socket.on('rejoin_success', (data: { room: GameRoom; player_name: string; team: 'A' | 'B' }) => {
      console.log('Rejoin successful:', data.player_name)
      setRoom(data.room)
      useGameStore.getState().setPlayerName(data.player_name)
      // Update saved session with possibly new team
      saveSession(data.room.code, data.player_name, data.team)
    })

    socket.on('rejoin_failed', (data: { message: string }) => {
      console.log('Rejoin failed:', data.message)
      clearSession()
    })

    socket.on('player_reconnected', (data: { player_name: string; team: string; room: GameRoom }) => {
      console.log('Player reconnected:', data.player_name)
      setRoom(data.room)
    })

    // Game events
    socket.on('game_started', (data: { room: GameRoom }) => {
      setRoom(data.room)
      // Play game start sound
      const volume = useSoundStore.getState().volume
      soundPlayer.play('game_start', volume)
    })

    socket.on('question_selected', (data: { room: GameRoom; question_id: number }) => {
      setRoom(data.room)
      // Find the question in the board and set it as current
      const questionId = data.question_id
      for (const categoryQuestions of Object.values(data.room.board || {})) {
        const question = (categoryQuestions as Array<{ id: number }>).find(q => q.id === questionId)
        if (question) {
          setCurrentQuestion(question as unknown as import('../types').Question)
          break
        }
      }
    })

    socket.on('answer_result', (data: AnswerResult) => {
      setRoom(data.room)

      // Play appropriate sound based on answer result
      const volume = useSoundStore.getState().volume
      if (data.valid) {
        soundPlayer.play('correct', volume)
        // Clear current question after correct answer
        setCurrentQuestion(null)
      } else {
        soundPlayer.play('incorrect', volume)
      }

      if (!data.valid && !data.was_steal && data.room.can_steal) {
        setShowStealPrompt(true)
      } else if (data.was_steal) {
        // Clear question after steal attempt (success or fail)
        setCurrentQuestion(null)
      }
    })

    socket.on('steal_attempted', (data: { room: GameRoom; success?: boolean }) => {
      setRoom(data.room)
      setShowStealPrompt(false)

      // Play steal sound when a steal is attempted
      const volume = useSoundStore.getState().volume
      soundPlayer.play('steal', volume)
    })

    socket.on('steal_passed', (data: { room: GameRoom }) => {
      setRoom(data.room)
      setShowStealPrompt(false)
      setCurrentQuestion(null)
    })

    socket.on('time_up', (data: { room: GameRoom; was_steal: boolean }) => {
      setRoom(data.room)
      if (!data.was_steal && data.room.can_steal) {
        setShowStealPrompt(true)
      } else {
        setShowStealPrompt(false)
        setCurrentQuestion(null)
      }
    })

    // Chat events
    socket.on('chat_message', (data: ChatMessage) => {
      addMessage(data)
    })

    socket.on('emoji_reaction', (data: { player_name: string; team: string; emoji: string }) => {
      // Legacy handler - redirect to new reaction system
      addReaction({
        player_name: data.player_name,
        team: data.team as 'A' | 'B',
        emoji: data.emoji,
        timestamp: new Date().toISOString(),
      })
    })

    socket.on('receive_reaction', (data: Omit<Reaction, 'id'>) => {
      // Add reaction to the store for display in overlay
      addReaction(data)
    })

    // Team chat events
    socket.on('receive_team_message', (data: TeamMessage) => {
      addTeamMessage(data)
    })

    socket.on('game_finished', (data: {
      room: GameRoom
      winner: 'A' | 'B' | null
      final_scores: { A: number; B: number }
      replay_code: string | null
      achievements_unlocked: Array<{
        player_name: string
        team: 'A' | 'B'
        achievement: unknown
      }>
    }) => {
      setRoom(data.room)

      // Determine if current player is on the winning team
      const currentPlayerName = useGameStore.getState().playerName
      const myTeam = data.room.teams.A.find(p => p.name === currentPlayerName) ? 'A' : 'B'
      const volume = useSoundStore.getState().volume

      if (data.winner === myTeam) {
        soundPlayer.play('victory', volume)
      } else if (data.winner !== null) {
        soundPlayer.play('defeat', volume)
      }

      setGameResult({
        winner: data.winner,
        finalScores: data.final_scores,
        replayCode: data.replay_code,
        achievementsUnlocked: data.achievements_unlocked.map(a => ({
          player_name: a.player_name,
          team: a.team,
          achievement: a.achievement as Achievement
        }))
      })
    })

    // No cleanup - socket connection persists across components
  }, [])

  // Socket methods - use singleton service
  const createRoom = useCallback((playerName: string) => {
    socketService.emit('create_room', { player_name: playerName })
  }, [])

  const joinRoom = useCallback((roomCode: string, playerName: string, team: 'A' | 'B') => {
    socketService.emit('join_room', {
      room_code: roomCode,
      player_name: playerName,
      team,
    })
  }, [])

  const changeTeam = useCallback((team: 'A' | 'B') => {
    socketService.emit('change_team', { team })
  }, [])

  const startGame = useCallback((board: Record<string, unknown>) => {
    socketService.emit('start_game', { board })
  }, [])

  const selectQuestion = useCallback((questionId: number, categoryId: number) => {
    socketService.emit('select_question', {
      question_id: questionId,
      category_id: categoryId,
    })
  }, [])

  const submitAnswer = useCallback(
    (answer: string, question: Record<string, unknown>, isSteal: boolean = false) => {
      socketService.emit('submit_answer', {
        answer,
        question,
        is_steal: isSteal,
      })
    },
    []
  )

  const stealDecision = useCallback((attempt: boolean, questionId: number, answer?: string) => {
    socketService.emit('steal_decision', {
      attempt,
      question_id: questionId,
      answer,
    })
  }, [])

  const sendChatMessage = useCallback((message: string) => {
    socketService.emit('chat_message', { message })
  }, [])

  const sendEmojiReaction = useCallback((emoji: string) => {
    socketService.emit('emoji_reaction', { emoji })
  }, [])

  const sendReaction = useCallback((emoji: string, roomCode?: string, playerName?: string) => {
    socketService.emit('send_reaction', {
      emoji,
      room_code: roomCode,
      player_name: playerName,
    })
  }, [])

  const sendTeamMessage = useCallback(
    (message: string, roomCode: string, team: 'A' | 'B', playerName: string) => {
      socketService.emit('team_message', {
        room_code: roomCode,
        team,
        player_name: playerName,
        message,
      })
    },
    []
  )

  const notifyTimerExpired = useCallback(() => {
    socketService.emit('timer_expired', {})
  }, [])

  const rejoinRoom = useCallback((roomCode: string, playerName: string, team: 'A' | 'B') => {
    socketService.emit('rejoin_room', {
      room_code: roomCode,
      player_name: playerName,
      team,
    })
  }, [])

  return {
    socket: socketService.connect(),
    createRoom,
    joinRoom,
    rejoinRoom,
    changeTeam,
    startGame,
    selectQuestion,
    submitAnswer,
    stealDecision,
    sendChatMessage,
    sendEmojiReaction,
    sendReaction,
    sendTeamMessage,
    notifyTimerExpired,
  }
}