import { useState } from 'react'

// 分數狀態接口
interface Score {
  correct: number
  total: number
}

// 進度追蹤狀態接口
interface ProgressTrackerState {
  score: Score
  showTaskListModal: boolean
}

// Hook返回接口
interface UseProgressTrackerReturn extends ProgressTrackerState {
  updateScore: (isCorrect: boolean) => void
  resetScore: () => void
  setShowTaskListModal: (show: boolean) => void
  getAccuracyPercentage: () => number
  getProgressPercentage: (completed: number, total: number) => number
}

export const useProgressTracker = (): UseProgressTrackerReturn => {
  // 進度追蹤狀態
  const [score, setScore] = useState<Score>({ correct: 0, total: 0 })
  const [showTaskListModal, setShowTaskListModal] = useState(false)

  // 更新分數
  const updateScore = (isCorrect: boolean): void => {
    setScore(prev => ({
      correct: isCorrect ? prev.correct + 1 : prev.correct,
      total: prev.total + 1
    }))
  }

  // 重置分數
  const resetScore = (): void => {
    setScore({ correct: 0, total: 0 })
  }

  // 獲取準確率百分比
  const getAccuracyPercentage = (): number => {
    if (score.total === 0) return 0
    return Math.round((score.correct / score.total) * 100)
  }

  // 獲取進度百分比
  const getProgressPercentage = (completed: number, total: number): number => {
    if (total === 0) return 0
    return Math.round((completed / total) * 100)
  }

  return {
    // 狀態
    score,
    showTaskListModal,

    // 操作函數
    updateScore,
    resetScore,
    setShowTaskListModal,
    getAccuracyPercentage,
    getProgressPercentage
  }
}