// 神明系統 - 與 API 整合
import { apiService } from './api-service.js'

export class TempleSystem {
  constructor(petSystem, api = apiService) {
    this.petSystem = petSystem
    this.api = api
    this.deities = []
  }

  // 初始化（從 API 載入神明資料）
  async initialize() {
    try {
      this.deities = await this.api.getDeities()
      console.log(`[TempleSystem] 載入 ${this.deities.length} 位神明`)
    } catch (error) {
      console.error('[TempleSystem] 載入神明失敗:', error)
      // 降級到本地載入
      const { DEITIES } = await import('../data/deities.js')
      this.deities = DEITIES
    }
  }

  // 獲取所有神明
  getDeities() {
    return [...this.deities]
  }

  // 獲取當前神明
  getCurrentDeity() {
    const state = this.petSystem.getState()
    return this.deities.find(d => d.id === state.currentDeityId) || this.deities[0]
  }

  // 切換神明
  async switchDeity(deityId) {
    const deity = this.deities.find(d => d.id === deityId)
    if (!deity) {
      return { success: false, message: '找不到該神明' }
    }

    await this.petSystem.updateState({ currentDeityId: deityId })
    return { success: true, deity }
  }

  // 祈福（每日上限 3 次）
  async pray() {
    const state = this.petSystem.getState()
    
    if (state.dailyPrayerCount >= 3) {
      return { success: false, message: '今日祈福次數已用完' }
    }

    try {
      const result = await this.api.prayToDeity({
        deityId: state.currentDeityId,
        petState: state
      })

      // 更新好感度
      const currentFavor = state.deityFavors[state.currentDeityId] || 0
      const newFavor = Math.min(100, currentFavor + result.favorIncrease)
      
      await this.petSystem.updateState({
        deityFavors: {
          ...state.deityFavors,
          [state.currentDeityId]: newFavor
        },
        dailyPrayerCount: state.dailyPrayerCount + 1
      })

      // 獲取神明對話
      const deity = this.getCurrentDeity()
      const dialogue = deity.dialogues[Math.floor(Math.random() * deity.dialogues.length)]

      return {
        success: true,
        favorIncrease: result.favorIncrease,
        newFavor,
        dialogue,
        message: result.message
      }
    } catch (error) {
      console.error('[TempleSystem] 祈福失敗:', error)
      return { success: false, message: '祈福失敗' }
    }
  }

  // 獲取好感度星級（每 20 點一星）
  getFavorStars(deityId) {
    const state = this.petSystem.getState()
    const favor = state.deityFavors[deityId] || 0
    const stars = Math.floor(favor / 20)
    return '★'.repeat(stars) + '☆'.repeat(5 - stars)
  }

  // 抽籤
  async drawFortune() {
    try {
      const result = await this.api.drawFortune()
      
      // 根據籤詩等級應用效果
      const { FORTUNE_LOTS } = await import('../data/fortune-lots.js')
      const lot = FORTUNE_LOTS.find(l => l.grade === result.lot.grade) || FORTUNE_LOTS[0]
      
      if (lot.effects?.addBuff) {
        // 應用 Buff（需要透過 eventSystem）
        return {
          success: true,
          lot: result.lot,
          buff: lot.effects.addBuff
        }
      }
      
      return {
        success: true,
        lot: result.lot
      }
    } catch (error) {
      console.error('[TempleSystem] 抽籤失敗:', error)
      return { success: false, message: '抽籤失敗' }
    }
  }
}