import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import { useScriptStore } from '@stores/script'
import { resolveChannel } from '@constant/channel'
import { IPC_EVENTS, CONFIG_KEYS } from '@lib/constants'
import { v4 as uuidv4 } from 'uuid'

export interface ChannelItem {
  id: string
  channelName: string
  channelUrl: string
}

export const useChannelStore = defineStore('channel', () => {
  const scriptStore = useScriptStore()

  // 用户选中的"一键打开"渠道（持久化到 electron-store）
  const selectedChannels = ref<ChannelItem[]>([])

  // 从脚本 store 动态聚合可用渠道（按 URL 去重）
  const availableChannels = computed<ChannelItem[]>(() => {
    const map = new Map<string, ChannelItem>()
    for (const script of scriptStore.safeScripts) {
      if (!script.channel) continue
      const resolved = resolveChannel(script.channel)
      const url = resolved.url
      if (url && !map.has(url)) {
        map.set(url, {
          id: uuidv4(),
          channelName: resolved.name || url,
          channelUrl: url,
        })
      }
    }
    return Array.from(map.values())
  })

  const loadSelectedChannels = async () => {
    try {
      const result = await window.api.invoke(IPC_EVENTS.GET_CONFIG, CONFIG_KEYS.SELECTED_CHANNELS)
      if (Array.isArray(result)) {
        selectedChannels.value = result
        return
      }
    } catch (err) {
      console.error('[channelStore] loadSelectedChannels failed:', err)
    }
    selectedChannels.value = []
  }

  const saveSelectedChannels = async () => {
    try {
      // 深拷贝剥离 Vue Proxy，避免 IPC structured clone 失败
      const payload = JSON.parse(JSON.stringify(selectedChannels.value))
      await window.api.invoke(IPC_EVENTS.SET_CONFIG, CONFIG_KEYS.SELECTED_CHANNELS, payload)
    } catch (err) {
      console.error('[channelStore] saveSelectedChannels failed:', err)
      throw err
    }
  }

  const addSelectedChannel = (item: ChannelItem) => {
    if (!selectedChannels.value.some((c) => c.channelUrl === item.channelUrl)) {
      selectedChannels.value.push(item)
    }
  }

  const removeSelectedChannel = (id: string) => {
    selectedChannels.value = selectedChannels.value.filter((c) => c.id !== id)
  }

  const setSelectedChannels = (items: ChannelItem[]) => {
    selectedChannels.value = items
  }

  return {
    selectedChannels,
    availableChannels,
    loadSelectedChannels,
    saveSelectedChannels,
    addSelectedChannel,
    removeSelectedChannel,
    setSelectedChannels,
  }
})