import { ref } from 'vue'
import { getProvince, tableAddress } from '@/api/address'
import type { Address } from '@/models/address'
import { loading, loadingMore } from '@/utils'
import { runOnceAsync, resetOnceAsyncByPrefix } from '@/composables/useOnceAsync'

/**
 * Shared address page datasets — mobile and desktop views read this module state only.
 */
let initPromise: Promise<void> | null = null
const initialized = ref(false)

export const addressItems = ref<Address[]>([])
export const addressProvinceList = ref<any[]>([])

export function isAddressPageDataInitialized() {
  return initialized.value
}

export async function refreshAddressItems() {
  try {
    loading.value = true
    const data = await tableAddress({ page: 0, limit: 150 })
    addressItems.value = data.rows
  } catch (error) {
    console.error('Address list refresh error:', error)
  } finally {
    loading.value = false
    loadingMore.value = false
  }
}

async function loadAddressItems() {
  const data = await tableAddress({ page: 0, limit: 150 })
  addressItems.value = data.rows
}

async function loadProvinces() {
  addressProvinceList.value = await getProvince()
}

export async function initAddressPageData(force = false) {
  if (!force && initialized.value) {
    return
  }

  if (!force && initPromise) {
    return initPromise
  }

  initPromise = (async () => {
    try {
      if (force) {
        resetAddressPageData()
      }

      loading.value = true

      await Promise.all([
        runOnceAsync('address:items', () => loadAddressItems(), force),
        runOnceAsync('address:provinces', () => loadProvinces(), force),
      ])

      initialized.value = true
    } catch (error) {
      console.error('Address page initialization error:', error)
    } finally {
      loading.value = false
      initPromise = null
    }
  })()

  return initPromise
}

export function resetAddressPageData() {
  initialized.value = false
  initPromise = null
  resetOnceAsyncByPrefix('address:')
  addressItems.value = []
  addressProvinceList.value = []
}