import { defineStore } from 'pinia'
import { ref } from 'vue'

import { useApi } from '../composables/useApi.js'
import { useAsyncAction } from '../composables/useAsyncAction.js'
import { toast } from '../utils/toast.js'

// Backs the announcement review queue (#388 E5): "this Patreon post announced
// that Discord drop". A wrongly-asserted link tells the operator two different
// pieces are one, which is worse than no link at all — so what reaches this
// queue is everything FC is NOT sure enough about to act on by itself.
//
// A pair the creator's own working name identifies, where that name is on
// these two posts and nowhere else in their library, is linked without asking
// (`auto`). Mirrors seriesSuggestions (FC-6.3) in shape.
export const usePostAssociationsStore = defineStore('postAssociations', () => {
  const api = useApi()
  const proposals = ref([])
  const enabled = ref(true)
  const auto = ref(true)
  const threshold = ref(0.6)
  const windowHours = ref(24)
  // #4402 — what a link shows once made. See PostAssociationsCard.
  const foldHours = ref(24)
  const familyDays = ref(60)
  const { loading, error, run } = useAsyncAction({ errorAs: 'message' })

  async function load () {
    await run(async () => {
      const body = await api.get('/api/posts/associations')
      proposals.value = body.items || []
    })
  }

  async function loadSettings () {
    const s = await api.get('/api/settings/import')
    enabled.value = s.discord_link_enabled
    auto.value = s.discord_link_auto
    threshold.value = s.discord_link_threshold
    windowHours.value = s.discord_link_window_hours
    foldHours.value = s.discord_link_fold_hours
    familyDays.value = s.discord_family_window_days
  }

  async function saveSettings (patch) {
    await api.patch('/api/settings/import', { body: patch })
  }

  async function setEnabled (v) {
    enabled.value = v
    await saveSettings({ discord_link_enabled: v })
  }

  async function setAuto (v) {
    auto.value = v
    await saveSettings({ discord_link_auto: v })
  }

  async function setThreshold (v) {
    threshold.value = v
    await saveSettings({ discord_link_threshold: v })
  }

  async function setWindowHours (v) {
    windowHours.value = v
    await saveSettings({ discord_link_window_hours: v })
  }

  async function setFoldHours (v) {
    foldHours.value = v
    await saveSettings({ discord_link_fold_hours: v })
  }

  async function setFamilyDays (v) {
    familyDays.value = v
    await saveSettings({ discord_family_window_days: v })
  }

  async function accept (id) {
    try {
      await api.post(`/api/posts/associations/${id}/accept`, {})
      proposals.value = proposals.value.filter(p => p.id !== id)
      toast({ text: 'Linked', type: 'success' })
    } catch (e) {
      toast({ text: `Link failed: ${e.message}`, type: 'error' })
    }
  }

  async function dismiss (id) {
    try {
      await api.post(`/api/posts/associations/${id}/dismiss`, {})
      proposals.value = proposals.value.filter(p => p.id !== id)
    } catch (e) {
      toast({ text: `Dismiss failed: ${e.message}`, type: 'error' })
    }
  }

  async function rescan () {
    await api.post('/api/posts/associations/rescan', {})
    await load()
  }

  return {
    proposals, enabled, auto, threshold, windowHours, foldHours, familyDays,
    loading, error,
    load, loadSettings, setEnabled, setAuto, setThreshold, setWindowHours,
    setFoldHours, setFamilyDays, accept, dismiss, rescan
  }
})