import type { Ref } from 'vue'
import type { Router } from 'vue-router'
import type { Profile } from '@yuxingu/types'
import { api } from '../api/client'
import { copyText } from '../lib/shareLink'

export const profileRelationOptions = [
  { value: 'family', label: '家人' },
  { value: 'friend', label: '朋友' },
  { value: 'partner', label: '伴侣' },
  { value: 'colleague', label: '同事' },
  { value: 'other', label: '其他' },
]

export function formatProfileDate(v: string) {
  return (v || '').slice(0, 10)
}

export function avatarInitial(p: Profile) {
  const n = p.display_name || (p.relation === 'self' ? '我' : 'T')
  return n.slice(0, 1)
}

export function relationLabel(t?: string | null) {
  const map: Record<string, string> = {
    partner: '伴侣',
    friend: '朋友',
    family: '家人',
    colleague: '同事',
    other: '关系对象',
  }
  return map[t || ''] || '关系对象'
}

export function splitBirth(v: string) {
  const s = formatProfileDate(v)
  const [y, m, d] = s.split('-')
  return { y: y || '', m: m ? String(Number(m)) : '', d: d ? String(Number(d)) : '' }
}

export function joinBirth(y: string, m: string, d: string) {
  const yi = Number(y)
  const mi = Number(m)
  const di = Number(d)
  if (!yi || !mi || !di) return ''
  return `${yi}-${String(mi).padStart(2, '0')}-${String(di).padStart(2, '0')}`
}

export type ProfilePageActionRefs = {
  items: Ref<Profile[]>
  loading: Ref<boolean>
  error: Ref<string>
  busyId: Ref<string>
  editing: Ref<Profile | null>
  showAddForm: Ref<boolean>
  showInviteFill: Ref<boolean>
  formName: Ref<string>
  formY: Ref<string>
  formM: Ref<string>
  formD: Ref<string>
  formPlace: Ref<string>
  formRelationType: Ref<string>
  formGeoVisible: Ref<boolean>
  formError: Ref<string>
  saving: Ref<boolean>
  newName: Ref<string>
  newY: Ref<string>
  newM: Ref<string>
  newD: Ref<string>
  newPlace: Ref<string>
  newRelationType: Ref<string>
  addError: Ref<string>
  adding: Ref<boolean>
  inviting: Ref<boolean>
  invitePath: Ref<string>
  inviteError: Ref<string>
  inviteHint: Ref<string>
  copyBusy: Ref<boolean>
  selfProfile: { value: Profile | undefined }
  routeAdd: () => string | undefined
  routeInviteFill: () => string | undefined
  router: Router
}

export function createProfilePageActions(r: ProfilePageActionRefs) {
  function toggleAdd() {
    r.showAddForm.value = !r.showAddForm.value
    if (r.showAddForm.value) {
      r.editing.value = null
      r.showInviteFill.value = false
    }
  }

  function openAddForm() {
    r.showAddForm.value = true
    r.showInviteFill.value = false
    r.editing.value = null
  }

  function openInviteFill() {
    r.showInviteFill.value = true
    r.showAddForm.value = false
    r.editing.value = null
    r.inviteError.value = ''
    if (!r.selfProfile.value) {
      r.inviteHint.value = '请先完成自己的档案，再邀请好友填写。'
    } else {
      r.inviteHint.value = ''
    }
  }

  function closeInviteFill() {
    r.showInviteFill.value = false
    void r.router.replace({ path: '/profile', query: {} })
  }

  function applyQueryFlags() {
    if (r.routeAdd() === '1') openAddForm()
    if (r.routeInviteFill() === '1') openInviteFill()
  }

  async function createFillInvite() {
    if (!r.selfProfile.value) {
      r.inviteError.value = '请先完成自己的档案'
      return
    }
    r.inviting.value = true
    r.inviteError.value = ''
    r.inviteHint.value = ''
    try {
      const res = await api.createSynastryInvite(r.selfProfile.value.id)
      r.invitePath.value = `${location.origin}${res.path}`
      r.inviteHint.value = '好友打开链接后填写生日即可；也可用于合盘。'
    } catch (e) {
      r.inviteError.value = e instanceof Error ? e.message : '生成失败'
    } finally {
      r.inviting.value = false
    }
  }

  async function copyInvite() {
    if (!r.invitePath.value) return
    r.copyBusy.value = true
    const ok = await copyText(r.invitePath.value)
    r.inviteHint.value = ok ? '链接已复制，发给家人或朋友即可。' : '复制失败，请长按链接手动复制。'
    r.copyBusy.value = false
  }

  async function load() {
    r.loading.value = true
    r.error.value = ''
    try {
      const res = await api.listProfiles()
      r.items.value = res.items || []
    } catch (e) {
      r.error.value = e instanceof Error ? e.message : '加载失败'
    } finally {
      r.loading.value = false
    }
  }

  function startEdit(p: Profile) {
    r.editing.value = p
    r.showAddForm.value = false
    r.formName.value = p.display_name || ''
    const b = splitBirth(p.birth_date)
    r.formY.value = b.y
    r.formM.value = b.m
    r.formD.value = b.d
    r.formPlace.value = p.birth_place || ''
    r.formRelationType.value = p.relation_type || 'partner'
    r.formGeoVisible.value = !!p.geo_visible
    r.formError.value = ''
  }

  async function saveEdit() {
    if (!r.editing.value) return
    r.saving.value = true
    r.formError.value = ''
    try {
      const birth = joinBirth(r.formY.value, r.formM.value, r.formD.value)
      if (!birth) throw new Error('请填写生日')
      const body: {
        display_name: string
        birth_date: string
        relation_type?: string
        birth_place?: string
        geo_visible?: boolean
      } = {
        display_name: r.formName.value.trim(),
        birth_date: birth,
        birth_place: r.formPlace.value || '',
      }
      if (r.editing.value.relation === 'other') body.relation_type = r.formRelationType.value
      if (r.editing.value.relation === 'self') body.geo_visible = r.formGeoVisible.value
      await api.updateProfile(r.editing.value.id, body)
      r.editing.value = null
      await load()
    } catch (e) {
      r.formError.value = e instanceof Error ? e.message : '保存失败'
    } finally {
      r.saving.value = false
    }
  }

  async function remove(p: Profile) {
    if (!confirm(`确定删除「${p.display_name || '档案'}」？`)) return
    r.busyId.value = p.id
    r.error.value = ''
    try {
      await api.deleteProfile(p.id)
      if (r.editing.value?.id === p.id) r.editing.value = null
      await load()
    } catch (e) {
      r.error.value = e instanceof Error ? e.message : '删除失败'
    } finally {
      r.busyId.value = ''
    }
  }

  async function addOther() {
    r.adding.value = true
    r.addError.value = ''
    try {
      const birth = joinBirth(r.newY.value, r.newM.value, r.newD.value)
      if (!birth) throw new Error('请填写生日')
      await api.createProfile({
        relation: 'other',
        birth_date: birth,
        display_name: r.newName.value.trim() || 'TA',
        relation_type: r.newRelationType.value,
        birth_place: r.newPlace.value || undefined,
      })
      r.newName.value = ''
      r.newY.value = ''
      r.newM.value = ''
      r.newD.value = ''
      r.newPlace.value = ''
      r.showAddForm.value = false
      await load()
      if (r.routeAdd() === '1') void r.router.replace({ path: '/profile', query: {} })
    } catch (e) {
      r.addError.value = e instanceof Error ? e.message : '添加失败'
    } finally {
      r.adding.value = false
    }
  }

  return {
    toggleAdd,
    openAddForm,
    openInviteFill,
    closeInviteFill,
    applyQueryFlags,
    createFillInvite,
    copyInvite,
    load,
    startEdit,
    saveEdit,
    remove,
    addOther,
  }
}