"use client"

import { useState } from "react"
import { useRouter } from "next/navigation"

import {
  deleteInvitationMemberAction,
  updateInvitationMemberAction,
} from "@/app/admin/guests/[id]/actions"
import {
  AlertDialog,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogTitle,
  AlertDialogTrigger,
} from "@/components/ui/alert-dialog"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"

interface MemberManagementProps {
  invitationId: string
  memberId: string
  memberName: string
  canDelete: boolean
}

function SubmitButton({ children, variant = "default", pending }: { children: React.ReactNode; variant?: "default" | "destructive"; pending: boolean }) {
  return (
    <Button type="submit" variant={variant} disabled={pending}>
      {pending ? "Saving..." : children}
    </Button>
  )
}

export function MemberManagement({
  invitationId,
  memberId,
  memberName,
  canDelete,
}: MemberManagementProps) {
  const router = useRouter()
  const [editOpen, setEditOpen] = useState(false)
  const [deleteOpen, setDeleteOpen] = useState(false)
  const [name, setName] = useState(memberName)
  const [editError, setEditError] = useState<string | null>(null)
  const [deleteError, setDeleteError] = useState<string | null>(null)
  const [pendingAction, setPendingAction] = useState<"edit" | "delete" | null>(null)

  async function submitEdit(event: React.FormEvent<HTMLFormElement>) {
    event.preventDefault()
    setPendingAction("edit")
    setEditError(null)
    const result = await updateInvitationMemberAction({ error: null, success: false }, new FormData(event.currentTarget))
    setPendingAction(null)
    if (result.error) {
      setEditError(result.error)
      return
    }
    setEditOpen(false)
    router.refresh()
  }

  async function submitDelete(event: React.FormEvent<HTMLFormElement>) {
    event.preventDefault()
    setPendingAction("delete")
    setDeleteError(null)
    const result = await deleteInvitationMemberAction({ error: null, success: false }, new FormData(event.currentTarget))
    setPendingAction(null)
    if (result.error) {
      setDeleteError(result.error)
      return
    }
    setDeleteOpen(false)
    router.refresh()
  }

  return (
    <div className="flex flex-wrap gap-2">
      <AlertDialog open={editOpen} onOpenChange={setEditOpen}>
        <AlertDialogTrigger asChild>
          <Button type="button" size="sm" variant="outline">Edit</Button>
        </AlertDialogTrigger>
        <AlertDialogContent>
          <form onSubmit={submitEdit} className="space-y-4">
            <input type="hidden" name="invitationId" value={invitationId} />
            <input type="hidden" name="memberId" value={memberId} />
            <AlertDialogHeader>
              <AlertDialogTitle>Edit guest member</AlertDialogTitle>
              <AlertDialogDescription>Update the member&apos;s name.</AlertDialogDescription>
            </AlertDialogHeader>
            <Input
              name="name"
              value={name}
              onChange={(event) => setName(event.target.value)}
              aria-label="Member name"
              autoFocus
              maxLength={200}
              required
            />
            {editError ? <p className="text-sm text-destructive">{editError}</p> : null}
            <AlertDialogFooter>
              <AlertDialogCancel type="button">Cancel</AlertDialogCancel>
              <SubmitButton pending={pendingAction === "edit"}>Save changes</SubmitButton>
            </AlertDialogFooter>
          </form>
        </AlertDialogContent>
      </AlertDialog>

      {canDelete ? (
        <AlertDialog open={deleteOpen} onOpenChange={setDeleteOpen}>
          <AlertDialogTrigger asChild>
            <Button type="button" size="sm" variant="destructive">Delete</Button>
          </AlertDialogTrigger>
          <AlertDialogContent>
            <form onSubmit={submitDelete} className="space-y-4">
              <input type="hidden" name="invitationId" value={invitationId} />
              <input type="hidden" name="memberId" value={memberId} />
              <AlertDialogHeader>
                <AlertDialogTitle>Delete {memberName}?</AlertDialogTitle>
                <AlertDialogDescription>
                  This removes the member from the invitation. If they are the primary contact,
                  another member will become primary.
                </AlertDialogDescription>
              </AlertDialogHeader>
              {deleteError ? <p className="text-sm text-destructive">{deleteError}</p> : null}
              <AlertDialogFooter>
                <AlertDialogCancel type="button">Cancel</AlertDialogCancel>
                <SubmitButton variant="destructive" pending={pendingAction === "delete"}>Delete member</SubmitButton>
              </AlertDialogFooter>
            </form>
          </AlertDialogContent>
        </AlertDialog>
      ) : null}
    </div>
  )
}