import { useState } from "react";
import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
import { apiRequest } from "@/lib/queryClient";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { useToast } from "@/hooks/use-toast";
import { DeleteConfirmationDialog } from "@/components/ui/deleteDialog";
import { Plus, Pencil, Trash2, X, Check } from "lucide-react";
const EMPTY_FORM = { name: "", phoneNumber: "" };
export function InsuranceContactCard() {
    const { toast } = useToast();
    const queryClient = useQueryClient();
    const [showForm, setShowForm] = useState(false);
    const [editingId, setEditingId] = useState(null);
    const [form, setForm] = useState(EMPTY_FORM);
    const [deleteTarget, setDeleteTarget] = useState(null);
    const { data: contacts = [], isLoading } = useQuery({
        queryKey: ["/api/insurance-contacts"],
        queryFn: async () => {
            const res = await apiRequest("GET", "/api/insurance-contacts");
            if (!res.ok)
                throw new Error("Failed to fetch");
            return res.json();
        },
    });
    const invalidate = () => queryClient.invalidateQueries({ queryKey: ["/api/insurance-contacts"] });
    const createMutation = useMutation({
        mutationFn: async (data) => {
            const res = await apiRequest("POST", "/api/insurance-contacts", data);
            if (!res.ok) {
                const e = await res.json().catch(() => null);
                throw new Error(e?.message || "Failed to save");
            }
            return res.json();
        },
        onSuccess: () => {
            invalidate();
            setShowForm(false);
            setForm(EMPTY_FORM);
            toast({ title: "Insurance contact added" });
        },
        onError: (e) => toast({ title: "Error", description: e.message, variant: "destructive" }),
    });
    const updateMutation = useMutation({
        mutationFn: async ({ id, data }) => {
            const res = await apiRequest("PUT", `/api/insurance-contacts/${id}`, data);
            if (!res.ok) {
                const e = await res.json().catch(() => null);
                throw new Error(e?.message || "Failed to update");
            }
            return res.json();
        },
        onSuccess: () => {
            invalidate();
            setEditingId(null);
            setForm(EMPTY_FORM);
            toast({ title: "Insurance contact updated" });
        },
        onError: (e) => toast({ title: "Error", description: e.message, variant: "destructive" }),
    });
    const deleteMutation = useMutation({
        mutationFn: async (id) => {
            const res = await apiRequest("DELETE", `/api/insurance-contacts/${id}`);
            if (!res.ok)
                throw new Error("Failed to delete");
        },
        onSuccess: () => {
            invalidate();
            setDeleteTarget(null);
            toast({ title: "Insurance contact deleted" });
        },
        onError: (e) => toast({ title: "Error", description: e.message, variant: "destructive" }),
    });
    const openAdd = () => {
        setEditingId(null);
        setForm(EMPTY_FORM);
        setShowForm(true);
    };
    const openEdit = (c) => {
        setShowForm(false);
        setEditingId(c.id);
        setForm({ name: c.name, phoneNumber: c.phoneNumber ?? "" });
    };
    const cancelEdit = () => { setEditingId(null); setForm(EMPTY_FORM); };
    const cancelAdd = () => { setShowForm(false); setForm(EMPTY_FORM); };
    const handleSave = () => {
        if (!form.name.trim()) {
            toast({ title: "Name is required", variant: "destructive" });
            return;
        }
        if (editingId !== null) {
            updateMutation.mutate({ id: editingId, data: form });
        }
        else {
            createMutation.mutate(form);
        }
    };
    const isSaving = createMutation.isPending || updateMutation.isPending;
    return (<div className="bg-white shadow rounded-lg overflow-hidden">
      {/* Header */}
      <div className="flex justify-between items-center p-4 border-b border-gray-200">
        <div>
          <h2 className="text-lg font-semibold text-gray-900">Insurance Contacts</h2>
          <p className="text-sm text-gray-500 mt-0.5">Phone numbers for insurance companies</p>
        </div>
        <Button onClick={openAdd} size="sm">
          <Plus className="h-4 w-4 mr-1"/> Add Contact
        </Button>
      </div>

      {/* Add form */}
      {showForm && (<div className="p-4 border-b bg-gray-50">
          <p className="text-sm font-medium text-gray-700 mb-3">New Insurance Contact</p>
          <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
            <div>
              <label className="block text-xs font-medium text-gray-600 mb-1">Company Name *</label>
              <Input placeholder="e.g. Delta MA" value={form.name} onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))} className="h-9 text-sm"/>
            </div>
            <div>
              <label className="block text-xs font-medium text-gray-600 mb-1">Phone Number</label>
              <Input placeholder="e.g. (800) 555-0100" value={form.phoneNumber} onChange={(e) => setForm((f) => ({ ...f, phoneNumber: e.target.value }))} className="h-9 text-sm"/>
            </div>
          </div>
          <div className="flex gap-2 mt-3">
            <Button size="sm" onClick={handleSave} disabled={isSaving}>
              <Check className="h-3.5 w-3.5 mr-1"/>
              {isSaving ? "Saving..." : "Save"}
            </Button>
            <Button size="sm" variant="outline" onClick={cancelAdd} disabled={isSaving}>
              <X className="h-3.5 w-3.5 mr-1"/> Cancel
            </Button>
          </div>
        </div>)}

      {/* Table */}
      <div className="overflow-x-auto">
        <table className="min-w-full divide-y divide-gray-200">
          <thead className="bg-gray-50">
            <tr>
              <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                Insurance Company
              </th>
              <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                Phone Number
              </th>
              <th className="px-4 py-3 w-24"/>
            </tr>
          </thead>
          <tbody className="bg-white divide-y divide-gray-200">
            {isLoading ? (<tr>
                <td colSpan={3} className="text-center py-6 text-sm text-gray-400">
                  Loading...
                </td>
              </tr>) : contacts.length === 0 ? (<tr>
                <td colSpan={3} className="text-center py-10 text-sm text-gray-400">
                  No insurance contacts yet. Click "Add Contact" to add one.
                </td>
              </tr>) : (contacts.map((c) => editingId === c.id ? (
        /* Inline edit row */
        <tr key={c.id} className="bg-blue-50">
                    <td className="px-4 py-2">
                      <Input value={form.name} onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))} className="h-8 text-sm" placeholder="Company name"/>
                    </td>
                    <td className="px-4 py-2">
                      <Input value={form.phoneNumber} onChange={(e) => setForm((f) => ({ ...f, phoneNumber: e.target.value }))} className="h-8 text-sm" placeholder="Phone number"/>
                    </td>
                    <td className="px-4 py-2 text-right">
                      <Button variant="ghost" size="sm" onClick={handleSave} disabled={isSaving} className="text-green-600 hover:text-green-700">
                        <Check className="h-4 w-4"/>
                      </Button>
                      <Button variant="ghost" size="sm" onClick={cancelEdit} disabled={isSaving}>
                        <X className="h-4 w-4"/>
                      </Button>
                    </td>
                  </tr>) : (
        /* Display row */
        <tr key={c.id} className="hover:bg-gray-50">
                    <td className="px-4 py-3 text-sm font-medium text-gray-900">{c.name}</td>
                    <td className="px-4 py-3 text-sm text-gray-600">
                      {c.phoneNumber || <span className="text-gray-300">—</span>}
                    </td>
                    <td className="px-4 py-3 text-right">
                      <Button variant="ghost" size="sm" onClick={() => openEdit(c)}>
                        <Pencil className="h-4 w-4 text-gray-500"/>
                      </Button>
                      <Button variant="ghost" size="sm" onClick={() => setDeleteTarget(c)}>
                        <Trash2 className="h-4 w-4 text-red-500"/>
                      </Button>
                    </td>
                  </tr>)))}
          </tbody>
        </table>
      </div>

      <DeleteConfirmationDialog isOpen={!!deleteTarget} onConfirm={() => deleteTarget && deleteMutation.mutate(deleteTarget.id)} onCancel={() => setDeleteTarget(null)} entityName={deleteTarget?.name}/>
    </div>);
}
