"use client";

import { zodResolver } from "@hookform/resolvers/zod";
import { useForm } from "react-hook-form";
import { Button } from "@/components/ui/button";
import {
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form";
import { Input } from "@/components/ui/input";
import { ChangePasswordSchema, type ChangePasswordInput } from "@/lib/schemas";
import { changePassword } from "@/lib/actions/user";
import { useToast } from "@/hooks/use-toast";
import { useState } from "react";
import { Loader2, KeyRound } from "lucide-react";

export function ChangePasswordForm() {
  const { toast } = useToast();
  const [isLoading, setIsLoading] = useState(false);

  const form = useForm<ChangePasswordInput>({
    resolver: zodResolver(ChangePasswordSchema),
    defaultValues: {
      currentPassword: "",
      newPassword: "",
      confirmNewPassword: "",
    },
  });

  async function onSubmit(values: ChangePasswordInput) {
    setIsLoading(true);
    try {
      const result = await changePassword(values);
      toast({
        title: result.success ? "Success" : "Error",
        description: result.message,
        variant: result.success ? "default" : "destructive",
      });
      if (result.success) {
        form.reset();
      }
    } catch (error) {
      toast({ title: "Error", description: "An unexpected error occurred.", variant: "destructive" });
    } finally {
      setIsLoading(false);
    }
  }

  return (
    <Form {...form}>
      <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-6">
        <FormField
          control={form.control}
          name="currentPassword"
          render={({ field }) => (
            <FormItem>
              <FormLabel>Current Password</FormLabel>
              <FormControl>
                <Input type="password" placeholder="••••••••" {...field} />
              </FormControl>
              <FormMessage />
            </FormItem>
          )}
        />
        <FormField
          control={form.control}
          name="newPassword"
          render={({ field }) => (
            <FormItem>
              <FormLabel>New Password</FormLabel>
              <FormControl>
                <Input type="password" placeholder="••••••••" {...field} />
              </FormControl>
              <FormMessage />
            </FormItem>
          )}
        />
        <FormField
          control={form.control}
          name="confirmNewPassword"
          render={({ field }) => (
            <FormItem>
              <FormLabel>Confirm New Password</FormLabel>
              <FormControl>
                <Input type="password" placeholder="••••••••" {...field} />
              </FormControl>
              <FormMessage />
            </FormItem>
          )}
        />
        <Button type="submit" disabled={isLoading}>
          {isLoading ? <Loader2 className="mr-2 h-4 w-4 animate-spin" /> : <KeyRound className="mr-2 h-4 w-4" />}
          Change Password
        </Button>
      </form>
    </Form>
  );
}