"use client";

import { useState } from "react";
import { useAuth } from "@/lib/auth-context";
import { useRouter } from "next/navigation";
import Link from "next/link";
import type { AxiosError } from "axios";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Card, CardContent, CardFooter } from "@/components/ui/card";
import { Separator } from "@/components/ui/separator";

export default function RegisterPage() {
  const { register } = useAuth();
  const router = useRouter();
  const [formData, setFormData] = useState({
    name: "",
    email: "",
    password: "",
    password_confirmation: "",
    phone: "",
    country_of_residence: "",
    city: "",
  });
  const [errors, setErrors] = useState<Record<string, string[]>>({});
  const [generalError, setGeneralError] = useState("");
  const [isLoading, setIsLoading] = useState(false);

  const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    setFormData((prev) => ({ ...prev, [e.target.name]: e.target.value }));
    if (errors[e.target.name]) {
      setErrors((prev) => {
        const next = { ...prev };
        delete next[e.target.name];
        return next;
      });
    }
  };

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setErrors({});
    setGeneralError("");
    setIsLoading(true);

    try {
      await register(formData);
      router.push("/dashboard");
    } catch (err) {
      const axiosError = err as AxiosError<{
        message?: string;
        errors?: Record<string, string[]>;
      }>;
      if (axiosError.response?.data?.errors) {
        setErrors(axiosError.response.data.errors);
      } else if (axiosError.response?.data?.message) {
        setGeneralError(axiosError.response.data.message);
      } else {
        setGeneralError("An error occurred. Please try again.");
      }
    } finally {
      setIsLoading(false);
    }
  };

  return (
    <div className="flex min-h-full flex-1 items-center justify-center bg-background px-4 py-12">
      <div className="w-full max-w-md">
        {/* Logo */}
        <div className="mb-8 text-center">
          <Link href="/" className="inline-flex items-center gap-2">
            <div className="flex h-10 w-10 items-center justify-center rounded-lg bg-primary">
              <span className="font-display text-base text-primary-foreground">
                DP
              </span>
            </div>
          </Link>
          <h1 className="mt-4 font-display text-2xl text-foreground">
            Create your account
          </h1>
          <p className="mt-1 text-sm text-muted-foreground">
            Join thousands of Kenyans investing in property from abroad
          </p>
        </div>

        <Card>
          <CardContent className="pt-6">
            {generalError && (
              <div className="mb-4 rounded-lg border border-destructive/20 bg-destructive/5 px-4 py-3 text-sm text-destructive">
                {generalError}
              </div>
            )}

            <form onSubmit={handleSubmit} className="space-y-4">
              <div className="space-y-2">
                <Label htmlFor="name">Full Name</Label>
                <Input
                  id="name"
                  name="name"
                  type="text"
                  required
                  placeholder="John Kamau"
                  value={formData.name}
                  onChange={handleChange}
                />
                {errors.name && (
                  <p className="text-xs text-destructive">{errors.name[0]}</p>
                )}
              </div>

              <div className="space-y-2">
                <Label htmlFor="email">Email Address</Label>
                <Input
                  id="email"
                  name="email"
                  type="email"
                  required
                  autoComplete="email"
                  placeholder="you@example.com"
                  value={formData.email}
                  onChange={handleChange}
                />
                {errors.email && (
                  <p className="text-xs text-destructive">{errors.email[0]}</p>
                )}
              </div>

              <div className="grid grid-cols-1 gap-4 sm:grid-cols-2">
                <div className="space-y-2">
                  <Label htmlFor="password">Password</Label>
                  <Input
                    id="password"
                    name="password"
                    type="password"
                    required
                    autoComplete="new-password"
                    placeholder="••••••••"
                    value={formData.password}
                    onChange={handleChange}
                  />
                  {errors.password && (
                    <p className="text-xs text-destructive">
                      {errors.password[0]}
                    </p>
                  )}
                </div>

                <div className="space-y-2">
                  <Label htmlFor="password_confirmation">Confirm</Label>
                  <Input
                    id="password_confirmation"
                    name="password_confirmation"
                    type="password"
                    required
                    autoComplete="new-password"
                    placeholder="••••••••"
                    value={formData.password_confirmation}
                    onChange={handleChange}
                  />
                </div>
              </div>

              <div className="space-y-2">
                <Label htmlFor="phone">Phone Number</Label>
                <Input
                  id="phone"
                  name="phone"
                  type="tel"
                  placeholder="+254 7XX XXX XXX"
                  value={formData.phone}
                  onChange={handleChange}
                />
              </div>

              <div className="grid grid-cols-1 gap-4 sm:grid-cols-2">
                <div className="space-y-2">
                  <Label htmlFor="country_of_residence">Country</Label>
                  <Input
                    id="country_of_residence"
                    name="country_of_residence"
                    type="text"
                    placeholder="e.g. United Kingdom"
                    value={formData.country_of_residence}
                    onChange={handleChange}
                  />
                </div>

                <div className="space-y-2">
                  <Label htmlFor="city">City</Label>
                  <Input
                    id="city"
                    name="city"
                    type="text"
                    placeholder="e.g. London"
                    value={formData.city}
                    onChange={handleChange}
                  />
                </div>
              </div>

              <Button
                type="submit"
                disabled={isLoading}
                className="w-full"
                size="lg"
              >
                {isLoading ? "Creating account..." : "Create account"}
              </Button>
            </form>

            <div className="relative my-6">
              <Separator />
              <span className="absolute left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2 bg-card px-3 text-xs text-muted-foreground">
                or sign up with
              </span>
            </div>

            <div className="grid grid-cols-2 gap-3">
              <Button variant="outline" asChild className="w-full">
                <a
                  href={`${process.env.NEXT_PUBLIC_API_URL}/api/auth/google/redirect`}
                >
                  <svg className="mr-2 h-4 w-4" viewBox="0 0 24 24">
                    <path
                      d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"
                      fill="#4285F4"
                    />
                    <path
                      d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"
                      fill="#34A853"
                    />
                    <path
                      d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"
                      fill="#FBBC05"
                    />
                    <path
                      d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"
                      fill="#EA4335"
                    />
                  </svg>
                  Google
                </a>
              </Button>
              <Button variant="outline" asChild className="w-full">
                <a
                  href={`${process.env.NEXT_PUBLIC_API_URL}/api/auth/facebook/redirect`}
                >
                  <svg
                    className="mr-2 h-4 w-4 text-[#1877F2]"
                    fill="currentColor"
                    viewBox="0 0 24 24"
                  >
                    <path d="M24 12.073c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.99 4.388 10.954 10.125 11.854v-8.385H7.078v-3.47h3.047V9.43c0-3.007 1.792-4.669 4.533-4.669 1.312 0 2.686.235 2.686.235v2.953H15.83c-1.491 0-1.956.925-1.956 1.874v2.25h3.328l-.532 3.47h-2.796v8.385C19.612 23.027 24 18.062 24 12.073z" />
                  </svg>
                  Facebook
                </a>
              </Button>
            </div>
          </CardContent>
          <CardFooter className="justify-center border-t border-border py-4">
            <p className="text-sm text-muted-foreground">
              Already have an account?{" "}
              <Link
                href="/login"
                className="font-medium text-primary hover:text-primary/80"
              >
                Sign in
              </Link>
            </p>
          </CardFooter>
        </Card>
      </div>
    </div>
  );
}