import React, { useState } from "react";
import * as Yup from 'yup';
import Link from 'next/link';
import { useRouter } from 'next/router';
import { useAuth } from 'providers/Auth';
import IdentityApi from 'api/identity';
import { useFormik } from 'formik';
import StyledWrapper from './StyledWrapper';

const Login = () => {
  const router = useRouter();
  const [authState, authDispatch] = useAuth();

  const {
    currentUser
  } = authState;

  const [loggingIn, setLoggingIn] = useState(false);
  const [loginError, setLoginError] = useState(false);

  const formik = useFormik({
     initialValues: {
       email: '',
       password: '',
     },
     validationSchema: Yup.object({
        email: Yup.string()
          .required('Email is required'),
        password: Yup.string()
          .required('Password is required')
     }),
     onSubmit: (values, { resetForm }) => {
      setLoggingIn(true);
      IdentityApi
        .login({
          email: values.email,
          password: values.password
        })
        .then((response) => {
          authDispatch({
            type: 'LOGIN_SUCCESS',
            user: response.data
          });
        })
        .catch((error) => {
          setLoggingIn(false);
          setLoginError(true);
        });
     },
  });

  if(authState.isLoading) {
    return null;
  };

  if(currentUser) {
    router.push('/home');
    return null;
  };

  return (
    <StyledWrapper>
      <div className="flex flex-col justify-center cursor-pointer items-center mt-10">
        <div style={{fontSize: '3rem'}}>
          <svg id="emoji" width="50" viewBox="0 0 72 72" xmlns="http://www.w3.org/2000/svg">
            <g id="color">
              <path fill="#F4AA41" stroke="none" d="M23.5,14.5855l-4.5,1.75l-7.25,8.5l-4.5,10.75l2,5.25c1.2554,3.7911,3.5231,7.1832,7.25,10l2.5-3.3333 c0,0,3.8218,7.7098,10.7384,8.9598c0,0,10.2616,1.936,15.5949-0.8765c3.4203-1.8037,4.4167-4.4167,4.4167-4.4167l3.4167-3.4167 l1.5833,2.3333l2.0833-0.0833l5.4167-7.25L64,37.3355l-0.1667-4.5l-2.3333-5.5l-4.8333-7.4167c0,0-2.6667-4.9167-8.1667-3.9167 c0,0-6.5-4.8333-11.8333-4.0833S32.0833,10.6688,23.5,14.5855z"/>
              <polygon fill="#EA5A47" stroke="none" points="36,47.2521 32.9167,49.6688 30.4167,49.6688 30.3333,53.5021 31.0833,57.0021 32.1667,58.9188 35,60.4188 39.5833,59.8355 41.1667,58.0855 42.1667,53.8355 41.9167,49.8355 39.9167,50.0855"/>
              <polygon fill="#3F3F3F" stroke="none" points="32.5,36.9188 30.9167,40.6688 33.0833,41.9188 34.3333,42.4188 38.6667,42.5855 41.5833,40.3355 39.8333,37.0855"/>
            </g>
            <g id="hair"/>
            <g id="skin"/>
            <g id="skin-shadow"/>
            <g id="line">
              <path fill="#000000" stroke="none" d="M29.5059,30.1088c0,0-1.8051,1.2424-2.7484,0.6679c-0.9434-0.5745-1.2424-1.8051-0.6679-2.7484 s1.805-1.2424,2.7484-0.6679S29.5059,30.1088,29.5059,30.1088z"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M33.1089,37.006h6.1457c0.4011,0,0.7634,0.2397,0.9203,0.6089l1.1579,2.7245l-2.1792,1.1456 c-0.6156,0.3236-1.3654-0.0645-1.4567-0.754"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M34.7606,40.763c-0.1132,0.6268-0.7757,0.9895-1.3647,0.7471l-2.3132-0.952l1.0899-2.9035 c0.1465-0.3901,0.5195-0.6486,0.9362-0.6486"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M30.4364,50.0268c0,0-0.7187,8.7934,3.0072,9.9375c2.6459,0.8125,5.1497,0.5324,6.0625-0.25 c0.875-0.75,2.6323-4.4741,1.8267-9.6875"/>
              <path fill="#000000" stroke="none" d="M44.2636,30.1088c0,0,1.805,1.2424,2.7484,0.6679c0.9434-0.5745,1.2424-1.8051,0.6679-2.7484 c-0.5745-0.9434-1.805-1.2424-2.7484-0.6679C43.9881,27.9349,44.2636,30.1088,44.2636,30.1088z"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M25.6245,42.8393c-0.475,3.6024,2.2343,5.7505,4.2847,6.8414c1.1968,0.6367,2.6508,0.5182,3.7176-0.3181l2.581-2.0233l2.581,2.0233 c1.0669,0.8363,2.5209,0.9548,3.7176,0.3181c2.0504-1.0909,4.7597-3.239,4.2847-6.8414"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M19.9509,28.3572c-2.3166,5.1597-0.5084,13.0249,0.119,15.3759c0.122,0.4571,0.0755,0.9355-0.1271,1.3631l-1.9874,4.1937 c-0.623,1.3146-2.3934,1.5533-3.331,0.4409c-3.1921-3.7871-8.5584-11.3899-6.5486-16.686 c7.0625-18.6104,15.8677-18.1429,15.8677-18.1429c2.8453-1.9336,13.1042-6.9375,24.8125,0.875c0,0,8.6323-1.7175,14.9375,16.9375 c1.8036,5.3362-3.4297,12.8668-6.5506,16.6442c-0.9312,1.127-2.7162,0.8939-3.3423-0.4272l-1.9741-4.1656 c-0.2026-0.4275-0.2491-0.906-0.1271-1.3631c0.6275-2.3509,2.4356-10.2161,0.119-15.3759"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M52.6309,46.4628c0,0-3.0781,6.7216-7.8049,8.2712"/>
              <path fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2" d="M19.437,46.969c0,0,3.0781,6.0823,7.8049,7.632"/>
              <line x1="36.2078" x2="36.2078" y1="47.3393" y2="44.3093" fill="none" stroke="#000000" strokeLinecap="round" strokeLinejoin="round" strokeMiterlimit="10" strokeWidth="2"/>
            </g>
          </svg>
        </div>
        <div className="font-semibold" style={{fontSize: '2rem'}}>grafnode</div>
        <div className="mt-1">Opensource API Collection Collaboration</div>
      </div>
      <form onSubmit={formik.handleSubmit}>
        <div className="flex justify-center flex-col form-container mx-auto mt-10 p-5">
          <div className="text-2xl mt-3 mb-5">Login</div>

          <div>
            <label htmlFor="email" className="pb-2 pt-3 block font-semibold">Email</label>
            <input id="email" name="email" type="text"
              className="appearance-none rounded relative block w-full px-3 py-2 border border-gray-300 placeholder-gray-500 text-gray-900 focus:outline-none focus:ring-indigo-500 focus:border-blue-600 focus:z-10 sm:text-sm"
              placeholder="Email"
              onChange={formik.handleChange}
              onFocus={() => setLoginError(false)}
              onBlur={formik.handleBlur}
              value={formik.values.email}
            />
            {formik.touched.email && formik.errors.email ? (
              <div className="field-error error-msg">{formik.errors.email}</div>
            ) : null}
          </div>

          <div>
            <label htmlFor="password" className="pb-2 pt-4 block font-semibold">Password</label>
            <input id="password" name="password" type="password" autoComplete="password"
              className="appearance-none rounded relative block w-full px-3 py-2 border border-gray-300 placeholder-gray-500 text-gray-900 focus:outline-none focus:ring-indigo-500 focus:border-blue-600 focus:z-10 sm:text-sm"
              placeholder="Password"
              onChange={formik.handleChange}
              onFocus={() => setLoginError(false)}
              onBlur={formik.handleBlur}
              value={formik.values.password}
            />
            {formik.touched.password && formik.errors.password ? (
              <div className="field-error error-msg">{formik.errors.password}</div>
            ) : null}
          </div>

          <div className="pt-6">
            { loggingIn ? (
              <button disabled={true} className="continue-btn relative w-full flex justify-center py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
                <div className="dot-elastic"/>
              </button>
            ) : 
              <div className="text-center"> 
                <button type="submit" className="continue-btn mb-4 relative w-full flex justify-center py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
                  Continue
                </button>
              </div>
            }
            {loginError ? (
              <div className="field-error error-msg text-red-500 ml-1 mt-1">Invalid Credentials</div>
            ) : null}
          </div>

          <div className="sign-in-container mt-2">
          </div>
          <div className="mt-2">
            No account? <Link href="/signup">Create one!</Link>
          </div>
        </div>
      </form>
    </StyledWrapper>
  )
};

export default Login;