<script>
	import { goto } from '$app/navigation';
	import { userSignIn, userSignUp } from '$lib/apis/auths';
	import Spinner from '$lib/components/common/Spinner.svelte';
	import { WEBUI_API_BASE_URL, WEBUI_BASE_URL } from '$lib/constants';
	import { WEBUI_NAME, config, user, socket } from '$lib/stores';
	import { onMount, getContext } from 'svelte';
	import { toast } from 'svelte-sonner';
	import { generateInitialsImage, canvasPixelTest } from '$lib/utils';

	const i18n = getContext('i18n');

	let loaded = false;
	let mode = 'signin';

	let name = '';
	let email = '';
	let password = '';

	const setSessionUser = async (sessionUser) => {
		if (sessionUser) {
			console.log(sessionUser);
			toast.success($i18n.t(`You're now logged in.`));
			localStorage.token = sessionUser.token;

			$socket.emit('user-join', { auth: { token: sessionUser.token } });
			await user.set(sessionUser);
			goto('/');
		}
	};

	const signInHandler = async () => {
		const sessionUser = await userSignIn(email, password).catch((error) => {
			toast.error(error);
			return null;
		});

		await setSessionUser(sessionUser);
	};

	const signUpHandler = async () => {
		const sessionUser = await userSignUp(name, email, password, generateInitialsImage(name)).catch(
			(error) => {
				toast.error(error);
				return null;
			}
		);

		await setSessionUser(sessionUser);
	};

	const submitHandler = async () => {
		if (mode === 'signin') {
			await signInHandler();
		} else {
			await signUpHandler();
		}
	};

	onMount(async () => {
		if ($user !== undefined) {
			await goto('/');
		}
		loaded = true;
		if (($config?.features.auth_trusted_header ?? false) || $config?.features.auth === false) {
			await signInHandler();
		}
	});
</script>

<svelte:head>
	<title>
		{`${$WEBUI_NAME}`}
	</title>
</svelte:head>

{#if loaded}
	<div class="fixed m-10 z-50">
		<div class="flex space-x-2">
			<div class=" self-center">
				<img
					crossorigin="anonymous"
					src="{WEBUI_BASE_URL}/static/favicon.png"
					class=" w-8 rounded-full"
					alt="logo"
				/>
			</div>
		</div>
	</div>

	<div class=" bg-white dark:bg-gray-950 min-h-screen w-full flex justify-center font-mona">
		<!-- <div class="hidden lg:flex lg:flex-1 px-10 md:px-16 w-full bg-yellow-50 justify-center">
			<div class=" my-auto pb-16 text-left">
				<div>
					<div class=" font-bold text-yellow-600 text-4xl">
						Get up and running with <br />large language models, locally.
					</div>

					<div class="mt-2 text-yellow-600 text-xl">
						Run Llama 2, Code Llama, and other models. Customize and create your own.
					</div>
				</div>
			</div>
		</div> -->

		<div class="w-full sm:max-w-md px-10 min-h-screen flex flex-col text-center">
			{#if ($config?.features.auth_trusted_header ?? false) || $config?.features.auth === false}
				<div class=" my-auto pb-10 w-full">
					<div
						class="flex items-center justify-center gap-3 text-xl sm:text-2xl text-center font-bold dark:text-gray-200"
					>
						<div>
							{$i18n.t('Signing in')}
							{$i18n.t('to')}
							{$WEBUI_NAME}
						</div>

						<div>
							<Spinner />
						</div>
					</div>
				</div>
			{:else}
				<div class="  my-auto pb-10 w-full dark:text-gray-100">
					<form
						class=" flex flex-col justify-center"
						on:submit|preventDefault={() => {
							submitHandler();
						}}
					>
						<div class="mb-1">
							<div class=" text-2xl font-bold">
								{mode === 'signin' ? $i18n.t('Sign in') : $i18n.t('Sign up')}
								{$i18n.t('to')}
								{$WEBUI_NAME}
							</div>

							{#if mode === 'signup'}
								<div class=" mt-1 text-xs font-medium text-gray-500">
									ⓘ {$WEBUI_NAME}
									{$i18n.t(
										'does not make any external connections, and your data stays securely on your locally hosted server.'
									)}
								</div>
							{/if}
						</div>

						<div class="flex flex-col mt-4">
							{#if mode === 'signup'}
								<div>
									<div class=" text-sm font-semibold text-left mb-1">{$i18n.t('Name')}</div>
									<input
										bind:value={name}
										type="text"
										class=" px-5 py-3 rounded-2xl w-full text-sm outline-none border dark:border-none dark:bg-gray-900"
										autocomplete="name"
										placeholder={$i18n.t('Enter Your Full Name')}
										required
									/>
								</div>

								<hr class=" my-3 dark:border-gray-900" />
							{/if}

							<div class="mb-2">
								<div class=" text-sm font-semibold text-left mb-1">{$i18n.t('Email')}</div>
								<input
									bind:value={email}
									type="email"
									class=" px-5 py-3 rounded-2xl w-full text-sm outline-none border dark:border-none dark:bg-gray-900"
									autocomplete="email"
									placeholder={$i18n.t('Enter Your Email')}
									required
								/>
							</div>

							<div>
								<div class=" text-sm font-semibold text-left mb-1">{$i18n.t('Password')}</div>

								<input
									bind:value={password}
									type="password"
									class=" px-5 py-3 rounded-2xl w-full text-sm outline-none border dark:border-none dark:bg-gray-900"
									placeholder={$i18n.t('Enter Your Password')}
									autocomplete="current-password"
									required
								/>
							</div>
						</div>

						<div class="mt-5">
							<button
								class=" bg-gray-900 hover:bg-gray-800 w-full rounded-2xl text-white font-semibold text-sm py-3 transition"
								type="submit"
							>
								{mode === 'signin' ? $i18n.t('Sign in') : $i18n.t('Create Account')}
							</button>

							{#if $config?.features.enable_signup}
								<div class=" mt-4 text-sm text-center">
									{mode === 'signin'
										? $i18n.t("Don't have an account?")
										: $i18n.t('Already have an account?')}

									<button
										class=" font-medium underline"
										type="button"
										on:click={() => {
											if (mode === 'signin') {
												mode = 'signup';
											} else {
												mode = 'signin';
											}
										}}
									>
										{mode === 'signin' ? $i18n.t('Sign up') : $i18n.t('Sign in')}
									</button>
								</div>
							{/if}
						</div>
					</form>
				</div>
			{/if}
		</div>
	</div>
{/if}

<style>
	.font-mona {
		font-family: 'Mona Sans', -apple-system, 'Arimo', ui-sans-serif, system-ui, 'Segoe UI', Roboto,
			Ubuntu, Cantarell, 'Noto Sans', sans-serif, 'Helvetica Neue', Arial, 'Apple Color Emoji',
			'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
	}
</style>
