@extends('layouts.guest')
@section('title')
{{ __('Sign In') }}
@endsection

@section('css')
<style>
html, body {
    min-width: 320px;
    width: 100%;
    height: 100%;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: hidden;
}

.auth-login-page {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding-top: 0 !important;
    --vz-footer-bg: transparent;
    --auth-title-size: clamp(1.125rem, 1rem + 0.35vw, 1.3rem);
    --auth-body-size: 0.9375rem;
    --auth-label-size: 0.875rem;
    --auth-helper-size: 0.8125rem;
}

.auth-login-page {
    background:
        radial-gradient(circle at 12% 20%, rgba(53, 119, 241, 0.18), transparent 36%),
        radial-gradient(circle at 88% 12%, rgba(69, 203, 133, 0.16), transparent 34%),
        linear-gradient(160deg, #f5f9ff 0%, #edf5ff 42%, #eefaf4 100%);
}

.auth-login-page .auth-page-content {
    flex: 1;
    width: 100%;
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: visible;
    padding: clamp(44px, 6vh, 68px) 0;
}

.auth-login-page .auth-page-content > .container-fluid {
    width: 100%;
    max-width: 1440px;
}

.auth-one-bg-position { position: fixed !important; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.auth-page-content, .footer { position: relative; z-index: 1; }
.auth-login-page .auth-brand {
    margin-top: 0 !important;
    margin-bottom: clamp(22px, 3vh, 34px) !important;
}
.auth-login-page .auth-logo img {
    height: clamp(88px, 11vh, 120px) !important;
    max-width: min(120px, 30vw);
    object-fit: contain;
}
.auth-login-page .auth-university-name {
    margin-top: 8px !important;
    margin-bottom: 0;
    font-size: clamp(13px, 1.7vw, 17px) !important;
    line-height: 1.45;
}
.auth-login-page .auth-login-card {
    width: 100%;
    max-width: 430px;
    margin: 0 auto !important;
    border-radius: 18px;
}
.auth-login-page .auth-login-card .card-body {
    padding: clamp(24px, 3vw, 32px) !important;
}
.auth-login-page .auth-login-heading {
    margin: 0;
    font-size: var(--auth-title-size) !important;
    line-height: 1.4;
    font-weight: 700;
}
.auth-login-page .auth-login-subtitle {
    margin: 6px 0 0;
    font-size: var(--auth-body-size) !important;
    line-height: 1.6;
}
.auth-login-page .auth-form-wrap {
    margin-top: clamp(20px, 2.5vh, 26px) !important;
    padding: 0 !important;
}
.auth-login-page .auth-field {
    margin-bottom: 18px;
}
.auth-login-page .form-label {
    margin-bottom: 8px;
    font-size: var(--auth-label-size) !important;
    line-height: 1.5;
}
.auth-login-page .form-control {
    min-height: 46px !important;
    padding: 10px 14px;
    font-size: var(--auth-body-size) !important;
    line-height: 1.5;
    border-radius: 10px;
}
.auth-login-page .form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 22px;
    margin: 0 0 20px !important;
}
.auth-login-page .form-check-input {
    flex: 0 0 auto;
    margin: 0;
}
.auth-login-page .form-check-label {
    font-size: var(--auth-label-size) !important;
    line-height: 1.5;
}
.auth-login-page .invalid-feedback,
.auth-login-page .auth-login-helper {
    margin-top: 6px;
    font-size: var(--auth-helper-size) !important;
    line-height: 1.5;
}
.auth-login-page .auth-password-field {
    position: relative;
}
.auth-login-page .auth-password-field .form-control {
    padding-right: 46px !important;
}
.auth-login-page .auth-password-field .form-control.is-invalid {
    background-image: none;
}
.auth-login-page .password-addon {
    position: absolute;
    top: 1px;
    right: 1px;
    bottom: 1px;
    z-index: 5;
    width: 42px;
    height: auto !important;
    min-height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    transform: none !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--vz-secondary-color) !important;
}
.auth-login-page .password-addon:hover,
.auth-login-page .password-addon:focus,
.auth-login-page .password-addon:active,
.auth-login-page .password-addon:focus-visible {
    color: var(--vz-primary) !important;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    outline: none !important;
}
.auth-login-page .password-addon i {
    font-size: 17px;
    line-height: 1;
}
.auth-login-page .btn[type="submit"] {
    min-height: 46px !important;
    padding: 10px 18px;
    font-size: var(--auth-body-size) !important;
    line-height: 1.5;
    font-weight: 600;
    border-radius: 10px;
}

@media (min-width: 992px) and (min-height: 800px) {
    .auth-login-page .auth-page-content {
        padding: clamp(54px, 6vh, 76px) 0;
    }

    .auth-login-page .auth-brand {
        margin-bottom: clamp(26px, 3vh, 38px) !important;
    }

    .auth-login-page .auth-logo img {
        height: clamp(120px, 14vh, 150px) !important;
        max-width: 150px;
    }

    .auth-login-page .auth-university-name {
        margin-top: 10px !important;
        font-size: clamp(16px, 1.15vw, 20px) !important;
    }

    .auth-login-page .auth-login-card { max-width: 430px; }
}

html body .auth-login-page > footer.footer {
    position: absolute !important;
    inset: auto 0 0 0 !important;
    width: 100%;
    height: auto !important;
    min-height: 0 !important;
    margin: 0 !important;
    background-color: transparent !important;
    background-image: none !important;
    border: 0 !important;
    box-shadow: none !important;
    padding: 10px 0 14px !important;
}
.auth-page-tools {
    position: fixed;
    top: max(14px, env(safe-area-inset-top));
    right: max(14px, env(safe-area-inset-right));
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 8px;
}
.auth-language-dropdown {
    position: relative;
}
.auth-language-button,
.auth-theme-button {
    width: 42px;
    height: 42px;
    border: 1px solid rgba(148, 163, 184, 0.32);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.10);
}
.auth-theme-button {
    color: #64748b;
    font-size: 20px;
}
.auth-language-button:hover,
.auth-language-button:focus,
.auth-theme-button:hover,
.auth-theme-button:focus {
    background: #fff;
    border-color: #a5b4fc;
    color: #4338ca;
}
.auth-theme-button .auth-theme-sun {
    display: none;
}
.auth-language-button img, .auth-language-item img { width: 20px; height: 20px; object-fit: cover; }
.auth-language-menu { min-width: 150px; border-radius: 8px; border-color: #e5e7eb; box-shadow: 0 16px 34px rgba(15, 23, 42, 0.14); }
.auth-language-item { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.auth-language-item.is-active { color: #4338ca; background: #eef2ff; font-weight: 600; }

html[data-bs-theme="dark"] .auth-login-page {
    background:
        radial-gradient(circle at 12% 20%, rgba(79, 70, 229, 0.20), transparent 37%),
        radial-gradient(circle at 88% 12%, rgba(16, 185, 129, 0.12), transparent 35%),
        linear-gradient(160deg, #171c22 0%, #202730 48%, #17241f 100%);
}
html[data-bs-theme="dark"] .auth-login-page .text-white-50,
html[data-bs-theme="dark"] .auth-login-page .auth-university-name {
    color: #d8e0e9 !important;
}
html[data-bs-theme="dark"] .auth-login-page .card {
    background: #29313a !important;
    border-color: #3d4854 !important;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.30);
}
html[data-bs-theme="dark"] .auth-login-page .text-primary {
    color: #a99cf8 !important;
}
html[data-bs-theme="dark"] .auth-login-page .text-muted,
html[data-bs-theme="dark"] .auth-login-page .form-check-label,
html[data-bs-theme="dark"] .auth-login-page .footer p {
    color: #bdc7d2 !important;
}
html[data-bs-theme="dark"] .auth-login-page .form-label {
    color: #edf2f7;
}
html[data-bs-theme="dark"] .auth-login-page .form-control {
    color: #f3f6f9;
    background-color: #20272e;
    border-color: #47525e;
}
html[data-bs-theme="dark"] .auth-login-page .form-control::placeholder {
    color: #8995a3;
}
html[data-bs-theme="dark"] .auth-language-button,
html[data-bs-theme="dark"] .auth-theme-button {
    color: #d7dee7;
    background: rgba(41, 49, 58, 0.94);
    border-color: #47525e;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.24);
}
html[data-bs-theme="dark"] .auth-language-button:hover,
html[data-bs-theme="dark"] .auth-language-button:focus,
html[data-bs-theme="dark"] .auth-theme-button:hover,
html[data-bs-theme="dark"] .auth-theme-button:focus {
    color: #c4b9ff;
    background: #303944;
    border-color: #7768e8;
}
html[data-bs-theme="dark"] .auth-language-menu {
    background: #29313a;
    border-color: #47525e;
}
html[data-bs-theme="dark"] .auth-language-item {
    color: #d7dee7;
}
html[data-bs-theme="dark"] .auth-language-item:hover,
html[data-bs-theme="dark"] .auth-language-item:focus,
html[data-bs-theme="dark"] .auth-language-item.is-active {
    color: #c4b9ff;
    background: #35334d;
}
html[data-bs-theme="dark"] .auth-theme-button .auth-theme-moon {
    display: none;
}
html[data-bs-theme="dark"] .auth-theme-button .auth-theme-sun {
    display: inline-block;
}

@media (max-width: 576px) {
    .auth-login-page .auth-page-content {
        justify-content: center;
        padding: 42px 0;
    }
    .auth-login-page .auth-page-content > .container-fluid {
        padding-right: 14px !important;
        padding-left: 14px !important;
    }
    .auth-login-page .auth-brand {
        margin-bottom: 18px !important;
    }
    .auth-login-page .auth-logo img {
        height: 72px !important;
    }
    .auth-login-page .auth-login-card .card-body {
        padding: 24px 20px !important;
    }
    .auth-login-page .auth-form-wrap {
        margin-top: 20px !important;
    }
    .auth-page-tools { top: 10px; right: 10px; }
    .auth-language-button,
    .auth-theme-button { width: 38px; height: 38px; }
}

@media (max-height: 680px) {
    .auth-login-page .auth-page-content {
        justify-content: center;
        padding: 36px 0;
    }
    .auth-login-page .auth-brand {
        margin-bottom: 5px !important;
    }
    .auth-login-page .auth-logo img {
        height: 56px !important;
    }
    .auth-login-page .auth-university-name {
        margin-top: 2px !important;
        font-size: 12px !important;
        line-height: 1.25;
    }
    .auth-login-page .auth-login-card .card-body {
        padding: 18px 22px !important;
    }
    .auth-login-page .auth-login-intro {
        margin-top: 0 !important;
    }
    .auth-login-page .auth-login-subtitle {
        margin-bottom: 5px;
    }
    .auth-login-page .auth-form-wrap { margin-top: 12px !important; }
    .auth-login-page .auth-field { margin-bottom: 10px; }
    .auth-login-page .form-check { margin-bottom: 10px !important; }
    .auth-login-page .form-control,
    .auth-login-page .btn[type="submit"] {
        min-height: 40px !important;
    }
    .auth-login-page .footer {
        padding: 3px 0 6px !important;
    }
}

@media (max-height: 600px) and (orientation: landscape) {
    .auth-login-page .auth-page-content {
        justify-content: center;
        padding: 30px 0;
    }
    .auth-login-page .auth-brand {
        margin-bottom: 3px !important;
    }
    .auth-login-page .auth-logo img {
        height: 40px !important;
    }
    .auth-login-page .auth-university-name {
        margin-top: 1px !important;
        font-size: var(--df-text-xs) !important;
    }
    .auth-login-page .auth-login-card .card-body {
        padding: 12px 18px !important;
    }
    .auth-login-page .auth-login-heading {
        margin-bottom: 2px;
        font-size: 14px !important;
    }
    .auth-login-page .auth-login-subtitle {
        display: none;
    }
    .auth-login-page .auth-form-wrap { margin-top: 8px !important; }
    .auth-login-page .form-label {
        margin-bottom: 2px;
        font-size: 12px !important;
    }
    .auth-login-page .form-control,
    .auth-login-page .btn[type="submit"] { min-height: 38px !important; padding-top: 6px; padding-bottom: 6px; }
    .auth-login-page .form-check {
        margin-bottom: 4px !important;
    }
    .auth-login-page .form-check-label {
        font-size: 12px !important;
    }
    .auth-login-page .footer {
        padding: 1px 0 3px !important;
    }
    .auth-login-page .footer p {
        font-size: var(--df-text-xs) !important;
    }
}

@media (max-height: 520px) {
    .auth-language-button,
    .auth-theme-button {
        width: 32px;
        height: 32px;
    }
    .auth-login-page .auth-page-content {
        justify-content: center;
        padding: 26px 0;
    }
    .auth-login-page .auth-logo img {
        height: 34px !important;
    }
    .auth-login-page .auth-university-name {
        font-size: var(--df-text-xs) !important;
    }
    .auth-login-page .auth-login-card {
        border-radius: 12px;
    }
    .auth-login-page .auth-login-card .card-body {
        padding: 10px 16px !important;
    }
    .auth-login-page .auth-form-wrap .mb-2,
    .auth-login-page .auth-form-wrap .mb-sm-3 {
        margin-bottom: 4px !important;
    }
    .auth-login-page .auth-form-wrap .mt-2,
    .auth-login-page .auth-form-wrap .mt-sm-4 {
        margin-top: 5px !important;
    }
}
</style>
@endsection

@section('content')
<div class="auth-page-wrapper auth-login-page">
    @php
        $activeLocale = session('lang', app()->getLocale());
        $activeLocale = in_array($activeLocale, ['en', 'kh'], true) ? $activeLocale : 'kh';
        $currentFlag = $activeLocale === 'kh' ? 'kh' : 'us';
    @endphp
    <div class="auth-page-tools">
        <button type="button" class="auth-theme-button" id="auth-theme-toggle" aria-label="{{ __('Switch theme') }}" title="{{ __('Switch theme') }}">
            <i class="ri-moon-line auth-theme-moon" aria-hidden="true"></i>
            <i class="ri-sun-line auth-theme-sun" aria-hidden="true"></i>
        </button>

        <div class="dropdown auth-language-dropdown">
            <button type="button" class="auth-language-button" data-bs-toggle="dropdown" aria-expanded="false" aria-label="{{ __('Language') }}">
                <img src="{{ URL::asset('build/images/flags/' . $currentFlag . '.svg') }}" class="rounded" alt="{{ $activeLocale === 'kh' ? __('Khmer') : __('English') }}">
            </button>
            <div class="dropdown-menu dropdown-menu-end auth-language-menu">
                <a href="{{ route('locale.update', ['locale' => 'en']) }}" class="dropdown-item auth-language-item {{ $activeLocale === 'en' ? 'is-active' : '' }}">
                    <img src="{{ URL::asset('build/images/flags/us.svg') }}" class="rounded" alt="{{ __('English') }}">
                    <span>{{ __('English') }}</span>
                </a>
                <a href="{{ route('locale.update', ['locale' => 'kh']) }}" class="dropdown-item auth-language-item {{ $activeLocale === 'kh' ? 'is-active' : '' }}">
                    <img src="{{ URL::asset('build/images/flags/kh.svg') }}" class="rounded" alt="{{ __('Khmer') }}">
                    <span>{{ __('Khmer') }}</span>
                </a>
            </div>
        </div>
    </div>

    <!-- auth page bg -->
    <div class="auth-one-bg-position auth-one-bg" id="auth-particles">
        <div class="bg-overlay"></div>
        <div class="shape">
            <svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 1440 120">
                <path d="M 0,36 C 144,53.6 432,123.2 720,124 C 1008,124.8 1296,56.8 1440,40L1440 140L0 140z"></path>
            </svg>
        </div>
    </div>

    <!-- auth page content -->
    <div class="auth-page-content">
        <div class="container-fluid px-3 px-sm-4">
            <div class="row">
                <div class="col-12">
                    <div class="text-center text-white-50 auth-brand">
                        <div>
                            <a href="index" class="d-inline-block auth-logo">
                                <img src="{{ $branding['login_logo']['url'] }}" alt="UHS"
                                     class="img-fluid"
                                     style="height: clamp(36px, 6vw, 52px);">
                            </a>
                        </div>
                        <p class="fw-medium auth-university-name">
                            {{ __('University of Health Sciences') }}
                        </p>
                    </div>
                </div>
            </div>

            <div class="row justify-content-center">
                <div class="col-12 col-sm-10 col-md-8 col-lg-6 col-xl-5 col-xxl-4">
                    <div class="card shadow-sm auth-login-card">
                        <div class="card-body p-2 p-sm-4">

                            <div class="text-center auth-login-intro">
                                <h1 class="text-primary auth-login-heading">{{ __('Welcome Back !') }}</h1>
                                <p class="text-muted auth-login-subtitle">{{ __('Sign in to continue.') }}</p>
                            </div>

                            <div class="auth-form-wrap">
                                @if($errors->has('keycloak'))
                                    <div class="alert alert-danger alert-dismissible fade show py-2 fs-13" role="alert">
                                        {{ $errors->first('keycloak') }}
                                        <button type="button" class="btn-close btn-sm" data-bs-dismiss="alert"></button>
                                    </div>
                                @endif

                                @if(config('services.keycloak.enabled'))
                                    @if(config('services.keycloak.client_id'))
                                        <div class="mt-3">
                                            <a href="{{ route('auth.keycloak.redirect') }}" class="btn btn-primary w-100">
                                                {{ __('Continue with UHS SSO (Keycloak)') }}
                                            </a>
                                            <small class="text-muted d-block mt-2 text-center auth-login-helper">{{ __('You will be redirected to the Keycloak login page.') }}</small>
                                        </div>
                                    @else
                                        <div class="alert alert-warning mb-0" role="alert">
                                            {{ __('Keycloak is not configured yet. Please set Keycloak environment values.') }}
                                        </div>
                                    @endif
                                @endif

                                @if(!config('services.keycloak.login_only') || !config('services.keycloak.enabled') || !config('services.keycloak.client_id'))
                                <form method="POST" action="{{ route('login') }}" id="login-form">
                                    @csrf

                                    <div class="auth-field">
                                        <label for="email" class="form-label fw-medium">
                                            {{ __('Email') }}
                                        </label>
                                        <input
                                            id="email"
                                            type="email"
                                            class="form-control form-control-sm form-control-md @error('email') is-invalid @enderror"
                                            name="email"
                                            value="{{ old('email') }}"
                                            required
                                            autocomplete="email"
                                            autofocus
                                            placeholder="{{ __('Enter Email') }}"
                                        >
                                        @error('email')
                                            <span class="invalid-feedback" role="alert">
                                                <strong>{{ $message }}</strong>
                                            </span>
                                        @enderror
                                    </div>

                                    <div class="auth-field">
                                        <label class="form-label fw-medium" for="password-input">
                                            {{ __('Password') }}
                                        </label>
                                        <div class="auth-pass-inputgroup">
                                            <div class="auth-password-field">
                                                <input
                                                    id="password-input"
                                                    type="password"
                                                    class="form-control password-input @error('password') is-invalid @enderror"
                                                    name="password"
                                                    required
                                                    autocomplete="current-password"
                                                    placeholder="{{ __('Enter password') }}"
                                                >
                                                <button
                                                    class="btn btn-link text-decoration-none password-addon"
                                                    type="button"
                                                    id="password-addon"
                                                    aria-label="{{ __('Show password') }}"
                                                    aria-pressed="false"
                                                >
                                                    <i class="ri-eye-fill" aria-hidden="true"></i>
                                                </button>
                                            </div>
                                            @error('password')
                                                <span class="invalid-feedback d-block" role="alert">
                                                    <strong>{{ $message }}</strong>
                                                </span>
                                            @enderror
                                        </div>
                                    </div>

                                    <div class="form-check">
                                        <input
                                            class="form-check-input"
                                            type="checkbox"
                                            name="remember"
                                            id="remember"
                                            {{ old('remember') ? 'checked' : '' }}
                                        >
                                        <label class="form-check-label" for="remember">
                                            {{ __('Remember me') }}
                                        </label>
                                    </div>

                                    <div class="auth-submit-wrap">
                                        <button class="btn btn-primary w-100" type="submit">
                                            {{ __('Sign In') }}
                                        </button>
                                    </div>
                                </form>
                                @endif
                            </div>
                            <!-- end form wrapper -->

                        </div>
                        <!-- end card body -->
                    </div>
                    <!-- end card -->
                </div>
            </div>
            <!-- end row -->
        </div>
        <!-- end container -->
    </div>
    <!-- end auth page content -->

    <!-- footer -->
    <footer class="footer">
        <div class="container">
            <div class="row">
                <div class="col-12">
                    <div class="text-center">
                        <p class="mb-0 text-muted fs-12">
                            &copy; <script>document.write(new Date().getFullYear())</script> {{ __('Powered by DCx') }}
                        </p>
                    </div>
                </div>
            </div>
        </div>
    </footer>
</div>
@endsection

@section('script')
<script src="{{ URL::asset('build/libs/particles.js/particles.js') }}"></script>
<script src="{{ URL::asset('build/js/pages/particles.app.js') }}"></script>
<script src="{{ URL::asset('build/js/pages/password-addon.init.js') }}"></script>
<script>
    (() => {
        const form = document.getElementById('login-form');
        const emailInput = document.getElementById('email');
        const passwordInput = document.getElementById('password-input');
        const rememberInput = document.getElementById('remember');
        const storageKey = 'uhs-dts-pending-login';
        const loginFailed = @json($errors->any());

        if (loginFailed) {
            try {
                const pendingLogin = JSON.parse(sessionStorage.getItem(storageKey) || 'null');

                if (pendingLogin) {
                    if (emailInput && !emailInput.value) {
                        emailInput.value = pendingLogin.email || '';
                    }

                    if (passwordInput) {
                        passwordInput.value = pendingLogin.password || '';
                    }

                    if (rememberInput) {
                        rememberInput.checked = Boolean(pendingLogin.remember);
                    }
                }
            } catch (error) {
                // Ignore unavailable or malformed browser storage.
            } finally {
                sessionStorage.removeItem(storageKey);
            }
        } else {
            sessionStorage.removeItem(storageKey);
        }

        form?.addEventListener('submit', () => {
            try {
                sessionStorage.setItem(storageKey, JSON.stringify({
                    email: emailInput?.value || '',
                    password: passwordInput?.value || '',
                    remember: Boolean(rememberInput?.checked),
                }));
            } catch (error) {
                // Login must still work when browser storage is unavailable.
            }
        });
    })();

    document.getElementById('password-addon')?.addEventListener('click', function () {
        const input = document.getElementById('password-input');
        const icon = this.querySelector('i');
        const isVisible = input?.type === 'text';

        this.setAttribute('aria-pressed', isVisible ? 'true' : 'false');
        this.setAttribute('aria-label', isVisible ? @json(__('Hide password')) : @json(__('Show password')));
        icon?.classList.toggle('ri-eye-fill', !isVisible);
        icon?.classList.toggle('ri-eye-off-fill', isVisible);
    });

    document.getElementById('auth-theme-toggle')?.addEventListener('click', function () {
        if (!window.UhsAuthTheme) {
            return;
        }

        window.UhsAuthTheme.apply(
            window.UhsAuthTheme.current() === 'dark' ? 'light' : 'dark'
        );
    });
</script>
@endsection