@extends('layouts.app')

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-md-8 offset-md-2">
            <div class="card">
                <div class="card-header d-flex justify-content-between align-items-center">
                    <h4 class="mb-0">Edit User: {{ $user->username }}</h4>
                    <a href="{{ route('users.show', $user->id) }}" class="btn btn-info">
                        <i class="fas fa-eye"></i> View
                    </a>
                </div>
                <div class="card-body">
                    <form id="editUserForm" action="{{ route('users.update', $user->id) }}" method="POST">
                        @csrf
                        @method('PUT')
                        
                        <div class="row mb-4">
                            <div class="col-md-12">
                                <div class="d-flex align-items-center">
                                    <div class="avatar-lg me-3">
                                        <div class="avatar-title bg-primary rounded-circle text-white" style="width: 60px; height: 60px; font-size: 1.5rem;">
                                            {{ substr($user->username, 0, 1) }}
                                        </div>
                                    </div>
                                    <div>
                                        <h5 class="mb-0">{{ $user->username }}</h5>
                                        <p class="text-muted mb-0">{{ $user->email }}</p>
                                        @if($user->id === auth()->id())
                                            <span class="badge bg-info">Your Account</span>
                                        @endif
                                    </div>
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="username" class="form-label">Username *</label>
                                    <input type="text" class="form-control" id="username" name="username" 
                                           value="{{ old('username', $user->username) }}" required maxlength="255">
                                    <div class="invalid-feedback" id="usernameError"></div>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="email" class="form-label">Email Address *</label>
                                    <input type="email" class="form-control" id="email" name="email" 
                                           value="{{ old('email', $user->email) }}" required>
                                    <div class="invalid-feedback" id="emailError"></div>
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="password" class="form-label">Password</label>
                                    <input type="password" class="form-control" id="password" name="password" 
                                           minlength="8" placeholder="Leave blank to keep current password">
                                    <div class="form-text">Minimum 8 characters</div>
                                    <div class="invalid-feedback" id="passwordError"></div>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="password_confirmation" class="form-label">Confirm Password</label>
                                    <input type="password" class="form-control" id="password_confirmation" 
                                           name="password_confirmation" minlength="8">
                                </div>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="user_type" class="form-label">User Role *</label>
                                    <select class="form-select" id="user_type" name="user_type" required>
                                        <option value="">Select Role</option>
                                        <option value="admin" {{ old('user_type', $user->user_type) == 'admin' ? 'selected' : '' }}>Administrator</option>
                                        <option value="lms_manager" {{ old('user_type', $user->user_type) == 'lms_manager' ? 'selected' : '' }}>LMS Manager</option>
                                        <option value="teacher" {{ old('user_type', $user->user_type) == 'teacher' ? 'selected' : '' }}>Teacher</option>
                                        <option value="student" {{ old('user_type', $user->user_type) == 'student' ? 'selected' : '' }}>Student</option>
                                    </select>
                                    <div class="invalid-feedback" id="userTypeError"></div>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="phone" class="form-label">Phone Number</label>
                                    <input type="text" class="form-control" id="phone" name="phone" 
                                           value="{{ old('phone', $user->phone) }}" maxlength="20">
                                    <div class="invalid-feedback" id="phoneError"></div>
                                </div>
                            </div>
                        </div>

                        <div class="mb-3">
                            <div class="form-check form-switch">
                                <input class="form-check-input" type="checkbox" id="is_active" name="is_active" 
                                       value="1" {{ old('is_active', $user->is_active) ? 'checked' : '' }}
                                       {{ $user->id === auth()->id() ? 'disabled' : '' }}>
                                <label class="form-check-label" for="is_active">
                                    Active User
                                    @if($user->id === auth()->id())
                                        <small class="text-muted">(You cannot deactivate your own account)</small>
                                    @endif
                                </label>
                            </div>
                        </div>

                        <div class="alert alert-warning">
                            <h6><i class="fas fa-exclamation-triangle"></i> Important Notes</h6>
                            <ul class="mb-0">
                                <li>Changing user role may affect their system permissions</li>
                                <li>Deactivating a user will prevent them from logging in</li>
                                <li>Password should be at least 8 characters long</li>
                            </ul>
                        </div>

                        <div class="d-flex justify-content-between">
                            <a href="{{ route('users.index') }}" class="btn btn-secondary">
                                <i class="fas fa-arrow-left"></i> Cancel
                            </a>
                            <button type="submit" class="btn btn-primary" id="updateBtn">
                                <i class="fas fa-save"></i> Update User
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
$(document).ready(function() {
    $('#editUserForm').on('submit', function(e) {
        e.preventDefault();
        
        const updateBtn = $('#updateBtn');
        const originalText = updateBtn.html();
        
        updateBtn.prop('disabled', true).html('<i class="fas fa-spinner fa-spin"></i> Updating...');
        
        $('.is-invalid').removeClass('is-invalid');
        $('.invalid-feedback').text('');
        
        $.ajax({
            url: $(this).attr('action'),
            type: 'POST',
            data: $(this).serialize(),
            success: function(response) {
                window.location.href = '{{ route("users.show", $user->id) }}';
            },
            error: function(xhr) {
                updateBtn.prop('disabled', false).html(originalText);
                
                if (xhr.status === 422) {
                    const errors = xhr.responseJSON.errors;
                    Object.keys(errors).forEach(field => {
                        const input = $(`[name="${field}"]`);
                        const errorDiv = $(`#${field}Error`);
                        
                        input.addClass('is-invalid');
                        errorDiv.text(errors[field][0]);
                    });
                } else {
                    alert('Error updating user. Please try again.');
                }
            }
        });
    });

    // Real-time password confirmation validation
    $('#password_confirmation').on('keyup', function() {
        const password = $('#password').val();
        const confirmPassword = $(this).val();
        
        if (password !== confirmPassword && password.length > 0) {
            $(this).addClass('is-invalid');
        } else {
            $(this).removeClass('is-invalid');
        }
    });
});
</script>

<style>
.avatar-lg {
    display: flex;
    align-items: center;
    justify-content: center;
}
.avatar-title {
    display: flex;
    align-items: center;
    justify-content: center;
}
</style>
@endpush