@extends('admin.layout.app')

@section('body')
<div class="card card-page p-3 shadow-sm">
    <div class="d-flex justify-content-between align-items-center mb-3">
        <div>
            <h4 class="mb-0">{{ $course->title }}</h4>
            <small class="text-muted d-flex flex-wrap gap-2">
                <span class="badge bg-info">
                    <i class="fas fa-calendar-alt me-1"></i> {{ $course->semester->name ?? '—' }}
                </span>
                <span class="badge bg-light text-dark border">{{ __('admin.code') }}: {{ $course->code ?? '—' }}</span>
                <span class="badge {{ $course->credit_hours ? 'bg-success' : 'bg-secondary' }}">
                    {{ __('admin.credit') }}: {{ $course->credit_hours ?? '—' }}
                </span>
            </small>
        </div>

        <div class="d-flex gap-2">
            <a href="{{ route('courses.edit', $course->id) }}" class="btn btn-outline-primary">{{ __('admin.edit') }}</a>
            <a href="{{ route('courses.index', ['semester_id' => $course->semester_id]) }}" class="btn btn-outline-secondary">{{ __('admin.back') }}</a>
        </div>
    </div>

    <div class="row g-3">
        <div class="col-md-3"><strong>{{ __('admin.id_2') }}</strong> {{ $course->id }}</div>
        <div class="col-md-3"><strong>{{ __('admin.semester_3') }}</strong> {{ $course->semester->name ?? '—' }}</div>
        <div class="col-md-3"><strong>{{ __('admin.code_2') }}</strong> {{ $course->code ?? '—' }}</div>
        <div class="col-md-3"><strong>{{ __('admin.credit_hours_2') }}</strong> {{ $course->credit_hours ?? '—' }}</div>
    </div>

    <div class="mt-3">
        <h5 class="fw-bold">Information</h5>
        <div class="p-3 bg-light rounded">
            {!! $course->information ? nl2br(e($course->information)) : '<span class="text-muted">No information added yet.</span>' !!}
        </div>
    </div>

    <hr>

    <div class="d-flex flex-wrap gap-2">
        <a href="{{ route('courses.index', ['semester_id' => $course->semester_id]) }}" class="btn btn-light">
            <i class="fas fa-list me-2"></i> {{ __('admin.back_to_list') }}
        </a>
        <a href="#" class="btn btn-light">
            <i class="fas fa-users me-2"></i> {{ __('admin.assign_teachers_n_a') }}
        </a>
        <a href="#" class="btn btn-light">
            <i class="fas fa-book me-2"></i> {{ __('admin.materials_n_a') }}
        </a>
        <a href="{{ route('exam.create', ['course_id' => $course->id]) }}" class="btn btn-primary">
            <i class="fas fa-chalkboard-teacher me-2"></i> {{ __('admin.enter_marks') }}
        </a>

        @if($course->semester_id)
            <a href="{{ route('exam.semesters.results', $course->semester_id) }}" class="btn btn-info">
                <i class="fas fa-chart-line me-2"></i> {{ __('admin.view_semester_results') }}
            </a>
        @endif
    </div>

    @php
        $totalResultsEntered = \App\Models\StudentCourseResult::where('course_id', $course->id)->count();
        $totalExpected = \App\Models\CourseEnrollment::where('course_id', $course->id)
                            ->where('status', 'active')
                            ->count();
        $percentage = $totalExpected ? round(($totalResultsEntered / $totalExpected) * 100) : 0;
    @endphp
    <div class="mt-3 p-3 bg-light rounded">
        <strong>{{ __('admin.marks_entry_status') }}</strong>
        @if($totalResultsEntered > 0)
            {{ $totalResultsEntered }} / {{ $totalExpected }} student results saved ({{ $percentage }}%)
            @if($percentage < 100)
                <span class="text-warning">{{ __('admin.incomplete') }}</span>
            @else
                <span class="text-success">{{ __('admin.complete') }}</span>
            @endif
        @else
            No marks entered yet.
        @endif
    </div>
</div>
@endsection