@extends('layouts.dashboard')

@section('title', 'My Courses')

@section('page-content')
<div class="space-y-6">
    <!-- Page Header -->
    <div class="flex items-center justify-between">
        <div>
            <h1 class="text-2xl font-bold text-gray-900">My Courses</h1>
            <p class="text-gray-600 mt-1">View your course enrollment history and grades</p>
        </div>
        <a href="{{ route('courses.register') }}" class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700">
            Register for Courses
        </a>
    </div>

    <!-- Current Semester Summary -->
    @if($currentYear && $currentSemester && $currentEnrollments->isNotEmpty())
    <div class="bg-white rounded-xl shadow-sm p-6 border border-gray-100">
        <div class="flex items-center justify-between mb-4">
            <h2 class="text-lg font-semibold text-gray-900">{{ $currentYear->name }} - {{ $currentSemester->name }}</h2>
            <span class="px-3 py-1 bg-blue-100 text-blue-800 text-sm font-medium rounded-full">
                {{ $currentEnrollments->count() }} courses | {{ $currentEnrollments->sum(fn($e) => $e->course->credit_hours) }} credits
            </span>
        </div>
        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
            @foreach($currentEnrollments as $enrollment)
                <div class="border border-gray-200 rounded-lg p-4">
                    <div class="flex items-start justify-between">
                        <div class="flex-1">
                            <span class="font-mono text-sm font-bold text-blue-600">{{ $enrollment->course->code }}</span>
                            <h4 class="font-medium text-gray-900 mt-1 text-sm">{{ $enrollment->course->name }}</h4>
                            <div class="flex items-center space-x-3 mt-2 text-xs text-gray-500">
                                <span>{{ $enrollment->course->credit_hours }} Credits</span>
                                @if($enrollment->status === 'enrolled')
                                    <span class="px-2 py-0.5 bg-green-100 text-green-700 rounded-full">Enrolled</span>
                                @elseif($enrollment->status === 'completed')
                                    <span class="px-2 py-0.5 bg-blue-100 text-blue-700 rounded-full">Completed</span>
                                @elseif($enrollment->status === 'dropped')
                                    <span class="px-2 py-0.5 bg-red-100 text-red-700 rounded-full">Dropped</span>
                                @endif
                            </div>
                            @if($enrollment->grade)
                                <div class="mt-2">
                                    <span class="text-lg font-bold text-gray-900">{{ $enrollment->grade }}</span>
                                    <span class="text-xs text-gray-500">({{ number_format($enrollment->grade_point, 2) }})</span>
                                </div>
                            @endif
                        </div>
                    </div>
                </div>
            @endforeach
        </div>
    </div>
    @endif

    <!-- Enrollment History -->
    <div class="bg-white rounded-xl shadow-sm border border-gray-100">
        <div class="px-6 py-4 border-b border-gray-200">
            <h2 class="text-lg font-semibold text-gray-900">Enrollment History</h2>
        </div>

        @if($enrollmentHistory->isEmpty())
            <div class="text-center py-12">
                <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253"/>
                </svg>
                <p class="mt-2 text-sm text-gray-500">No enrollment history</p>
                <p class="text-xs text-gray-400 mt-1">Your course enrollments will appear here</p>
            </div>
        @else
            <div class="divide-y divide-gray-200">
                @foreach($enrollmentHistory as $semesterLabel => $enrollments)
                    <div class="p-6">
                        <div class="flex items-center justify-between mb-4">
                            <h3 class="font-semibold text-gray-900">{{ $semesterLabel }}</h3>
                            <div class="flex items-center space-x-4 text-sm text-gray-600">
                                <span>{{ $enrollments->count() }} courses</span>
                                <span>{{ $enrollments->sum(fn($e) => $e->course->credit_hours) }} credits</span>
                                @if($enrollments->where('status', 'completed')->count() > 0)
                                    @php
                                        $completedWithGrades = $enrollments->where('status', 'completed')->whereNotNull('grade_point');
                                        $semesterGPA = $completedWithGrades->count() > 0
                                            ? $completedWithGrades->avg('grade_point')
                                            : null;
                                    @endphp
                                    @if($semesterGPA)
                                        <span class="font-medium text-blue-600">GPA: {{ number_format($semesterGPA, 2) }}</span>
                                    @endif
                                @endif
                            </div>
                        </div>

                        <div class="overflow-x-auto">
                            <table class="min-w-full divide-y divide-gray-200">
                                <thead class="bg-gray-50">
                                    <tr>
                                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Course Code</th>
                                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Course Name</th>
                                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Credits</th>
                                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Status</th>
                                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Grade</th>
                                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Grade Point</th>
                                    </tr>
                                </thead>
                                <tbody class="bg-white divide-y divide-gray-200">
                                    @foreach($enrollments as $enrollment)
                                        <tr class="hover:bg-gray-50">
                                            <td class="px-4 py-3 whitespace-nowrap">
                                                <span class="font-mono text-sm font-medium text-gray-900">{{ $enrollment->course->code }}</span>
                                            </td>
                                            <td class="px-4 py-3">
                                                <span class="text-sm text-gray-900">{{ $enrollment->course->name }}</span>
                                            </td>
                                            <td class="px-4 py-3 whitespace-nowrap">
                                                <span class="text-sm text-gray-900">{{ $enrollment->course->credit_hours }}</span>
                                            </td>
                                            <td class="px-4 py-3 whitespace-nowrap">
                                                @if($enrollment->status === 'enrolled')
                                                    <span class="px-2 py-1 text-xs font-semibold rounded-full bg-green-100 text-green-800">Enrolled</span>
                                                @elseif($enrollment->status === 'completed')
                                                    <span class="px-2 py-1 text-xs font-semibold rounded-full bg-blue-100 text-blue-800">Completed</span>
                                                @elseif($enrollment->status === 'dropped')
                                                    <span class="px-2 py-1 text-xs font-semibold rounded-full bg-red-100 text-red-800">Dropped</span>
                                                @elseif($enrollment->status === 'failed')
                                                    <span class="px-2 py-1 text-xs font-semibold rounded-full bg-orange-100 text-orange-800">Failed</span>
                                                @endif
                                            </td>
                                            <td class="px-4 py-3 whitespace-nowrap">
                                                @if($enrollment->grade)
                                                    <span class="text-sm font-semibold text-gray-900">{{ $enrollment->grade }}</span>
                                                @else
                                                    <span class="text-sm text-gray-400">—</span>
                                                @endif
                                            </td>
                                            <td class="px-4 py-3 whitespace-nowrap">
                                                @if($enrollment->grade_point)
                                                    <span class="text-sm text-gray-900">{{ number_format($enrollment->grade_point, 2) }}</span>
                                                @else
                                                    <span class="text-sm text-gray-400">—</span>
                                                @endif
                                            </td>
                                        </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        </div>
                    </div>
                @endforeach
            </div>
        @endif
    </div>
</div>
@endsection