@extends('layouts.main_dashboard.app')

@section('title', __('dashboard.Course Progress'))
@section('page_heading', __('dashboard.Course Progress'))
@section('page_subtitle', __('dashboard.Course progress subtitle'))
@section('skip_page_hero', true)

@section('content')
@php
    $studentCollection = collect($students);
    $progressValues = collect($progressData)->values()->filter(fn ($value) => $value !== null);
    $averageProgress = $progressValues->count() ? round($progressValues->avg()) : 0;
    $highestProgress = $progressValues->count() ? $progressValues->max() : 0;
    $lowestProgress = $progressValues->count() ? $progressValues->min() : 0;
@endphp

<div class="space-y-6">
    <section class="rounded-xl border border-surface-200 bg-white p-5 shadow-sm dark:border-surface-800 dark:bg-surface-900">
        <h1 class="text-3xl font-black text-surface-900 dark:text-white">{{ __('dashboard.Course Progress') }}</h1>
        <p class="mt-3 max-w-3xl text-sm leading-7 text-surface-500 dark:text-surface-400">{{ __('dashboard.Course progress subtitle') }}</p>
    </section>

    <section class="grid gap-4 md:grid-cols-2 xl:grid-cols-4">
        <article class="rounded-xl border border-surface-200 bg-white p-5 shadow-sm dark:border-surface-800 dark:bg-surface-900">
            <p class="text-xs font-bold uppercase tracking-[0.24em] text-surface-400 dark:text-surface-500">{{ __('dashboard.Enrolled Students') }}</p>
            <p class="mt-3 text-3xl font-black text-surface-900 dark:text-white">{{ number_format($studentCollection->count()) }}</p>
        </article>
        <article class="rounded-xl border border-surface-200 bg-white p-5 shadow-sm dark:border-surface-800 dark:bg-surface-900">
            <p class="text-xs font-bold uppercase tracking-[0.24em] text-surface-400 dark:text-surface-500">{{ __('dashboard.Average Progress') }}</p>
            <p class="mt-3 text-3xl font-black text-surface-900 dark:text-white">{{ $averageProgress }}%</p>
        </article>
        <article class="rounded-xl border border-surface-200 bg-white p-5 shadow-sm dark:border-surface-800 dark:bg-surface-900">
            <p class="text-xs font-bold uppercase tracking-[0.24em] text-surface-400 dark:text-surface-500">{{ __('dashboard.Highest Progress') }}</p>
            <p class="mt-3 text-3xl font-black text-surface-900 dark:text-white">{{ $highestProgress }}%</p>
        </article>
        <article class="rounded-xl border border-surface-200 bg-white p-5 shadow-sm dark:border-surface-800 dark:bg-surface-900">
            <p class="text-xs font-bold uppercase tracking-[0.24em] text-surface-400 dark:text-surface-500">{{ __('dashboard.Selected Course') }}</p>
            <p class="mt-3 text-lg font-black text-surface-900 dark:text-white">{{ $course?->name ?: '—' }}</p>
            <p class="mt-2 text-sm text-surface-500 dark:text-surface-400">{{ __('dashboard.Selected Class') }}: {{ $course?->schoolClass?->name ?: '—' }}</p>
        </article>
    </section>

    <section class="rounded-xl border border-surface-200 bg-white p-6 shadow-sm dark:border-surface-800 dark:bg-surface-900">
        <form action="{{ route('admin.statistics.course-progress') }}" method="GET" class="grid gap-4 md:grid-cols-2 xl:grid-cols-6">
            <select name="stage" class="rounded-2xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                <option value="">{{ __('dashboard.Select Stage') }}</option>
                @foreach($stages as $stage)
                    <option value="{{ $stage->id }}" {{ $selectedStage == $stage->id ? 'selected' : '' }}>{{ $stage->name }}</option>
                @endforeach
            </select>

            <select name="grade" class="rounded-2xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                <option value="">{{ __('dashboard.Select Grade') }}</option>
                @foreach($grades as $grade)
                    <option value="{{ $grade->id }}" {{ $selectedGrade == $grade->id ? 'selected' : '' }}>{{ $grade->stage->name . ' ' . $grade->name }}</option>
                @endforeach
            </select>

            <select name="school_class" id="school_class" class="rounded-2xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                <option value="">{{ __('dashboard.Select School Class') }}</option>
                @foreach($schoolClasses as $schoolClass)
                    <option value="{{ $schoolClass->id }}" {{ $selectedSchoolClass == $schoolClass->id ? 'selected' : '' }}>
                        {{ $schoolClass->grade->name . ' ' .  $schoolClass->name }}
                    </option>
                @endforeach
            </select>

            <select name="course_id" id="courses" class="rounded-2xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-700 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100">
                <option value="">{{ __('dashboard.Select Course') }}</option>
                @foreach($courses as $courseOption)
                    <option value="{{ $courseOption->id }}" {{ $selectedCourseId == $courseOption->id ? 'selected' : '' }}>{{ $courseOption->name }}</option>
                @endforeach
            </select>

            <button type="submit" class="inline-flex h-11 items-center justify-center gap-2 rounded-2xl bg-brand-600 px-5 text-sm font-bold text-white transition hover:bg-brand-700">
                <i class="fa-solid fa-filter text-xs"></i>
                <span>{{ __('dashboard.Filter') }}</span>
            </button>

            <a href="{{ route('admin.statistics.course-progress') }}" class="inline-flex h-11 items-center justify-center rounded-2xl border border-surface-200 bg-white px-5 text-sm font-bold text-surface-700 transition hover:bg-surface-50 dark:border-surface-700 dark:bg-surface-900 dark:text-surface-200 dark:hover:bg-surface-800">
                {{ __('dashboard.Reset') }}
            </a>
        </form>
    </section>

    <section class="overflow-hidden rounded-xl border border-surface-200 bg-white shadow-sm dark:border-surface-800 dark:bg-surface-900">
        <div class="border-b border-surface-200 bg-surface-50/80 px-6 py-5 dark:border-surface-800 dark:bg-surface-800/30">
            <h2 class="text-lg font-black text-surface-900 dark:text-white">{{ __('dashboard.Progress Results') }}</h2>
            <p class="mt-1 text-sm text-surface-500 dark:text-surface-400">{{ __('dashboard.Results') }}: {{ number_format($studentCollection->count()) }}</p>
        </div>

        @if($studentCollection->isNotEmpty() && $course)
            <div class="overflow-x-auto">
                <table class="min-w-full divide-y divide-surface-200 dark:divide-surface-800">
                    <thead class="bg-surface-50/80 dark:bg-surface-800/40">
                        <tr class="text-right text-xs font-black uppercase tracking-[0.2em] text-surface-500 dark:text-surface-400">
                            <th class="px-6 py-4">#</th>
                            <th class="px-6 py-4">{{ __('dashboard.Student Name') }}</th>
                            <th class="px-6 py-4">{{ __('dashboard.Progress (%)') }}</th>
                        </tr>
                    </thead>
                    <tbody class="divide-y divide-surface-200 dark:divide-surface-800">
                        @foreach($studentCollection as $student)
                            @php
                                $progress = $progressData[$student->id] ?? 0;
                            @endphp
                            <tr class="transition hover:bg-surface-50/80 dark:hover:bg-surface-800/20">
                                <td class="px-6 py-5 text-sm font-bold text-surface-500 dark:text-surface-400">{{ $loop->iteration }}</td>
                                <td class="px-6 py-5 text-sm font-bold text-surface-900 dark:text-white">{{ $student->name }}</td>
                                <td class="px-6 py-5">
                                    <div class="flex min-w-[240px] items-center gap-4">
                                        <div class="h-2 flex-1 rounded-full bg-surface-100 dark:bg-surface-800">
                                            <div class="h-2 rounded-full bg-brand-600" style="width: {{ max(0, min(100, $progress)) }}%"></div>
                                        </div>
                                        <span class="w-14 text-sm font-black text-surface-900 dark:text-white">{{ $progress }}%</span>
                                    </div>
                                </td>
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>
        @else
            <div class="px-6 py-16 text-center">
                <div class="mx-auto flex h-20 w-20 items-center justify-center rounded-full bg-brand-50 text-brand-600 dark:bg-brand-500/10 dark:text-brand-300">
                    <i class="fa-solid fa-chart-line text-3xl"></i>
                </div>
                <h3 class="mt-6 text-xl font-black text-surface-900 dark:text-white">{{ __('dashboard.No students found for the selected course') }}</h3>
            </div>
        @endif
    </section>
</div>
@endsection

@section('scripts')
<script>
    $(document).ready(function () {
        $('#school_class').on('change', function () {
            const schoolClassId = $(this).val();

            $.ajax({
                url: '{{ route('admin.getCoursesBySchoolClass') }}',
                type: 'GET',
                data: {
                    school_class_id: schoolClassId
                },
                success: function (courses) {
                    $('#courses').empty();
                    $('#courses').append('<option value="">{{ __('dashboard.Select Course') }}</option>');

                    $.each(courses, function (_, course) {
                        $('#courses').append('<option value="' + course.id + '">' + course.name + '</option>');
                    });
                }
            });
        });
    });
</script>
@endsection