@extends('admin.layouts.app')

@section('title', 'Courses')
@section('page-title', 'Courses')

@section('content')

{{-- Header --}}
<div class="mb-8 flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
    <div>
        <h2 class="text-2xl font-bold text-gray-900">Courses</h2>
        <p class="mt-1 text-sm text-gray-500">Manage all training programs shown on the website</p>
    </div>
    <a href="{{ route('admin.courses.create') }}"
       class="inline-flex items-center gap-x-2 rounded-xl px-5 py-3 text-sm font-bold text-white shadow-lg hover:shadow-xl transition-all hover:-translate-y-0.5"
       style="background:#027fc5;">
        <i class="fas fa-plus"></i> Add New Course
    </a>
</div>

{{-- Stats row --}}
<div class="grid grid-cols-1 sm:grid-cols-3 gap-4 mb-8">
    @php
        $total    = \App\Models\Course::count();
        $active   = \App\Models\Course::where('is_active', true)->count();
        $featured = \App\Models\Course::where('is_featured', true)->count();
    @endphp
    <div class="bg-white rounded-xl p-5 border border-gray-100 shadow-sm flex items-center justify-between">
        <div>
            <p class="text-xs font-semibold text-gray-500 uppercase tracking-wide">Total</p>
            <p class="text-3xl font-extrabold text-gray-900 mt-1">{{ $total }}</p>
        </div>
        <div class="w-12 h-12 rounded-xl flex items-center justify-center" style="background:rgba(2,127,197,0.1);">
            <i class="fas fa-graduation-cap text-xl" style="color:#027fc5;"></i>
        </div>
    </div>
    <div class="bg-white rounded-xl p-5 border border-gray-100 shadow-sm flex items-center justify-between">
        <div>
            <p class="text-xs font-semibold text-gray-500 uppercase tracking-wide">Active</p>
            <p class="text-3xl font-extrabold text-gray-900 mt-1">{{ $active }}</p>
        </div>
        <div class="w-12 h-12 rounded-xl flex items-center justify-center" style="background:rgba(3,136,210,0.1);">
            <i class="fas fa-circle-check text-xl" style="color:#027fc5;"></i>
        </div>
    </div>
    <div class="bg-white rounded-xl p-5 border border-gray-100 shadow-sm flex items-center justify-between">
        <div>
            <p class="text-xs font-semibold text-gray-500 uppercase tracking-wide">Featured</p>
            <p class="text-3xl font-extrabold text-gray-900 mt-1">{{ $featured }}</p>
        </div>
        <div class="w-12 h-12 rounded-xl flex items-center justify-center bg-yellow-50">
            <i class="fas fa-star text-xl text-yellow-500"></i>
        </div>
    </div>
</div>

{{-- Search bar --}}
<div class="bg-white rounded-xl border border-gray-100 p-4 mb-6 shadow-sm">
    <form method="GET" action="{{ route('admin.courses.index') }}" class="flex flex-col sm:flex-row gap-3">
        <div class="flex-1 relative">
            <span class="absolute inset-y-0 left-4 flex items-center text-gray-400 pointer-events-none">
                <i class="fas fa-search"></i>
            </span>
            <input type="text" name="search" value="{{ request('search') }}"
                   placeholder="Search by title..."
                   class="block w-full rounded-xl border-0 py-2.5 pl-11 pr-4 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 placeholder:text-gray-400 focus:ring-2 focus:ring-primary-600 text-sm">
        </div>
        <select name="status"
                class="rounded-xl border-0 py-2.5 px-4 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 focus:ring-2 focus:ring-primary-600 text-sm">
            <option value="">All Status</option>
            <option value="active"   {{ request('status') === 'active'   ? 'selected' : '' }}>Active</option>
            <option value="inactive" {{ request('status') === 'inactive' ? 'selected' : '' }}>Inactive</option>
        </select>
        <button type="submit" class="inline-flex items-center gap-x-2 rounded-xl px-5 py-2.5 text-sm font-semibold text-white" style="background:#027fc5;">
            <i class="fas fa-filter"></i> Filter
        </button>
        @if(request('search') || request('status'))
        <a href="{{ route('admin.courses.index') }}" class="inline-flex items-center gap-x-2 rounded-xl px-5 py-2.5 text-sm font-semibold bg-gray-100 text-gray-700 hover:bg-gray-200 transition-colors">
            <i class="fas fa-times"></i> Clear
        </a>
        @endif
    </form>
</div>

{{-- Table --}}
@if($courses->isEmpty())
<div class="bg-white rounded-2xl border border-gray-100 shadow-sm text-center py-16">
    <div class="w-20 h-20 rounded-full mx-auto mb-6 flex items-center justify-center" style="background:#027fc5;">
        <i class="fas fa-graduation-cap text-4xl text-gray-300"></i>
    </div>
    <h3 class="text-lg font-semibold text-gray-900 mb-2">No courses found</h3>
    <p class="text-gray-500 mb-6">Get started by adding your first course.</p>
    <a href="{{ route('admin.courses.create') }}"
       class="inline-flex items-center gap-x-2 rounded-xl px-6 py-3 text-sm font-bold text-white shadow-lg"
       style="background:#027fc5;">
        <i class="fas fa-plus"></i> Add First Course
    </a>
</div>
@else
<div class="bg-white rounded-2xl border border-gray-100 shadow-sm overflow-hidden">
    <div class="overflow-x-auto">
        <table class="min-w-full divide-y divide-gray-100">
            <thead class="bg-gray-50">
                <tr>
                    <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider w-10">#</th>
                    <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider">Course</th>
                    <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider">Duration</th>
                    <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider">Starting Date</th>
                    <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider">Status</th>
                    <th class="px-4 py-3 text-right text-xs font-semibold text-gray-500 uppercase tracking-wider">Actions</th>
                </tr>
            </thead>
            <tbody class="divide-y divide-gray-50">
                @foreach($courses as $course)
                <tr class="hover:bg-gray-50 transition-colors">
                    {{-- Sort order --}}
                    <td class="px-4 py-4 text-sm text-gray-400 font-mono">{{ $course->sort_order ?: $loop->iteration }}</td>

                    {{-- Course info --}}
                    <td class="px-4 py-4">
                        <div class="flex items-center gap-x-4">
                            {{-- Thumbnail --}}
                            @if($course->featured_image && file_exists(public_path('uploads/courses/'.$course->featured_image)))
                                <img src="{{ asset('uploads/courses/'.$course->featured_image) }}"
                                     alt="{{ $course->title }}"
                                     class="w-16 h-14 rounded-xl object-cover flex-shrink-0 shadow-sm">
                            @else
                                <div class="w-16 h-14 rounded-xl flex items-center justify-center flex-shrink-0 shadow-sm text-white"
                                     style="background:#027fc5;">
                                    <i class="{{ $course->icon_class ?? 'fas fa-graduation-cap' }} text-xl"></i>
                                </div>
                            @endif
                            <div class="min-w-0">
                                <p class="text-sm font-bold text-gray-900 truncate max-w-xs">{{ $course->title }}</p>
                                <p class="text-xs text-gray-400 truncate">/courses/{{ $course->slug }}</p>
                                @if($course->certification)
                                    <span class="inline-flex mt-1 items-center gap-x-1 px-2 py-0.5 text-xs font-semibold rounded-full bg-yellow-50 text-yellow-700 border border-yellow-100">
                                        <i class="fas fa-certificate text-xs"></i> {{ $course->certification }}
                                    </span>
                                @endif
                            </div>
                        </div>
                    </td>

                    {{-- Duration --}}
                    <td class="px-4 py-4 text-sm text-gray-600 whitespace-nowrap">
                        {{ $course->duration ?? '—' }}
                    </td>

                    {{-- Starting date --}}
                    <td class="px-4 py-4 text-sm text-gray-600 whitespace-nowrap">
                        {{ $course->formatted_starting_date }}
                    </td>

                    {{-- Status badges --}}
                    <td class="px-4 py-4 whitespace-nowrap">
                        <div class="flex flex-col gap-1">
                            @if($course->is_active)
                                <span class="inline-flex items-center gap-x-1 rounded-full px-2.5 py-1 text-xs font-semibold bg-green-50 text-green-700 border border-green-100">
                                    <span class="w-1.5 h-1.5 rounded-full bg-green-500"></span> Active
                                </span>
                            @else
                                <span class="inline-flex items-center gap-x-1 rounded-full px-2.5 py-1 text-xs font-semibold bg-gray-100 text-gray-600">
                                    <span class="w-1.5 h-1.5 rounded-full bg-gray-400"></span> Inactive
                                </span>
                            @endif
                            @if($course->is_featured)
                                <span class="inline-flex items-center gap-x-1 rounded-full px-2.5 py-1 text-xs font-semibold bg-yellow-50 text-yellow-700 border border-yellow-100">
                                    <i class="fas fa-star text-xs"></i> Featured
                                </span>
                            @endif
                        </div>
                    </td>

                    {{-- Actions --}}
                    <td class="px-4 py-4 whitespace-nowrap text-right">
                        <div class="flex items-center justify-end gap-x-2">
                            <a href="{{ route('admin.courses.edit', $course) }}"
                               class="p-2 rounded-lg text-gray-400 hover:text-primary-600 hover:bg-primary-50 transition-colors" title="Edit">
                                <i class="fas fa-pen text-sm"></i>
                            </a>
                            <form method="POST" action="{{ route('admin.courses.destroy', $course) }}"
                                  onsubmit="return confirm('Delete \'{{ addslashes($course->title) }}\'? This cannot be undone.');">
                                @csrf @method('DELETE')
                                <button type="submit"
                                        class="p-2 rounded-lg text-gray-400 hover:text-red-600 hover:bg-red-50 transition-colors" title="Delete">
                                    <i class="fas fa-trash text-sm"></i>
                                </button>
                            </form>
                        </div>
                    </td>
                </tr>
                @endforeach
            </tbody>
        </table>
    </div>

    @if($courses->hasPages())
    <div class="px-6 py-4 border-t border-gray-100 bg-gray-50">
        {{ $courses->links() }}
    </div>
    @endif
</div>
@endif

@endsection