@extends('layouts.app')

@section('title', '결재함')

@section('content')
    <div class="flex flex-col sm:flex-row sm:justify-between sm:items-center gap-4 mb-6">
        <h1 class="text-2xl font-bold text-gray-800">결재함</h1>
    </div>

    <x-filter-collapsible id="filterForm">
        <form id="filterForm" class="flex flex-wrap gap-2 sm:gap-4">
            <div class="flex-1 min-w-0 w-full sm:w-auto">
                <input type="text" name="search" placeholder="제목, 문서번호 검색..."
                       class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500">
            </div>
            <button type="submit" class="bg-gray-600 hover:bg-gray-700 text-white px-6 py-2 rounded-lg transition w-full sm:w-auto">
                검색
            </button>
        </form>
    </x-filter-collapsible>

    <div id="approval-table" class="bg-white rounded-lg shadow-sm overflow-hidden">
        <div class="flex justify-center items-center p-12">
            <div class="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600"></div>
        </div>
    </div>

    <div id="pagination-area" class="mt-4"></div>
@endsection

@push('scripts')
<script>
document.addEventListener('DOMContentLoaded', function() {
    loadPending();
    document.getElementById('filterForm').addEventListener('submit', function(e) {
        e.preventDefault();
        loadPending();
    });
});

function loadPending(page = 1) {
    const form = document.getElementById('filterForm');
    const params = new URLSearchParams(new FormData(form));
    params.set('page', page);
    params.set('per_page', 15);

    fetch(`/api/admin/approvals/pending?${params}`, {
        headers: { 'Accept': 'application/json', 'X-CSRF-TOKEN': '{{ csrf_token() }}' }
    })
    .then(r => r.json())
    .then(data => renderTable(data.data || [], data))
    .catch(() => {
        document.getElementById('approval-table').innerHTML = '<div class="p-8 text-center text-gray-500">데이터를 불러올 수 없습니다.</div>';
    });
}

function renderTable(items, pagination) {
    const container = document.getElementById('approval-table');

    if (!items.length) {
        container.innerHTML = '<div class="p-8 text-center text-gray-500">결재 대기 문서가 없습니다.</div>';
        document.getElementById('pagination-area').innerHTML = '';
        return;
    }

    let html = `<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">문서번호</th>
                    <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">제목</th>
                    <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">기안자</th>
                    <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">양식</th>
                    <th class="px-4 py-3 text-center text-xs font-medium text-gray-500 uppercase">긴급</th>
                    <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">기안일</th>
                </tr>
            </thead>
            <tbody class="bg-white divide-y divide-gray-200">`;

    items.forEach(item => {
        const draftedAt = item.drafted_at ? new Date(item.drafted_at).toLocaleDateString('ko-KR') : '-';
        const urgent = item.is_urgent ? '<span class="text-red-500 font-bold text-xs">긴급</span>' : '';

        html += `<tr class="hover:bg-gray-50 cursor-pointer" onclick="location.href='/approval-mgmt/${item.id}'">
            <td class="px-4 py-3 text-sm text-gray-600 whitespace-nowrap">${item.document_number || '-'}</td>
            <td class="px-4 py-3 text-sm text-gray-800 font-medium">${item.title || '-'}</td>
            <td class="px-4 py-3 text-sm text-gray-600">${item.drafter?.name || '-'}</td>
            <td class="px-4 py-3 text-sm text-gray-600">${item.form?.name || '-'}</td>
            <td class="px-4 py-3 text-center">${urgent}</td>
            <td class="px-4 py-3 text-sm text-gray-500 whitespace-nowrap">${draftedAt}</td>
        </tr>`;
    });

    html += '</tbody></table></div>';
    container.innerHTML = html;

    // 페이지네이션
    const area = document.getElementById('pagination-area');
    if (!pagination.last_page || pagination.last_page <= 1) { area.innerHTML = ''; return; }
    let pHtml = '<div class="flex justify-center gap-1">';
    for (let i = 1; i <= pagination.last_page; i++) {
        const active = i === pagination.current_page ? 'bg-blue-600 text-white' : 'bg-white text-gray-700 hover:bg-gray-100';
        pHtml += `<button onclick="loadPending(${i})" class="px-3 py-1 rounded border text-sm ${active}">${i}</button>`;
    }
    pHtml += '</div>';
    area.innerHTML = pHtml;
}
</script>
@endpush
