{% extends "base.html" %}

{% block title %}문서 관리 - AI 문서 처리 서버{% endblock %}

{% block content %}
<div class="card">
    <div class="card-header">
        <h1 class="card-title">
            <i class="fas fa-folder-open"></i> 문서 관리
        </h1>
        <p class="card-subtitle">처리된 문서들을 확인하고 관리하세요</p>
    </div>

    <!-- 통계 요약 -->
    <div class="grid grid-3 mb-4">
        <div class="card">
            <h3><i class="fas fa-file-alt"></i> 총 문서 수</h3>
            <div class="stat-number">{{ documents|length }}</div>
        </div>
        <div class="card">
            <h3><i class="fas fa-database"></i> 총 용량</h3>
            <div class="stat-number" id="totalSize">계산 중...</div>
        </div>
        <div class="card">
            <h3><i class="fas fa-calendar"></i> 최근 업로드</h3>
            <div class="stat-number">
                {% if documents %}
                    {{ documents[0].created.split(' ')[0] }}
                {% else %}
                    없음
                {% endif %}
            </div>
        </div>
    </div>

    <!-- 검색 및 필터 -->
    <div class="search-controls mb-4">
        <div class="grid grid-2">
            <div>
                <input type="text" class="form-control" id="searchInput" 
                       placeholder="파일명으로 검색..." onkeyup="filterDocuments()">
            </div>
            <div>
                <select class="form-control" id="sortSelect" onchange="sortDocuments()">
                    <option value="name">이름순</option>
                    <option value="date" selected>날짜순 (최신)</option>
                    <option value="size">크기순</option>
                </select>
            </div>
        </div>
    </div>

    <!-- 문서 목록 -->
    {% if documents %}
    <div class="table-responsive">
        <table class="table" id="documentsTable">
            <thead>
                <tr>
                    <th><i class="fas fa-file"></i> 파일명</th>
                    <th><i class="fas fa-calendar"></i> 생성일시</th>
                    <th><i class="fas fa-weight"></i> 크기</th>
                    <th><i class="fas fa-cogs"></i> 액션</th>
                </tr>
            </thead>
            <tbody>
                {% for doc in documents %}
                <tr class="document-row" data-name="{{ doc.name|lower }}" data-date="{{ doc.created }}" data-size="{{ doc.size }}">
                    <td>
                        <div class="file-info">
                            <i class="fas fa-file-alt text-primary"></i>
                            <strong>{{ doc.name }}</strong>
                            <br>
                            <small class="text-muted">{{ formatFileSize(doc.size) }}</small>
                        </div>
                    </td>
                    <td>{{ doc.created }}</td>
                    <td>
                        <span class="file-size" data-bytes="{{ doc.size }}">{{ formatFileSize(doc.size) }}</span>
                    </td>
                    <td>
                        <div class="action-buttons">
                            <a href="/html/{{ doc.name }}" class="btn btn-sm btn-primary" target="_blank" title="HTML 보기">
                                <i class="fas fa-eye"></i>
                            </a>
                            <button onclick="openChatWithDoc('{{ doc.name }}')" class="btn btn-sm btn-success" title="이 문서로 대화하기">
                                <i class="fas fa-comments"></i>
                            </button>
                            <button onclick="downloadDoc('{{ doc.name }}')" class="btn btn-sm btn-secondary" title="다운로드">
                                <i class="fas fa-download"></i>
                            </button>
                            <button onclick="deleteDoc('{{ doc.name }}')" class="btn btn-sm btn-danger" title="삭제">
                                <i class="fas fa-trash"></i>
                            </button>
                        </div>
                    </td>
                </tr>
                {% endfor %}
            </tbody>
        </table>
    </div>
    {% else %}
    <div class="empty-state">
        <i class="fas fa-inbox fa-4x text-muted mb-3"></i>
        <h3>처리된 문서가 없습니다</h3>
        <p class="text-muted mb-4">파일을 업로드하여 AI 처리를 시작하세요.</p>
        <a href="/upload" class="btn btn-primary btn-lg">
            <i class="fas fa-cloud-upload-alt"></i> 첫 문서 업로드하기
        </a>
    </div>
    {% endif %}
</div>

<!-- 파일 미리보기 모달 -->
<div class="modal" id="previewModal" style="display: none;">
    <div class="modal-content">
        <div class="modal-header">
            <h3 id="previewTitle">문서 미리보기</h3>
            <button onclick="closePreview()" class="btn btn-sm btn-secondary">
                <i class="fas fa-times"></i> 닫기
            </button>
        </div>
        <div class="modal-body">
            <iframe id="previewFrame" style="width: 100%; height: 500px; border: none;"></iframe>
        </div>
    </div>
</div>

<style>
.search-controls {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.file-info i {
    font-size: 1.2rem;
}

.action-buttons {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 10px;
    width: 90%;
    max-width: 900px;
    max-height: 90%;
    overflow: hidden;
}

.modal-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 1.5rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
    margin-top: 0.5rem;
}

.mb-4 { margin-bottom: 2rem; }
.text-primary { color: #667eea; }
</style>
{% endblock %}

{% block scripts %}
<script>
let allDocuments = [];

// 페이지 로드 시 초기화
document.addEventListener('DOMContentLoaded', function() {
    // 문서 데이터 수집
    const rows = document.querySelectorAll('.document-row');
    allDocuments = Array.from(rows).map(row => ({
        element: row,
        name: row.dataset.name,
        date: new Date(row.dataset.date),
        size: parseInt(row.dataset.size)
    }));
    
    // 총 용량 계산
    const totalBytes = allDocuments.reduce((sum, doc) => sum + doc.size, 0);
    document.getElementById('totalSize').textContent = formatFileSize(totalBytes);
    
    // 기본 정렬 (날짜순)
    sortDocuments();
});

// 파일 크기 포맷팅
function formatFileSize(bytes) {
    if (bytes === 0) return '0 Bytes';
    const k = 1024;
    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}

// 문서 검색 필터링
function filterDocuments() {
    const searchTerm = document.getElementById('searchInput').value.toLowerCase();
    const rows = document.querySelectorAll('.document-row');
    
    rows.forEach(row => {
        const fileName = row.dataset.name;
        if (fileName.includes(searchTerm)) {
            row.style.display = '';
        } else {
            row.style.display = 'none';
        }
    });
}

// 문서 정렬
function sortDocuments() {
    const sortBy = document.getElementById('sortSelect').value;
    const tbody = document.querySelector('#documentsTable tbody');
    
    allDocuments.sort((a, b) => {
        switch (sortBy) {
            case 'name':
                return a.name.localeCompare(b.name);
            case 'date':
                return b.date - a.date; // 최신순
            case 'size':
                return b.size - a.size; // 큰 것부터
            default:
                return 0;
        }
    });
    
    // DOM 재정렬
    allDocuments.forEach(doc => {
        tbody.appendChild(doc.element);
    });
}

// 문서로 채팅 시작
function openChatWithDoc(fileName) {
    const docName = fileName.replace('.html', '');
    window.location.href = `/chat?doc=${encodeURIComponent(docName)}`;
}

// 문서 다운로드
function downloadDoc(fileName) {
    const link = document.createElement('a');
    link.href = `/html/${fileName}`;
    link.download = fileName;
    link.click();
}

// 문서 삭제
async function deleteDoc(fileName) {
    if (!confirm(`정말로 "${fileName}" 문서를 삭제하시겠습니까?`)) {
        return;
    }
    
    try {
        // 실제로는 DELETE API를 구현해야 함
        showToast('삭제 기능은 아직 구현되지 않았습니다.', 'info');
        // TODO: DELETE /api/documents/{fileName} 구현
    } catch (error) {
        console.error('Delete error:', error);
        showToast('삭제 중 오류가 발생했습니다.', 'danger');
    }
}

// 미리보기 열기
function openPreview(fileName) {
    document.getElementById('previewTitle').textContent = `${fileName} 미리보기`;
    document.getElementById('previewFrame').src = `/html/${fileName}`;
    document.getElementById('previewModal').style.display = 'flex';
}

// 미리보기 닫기
function closePreview() {
    document.getElementById('previewModal').style.display = 'none';
    document.getElementById('previewFrame').src = '';
}

// 토스트 알림 (main.js에서 가져옴)
function showToast(message, type = 'info') {
    const toast = document.createElement('div');
    toast.className = `alert alert-${type}`;
    toast.textContent = message;
    toast.style.cssText = `
        position: fixed;
        top: 20px;
        right: 20px;
        z-index: 1001;
        min-width: 300px;
        animation: slideIn 0.3s ease;
    `;
    
    document.body.appendChild(toast);
    
    setTimeout(() => {
        toast.style.animation = 'slideOut 0.3s ease';
        setTimeout(() => {
            if (document.body.contains(toast)) {
                document.body.removeChild(toast);
            }
        }, 300);
    }, 3000);
}
</script>
{% endblock %}