{% extends "base.html" %}

{% block title %}导出卡密 - 软件授权管理系统{% endblock %}

{% block page_title %}导出卡密{% endblock %}

{% block page_actions %}
<a href="{{ url_for('web.licenses') }}" class="btn btn-outline-secondary">
    <i class="fas fa-arrow-left me-2"></i>
    返回列表
</a>
{% endblock %}

{% block content %}
<div class="row">
    <div class="col-lg-8">
        <div class="card shadow">
            <div class="card-body">
                <form id="export-form">
                    <div class="mb-3">
                        <label for="product_id" class="form-label">选择产品</label>
                        <select class="form-select" id="product_id" name="product_id">
                            <option value="">全部产品</option>
                            {% for product in products %}
                            <option value="{{ product.product_id }}">{{ product.product_name }}</option>
                            {% endfor %}
                        </select>
                    </div>
                    
                    <div class="mb-3">
                        <label for="status" class="form-label">卡密状态</label>
                        <select class="form-select" id="status" name="status">
                            <option value="">全部状态</option>
                            <option value="0">未激活</option>
                            <option value="1">已激活</option>
                            <option value="2">已过期</option>
                            <option value="3">已禁用</option>
                        </select>
                    </div>
                    
                    <div class="mb-3">
                        <label for="type" class="form-label">卡密类型</label>
                        <select class="form-select" id="type" name="type">
                            <option value="">全部类型</option>
                            <option value="1">正式卡密</option>
                            <option value="0">试用卡密</option>
                        </select>
                    </div>
                    
                    <div class="mb-3">
                        <label for="format" class="form-label">导出格式 *</label>
                        <select class="form-select" id="format" name="format" required>
                            <option value="excel">Excel (.xlsx)</option>
                            <option value="csv">CSV (.csv)</option>
                        </select>
                    </div>
                    
                    <button type="submit" class="btn btn-success" id="submit-btn">
                        <i class="fas fa-file-export me-2"></i>
                        <span id="submit-text">导出卡密</span>
                    </button>
                    <a href="{{ url_for('web.licenses') }}" class="btn btn-secondary">取消</a>
                </form>
            </div>
        </div>
    </div>
    
    <div class="col-lg-4">
        <div class="card shadow">
            <div class="card-header">
                <h6 class="mb-0">导出说明</h6>
            </div>
            <div class="card-body">
                <ul class="list-unstyled">
                    <li class="mb-2">
                        <i class="fas fa-info-circle text-primary me-2"></i>
                        <small>可以选择特定产品、状态和类型的卡密进行导出</small>
                    </li>
                    <li class="mb-2">
                        <i class="fas fa-info-circle text-primary me-2"></i>
                        <small>导出格式支持Excel和CSV两种</small>
                    </li>
                    <li class="mb-2">
                        <i class="fas fa-info-circle text-primary me-2"></i>
                        <small>导出的文件包含卡密、产品、状态、有效期等详细信息</small>
                    </li>
                    <li class="mb-2">
                        <i class="fas fa-info-circle text-primary me-2"></i>
                        <small>导出操作可能需要一些时间，请耐心等待</small>
                    </li>
                </ul>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
// 页面加载完成后初始化
document.addEventListener('DOMContentLoaded', function() {
    initEventListeners();
});

// 初始化事件监听器
function initEventListeners() {
    // 表单提交
    document.getElementById('export-form').addEventListener('submit', function(e) {
        e.preventDefault();
        exportLicenses();
    });
}

// 导出卡密
function exportLicenses() {
    const submitBtn = document.getElementById('submit-btn');
    const submitText = document.getElementById('submit-text');
    
    // 获取表单数据
    const formData = {
        product_id: document.getElementById('product_id').value || null,
        status: document.getElementById('status').value ? parseInt(document.getElementById('status').value) : null,
        type: document.getElementById('type').value ? parseInt(document.getElementById('type').value) : null,
        format: document.getElementById('format').value
    };
    
    // 显示加载状态
    submitBtn.disabled = true;
    submitText.textContent = '导出中...';
    showLoading();
    
    // 构建API URL（复用base.html中的URL构建逻辑）
    let apiUrl = '/api/v1/licenses/export';
    const frontendDomain = window.FRONTEND_DOMAIN || '';
    
    if (apiUrl.startsWith('/')) {
        if (frontendDomain && !apiUrl.startsWith(frontendDomain)) {
            let cleanDomain = frontendDomain;
            try {
                const urlObj = new URL(frontendDomain.startsWith('http') ? frontendDomain : 'http://' + frontendDomain);
                cleanDomain = urlObj.origin;
            } catch (e) {
                if (frontendDomain.includes('/')) {
                    cleanDomain = frontendDomain.split('/')[0];
                }
            }
            apiUrl = cleanDomain + apiUrl;
        } else if (!frontendDomain) {
            apiUrl = window.location.origin + apiUrl;
        }
    }
    
    // 直接使用fetch处理文件下载，不使用apiRequest（因为apiRequest会尝试解析JSON）
    fetch(apiUrl, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        credentials: 'same-origin',
        body: JSON.stringify(formData)
    })
    .then(response => {
        hideLoading();
        
        // 检查响应状态
        if (!response.ok) {
            // 处理错误响应
            if (response.status === 401) {
                showNotification('会话已过期，请重新登录', 'warning');
                setTimeout(() => {
                    window.location.href = '/login';
                }, 1500);
                throw new Error('未授权访问');
            } else if (response.status === 403) {
                return response.json().then(errorData => {
                    showNotification(errorData.message || '权限不足，无法执行此操作', 'error');
                    throw new Error(`403: ${errorData.message || '权限不足'}`);
                }).catch(() => {
                    showNotification('权限不足，无法执行此操作', 'error');
                    throw new Error('403: 权限不足');
                });
            } else {
                // 尝试解析错误信息
                return response.json().then(errorData => {
                    showNotification(errorData.message || `导出失败: ${response.statusText}`, 'error');
                    throw new Error(`${response.status}: ${errorData.message || response.statusText}`);
                }).catch(() => {
                    showNotification(`导出失败: ${response.statusText}`, 'error');
                    throw new Error(`${response.status}: ${response.statusText}`);
                });
            }
        }
        
        // 成功响应，处理文件下载
        // 获取文件名
        const contentDisposition = response.headers.get('Content-Disposition');
        let filename = 'licenses.xlsx';
        if (contentDisposition) {
            const filenameMatch = contentDisposition.match(/filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/);
            if (filenameMatch && filenameMatch[1]) {
                filename = filenameMatch[1].replace(/['"]/g, '');
                // 处理URL编码的文件名
                try {
                    filename = decodeURIComponent(filename);
                } catch (e) {
                    // 如果解码失败，使用原始文件名
                }
            }
        }
        
        // 下载文件
        return response.blob().then(blob => {
            const url = window.URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = filename;
            document.body.appendChild(a);
            a.click();
            a.remove();
            window.URL.revokeObjectURL(url);
            
            showNotification('导出成功', 'success');
        });
    })
    .catch(error => {
        hideLoading();
        console.error('Failed to export licenses:', error);
        // 如果错误消息不是我们自定义的，显示通用错误消息
        if (error.message && !error.message.includes(':')) {
            showNotification('导出失败: ' + error.message, 'error');
        } else if (!error.message.includes('未授权') && !error.message.includes('权限不足')) {
            showNotification('导出失败，请稍后重试', 'error');
        }
    })
    .finally(() => {
        // 恢复按钮状态
        submitBtn.disabled = false;
        submitText.textContent = '导出卡密';
    });
}
</script>
{% endblock %}