{% extends "base.html" %}

{% block title %}逐鹿导航 - 导入预览{% endblock %}

{% block head %}
{{ super() }}
<!-- 确保 jQuery 和 Bootstrap JS 正确加载 -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
{% endblock %}

{% block content %}
<div class="row">
    <div class="col-md-12">
        <div class="card">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h4>书签导入预览</h4>
                <div>
                    <span class="badge bg-primary">总计: {{ preview_data.total_count }} 个书签</span>
                </div>
            </div>
            <div class="card-body">
                <!-- 统计信息 -->
                <div class="row mb-4">
                    <div class="col-md-3">
                        <div class="card text-white bg-success">
                            <div class="card-body text-center">
                                <h4>{{ preview_data.folders | sum(attribute='new_count') }}</h4>
                                <p>新书签</p>
                            </div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="card text-white bg-warning">
                            <div class="card-body text-center">
                                <h4>{{ preview_data.folders | sum(attribute='duplicate_count') }}</h4>
                                <p>重复书签</p>
                            </div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="card text-white bg-info">
                            <div class="card-body text-center">
                                <h4>{{ preview_data.folders | length }}</h4>
                                <p>分类数量</p>
                            </div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="card">
                            <div class="card-body text-center">
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" id="selectAll" checked>
                                    <label class="form-check-label" for="selectAll">全选</label>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>

                <!-- 书签预览 -->
                <form id="previewForm">
                    {% for folder in preview_data.folders %}
                    <div class="card mb-3">
                        <div class="card-header">
                            <h5 class="mb-0">
                                <span class="badge bg-secondary me-2">{{ folder.bookmarks | length }}</span>
                                {{ folder.name }}
                                <small class="text-muted">
                                    (新: {{ folder.new_count }}, 重复: {{ folder.duplicate_count }})
                                </small>
                            </h5>
                        </div>
                        <div class="card-body">
                            <div class="table-responsive">
                                <table class="table table-hover">
                                    <thead>
                                        <tr>
                                            <th width="30">
                                                <input type="checkbox" class="folder-select"
                                                       data-folder="{{ folder.name }}" checked>
                                            </th>
                                            <th width="40%">名称</th>
                                            <th width="40%">网址</th>
                                            <th width="20%">分类</th>
                                            <th width="80">状态</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        {% for bookmark in folder.bookmarks %}
                                        <tr class="{% if bookmark.is_duplicate %}table-warning{% endif %}">
                                            <td>
                                                <input type="checkbox" name="selected_bookmarks"
                                                       value="{{ loop.index0 }}"
                                                       data-folder="{{ folder.name }}"
                                                       {% if bookmark.selected %}checked{% endif %}
                                                       class="bookmark-check">
                                            </td>
                                            <td>
                                                <input type="text" class="form-control form-control-sm bookmark-name"
                                                       value="{{ bookmark.name }}"
                                                       data-original="{{ bookmark.name }}">
                                            </td>
                                            <td>
                                                <input type="text" class="form-control form-control-sm bookmark-url"
                                                       value="{{ bookmark.url }}"
                                                       data-original="{{ bookmark.url }}">
                                                {% if bookmark.description %}
                                                <small class="text-muted">{{ bookmark.description }}</small>
                                                {% endif %}
                                            </td>
                                            <td>
                                                <select class="form-select form-select-sm bookmark-category">
                                                    <option value="{{ folder.name }}">{{ folder.name }}</option>
                                                    {% for category in user_categories %}
                                                    <option value="{{ category.name }}">{{ category.name }}</option>
                                                    {% endfor %}
                                                    <option value="_custom">自定义...</option>
                                                </select>
                                                <input type="text" class="form-control form-control-sm mt-1 custom-category"
                                                       placeholder="输入分类名称" style="display: none;">
                                            </td>
                                            <td>
                                                {% if bookmark.is_duplicate %}
                                                <span class="badge bg-warning">重复</span>
                                                {% else %}
                                                <span class="badge bg-success">新</span>
                                                {% endif %}
                                            </td>
                                        </tr>
                                        {% endfor %}
                                    </tbody>
                                </table>
                            </div>
                        </div>
                    </div>
                    {% endfor %}
                </form>

                <!-- 操作按钮 -->
                <div class="d-flex justify-content-between mt-4">
                    <a href="{{ url_for('import_bookmarks') }}" class="btn btn-secondary">
                        <i class="fas fa-arrow-left"></i> 重新上传
                    </a>
                    <button type="button" id="startImport" class="btn btn-success">
                        <i class="fas fa-download"></i> 开始导入
                    </button>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- 导入进度模态框 -->
<div class="modal fade" id="importProgressModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">正在导入书签</h5>
            </div>
            <div class="modal-body">
                <div class="progress mb-3">
                    <div class="progress-bar progress-bar-striped progress-bar-animated"
                         role="progressbar" style="width: 0%"></div>
                </div>
                <div class="import-status">
                    <p>准备开始导入...</p>
                </div>
                <div class="import-results" style="display: none;">
                    <h6>导入结果:</h6>
                    <ul class="list-unstyled"></ul>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal" id="cancelBtn" style="display: none;">取消</button>
                <button type="button" class="btn btn-primary" data-bs-dismiss="modal" id="completeBtn" style="display: none;">完成</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
// 检查 jQuery 和 Bootstrap 是否已加载
function checkDependencies() {
    if (typeof jQuery === 'undefined') {
        console.error('jQuery 未加载，正在动态加载...');
        // 动态加载 jQuery
        var script = document.createElement('script');
        script.src = 'https://code.jquery.com/jquery-3.6.0.min.js';
        script.onload = function() {
            console.log('jQuery 动态加载完成');
            // 加载 Bootstrap JS
            loadBootstrap();
        };
        document.head.appendChild(script);
    } else {
        console.log('jQuery 已加载');
        // 检查 Bootstrap
        if (typeof bootstrap === 'undefined') {
            loadBootstrap();
        } else {
            console.log('Bootstrap 已加载');
            initializePage();
        }
    }
}

function loadBootstrap() {
    console.log('正在加载 Bootstrap JS...');
    var script = document.createElement('script');
    script.src = 'https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js';
    script.onload = function() {
        console.log('Bootstrap JS 动态加载完成');
        initializePage();
    };
    script.onerror = function() {
        console.error('Bootstrap JS 加载失败');
        // 即使 Bootstrap 加载失败，也尝试初始化页面
        initializePage();
    };
    document.head.appendChild(script);
}

function initializePage() {
    console.log('页面初始化开始');

    // 检查 Bootstrap modal 是否可用
    if (typeof bootstrap !== 'undefined' && bootstrap.Modal) {
        console.log('Bootstrap Modal 可用');
    } else {
        console.warn('Bootstrap Modal 不可用，将使用备用方案');
    }

    // 全选/全不选
    $('#selectAll').change(function() {
        $('.bookmark-check').prop('checked', this.checked);
        updateSelectionCount();
    });

    // 文件夹选择
    $('.folder-select').change(function() {
        const folder = $(this).data('folder');
        $(`.bookmark-check[data-folder="${folder}"]`).prop('checked', this.checked);
        updateSelectionCount();
    });

    // 单个书签选择
    $('.bookmark-check').change(updateSelectionCount);

    // 分类选择
    $('.bookmark-category').change(function() {
        const customInput = $(this).closest('td').find('.custom-category');
        if ($(this).val() === '_custom') {
            customInput.show();
        } else {
            customInput.hide();
        }
    });

    // 开始导入
    $('#startImport').click(function() {
        console.log('开始导入按钮被点击');
        const selectedBookmarks = prepareImportData();
        console.log('选中的书签:', selectedBookmarks);

        if (selectedBookmarks.length === 0) {
            alert('请至少选择一个书签进行导入');
            return;
        }

        // 使用 Bootstrap Modal 或备用方案
        try {
            // 尝试使用 Bootstrap Modal
            if (typeof bootstrap !== 'undefined' && bootstrap.Modal) {
                var modalElement = document.getElementById('importProgressModal');
                var modal = new bootstrap.Modal(modalElement);
                modal.show();
            } else {
                // 备用方案：直接显示模态框
                $('#importProgressModal').show();
                $('body').addClass('modal-open');
            }
        } catch (error) {
            console.error('显示模态框失败:', error);
            // 备用方案：直接显示模态框
            $('#importProgressModal').show();
            $('body').addClass('modal-open');
        }

        startImport(selectedBookmarks);
    });

    function updateSelectionCount() {
        const selectedCount = $('.bookmark-check:checked').length;
        const totalCount = $('.bookmark-check').length;
        $('#selectAll').prop('checked', selectedCount === totalCount);
        console.log('已选择书签数量:', selectedCount, '/', totalCount);
    }

    function prepareImportData() {
        const selectedBookmarks = [];

        $('.bookmark-check:checked').each(function() {
            const row = $(this).closest('tr');
            const folder = $(this).data('folder');
            const name = row.find('.bookmark-name').val();
            const url = row.find('.bookmark-url').val();
            const categorySelect = row.find('.bookmark-category');
            let category = categorySelect.val();

            if (category === '_custom') {
                category = row.find('.custom-category').val() || folder;
            }

            selectedBookmarks.push({
                name: name,
                url: url,
                folder: folder,
                custom_category: category !== folder ? category : null
            });
        });

        return selectedBookmarks;
    }

    function startImport(bookmarks) {
        const importData = {
            selected_bookmarks: bookmarks,
            import_as_public: {{ preview_data.import_as_public | tojson }}
        };

        console.log('开始导入，数据:', importData);

        // 开始导入
        $.ajax({
            url: '/api/import-bookmarks',
            method: 'POST',
            contentType: 'application/json',
            data: JSON.stringify(importData),
            success: function(response) {
                console.log('导入启动响应:', response);
                if (response.status === 'started') {
                    monitorProgress(response.import_id);
                } else {
                    console.error('导入启动失败:', response);
                    updateProgress('导入启动失败: ' + (response.error || '未知错误'), 0, true);
                }
            },
            error: function(xhr, status, error) {
                console.error('AJAX错误:', status, error, xhr.responseText);
                updateProgress('导入启动失败: ' + error, 0, true);
            }
        });
    }

    function monitorProgress(importId) {
        console.log('开始监控进度:', importId);

        const progressBar = $('.progress-bar');
        const statusText = $('.import-status');
        const resultsDiv = $('.import-results');
        const resultsList = $('.import-results ul');
        const cancelBtn = $('#cancelBtn');
        const completeBtn = $('#completeBtn');

        let checkCount = 0;
        const maxChecks = 300;

        function checkProgress() {
            if (checkCount >= maxChecks) {
                console.log('进度检查超时');
                updateProgress('导入超时', 0, true);
                return;
            }

            const progressUrl = '/api/import-progress/' + importId;
            console.log('查询进度:', progressUrl);

            $.get(progressUrl)
                .done(function(data) {
                    console.log('进度响应:', data);

                    if (data.error) {
                        console.error('进度查询错误:', data.error);
                        updateProgress('导入任务不存在: ' + data.error, 0, true);
                        return;
                    }

                    const percent = data.total > 0 ? Math.round((data.processed / data.total) * 100) : 0;

                    progressBar.css('width', percent + '%');
                    progressBar.text(percent + '%');

                    statusText.html(`
                        <p>进度: ${data.processed}/${data.total} (${percent}%)</p>
                        <p>状态: ${data.status}</p>
                        <p>成功: ${data.results.success} | 失败: ${data.results.failed}</p>
                    `);

                    if (data.status === 'completed' || data.status === 'failed') {
                        console.log('导入完成，状态:', data.status);

                        // 显示结果
                        resultsDiv.show();
                        resultsList.empty();

                        if (data.results.errors && data.results.errors.length > 0) {
                            data.results.errors.forEach(error => {
                                resultsList.append(`<li class="text-danger">${error}</li>`);
                            });
                        }

                        if (data.results.success > 0) {
                            resultsList.prepend(`<li class="text-success">成功导入 ${data.results.success} 个书签</li>`);
                        }

                        cancelBtn.hide();
                        completeBtn.show();
                        progressBar.removeClass('progress-bar-animated');

                        if (data.status === 'completed') {
                            progressBar.removeClass('bg-warning').addClass('bg-success');
                            // 3秒后自动跳转
                            setTimeout(function() {
                                window.location.href = "/dashboard";
                            }, 3000);
                        } else {
                            progressBar.removeClass('bg-success').addClass('bg-danger');
                        }
                    } else {
                        // 继续检查进度
                        setTimeout(checkProgress, 1000);
                        checkCount++;
                    }
                })
                .fail(function(xhr, status, error) {
                    console.error('进度查询失败:', status, error, xhr.responseText);
                    updateProgress('进度查询失败: ' + error, 0, true);
                });
        }

        cancelBtn.show().off('click').click(function() {
            console.log('用户取消导入');
            try {
                if (typeof bootstrap !== 'undefined' && bootstrap.Modal) {
                    var modalElement = document.getElementById('importProgressModal');
                    var modal = bootstrap.Modal.getInstance(modalElement);
                    modal.hide();
                } else {
                    $('#importProgressModal').hide();
                    $('body').removeClass('modal-open');
                }
            } catch (error) {
                $('#importProgressModal').hide();
                $('body').removeClass('modal-open');
            }
        });

        completeBtn.click(function() {
            console.log('用户确认完成');
            window.location.href = "/dashboard";
        });

        checkProgress();
    }

    function updateProgress(message, percent, isError) {
        const progressBar = $('.progress-bar');
        const statusText = $('.import-status');

        progressBar.css('width', percent + '%').text(percent + '%');
        statusText.html(`<p class="${isError ? 'text-danger' : ''}">${message}</p>`);

        if (isError) {
            progressBar.removeClass('bg-success progress-bar-animated').addClass('bg-danger');
            $('#completeBtn').show();
            $('#cancelBtn').hide();
        }
    }

    updateSelectionCount();
    console.log('页面初始化完成');
}

// 页面加载完成后检查依赖并初始化
if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', checkDependencies);
} else {
    checkDependencies();
}
</script>
{% endblock %}