"""
title: 📊 智能信息图 (AntV Infographic)
author: jeff
author_url: https://github.com/Fu-Jie/awesome-openwebui
icon_url: data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0IiBmaWxsPSJub25lIiBzdHJva2U9ImN1cnJlbnRDb2xvciIgc3Ryb2tlLXdpZHRoPSIyIiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiPgogIDxsaW5lIHgxPSIxMiIgeTE9IjIwIiB4Mj0iMTIiIHkyPSIxMCIgLz4KICA8bGluZSB4MT0iMTgiIHkxPSIyMCIgeDI9IjE4IiB5Mj0iNCIgLz4KICA8bGluZSB4MT0iNiIgeTE9IjIwIiB4Mj0iNiIgeTI9IjE2IiAvPgo8L3N2Zz4=
version: 1.3.2
description: 基于 AntV Infographic 的智能信息图生成插件。支持多种专业模板，自动图标匹配，并提供 SVG/PNG 下载功能。
"""

from pydantic import BaseModel, Field
from typing import Optional, Dict, Any
import logging
import time
import re
from fastapi import Request
from datetime import datetime

from open_webui.utils.chat import generate_chat_completion
from open_webui.models.users import Users

logging.basicConfig(
    level=logging.INFO, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s"
)
logger = logging.getLogger(__name__)

# =================================================================
# LLM 提示词
# =================================================================

SYSTEM_PROMPT_INFOGRAPHIC_ASSISTANT = """
You are a professional infographic design expert who can analyze user-provided text content and convert it into AntV Infographic syntax format.

## Infographic Syntax Specification

Infographic syntax is a Mermaid-like declarative syntax for describing infographic templates, data, and themes.

### Syntax Rules
- Entry uses `infographic <template-name>`
- Key-value pairs are separated by spaces, **absolutely NO colons allowed**
- Use two spaces for indentation
- Object arrays use `-` with line breaks

⚠️ **IMPORTANT WARNING: This is NOT YAML format!**
- ❌ Wrong: `children:` `items:` `data:` (with colons)
- ✅ Correct: `children` `items` `data` (without colons)

### Template Library & Selection Guide

#### 1. List & Hierarchy (Text-heavy)
-   **Linear & Short (Steps/Phases)** -> `list-row-horizontal-icon-arrow`
-   **Linear & Long (Rankings/Details)** -> `list-vertical`
-   **Grouped / Parallel (Features/Catalog)** -> `list-grid`
-   **Hierarchical (Org Chart/Taxonomy)** -> `tree-vertical` or `tree-horizontal`
-   **Central Idea (Brainstorming)** -> `mindmap`

#### 2. Sequence & Relationship (Flow-based)
-   **Time-based (History/Plan)** -> `sequence-roadmap-vertical-simple`
-   **Process Flow (Complex)** -> `sequence-zigzag` or `sequence-horizontal`
-   **Resource Flow / Distribution** -> `relation-sankey`
-   **Circular Relationship** -> `relation-circle`

#### 3. Comparison & Analysis
-   **Binary Comparison (A vs B)** -> `compare-binary`
-   **SWOT Analysis** -> `compare-swot`
-   **Quadrant Analysis (Importance vs Urgency)** -> `quadrant-quarter`
-   **Multi-item Grid Comparison** -> `list-grid` (use for comparing multiple items)

#### 4. Charts & Data (Metric-heavy)
-   **Key Metrics / Data Cards** -> `statistic-card`
-   **Distribution / Comparison** -> `chart-bar` or `chart-column`
-   **Trend over Time** -> `chart-line` or `chart-area`
-   **Proportion / Part-to-Whole** -> `chart-pie` or `chart-doughnut`

### Infographic Syntax Guide

#### 1. Structure
-   **Entry**: `infographic <template-name>`
-   **Blocks**: `data`, `theme`, `design` (optional)
-   **Format**: Key-value pairs separated by spaces, 2-space indentation.
-   **Arrays**: Object arrays use `-` (newline), simple arrays use inline values.

#### 2. Data Block (`data`)
-   `title`: Main title
-   `desc`: Subtitle or description
-   `items`: List of data items
-     - `label`: Item title
-     - `value`: Numerical value (required for Charts/Stats)
-     - `desc`: Item description (optional)
-     - `icon`: Icon name (e.g., `mdi/rocket-launch`)
-     - `time`: Time label (Optional, for Roadmap/Sequence)
-     - `children`: Nested items (ONLY for Tree/Mindmap/Sankey/SWOT)
-     - `illus`: Illustration name (ONLY for Quadrant)

#### 3. Theme Block (`theme`)
-   `colorPrimary`: Main color (Hex)
-   `colorBg`: Background color (Hex)
-   `palette`: Color list (Space separated)
-   `textColor`: Text color (Hex)
-   `stylize`: Style effect configuration
-     `type`: Style type (`rough`, `pattern`, `linear-gradient`, `radial-gradient`)

#### 4. Stylize Examples
**Rough Style (Hand-drawn):**
```infographic
infographic list-row-simple-horizontal-arrow
theme
  stylize rough
data
  ...
```

**Gradient Style:**
```infographic
infographic chart-bar
theme
  stylize linear-gradient
data
  ...
```

### Examples

#### Chart (Bar Chart)
infographic chart-bar
data
  title Revenue Growth
  desc Monthly revenue in 2024
  items
    - label Jan
      value 1200
    - label Feb
      value 1500
    - label Mar
      value 1800


#### Comparison (Binary Comparison)
infographic compare-binary
data
  title Advantages vs Disadvantages
  desc Compare two aspects side by side
  items
    - label Advantages
      children
        - label Strong R&D
          desc Leading technology and innovation capability
        - label High customer loyalty
          desc Repurchase rate over 60%
    - label Disadvantages
      children
        - label Weak brand exposure
          desc Insufficient marketing, low awareness
        - label Narrow channel coverage
          desc Limited online channels

#### Comparison (SWOT)
infographic compare-swot
data
  title Project SWOT
  items
    - label Strengths
      children
        - label Strong team
        - label Innovative tech
    - label Weaknesses
      children
        - label Limited budget
    - label Opportunities
      children
        - label Emerging market
    - label Threats
      children
        - label High competition

#### Relationship (Sankey)
infographic relation-sankey
data
  title Energy Flow
  items
    - label Solar
      value 100
      children
        - label Grid
          value 60
        - label Battery
          value 40
    - label Wind
      value 80
      children
        - label Grid
          value 80

#### Quadrant (Importance vs Urgency)
infographic quadrant-quarter
data
  title Task Management
  items
    - label Critical Bug
      desc Fix immediately
      illus mdi/bug
    - label Feature Request
      desc Plan for next sprint
      illus mdi/star

### Output Rules
1.  **Strict Syntax**: Follow the indentation and formatting rules exactly.
2.  **No Explanations**: Output ONLY the syntax code block.
3.  **Language**: Use the user's requested language for content.
"""

USER_PROMPT_GENERATE_INFOGRAPHIC = """
请分析以下文本内容，将其核心信息转换为 AntV Infographic 语法格式。

---
**用户上下文信息:**
用户姓名: {user_name}
当前日期时间: {current_date_time_str}
用户语言: {user_language}
---

**文本内容:**
{long_text_content}

请根据文本特点选择最合适的信息图模板，并输出规范的 infographic 语法。注意保持正确的缩进格式（两个空格）。

**重要提示：** 
- 如果使用 `list-grid` 格式，请确保每个卡片的 `desc` 描述文字控制在 **30个汉字**（或约60个英文字符）**以内**，以保证所有卡片描述都只占用2行，维持视觉一致性。
- 描述应简洁精炼，突出核心要点。
"""

# =================================================================
# HTML 容器模板
# =================================================================

HTML_WRAPPER_TEMPLATE = """
<!-- OPENWEBUI_PLUGIN_OUTPUT -->
<!DOCTYPE html>
<html lang="{user_language}">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        body { 
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
            margin: 0; 
            padding: 10px; 
            background-color: transparent; 
        }
        #main-container { 
            display: flex; 
            flex-wrap: wrap; 
            gap: 20px; 
            align-items: flex-start; 
            width: 100%;
        }
        .plugin-item { 
            flex: 1 1 400px;
            min-width: 300px; 
            border-radius: 12px; 
            overflow: hidden; 
            transition: all 0.3s ease;
        }
        .plugin-item:hover {
            transform: translateY(-2px);
        }
        @media (max-width: 768px) { 
            .plugin-item { flex: 1 1 100%; } 
        }
        /* STYLES_INSERTION_POINT */
    </style>
</head>
<body>
    <div id="main-container">
        <!-- CONTENT_INSERTION_POINT -->
    </div>
    <!-- SCRIPTS_INSERTION_POINT -->
</body>
</html>
"""

# =================================================================
# CSS 样式模板
# =================================================================

CSS_TEMPLATE_INFOGRAPHIC = """
:root {
    --ig-primary-color: #6366f1;
    --ig-secondary-color: #8b5cf6;
    --ig-tertiary-color: #10b981;
    --ig-background-color: #f8fafc;
    --ig-card-bg-color: #ffffff;
    --ig-text-color: #1e293b;
    --ig-muted-text-color: #64748b;
    --ig-border-color: #e2e8f0;
    --ig-header-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
}
.infographic-container-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--ig-text-color);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.infographic-container-wrapper .header {
    background: var(--ig-header-gradient);
    color: white;
    padding: 20px 24px;
    text-align: center;
}
.infographic-container-wrapper .header h1 {
    margin: 0;
    font-size: 1.5em;
    font-weight: 600;
}
.infographic-container-wrapper .user-context {
    font-size: 0.8em;
    color: var(--ig-muted-text-color);
    background-color: #f1f5f9;
    padding: 8px 16px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--ig-border-color);
}
.infographic-container-wrapper .content-area {
    padding: 20px;
    flex-grow: 1;
}
.infographic-container-wrapper .infographic-render-container {
    border-radius: 8px;
    padding: 16px;
    min-height: 600px;
    background: #fff;
    overflow: visible; /* Ensure content is visible */
    transition: height 0.3s ease;
}
.infographic-render-container svg text {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif !important;
}
.infographic-render-container svg foreignObject {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif !important;
    line-height: 1.4 !important;
}
/* 主标题样式 */
.infographic-render-container svg foreignObject[data-element-type="title"] > * {
    font-size: 1.5em !important;
    font-weight: bold !important;
    line-height: 1.4 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}
/* 页面副标题和卡片标题样式 */
.infographic-render-container svg foreignObject[data-element-type="desc"] > *,
.infographic-render-container svg foreignObject[data-element-type="item-label"] > * {
    font-size: 0.6em !important;
    line-height: 1.4 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}
/* 卡片标题额外增加底部间距 */
.infographic-render-container svg foreignObject[data-element-type="item-label"] > * {
    padding-bottom: 8px !important;
    display: block !important;
}
/* 卡片描述文字保持正常换行 */
.infographic-render-container svg foreignObject[data-element-type="item-desc"] > * {
    line-height: 1.4 !important;
    white-space: normal !important;
}
.infographic-container-wrapper .download-area {
    text-align: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid var(--ig-border-color);
}
.infographic-container-wrapper .download-btn {
    background-color: var(--ig-primary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.2s;
    margin: 4px 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.infographic-container-wrapper .download-btn.secondary {
    background-color: var(--ig-secondary-color);
}
.infographic-container-wrapper .download-btn.tertiary {
    background-color: var(--ig-tertiary-color);
}
.infographic-container-wrapper .download-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.infographic-container-wrapper .footer {
    text-align: center;
    padding: 16px;
    font-size: 0.8em;
    color: var(--ig-muted-text-color);
    background-color: #f8fafc;
    border-top: 1px solid var(--ig-border-color);
}
.infographic-container-wrapper .error-message {
    color: #dc2626;
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
}
"""

# =================================================================
# HTML 内容模板
# =================================================================

CONTENT_TEMPLATE_INFOGRAPHIC = """
<div class="infographic-container-wrapper">
    <div class="header">
        <h1>📊 智能信息图</h1>
    </div>
    <div class="user-context">
        <span><strong>用户:</strong> {user_name}</span>
        <span><strong>时间:</strong> {current_date_time_str}</span>
    </div>
    <div class="content-area">
        <div class="infographic-render-container" id="infographic-container-{unique_id}"></div>
        <div class="download-area">
            <button id="download-svg-btn-{unique_id}" class="download-btn">
                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                    <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
                    <polyline points="7 10 12 15 17 10"/>
                    <line x1="12" y1="15" x2="12" y2="3"/>
                </svg>
                <span class="btn-text">下载 SVG</span>
            </button>
            <button id="download-png-btn-{unique_id}" class="download-btn secondary">
                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                    <rect x="3" y="3" width="18" height="18" rx="2" ry="2"/>
                    <circle cx="8.5" cy="8.5" r="1.5"/>
                    <polyline points="21 15 16 10 5 21"/>
                </svg>
                <span class="btn-text">下载 PNG</span>
            </button>
            <button id="download-html-btn-{unique_id}" class="download-btn tertiary">
                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                    <polyline points="16 18 22 12 16 6"/>
                    <polyline points="8 6 2 12 8 18"/>
                </svg>
                <span class="btn-text">下载 HTML</span>
            </button>
        </div>
    </div>
    <div class="footer">
        <p>© {current_year} 信息图 • <a href="https://infographic.antv.vision/" target="_blank" style="display: inline-flex; align-items: center; vertical-align: middle;">
            <svg width="24" height="25" viewBox="0 0 291 300" fill="none" xmlns="http://www.w3.org/2000/svg" style="margin-left: 4px;">
                <g><path d="M140.904 239.376C128.83 239.683 119.675 239.299 115.448 243.843C110.902 248.07 111.288 257.227 110.979 269.302C111.118 274.675 111.118 279.478 111.472 283.52C111.662 285.638 111.95 287.547 112.406 289.224C112.411 289.243 112.416 289.259 112.422 289.28C112.462 289.419 112.496 289.558 112.539 289.691C113.168 291.787 114.088 293.491 115.446 294.758C116.662 296.064 118.283 296.963 120.264 297.59C120.36 297.614 120.464 297.646 120.555 297.675C120.56 297.68 120.56 297.68 120.566 297.68C120.848 297.768 121.142 297.846 121.443 297.923C121.454 297.923 121.464 297.928 121.478 297.934C122.875 298.272 124.424 298.507 126.11 298.678C126.326 298.696 126.542 298.718 126.763 298.739C130.79 299.086 135.558 299.088 140.904 299.222C152.974 298.912 162.128 299.302 166.36 294.758C170.904 290.526 170.515 281.371 170.824 269.302C170.515 257.227 170.907 248.07 166.36 243.843C162.131 239.299 152.974 239.683 140.904 239.376Z" fill="#FF6376"></path><path d="M21.2155 128.398C12.6555 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            </svg>
        </a></p>
    </div>
</div>

<script type="text/template" id="infographic-source-{unique_id}">{infographic_syntax}</script>
"""

# =================================================================
# JavaScript 渲染脚本
# =================================================================

SCRIPT_TEMPLATE_INFOGRAPHIC = """
<script src="https://registry.npmmirror.com/@antv/infographic/0.2.1/files/dist/infographic.min.js"></script>
<script>
(function() {{
    const renderInfographic = () => {{
        const uniqueId = "{unique_id}";
        const containerEl = document.getElementById('infographic-container-' + uniqueId);
        if (!containerEl || containerEl.dataset.infographicRendered) return;

        const sourceEl = document.getElementById('infographic-source-' + uniqueId);
        if (!sourceEl) return;

        let syntaxContent = sourceEl.textContent.trim();
        if (!syntaxContent) {{
            containerEl.innerHTML = '<div class="error-message">⚠️ 无法加载信息图：缺少有效内容。</div>';
            return;
        }}

        console.log('[Infographic] 原始语法内容:', syntaxContent);

        // 尝试提取代码块内容
        const bt = String.fromCharCode(96);
        const tripleBt = bt + bt + bt;
        
        const startBlockIdx = syntaxContent.indexOf(tripleBt);
        if (startBlockIdx !== -1) {
            const endBlockIdx = syntaxContent.lastIndexOf(tripleBt);
            if (endBlockIdx > startBlockIdx) {
                let content = syntaxContent.substring(startBlockIdx + 3, endBlockIdx).trim();
                if (content.toLowerCase().startsWith('infographic')) {
                    const lineBreakChar = String.fromCharCode(10);
                    const firstLineBreak = content.indexOf(lineBreakChar);
                    if (firstLineBreak !== -1) {
                        const firstLine = content.substring(0, firstLineBreak).trim();
                        if (firstLine.toLowerCase() === 'infographic') {
                            content = content.substring(firstLineBreak).trim();
                        }
                    }
                }
                syntaxContent = content;
            }
        } else {
            const keyStart = syntaxContent.indexOf('infographic ');
            if (keyStart !== -1) {
                syntaxContent = syntaxContent.substring(keyStart).trim();
            }
        }

        // 修复语法：移除关键字后面的冒号
        syntaxContent = syntaxContent.replace(/^(data|items|children|theme|config):/gm, '$1');
        syntaxContent = syntaxContent.replace(/(\\s)(children|items):/g, '$1$2');

        // 1. 兜底检查：确保以 infographic 开头
        if (!syntaxContent.trim().toLowerCase().startsWith('infographic')) {
            const firstWord = syntaxContent.trim().split(/\s+/)[0].toLowerCase();
            if (!['data', 'theme', 'design', 'items'].includes(firstWord)) {
                console.log('[Infographic] 检测到缺失 infographic 前缀，自动补全');
                syntaxContent = 'infographic ' + syntaxContent;
            }
        }

        // 2. 模板映射配置
        // 2. 模板映射配置
        const TEMPLATE_MAPPING = {
            // 列表与层级
            'list-grid': 'list-grid-compact-card',
            'list-vertical': 'list-column-simple-vertical-arrow',
            'tree-vertical': 'hierarchy-tree-tech-style-capsule-item',
            'tree-horizontal': 'hierarchy-tree-lr-tech-style-capsule-item',
            'mindmap': 'hierarchy-mindmap-branch-gradient-capsule-item',
            
            // 顺序与关系
            'sequence-roadmap': 'sequence-roadmap-vertical-simple',
            'sequence-zigzag': 'sequence-horizontal-zigzag-simple',
            'sequence-horizontal': 'sequence-horizontal-zigzag-simple',
            'relation-sankey': 'relation-sankey-simple', // 暂无直接对应，保留原值或需移除
            'relation-circle': 'relation-circle-icon-badge',
            
            // 对比与分析
            'compare-binary': 'compare-binary-horizontal-simple-vs',
            'compare-swot': 'compare-swot',
            'quadrant-quarter': 'quadrant-quarter-simple-card',
            
            // 图表与数据
            'statistic-card': 'list-grid-compact-card',
            'chart-bar': 'chart-bar-plain-text',
            'chart-column': 'chart-column-simple',
            'chart-line': 'chart-line-plain-text',
            'chart-area': 'chart-area-simple', // 暂无直接对应
            'chart-pie': 'chart-pie-plain-text',
            'chart-doughnut': 'chart-pie-donut-plain-text'
        };

        // 3. 应用映射策略
        for (const [key, value] of Object.entries(TEMPLATE_MAPPING)) {
            const regex = new RegExp(`infographic\\\\s+${key}(?=\\\\s|$)`, 'i');
            if (regex.test(syntaxContent)) {
                console.log(`[Infographic] 自动映射模板: ${key} -> ${value}`);
                syntaxContent = syntaxContent.replace(regex, `infographic ${value}`);
                break; // 找到一个匹配后即停止
            }
        }

        // --- 样式提取与应用 ---
        const bgMatch = syntaxContent.match(/backgroundColor\s+(#[0-9a-fA-F]{6}|#[0-9a-fA-F]{3}|[a-zA-Z]+)/);
        if (bgMatch && bgMatch[1]) {
            containerEl.style.backgroundColor = bgMatch[1];
        } else {
            containerEl.style.backgroundColor = '#ffffff';
        }

        const textMatch = syntaxContent.match(/textColor\s+(#[0-9a-fA-F]{6}|#[0-9a-fA-F]{3}|[a-zA-Z]+)/);
        if (textMatch && textMatch[1]) {
            containerEl.style.color = textMatch[1];
        } else {
             containerEl.style.color = '';
        }

        // --- 语法清理 ---
        // 移除不支持的 theme 属性
        const nl = String.fromCharCode(10);
        const cleanRegex = new RegExp('^\\\\s*(roughness|stylize|backgroundColor|textColor|colorBg).*(' + nl + '\\\\s+.*)*', 'gm');
        syntaxContent = syntaxContent.replace(cleanRegex, '');
        
        syntaxContent = syntaxContent.trim();
        
        // 临时降级策略
        if (/infographic\s+list-vertical/.test(syntaxContent)) {
             console.log('[Infographic] 检测到 list-vertical 模板，为保证稳定性，临时降级为 list-row-simple-horizontal-arrow');
             syntaxContent = syntaxContent.replace(/infographic\s+list-vertical/, 'infographic list-row-simple-horizontal-arrow');
        }

        console.log('[Infographic] 清理后的语法内容:', syntaxContent);

        if (typeof AntVInfographic === 'undefined') {{
            console.error('[Infographic] AntVInfographic 库未加载');
            containerEl.innerHTML = '<div class="error-message">⚠️ 无法加载 AntV Infographic 库，请检查网络或稍后重试。</div>';
            return;
        }}

        try {{
            const {{ Infographic }} = AntVInfographic;
            const containerId = '#' + containerEl.id;
            
            const instance = new Infographic({
                container: containerId,
                padding: 24,
            });

            if (instance.on) {
                instance.on('error', (err) => {
                    console.error('[Infographic] 内部错误:', err);
                });
            }
            
            console.log('[Infographic] 开始渲染...');
            instance.render(syntaxContent);
            
            // 强制检查并挂载节点
            if (instance.node) {
                const existingSvg = containerEl.querySelector('svg');
                if (!existingSvg) {
                    console.log('[Infographic] 未检测到 SVG，执行强制手动挂载...');
                    containerEl.appendChild(instance.node);
                }
            } else {
                console.warn('[Infographic] 实例无 node 属性，尝试备用渲染...');
                try {
                    const tempInstance = new Infographic({});
                    tempInstance.render(syntaxContent);
                    if (tempInstance.node) {
                        containerEl.appendChild(tempInstance.node);
                    }
                } catch (e) {
                    console.error('[Infographic] 备用渲染也失败:', e);
                }
            }
            
            containerEl.dataset.infographicRendered = 'true';
            console.log('[Infographic] 渲染完成');

            // 自动调整高度
            setTimeout(() => {
                const svg = containerEl.querySelector('svg');
                if (svg) {
                    const bbox = svg.getBoundingClientRect();
                    let contentHeight = bbox.height;
                    if (svg.viewBox && svg.viewBox.baseVal && svg.viewBox.baseVal.height) {
                        contentHeight = svg.viewBox.baseVal.height;
                    }
                    const finalHeight = contentHeight + 40; 
                    containerEl.style.minHeight = finalHeight + 'px';
                    containerEl.style.height = 'auto';
                }
            }, 500);
            
            attachDownloadHandlers(uniqueId, syntaxContent);

        }} catch (error) {{
            console.error('[Infographic] 渲染出错:', error);
            containerEl.innerHTML = '<div class="error-message">⚠️ 信息图渲染失败！<br>原因：' + error.message + '</div>';
        }}
    }};

    const attachDownloadHandlers = (uniqueId, syntaxContent) => {{
        const downloadSvgBtn = document.getElementById('download-svg-btn-' + uniqueId);
        const downloadPngBtn = document.getElementById('download-png-btn-' + uniqueId);
        const downloadHtmlBtn = document.getElementById('download-html-btn-' + uniqueId);
        const containerEl = document.getElementById('infographic-container-' + uniqueId);

        const showFeedback = (button, isSuccess, msg) => {{
            const buttonText = button.querySelector('.btn-text');
            const originalText = buttonText.textContent;
            button.disabled = true;
            buttonText.textContent = isSuccess ? '✅ ' + (msg || '成功') : '❌ 失败';
            setTimeout(() => {{
                buttonText.textContent = originalText;
                button.disabled = false;
            }}, 2000);
        }};

        const downloadFile = (content, filename, mimeType) => {{
            const blob = new Blob([content], {{ type: mimeType }});
            const url = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = filename;
            document.body.appendChild(a);
            a.click();
            document.body.removeChild(a);
            URL.revokeObjectURL(url);
        }};

        if (downloadSvgBtn) {{
            downloadSvgBtn.addEventListener('click', (event) => {{
                event.stopPropagation();
                const svgEl = containerEl.querySelector('svg');
                if (svgEl) {{
                    const svgData = new XMLSerializer().serializeToString(svgEl);
                    downloadFile(svgData, 'infographic_' + uniqueId + '.svg', 'image/svg+xml');
                    showFeedback(downloadSvgBtn, true, '已下载');
                }} else {{
                    showFeedback(downloadSvgBtn, false);
                }}
            }});
        }}

        if (downloadPngBtn) {{
            downloadPngBtn.addEventListener('click', (event) => {{
                event.stopPropagation();
                const svgEl = containerEl.querySelector('svg');
                if (svgEl) {{
                    // 获取 SVG 的实际尺寸
                    const bbox = svgEl.getBoundingClientRect();
                    const width = bbox.width || svgEl.viewBox?.baseVal?.width || 800;
                    const height = bbox.height || svgEl.viewBox?.baseVal?.height || 600;
                    
                    // 克隆 SVG 并设置明确的宽高
                    const clonedSvg = svgEl.cloneNode(true);
                    clonedSvg.setAttribute('width', width);
                    clonedSvg.setAttribute('height', height);
                    clonedSvg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
                    
                    const svgData = new XMLSerializer().serializeToString(clonedSvg);
                    const canvas = document.createElement('canvas');
                    const ctx = canvas.getContext('2d');
                    const img = new Image();
                    
                    // 使用 Base64 编码避免特殊字符问题
                    const base64Data = btoa(unescape(encodeURIComponent(svgData)));
                    const dataUrl = 'data:image/svg+xml;base64,' + base64Data;
                    
                    img.onload = () => {{
                        const scale = 2;
                        canvas.width = width * scale;
                        canvas.height = height * scale;
                        ctx.scale(scale, scale);
                        ctx.fillStyle = '#ffffff';
                        ctx.fillRect(0, 0, canvas.width, canvas.height);
                        ctx.drawImage(img, 0, 0, width, height);
                        
                        canvas.toBlob((blob) => {{
                            if (blob) {{
                                const pngUrl = URL.createObjectURL(blob);
                                const a = document.createElement('a');
                                a.href = pngUrl;
                                a.download = 'infographic_' + uniqueId + '.png';
                                a.click();
                                URL.revokeObjectURL(pngUrl);
                                showFeedback(downloadPngBtn, true, '已下载');
                            }} else {{
                                console.error('[Infographic] PNG blob 创建失败');
                                showFeedback(downloadPngBtn, false);
                            }}
                        }}, 'image/png');
                    }};
                    
                    img.onerror = (err) => {{
                        console.error('[Infographic] SVG 转图片失败:', err);
                        showFeedback(downloadPngBtn, false);
                    }};
                    
                    img.src = dataUrl;
                }} else {{
                    showFeedback(downloadPngBtn, false);
                }}
            }});
        }}

        if (downloadHtmlBtn) {{
            downloadHtmlBtn.addEventListener('click', (event) => {{
                event.stopPropagation();
                const htmlContent = `<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>信息图</title>
    <script src="https://registry.npmmirror.com/@antv/infographic/0.2.1/files/dist/infographic.min.js"><\\/script>
    <style>
        body {{ margin: 0; padding: 20px; background: #f5f5f5; }}
        #container {{ background: white; border-radius: 8px; padding: 20px; max-width: 900px; margin: 0 auto; }}
    </style>
</head>
<body>
    <div id="container"></div>
    <script>
        const {{ Infographic }} = AntVInfographic;
        const instance = new Infographic({{
            container: '#container',
            width: '100%',
            padding: 24,
        }});
        instance.render(\`${{syntaxContent.replace(/`/g, '\\\\`')}}\`);
    <\\/script>
</body>
</html>`;
                downloadFile(htmlContent, 'infographic_' + uniqueId + '.html', 'text/html');
                showFeedback(downloadHtmlBtn, true, '已下载');
            }});
        }}
    }};

    if (document.readyState === 'loading') {{
        document.addEventListener('DOMContentLoaded', renderInfographic);
    }} else {{
        renderInfographic();
    }}
}})();
</script>
"""


class Action:
    class Valves(BaseModel):
        SHOW_STATUS: bool = Field(
            default=True, description="是否在聊天界面显示操作状态更新。"
        )
        MODEL_ID: str = Field(
            default="",
            description="用于文本分析的内置LLM模型ID。如果为空，则使用当前对话的模型。",
        )
        MIN_TEXT_LENGTH: int = Field(
            default=100,
            description="进行信息图分析所需的最小文本长度（字符数）。",
        )
        CLEAR_PREVIOUS_HTML: bool = Field(
            default=False,
            description="是否强制清除旧的插件结果（如果为 True，则不合并，直接覆盖）。",
        )
        MESSAGE_COUNT: int = Field(
            default=1,
            description="用于生成的最近消息数量。设置为1仅使用最后一条消息，更大值可包含更多上下文。",
        )

    def __init__(self):
        self.valves = self.Valves()
        self.weekday_map = {
            "Monday": "星期一",
            "Tuesday": "星期二",
            "Wednesday": "星期三",
            "Thursday": "星期四",
            "Friday": "星期五",
            "Saturday": "星期六",
            "Sunday": "星期日",
        }

    def _extract_infographic_syntax(self, llm_output: str) -> str:
        """提取LLM输出中的infographic语法"""
        # 1. 优先匹配 ```infographic
        match = re.search(r"```infographic\s*(.*?)\s*```", llm_output, re.DOTALL)
        if match:
            return match.group(1).strip().replace("</script>", "<\\/script>")

        # 2. 其次匹配 ```mermaid (有时 LLM 会混淆)
        match = re.search(r"```mermaid\s*(.*?)\s*```", llm_output, re.DOTALL)
        if match:
            content = match.group(1).strip()
            # 简单检查是否包含 infographic 关键字
            if "infographic" in content or "data" in content:
                return content.replace("</script>", "<\\/script>")

        # 3. 再次匹配通用 ``` (无语言标记)
        match = re.search(r"```\s*(.*?)\s*```", llm_output, re.DOTALL)
        if match:
            content = match.group(1).strip()
            # 简单的启发式检查
            if "infographic" in content or "data" in content:
                return content.replace("</script>", "<\\/script>")

        # 4. 兜底：如果看起来像直接输出了语法（以 infographic 或 list-grid 等开头）
        cleaned_output = llm_output.strip()
        first_line = cleaned_output.split("\n")[0].lower()
        if (
            first_line.startswith("infographic")
            or first_line.startswith("list-")
            or first_line.startswith("tree-")
            or first_line.startswith("mindmap")
        ):
            return cleaned_output.replace("</script>", "<\\/script>")

        logger.warning("LLM输出未严格遵循预期格式，将整个输出作为语法处理。")
        return cleaned_output.replace("</script>", "<\\/script>")

    async def _emit_status(self, emitter, description: str, done: bool = False):
        """发送状态更新事件"""
        if self.valves.SHOW_STATUS and emitter:
            await emitter(
                {"type": "status", "data": {"description": description, "done": done}}
            )

    async def _emit_notification(self, emitter, content: str, ntype: str = "info"):
        """发送通知事件 (info/success/warning/error)"""
        if emitter:
            await emitter(
                {"type": "notification", "data": {"type": ntype, "content": content}}
            )

    def _remove_existing_html(self, content: str) -> str:
        """移除内容中已有的插件生成 HTML 代码块"""
        pattern = r"```html\s*<!-- OPENWEBUI_PLUGIN_OUTPUT -->[\s\S]*?```"
        return re.sub(pattern, "", content).strip()

    def _extract_text_content(self, content) -> str:
        """从消息内容中提取文本，支持多模态消息格式"""
        if isinstance(content, str):
            return content
        elif isinstance(content, list):
            # 多模态消息: [{"type": "text", "text": "..."}, {"type": "image_url", ...}]
            text_parts = []
            for item in content:
                if isinstance(item, dict) and item.get("type") == "text":
                    text_parts.append(item.get("text", ""))
                elif isinstance(item, str):
                    text_parts.append(item)
            return "\n".join(text_parts)
        return str(content) if content else ""

    def _merge_html(
        self,
        existing_html_code: str,
        new_content: str,
        new_styles: str = "",
        new_scripts: str = "",
        user_language: str = "zh-CN",
    ) -> str:
        """将新内容合并到现有的 HTML 容器中，或者创建一个新的容器"""
        if (
            "<!-- OPENWEBUI_PLUGIN_OUTPUT -->" in existing_html_code
            and "<!-- CONTENT_INSERTION_POINT -->" in existing_html_code
        ):
            base_html = existing_html_code
            base_html = re.sub(r"^```html\s*", "", base_html)
            base_html = re.sub(r"\s*```$", "", base_html)
        else:
            base_html = HTML_WRAPPER_TEMPLATE.replace("{user_language}", user_language)

        wrapped_content = f'<div class="plugin-item">\n{new_content}\n</div>'

        if new_styles:
            base_html = base_html.replace(
                "/* STYLES_INSERTION_POINT */",
                f"{new_styles}\n/* STYLES_INSERTION_POINT */",
            )

        base_html = base_html.replace(
            "<!-- CONTENT_INSERTION_POINT -->",
            f"{wrapped_content}\n<!-- CONTENT_INSERTION_POINT -->",
        )

        if new_scripts:
            base_html = base_html.replace(
                "<!-- SCRIPTS_INSERTION_POINT -->",
                f"{new_scripts}\n<!-- SCRIPTS_INSERTION_POINT -->",
            )

        return base_html.strip()

    async def action(
        self,
        body: dict,
        __user__: Optional[Dict[str, Any]] = None,
        __event_emitter__: Optional[Any] = None,
        __request__: Optional[Request] = None,
    ) -> Optional[dict]:
        logger.info("Action: 信息图启动 (v1.0.0)")

        # 获取用户信息
        if isinstance(__user__, (list, tuple)):
            user_language = (
                __user__[0].get("language", "zh-CN") if __user__ else "zh-CN"
            )
            user_name = __user__[0].get("name", "用户") if __user__[0] else "用户"
            user_id = (
                __user__[0]["id"]
                if __user__ and "id" in __user__[0]
                else "unknown_user"
            )
        elif isinstance(__user__, dict):
            user_language = __user__.get("language", "zh-CN")
            user_name = __user__.get("name", "用户")
            user_id = __user__.get("id", "unknown_user")

        # 获取当前时间
        now = datetime.now()
        current_date_time_str = now.strftime("%Y年%m月%d日 %H:%M:%S")
        current_weekday_en = now.strftime("%A")
        current_weekday = self.weekday_map.get(current_weekday_en, current_weekday_en)
        current_year = now.strftime("%Y")

        original_content = ""
        try:
            messages = body.get("messages", [])
            if not messages:
                raise ValueError("无法获取有效的用户消息内容。")

            # 根据 MESSAGE_COUNT 获取最近 N 条消息
            message_count = min(self.valves.MESSAGE_COUNT, len(messages))
            recent_messages = messages[-message_count:]

            # 聚合选中消息的内容，带标签
            aggregated_parts = []
            for i, msg in enumerate(recent_messages, 1):
                text_content = self._extract_text_content(msg.get("content"))
                if text_content:
                    role = msg.get("role", "unknown")
                    role_label = (
                        "用户"
                        if role == "user"
                        else "助手" if role == "assistant" else role
                    )
                    aggregated_parts.append(f"{text_content}")

            if not aggregated_parts:
                raise ValueError("无法获取有效的用户消息内容。")

            original_content = "\n\n---\n\n".join(aggregated_parts)

            # 提取非HTML部分的文本
            parts = re.split(r"```html.*?```", original_content, flags=re.DOTALL)
            long_text_content = ""
            if parts:
                for part in reversed(parts):
                    if part.strip():
                        long_text_content = part.strip()
                        break

            if not long_text_content:
                long_text_content = original_content.strip()

            # 检查文本长度
            if len(long_text_content) < self.valves.MIN_TEXT_LENGTH:
                short_text_message = f"文本内容过短({len(long_text_content)}字符)，无法进行有效分析。请提供至少{self.valves.MIN_TEXT_LENGTH}字符的文本。"
                await self._emit_notification(
                    __event_emitter__, short_text_message, "warning"
                )
                return {
                    "messages": [
                        {"role": "assistant", "content": f"⚠️ {short_text_message}"}
                    ]
                }

            await self._emit_notification(
                __event_emitter__, "📊 信息图已启动，正在生成...", "info"
            )
            await self._emit_status(__event_emitter__, "📊 信息图: 开始生成...", False)

            # 生成唯一ID
            unique_id = f"id_{int(time.time() * 1000)}"

            # 构建提示词
            await self._emit_status(
                __event_emitter__, "📊 信息图: 正在调用 AI 模型分析内容...", False
            )
            formatted_user_prompt = USER_PROMPT_GENERATE_INFOGRAPHIC.format(
                user_name=user_name,
                current_date_time_str=current_date_time_str,
                user_language=user_language,
                long_text_content=long_text_content,
            )

            # 确定使用的模型
            target_model = self.valves.MODEL_ID
            if not target_model:
                target_model = body.get("model")

            llm_payload = {
                "model": target_model,
                "messages": [
                    {"role": "system", "content": SYSTEM_PROMPT_INFOGRAPHIC_ASSISTANT},
                    {"role": "user", "content": formatted_user_prompt},
                ],
                "stream": False,
            }

            user_obj = Users.get_user_by_id(user_id)
            if not user_obj:
                raise ValueError(f"无法获取用户对象，用户ID: {user_id}")

            llm_response = await generate_chat_completion(
                __request__, llm_payload, user_obj
            )

            if (
                not llm_response
                or "choices" not in llm_response
                or not llm_response["choices"]
            ):
                raise ValueError("无效的 LLM 响应格式或为空。")

            await self._emit_status(
                __event_emitter__, "📊 信息图: AI 分析完成，正在解析语法...", False
            )

            assistant_response_content = llm_response["choices"][0]["message"][
                "content"
            ]
            infographic_syntax = self._extract_infographic_syntax(
                assistant_response_content
            )

            # 准备内容组件
            await self._emit_status(
                __event_emitter__, "📊 信息图: 正在渲染图表...", False
            )
            content_html = (
                CONTENT_TEMPLATE_INFOGRAPHIC.replace("{unique_id}", unique_id)
                .replace("{user_name}", user_name)
                .replace("{current_date_time_str}", current_date_time_str)
                .replace("{current_year}", current_year)
                .replace("{infographic_syntax}", infographic_syntax)
            )

            # 先替换占位符，然后将 {{ 转为 { 和 }} 转为 }
            script_html = SCRIPT_TEMPLATE_INFOGRAPHIC.replace("{unique_id}", unique_id)
            script_html = script_html.replace("{{", "{").replace("}}", "}")

            # 提取现有HTML（如果有）
            existing_html_block = ""
            match = re.search(
                r"```html\s*(<!-- OPENWEBUI_PLUGIN_OUTPUT -->[\s\S]*?)```",
                original_content,
            )
            if match:
                existing_html_block = match.group(1)

            if self.valves.CLEAR_PREVIOUS_HTML:
                original_content = self._remove_existing_html(original_content)
                final_html = self._merge_html(
                    "",
                    content_html,
                    CSS_TEMPLATE_INFOGRAPHIC,
                    script_html,
                    user_language,
                )
            else:
                if existing_html_block:
                    original_content = self._remove_existing_html(original_content)
                    final_html = self._merge_html(
                        existing_html_block,
                        content_html,
                        CSS_TEMPLATE_INFOGRAPHIC,
                        script_html,
                        user_language,
                    )
                else:
                    final_html = self._merge_html(
                        "",
                        content_html,
                        CSS_TEMPLATE_INFOGRAPHIC,
                        script_html,
                        user_language,
                    )

            html_embed_tag = f"```html\n{final_html}\n```"
            body["messages"][-1]["content"] = f"{original_content}\n\n{html_embed_tag}"

            await self._emit_status(__event_emitter__, "✅ 信息图: 生成完成!", True)
            await self._emit_notification(
                __event_emitter__,
                f"📊 信息图已生成，{user_name}！",
                "success",
            )
            logger.info("信息图生成完成")

        except Exception as e:
            error_message = f"信息图处理失败: {str(e)}"
            logger.error(f"信息图错误: {error_message}", exc_info=True)
            user_facing_error = f"抱歉，信息图在处理时遇到错误: {str(e)}。\n请检查Open WebUI后端日志获取更多详情。"
            body["messages"][-1][
                "content"
            ] = f"{original_content}\n\n❌ **错误:** {user_facing_error}"

            await self._emit_status(__event_emitter__, "❌ 信息图: 生成失败", True)
            await self._emit_notification(
                __event_emitter__, f"❌ 信息图生成失败, {user_name}!", "error"
            )

        return body