<?php
// 確保PHP版本符合要求
if (version_compare(PHP_VERSION, '8.4.0', '<')) {
    die("需要PHP 8.4或更高版本");
}

/**
 * Word文檔處理框架
 */
class WordProcessor {
    private string $docxPath;
    private string $tempDir;
    private array $documentContent;
    private array $comments;
    private array $relationships;

    public function __construct(string $docxPath) {
        $this->docxPath = $docxPath;
        $this->tempDir = sys_get_temp_dir() . '/word_processor_' . uniqid();
    }

    /**
     * 加載并解析Word文檔
     */
    public function loadDocument(): void {
        // 創(chuàng)建臨時(shí)目錄
        if (!mkdir($this->tempDir, 0777, true)) {
            throw new Exception("無法創(chuàng)建臨時(shí)目錄");
        }

        // 解壓DOCX文件
        $zip = new ZipArchive();
        if ($zip->open($this->docxPath) !== true) {
            throw new Exception("無法打開Word文檔");
        }
        $zip->extractTo($this->tempDir);
        $zip->close();

        // 加載主文檔內(nèi)容
        $documentFile = $this->tempDir . '/word/document.xml';
        if (!file_exists($documentFile)) {
            throw new Exception("無法找到document.xml");
        }

        $this->documentContent = $this->parseXml(file_get_contents($documentFile));

        // 加載批注
        $commentsFile = $this->tempDir . '/word/comments.xml';
        if (file_exists($commentsFile)) {
            $this->comments = $this->parseXml(file_get_contents($commentsFile));
        }

        // 加載關(guān)系
        $relsFile = $this->tempDir . '/word/_rels/document.xml.rels';
        if (file_exists($relsFile)) {
            $this->relationships = $this->parseXml(file_get_contents($relsFile));
        }
    }

    /**
     * 保存修改后的文檔
     */
    public function saveDocument(string $outputPath): void {
        // 更新主文檔內(nèi)容
        file_put_contents(
            $this->tempDir . '/word/document.xml',
            $this->generateXml($this->documentContent)
        );

        // 更新批注
        if (!empty($this->comments)) {
            file_put_contents(
                $this->tempDir . '/word/comments.xml',
                $this->generateXml($this->comments)
            );
        }

        // 更新關(guān)系
        if (!empty($this->relationships)) {
            file_put_contents(
                $this->tempDir . '/word/_rels/document.xml.rels',
                $this->generateXml($this->relationships)
            );
        }

        // 重新打包為DOCX
        $zip = new ZipArchive();
        if ($zip->open($outputPath, ZipArchive::CREATE | ZipArchive::OVERWRITE) !== true) {
            throw new Exception("無法創(chuàng)建輸出文件");
        }

        $files = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($this->tempDir),
            RecursiveIteratorIterator::LEAVES_ONLY
        );

        foreach ($files as $name => $file) {
            if (!$file->isDir()) {
                $filePath = $file->getRealPath();
                $relativePath = substr($filePath, strlen($this->tempDir) + 1);
                $zip->addFile($filePath, $relativePath);
            }
        }

        $zip->close();
        
        // 清理臨時(shí)文件
        $this->cleanup();
    }

    /**
     * 根據(jù)批注處理文檔
     */
    public function processComments(): void {
        if (empty($this->comments)) return;

        // 查找包含特定指令的批注
        foreach ($this->comments['w:comment'] as $comment) {
            $commentId = $comment['w:id'];
            $commentText = $this->extractText($comment['w:p']);

            // 處理不同指令
            if (str_contains($commentText, '#INSERT_TABLE')) {
                $this->insertTableAfterComment($commentId);
            } elseif (str_contains($commentText, '#REMOVE_SECTION')) {
                $this->removeSectionByComment($commentId);
            } elseif (str_contains($commentText, '#UPDATE_CHART')) {
                $this->updateChartByComment($commentId);
            } elseif (str_contains($commentText, '#CLONE_ELEMENT')) {
                $this->cloneElementByComment($commentId);
            } elseif (str_contains($commentText, '#REPLACE_TEXT')) {
                $this->replaceTextByComment($commentId, "替換文本示例");
            }
        }
    }

    /**
     * 插入表格到批注位置
     */
    private function insertTableAfterComment(string $commentId): void {
        // 在實(shí)際應(yīng)用中，這里會(huì)有完整的表格XML結(jié)構(gòu)
        $newTable = [
            'w:tbl' => [
                'w:tblPr' => ['w:tblW' => ['@w:w' => '5000', '@w:type' => 'pct']],
                'w:tblGrid' => [
                    'w:gridCol' => ['@w:w' => '2500'],
                    'w:gridCol' => ['@w:w' => '2500']
                ],
                'w:tr' => [
                    [
                        'w:tc' => [
                            [
                                'w:p' => [
                                    'w:r' => [
                                        'w:t' => ['@xml:space' => 'preserve', '#' => '列1']
                                    ]
                                ]
                            ],
                            [
                                'w:p' => [
                                    'w:r' => [
                                        'w:t' => ['@xml:space' => 'preserve', '#' => '列2']
                                    ]
                                ]
                            ]
                        ]
                    ],
                    [
                        'w:tc' => [
                            [
                                'w:p' => [
                                    'w:r' => [
                                        'w:t' => ['@xml:space' => 'preserve', '#' => '數(shù)據(jù)1']
                                    ]
                                ]
                            ],
                            [
                                'w:p' => [
                                    'w:r' => [
                                        'w:t' => ['@xml:space' => 'preserve', '#' => '數(shù)據(jù)2']
                                    ]
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ];

        // 在實(shí)際應(yīng)用中，需要定位批注位置并插入表格
        $this->insertElementAfterComment($commentId, $newTable);
    }

    /**
     * 根據(jù)批注更新圖表
     */
    private function updateChartByComment(string $commentId): void {
        // 在實(shí)際應(yīng)用中，這里會(huì)解析圖表XML并更新數(shù)據(jù)
        $this->log("更新由批注 {$commentId} 引用的圖表數(shù)據(jù)");
    }

    /**
     * 根據(jù)批注克隆元素
     */
    private function cloneElementByComment(string $commentId): void {
        // 在實(shí)際應(yīng)用中，這里會(huì)定位元素并創(chuàng)建副本
        $this->log("克隆由批注 {$commentId} 引用的元素");
    }

    /**
     * 根據(jù)批注移除元素
     */
    private function removeSectionByComment(string $commentId): void {
        // 在實(shí)際應(yīng)用中，這里會(huì)定位并刪除元素
        $this->log("移除由批注 {$commentId} 引用的部分");
    }

    /**
     * 根據(jù)批注替換文本
     */
    private function replaceTextByComment(string $commentId, string $newText): void {
        // 在實(shí)際應(yīng)用中，這里會(huì)定位并替換文本
        $this->log("將批注 {$commentId} 引用的文本替換為: {$newText}");
    }

    /**
     * 插入元素到批注位置
     */
    private function insertElementAfterComment(string $commentId, array $element): void {
        // 在實(shí)際應(yīng)用中，這里會(huì)定位批注位置并插入元素
        $this->log("在批注 {$commentId} 位置插入新元素");
    }

    /**
     * 添加新段落
     */
    public function addParagraph(string $text, array $styles = []): void {
        $newParagraph = [
            'w:p' => [
                'w:pPr' => $styles,
                'w:r' => [
                    'w:t' => ['@xml:space' => 'preserve', '#' => $text]
                ]
            ]
        ];

        // 添加到文檔末尾
        $this->documentContent['w:document']['w:body'][] = $newParagraph;
    }

    /**
     * 添加圖片
     */
    public function addImage(string $imagePath, int $width, int $height): void {
        // 生成唯一ID
        $imageId = 'rId' . (count($this->relationships['Relationship']) + 1000);
        $imageName = 'image' . uniqid() . '.' . pathinfo($imagePath, PATHINFO_EXTENSION);

        // 添加關(guān)系
        $this->relationships['Relationship'][] = [
            '@Id' => $imageId,
            '@Type' => 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/image',
            '@Target' => 'media/' . $imageName
        ];

        // 創(chuàng)建圖片元素
        $imageElement = [
            'w:drawing' => [
                'wp:inline' => [
                    'wp:extent' => ['@cx' => $width * 9525, '@cy' => $height * 9525],
                    'wp:docPr' => ['@id' => '1', '@name' => 'Picture'],
                    'a:graphic' => [
                        'a:graphicData' => [
                            '@uri' => 'http://schemas.openxmlformats.org/drawingml/2006/picture',
                            'pic:pic' => [
                                'pic:nvPicPr' => [
                                    'pic:cNvPr' => ['@id' => '0', '@name' => $imageName]
                                ],
                                'pic:blipFill' => [
                                    'a:blip' => ['@r:embed' => $imageId]
                                ],
                                'pic:spPr' => [
                                    'a:xfrm' => ['a:off' => ['@x' => '0', '@y' => '0']],
                                    'a:prstGeom' => ['@prst' => 'rect']
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ];

        // 創(chuàng)建包含圖片的段落
        $imageParagraph = [
            'w:p' => [
                'w:r' => $imageElement
            ]
        ];

        // 添加到文檔末尾
        $this->documentContent['w:document']['w:body'][] = $imageParagraph;

        // 復(fù)制圖片到文檔
        copy($imagePath, $this->tempDir . '/word/media/' . $imageName);
    }

    /**
     * 清理臨時(shí)文件
     */
    private function cleanup(): void {
        $files = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($this->tempDir, FilesystemIterator::SKIP_DOTS),
            RecursiveIteratorIterator::CHILD_FIRST
        );

        foreach ($files as $file) {
            $file->isDir() ? rmdir($file) : unlink($file);
        }

        rmdir($this->tempDir);
    }

    /**
     * 解析XML為數(shù)組
     */
    private function parseXml(string $xml): array {
        $dom = new DOMDocument();
        $dom->loadXML($xml);
        return $this->domToArray($dom->documentElement);
    }

    /**
     * 將DOM節(jié)點(diǎn)轉(zhuǎn)換為數(shù)組
     */
    private function domToArray(DOMNode $node): array {
        $result = [];
        if ($node->hasAttributes()) {
            foreach ($node->attributes as $attribute) {
                $result['@' . $attribute->nodeName] = $attribute->nodeValue;
            }
        }

        if ($node->hasChildNodes()) {
            $children = $node->childNodes;
            $textContent = '';
            $hasElements = false;
            $childGroups = [];

            foreach ($children as $child) {
                if ($child instanceof DOMText) {
                    $textContent .= $child->nodeValue;
                } elseif ($child instanceof DOMElement) {
                    $hasElements = true;
                    $childArray = $this->domToArray($child);
                    $childName = $child->nodeName;
                    
                    if (!isset($childGroups[$childName])) {
                        $childGroups[$childName] = [];
                    }
                    
                    $childGroups[$childName][] = $childArray;
                }
            }

            if ($hasElements) {
                foreach ($childGroups as $name => $children) {
                    $result[$name] = count($children) > 1 ? $children : $children[0];
                }
            } elseif ($textContent !== '') {
                $result['#'] = $textContent;
            }
        }

        return $result;
    }

    /**
     * 從XML數(shù)組生成XML字符串
     */
    private function generateXml(array $data, string $nodeName = ''): string {
        $xml = '';
        
        if (!empty($data['#'])) {
            return htmlspecialchars($data['#']);
        }
        
        foreach ($data as $key => $value) {
            if (str_starts_with($key, '@')) {
                continue; // 屬性稍后處理
            }
            
            if (is_array($value)) {
                if (is_numeric($key)) {
                    $xml .= $this->generateXml($value, $nodeName);
                } else {
                    if (isset($value[0]) && is_array($value[0])) {
                        foreach ($value as $item) {
                            $xml .= "<$key";
                            if (isset($item['@'])) {
                                foreach ($item['@'] as $attr => $val) {
                                    $xml .= " $attr="" . htmlspecialchars($val) . """;
                                }
                                unset($item['@']);
                            }
                            $xml .= ">" . $this->generateXml($item, $key) . "</$key>";
                        }
                    } else {
                        $xml .= "<$key";
                        if (isset($value['@'])) {
                            foreach ($value['@'] as $attr => $val) {
                                $xml .= " $attr="" . htmlspecialchars($val) . """;
                            }
                            unset($value['@']);
                        }
                        $xml .= ">" . $this->generateXml($value, $key) . "</$key>";
                    }
                }
            } else {
                $xml .= "<$key>" . htmlspecialchars($value) . "</$key>";
            }
        }
        
        return $xml;
    }

    /**
     * 從XML節(jié)點(diǎn)提取文本
     */
    private function extractText(array $element): string {
        if (isset($element['w:r']['w:t'])) {
            return $element['w:r']['w:t']['#'] ?? '';
        }
        
        $text = '';
        foreach ($element as $part) {
            if (is_array($part) {
                $text .= $this->extractText($part);
            }
        }
        
        return $text;
    }

    /**
     * 記錄操作日志
     */
    private function log(string $message): void {
        echo "[LOG] " . $message . PHP_EOL;
    }
}

// 示例使用
try {
    // 創(chuàng)建Word處理器實(shí)例
    $processor = new WordProcessor('input.docx');
    
    // 加載文檔
    $processor->loadDocument();
    
    // 處理批注
    $processor->processComments();
    
    // 添加新段落
    $processor->addParagraph("這是通過PHP添加的新段落。");
    
    // 添加圖片
    $processor->addImage('example.png', 300, 200);
    
    // 保存修改后的文檔
    $processor->saveDocument('output.docx');
    
    echo "Word文檔處理完成！輸出文件: output.docx" . PHP_EOL;
    
} catch (Exception $e) {
    die("處理錯(cuò)誤: " . $e->getMessage());
}
?>

// 創(chuàng)建Word處理器實(shí)例
$processor = new WordProcessor('input.docx');

// 加載文檔
$processor->loadDocument();

// 處理批注
$processor->processComments();

// 添加新段落
$processor->addParagraph("這是通過PHP添加的新段落。");

// 添加圖片
$processor->addImage('example.png', 300, 200);

// 保存修改后的文檔
$processor->saveDocument('output.docx');