{"repo": "bxxdm1/podcast-transcriber", "files": {".env.example": {"b47fdb127e62eea524ea21643ceee4f431c157a2": {"t": 1785745175.7693806, "n": 231, "h": "925e56d13d782f38", "c": "# DeepSeek API 配置\nDEEPSEEK_API_KEY=your_deepseek_api_key_here\nDEEPSEEK_BASE_URL=https://api.deepseek.com\n\n# 本地 Whisper 配置\nWHISPER_MODEL=base\n\n# 服务器配置\nPORT=3000\n\n# Python 路径 (Anaconda)\nPYTHON_PATH=D:/Study_tools/Anaconda/python.exe\n"}, "369723ad7dd34f4b2e44febf054990558cdb4826": {"t": 1785748407.6012282, "n": 231, "h": "925e56d13d782f38", "c": "# DeepSeek API 配置\nDEEPSEEK_API_KEY=your_deepseek_api_key_here\nDEEPSEEK_BASE_URL=https://api.deepseek.com\n\n# 本地 Whisper 配置\nWHISPER_MODEL=base\n\n# 服务器配置\nPORT=3000\n\n# Python 路径 (Anaconda)\nPYTHON_PATH=D:/Study_tools/Anaconda/python.exe\n"}}, "server/services/deepseekService.js": {"b47fdb127e62eea524ea21643ceee4f431c157a2": {"t": 1785746683.0711823, "n": 11180, "h": "c1849ce1199bf8f1", "c": "/**\n * DeepSeek AI 服务\n * 替代 OpenAI，用于文本优化和总结\n * DeepSeek API 兼容 OpenAI 格式\n */\nconst OpenAI = require('openai');\nconst fs = require('fs');\nconst path = require('path');\nconst { exec } = require('child_process');\nconst { promisify } = require('util');\n\nconst execAsync = promisify(exec);\n\n// 初始化 DeepSeek 客户端（兼容 OpenAI SDK）\nconst deepseek = new OpenAI({\n    apiKey: process.env.DEEPSEEK_API_KEY,\n    baseURL: process.env.DEEPSEEK_BASE_URL || 'https://api.deepseek.com',\n    timeout: 600000,\n    maxRetries: 2\n});\n\nconst DEEPSEEK_MODEL = 'deepseek-chat';\n\nconsole.log(`🤖 AI服务: DeepSeek (${DEEPSEEK_MODEL})`);\n\n/**\n * 生成标准化的文件名\n */\nfunction generateFilePrefix(type, title) {\n    let cleanTitle = title\n        .replace(/\\s*\\|\\s*/g, '-')\n        .replace(/\\s*:\\s*/g, '-')\n        .replace(/[<>:\"/\\\\|?*]/g, '')\n        .replace(/\\s+/g, '_')\n        .replace(/[^\\w一-龥\\-_.]/g, '');\n    if (cleanTitle.length > 30) cleanTitle = cleanTitle.substring(0, 30);\n    const uuid = Math.random().toString(36).substr(2, 6).toUpperCase();\n    return `${type}_${cleanTitle}_${uuid}`;\n}\n\n/**\n * 处理音频文件：转录 + 优化 + 总结\n */\nasync function processAudio(audioFiles, shouldSummarize = false, tempDir = null, podcastTitle = null, sessionId = null, sendProgress = null) {\n    try {\n        console.log(`🤖 开始音频处理`);\n        const files = Array.isArray(audioFiles) ? audioFiles : [audioFiles];\n        console.log(`📄 处理文件数量: ${files.length}`);\n\n        let transcript = '';\n        let savedFiles = [];\n\n        if (files.length === 1) {\n            // 单文件处理 - 调用 Python Whisper 脚本\n            const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n            const filePrefix = generateFilePrefix('raw', podcastTitle || 'Untitled');\n            const pythonPath = process.env.PYTHON_PATH || 'python';\n            const command = `\"${pythonPath}\" \"${scriptPath}\" \"${files[0]}\" --model ${process.env.WHISPER_MODEL || 'base'} --save-transcript \"${tempDir}\" --file-prefix \"${filePrefix}\" --podcast-title \"${podcastTitle || 'Untitled'}\"`;\n\n            console.log(`🎤 Whisper 转录: ${path.basename(files[0])}`);\n            if (sendProgress) sendProgress(30, 'transcription', '语音转录中...');\n\n            const { stdout, stderr } = await execAsync(command, {\n                cwd: path.join(__dirname, '..'),\n                maxBuffer: 1024 * 1024 * 20,\n                timeout: 3600000,\n                env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n            });\n\n            if (stderr && stderr.trim()) console.log(`🔧 Whisper日志: ${stderr.trim()}`);\n\n            const result = JSON.parse(stdout);\n            if (!result.success) throw new Error(result.error || '转录失败');\n\n            transcript = result.text || '';\n            savedFiles = result.savedFiles || [];\n            console.log(`✅ 转录完成: ${transcript.length} 字符`);\n\n            // DeepSeek 智能优化转录文本\n            if (sendProgress) sendProgress(50, 'optimizing', 'AI优化文本中...');\n            let optimizedTranscript = transcript;\n            try {\n                optimizedTranscript = await optimizeTranscript(transcript);\n                console.log(`✅ 文本优化完成: ${optimizedTranscript.length} 字符`);\n\n                // 保存优化后的文本\n                if (savedFiles.length > 0) {\n                    const transcriptFile = savedFiles.find(f => f.type === 'transcript');\n                    if (transcriptFile && fs.existsSync(transcriptFile.path)) {\n                        // 备份原始转录\n                        const backupPath = transcriptFile.path.replace('.md', '_original.md');\n                        if (!fs.existsSync(backupPath)) {\n                            fs.copyFileSync(transcriptFile.path, backupPath);\n                        }\n                        fs.writeFileSync(transcriptFile.path, optimizedTranscript, 'utf8');\n                    }\n                }\n                transcript = optimizedTranscript;\n            } catch (optErr) {\n                console.warn(`⚠️ 文本优化失败，使用原始转录: ${optErr.message}`);\n            }\n\n            // 生成总结\n            let summary = null;\n            if (shouldSummarize) {\n                console.log(`📝 生成总结...`);\n                if (sendProgress) sendProgress(70, 'summary', 'AI生成总结中...');\n                try {\n                    summary = await generateSummary(transcript);\n                    const summaryPrefix = generateFilePrefix('summary', podcastTitle || 'Untitled');\n                    const summaryFileName = `${summaryPrefix}.md`;\n                    const summaryPath = path.join(tempDir, summaryFileName);\n                    fs.writeFileSync(summaryPath, `# 🎙️ ${podcastTitle || '播客总结'}\\n\\n${summary}`, 'utf8');\n                    savedFiles.push({\n                        type: 'summary',\n                        filename: summaryFileName,\n                        path: summaryPath,\n                        size: fs.statSync(summaryPath).size\n                    });\n                    console.log(`📋 总结已保存: ${summaryFileName}`);\n                } catch (sumErr) {\n                    console.error(`❌ 总结生成失败: ${sumErr.message}`);\n                }\n            }\n\n            return {\n                transcript: transcript,\n                summary: summary,\n                language: 'zh',\n                audioDuration: result.duration,\n                savedFiles: savedFiles\n            };\n        }\n\n        // 多文件处理\n        for (let i = 0; i < files.length; i++) {\n            console.log(`🎵 转录片段 ${i + 1}/${files.length}`);\n            const result = await transcribeSingleFile(files[i]);\n            if (result) transcript += result + '\\n\\n';\n        }\n\n        return { transcript: transcript.trim(), summary: null, savedFiles: [] };\n\n    } catch (error) {\n        console.error('❌ 音频处理失败:', error);\n        throw error;\n    }\n}\n\n/**\n * 调用 Whisper 转录单个文件\n */\nasync function transcribeSingleFile(audioPath) {\n    const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n    const pythonPath = process.env.PYTHON_PATH || 'python';\n    const command = `\"${pythonPath}\" \"${scriptPath}\" \"${audioPath}\" --model ${process.env.WHISPER_MODEL || 'base'}`;\n\n    const { stdout } = await execAsync(command, {\n        cwd: path.join(__dirname, '..'),\n        maxBuffer: 1024 * 1024 * 20,\n        timeout: 1200000,\n        env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n    });\n\n    const result = JSON.parse(stdout);\n    return result.success ? result.text : null;\n}\n\n/**\n * DeepSeek 优化转录文本\n */\nasync function optimizeTranscript(rawTranscript) {\n    const maxChars = 6000;\n    if (rawTranscript.length <= maxChars) {\n        return await optimizeChunk(rawTranscript);\n    }\n\n    // 分块处理长文本\n    const chunks = splitText(rawTranscript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块优化`);\n\n    const optimized = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 优化第 ${i + 1}/${chunks.length} 块`);\n        const chunk = await optimizeChunk(chunks[i], i > 0 ? chunks[i - 1].slice(-100) : null);\n        optimized.push(chunk);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n    return optimized.join('\\n\\n');\n}\n\n/**\n * DeepSeek 优化单个文本块\n */\nasync function optimizeChunk(text, prevContext = null) {\n    let contextHint = '';\n    if (prevContext) {\n        contextHint = `[上文续：${prevContext}]\\n\\n`;\n    }\n\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: '你是专业的音频转录文本优化助手。修正错别字、同音字错误，改善语法，添加合适标点，但必须保持原意不变。按话题合理分段，Markdown格式，段落间双换行，不加分隔线。【必须使用简体中文输出，严禁繁体中文。写\"投资\"不写\"投資\"，写\"经济\"不写\"經濟\"。】'\n            },\n            {\n                role: 'user',\n                content: `${contextHint}请优化以下转录文本：\\n\\n${text}`\n            }\n        ],\n        temperature: 0.1,\n        max_tokens: 4096\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * DeepSeek 生成播客总结\n */\nasync function generateSummary(transcript) {\n    const maxChars = 6000;\n    if (transcript.length <= maxChars) {\n        return await generateSummaryChunk(transcript);\n    }\n\n    // 分块总结再整合\n    const chunks = splitText(transcript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块总结`);\n\n    const summaries = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 总结第 ${i + 1}/${chunks.length} 块`);\n        const s = await generateSummaryChunk(chunks[i]);\n        summaries.push(s);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n\n    // 整合所有分块总结\n    const combined = summaries.join('\\n\\n');\n    return await mergeSummaries(combined);\n}\n\n/**\n * DeepSeek 生成单块总结\n */\nasync function generateSummaryChunk(text) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `你是一个专业的播客内容分析师。请生成全面、结构化的总结。\n\n【输出语言要求】必须使用简体中文输出，严禁使用繁体中文。例如写\"投资\"而不是\"投資\"，写\"周期\"而不是\"週期\"，写\"经济\"而不是\"經濟\"。\n\n要求：\n1. 提取主要话题和核心观点\n2. 保持逻辑结构清晰\n3. 包含重要的讨论内容、观点和结论\n4. 使用简洁明了的简体中文\n\n【严格排除】赞助商广告、节目资助方信息、播客开头结尾语、制作团队信息。\n\n格式：Markdown，段落之间用双换行分隔，每个段落专注一个主题。`\n            },\n            { role: 'user', content: text }\n        ],\n        temperature: 0.5,\n        max_tokens: 3000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 整合分块总结\n */\nasync function mergeSummaries(combinedSummaries) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `请将以下分段总结整合成一个完整、连贯的播客总结。\n【输出语言要求】必须使用简体中文，严禁繁体中文。例如写\"投资\"不写\"投資\"。\n1. 去除重复内容\n2. 按主题重新组织\n3. 段落之间必须有空行分隔\n4. Markdown格式，简体中文输出\n5. 严格排除广告等无价值内容`\n            },\n            { role: 'user', content: combinedSummaries }\n        ],\n        temperature: 0.3,\n        max_tokens: 4000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 智能分块（按段落和句子边界）\n */\nfunction splitText(text, maxChars) {\n    const chunks = [];\n    const paragraphs = text.split(/\\n\\s*\\n/).filter(p => p.trim());\n    let current = '';\n\n    for (const para of paragraphs) {\n        const test = current + (current ? '\\n\\n' : '') + para;\n        if (test.length > maxChars && current) {\n            chunks.push(current.trim());\n            current = para;\n        } else {\n            current = test;\n        }\n    }\n    if (current.trim()) chunks.push(current.trim());\n\n    // 对仍然超长的块按句子分割\n    const result = [];\n    for (const chunk of chunks) {\n        if (chunk.length <= maxChars) {\n            result.push(chunk);\n        } else {\n            const sentences = chunk.split(/([。！？.!?]+\\s*)/).filter(s => s.trim());\n            let sub = '';\n            for (let i = 0; i < sentences.length; i += 2) {\n                const s = sentences[i] + (sentences[i + 1] || '');\n                if ((sub + s).length > maxChars && sub) {\n                    result.push(sub.trim());\n                    sub = s;\n                } else {\n                    sub += s;\n                }\n            }\n            if (sub.trim()) result.push(sub.trim());\n        }\n    }\n    return result;\n}\n\nfunction sleep(ms) { return new Promise(r => setTimeout(r, ms)); }\n\nmodule.exports = { processAudio, generateSummary, optimizeTranscript };\n"}, "e05c42a5e3db6efd5a6f7c3443ecf3fd32d034ce": {"t": 1785748407.5047245, "n": 11180, "h": "c1849ce1199bf8f1", "c": "/**\n * DeepSeek AI 服务\n * 替代 OpenAI，用于文本优化和总结\n * DeepSeek API 兼容 OpenAI 格式\n */\nconst OpenAI = require('openai');\nconst fs = require('fs');\nconst path = require('path');\nconst { exec } = require('child_process');\nconst { promisify } = require('util');\n\nconst execAsync = promisify(exec);\n\n// 初始化 DeepSeek 客户端（兼容 OpenAI SDK）\nconst deepseek = new OpenAI({\n    apiKey: process.env.DEEPSEEK_API_KEY,\n    baseURL: process.env.DEEPSEEK_BASE_URL || 'https://api.deepseek.com',\n    timeout: 600000,\n    maxRetries: 2\n});\n\nconst DEEPSEEK_MODEL = 'deepseek-chat';\n\nconsole.log(`🤖 AI服务: DeepSeek (${DEEPSEEK_MODEL})`);\n\n/**\n * 生成标准化的文件名\n */\nfunction generateFilePrefix(type, title) {\n    let cleanTitle = title\n        .replace(/\\s*\\|\\s*/g, '-')\n        .replace(/\\s*:\\s*/g, '-')\n        .replace(/[<>:\"/\\\\|?*]/g, '')\n        .replace(/\\s+/g, '_')\n        .replace(/[^\\w一-龥\\-_.]/g, '');\n    if (cleanTitle.length > 30) cleanTitle = cleanTitle.substring(0, 30);\n    const uuid = Math.random().toString(36).substr(2, 6).toUpperCase();\n    return `${type}_${cleanTitle}_${uuid}`;\n}\n\n/**\n * 处理音频文件：转录 + 优化 + 总结\n */\nasync function processAudio(audioFiles, shouldSummarize = false, tempDir = null, podcastTitle = null, sessionId = null, sendProgress = null) {\n    try {\n        console.log(`🤖 开始音频处理`);\n        const files = Array.isArray(audioFiles) ? audioFiles : [audioFiles];\n        console.log(`📄 处理文件数量: ${files.length}`);\n\n        let transcript = '';\n        let savedFiles = [];\n\n        if (files.length === 1) {\n            // 单文件处理 - 调用 Python Whisper 脚本\n            const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n            const filePrefix = generateFilePrefix('raw', podcastTitle || 'Untitled');\n            const pythonPath = process.env.PYTHON_PATH || 'python';\n            const command = `\"${pythonPath}\" \"${scriptPath}\" \"${files[0]}\" --model ${process.env.WHISPER_MODEL || 'base'} --save-transcript \"${tempDir}\" --file-prefix \"${filePrefix}\" --podcast-title \"${podcastTitle || 'Untitled'}\"`;\n\n            console.log(`🎤 Whisper 转录: ${path.basename(files[0])}`);\n            if (sendProgress) sendProgress(30, 'transcription', '语音转录中...');\n\n            const { stdout, stderr } = await execAsync(command, {\n                cwd: path.join(__dirname, '..'),\n                maxBuffer: 1024 * 1024 * 20,\n                timeout: 3600000,\n                env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n            });\n\n            if (stderr && stderr.trim()) console.log(`🔧 Whisper日志: ${stderr.trim()}`);\n\n            const result = JSON.parse(stdout);\n            if (!result.success) throw new Error(result.error || '转录失败');\n\n            transcript = result.text || '';\n            savedFiles = result.savedFiles || [];\n            console.log(`✅ 转录完成: ${transcript.length} 字符`);\n\n            // DeepSeek 智能优化转录文本\n            if (sendProgress) sendProgress(50, 'optimizing', 'AI优化文本中...');\n            let optimizedTranscript = transcript;\n            try {\n                optimizedTranscript = await optimizeTranscript(transcript);\n                console.log(`✅ 文本优化完成: ${optimizedTranscript.length} 字符`);\n\n                // 保存优化后的文本\n                if (savedFiles.length > 0) {\n                    const transcriptFile = savedFiles.find(f => f.type === 'transcript');\n                    if (transcriptFile && fs.existsSync(transcriptFile.path)) {\n                        // 备份原始转录\n                        const backupPath = transcriptFile.path.replace('.md', '_original.md');\n                        if (!fs.existsSync(backupPath)) {\n                            fs.copyFileSync(transcriptFile.path, backupPath);\n                        }\n                        fs.writeFileSync(transcriptFile.path, optimizedTranscript, 'utf8');\n                    }\n                }\n                transcript = optimizedTranscript;\n            } catch (optErr) {\n                console.warn(`⚠️ 文本优化失败，使用原始转录: ${optErr.message}`);\n            }\n\n            // 生成总结\n            let summary = null;\n            if (shouldSummarize) {\n                console.log(`📝 生成总结...`);\n                if (sendProgress) sendProgress(70, 'summary', 'AI生成总结中...');\n                try {\n                    summary = await generateSummary(transcript);\n                    const summaryPrefix = generateFilePrefix('summary', podcastTitle || 'Untitled');\n                    const summaryFileName = `${summaryPrefix}.md`;\n                    const summaryPath = path.join(tempDir, summaryFileName);\n                    fs.writeFileSync(summaryPath, `# 🎙️ ${podcastTitle || '播客总结'}\\n\\n${summary}`, 'utf8');\n                    savedFiles.push({\n                        type: 'summary',\n                        filename: summaryFileName,\n                        path: summaryPath,\n                        size: fs.statSync(summaryPath).size\n                    });\n                    console.log(`📋 总结已保存: ${summaryFileName}`);\n                } catch (sumErr) {\n                    console.error(`❌ 总结生成失败: ${sumErr.message}`);\n                }\n            }\n\n            return {\n                transcript: transcript,\n                summary: summary,\n                language: 'zh',\n                audioDuration: result.duration,\n                savedFiles: savedFiles\n            };\n        }\n\n        // 多文件处理\n        for (let i = 0; i < files.length; i++) {\n            console.log(`🎵 转录片段 ${i + 1}/${files.length}`);\n            const result = await transcribeSingleFile(files[i]);\n            if (result) transcript += result + '\\n\\n';\n        }\n\n        return { transcript: transcript.trim(), summary: null, savedFiles: [] };\n\n    } catch (error) {\n        console.error('❌ 音频处理失败:', error);\n        throw error;\n    }\n}\n\n/**\n * 调用 Whisper 转录单个文件\n */\nasync function transcribeSingleFile(audioPath) {\n    const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n    const pythonPath = process.env.PYTHON_PATH || 'python';\n    const command = `\"${pythonPath}\" \"${scriptPath}\" \"${audioPath}\" --model ${process.env.WHISPER_MODEL || 'base'}`;\n\n    const { stdout } = await execAsync(command, {\n        cwd: path.join(__dirname, '..'),\n        maxBuffer: 1024 * 1024 * 20,\n        timeout: 1200000,\n        env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n    });\n\n    const result = JSON.parse(stdout);\n    return result.success ? result.text : null;\n}\n\n/**\n * DeepSeek 优化转录文本\n */\nasync function optimizeTranscript(rawTranscript) {\n    const maxChars = 6000;\n    if (rawTranscript.length <= maxChars) {\n        return await optimizeChunk(rawTranscript);\n    }\n\n    // 分块处理长文本\n    const chunks = splitText(rawTranscript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块优化`);\n\n    const optimized = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 优化第 ${i + 1}/${chunks.length} 块`);\n        const chunk = await optimizeChunk(chunks[i], i > 0 ? chunks[i - 1].slice(-100) : null);\n        optimized.push(chunk);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n    return optimized.join('\\n\\n');\n}\n\n/**\n * DeepSeek 优化单个文本块\n */\nasync function optimizeChunk(text, prevContext = null) {\n    let contextHint = '';\n    if (prevContext) {\n        contextHint = `[上文续：${prevContext}]\\n\\n`;\n    }\n\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: '你是专业的音频转录文本优化助手。修正错别字、同音字错误，改善语法，添加合适标点，但必须保持原意不变。按话题合理分段，Markdown格式，段落间双换行，不加分隔线。【必须使用简体中文输出，严禁繁体中文。写\"投资\"不写\"投資\"，写\"经济\"不写\"經濟\"。】'\n            },\n            {\n                role: 'user',\n                content: `${contextHint}请优化以下转录文本：\\n\\n${text}`\n            }\n        ],\n        temperature: 0.1,\n        max_tokens: 4096\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * DeepSeek 生成播客总结\n */\nasync function generateSummary(transcript) {\n    const maxChars = 6000;\n    if (transcript.length <= maxChars) {\n        return await generateSummaryChunk(transcript);\n    }\n\n    // 分块总结再整合\n    const chunks = splitText(transcript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块总结`);\n\n    const summaries = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 总结第 ${i + 1}/${chunks.length} 块`);\n        const s = await generateSummaryChunk(chunks[i]);\n        summaries.push(s);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n\n    // 整合所有分块总结\n    const combined = summaries.join('\\n\\n');\n    return await mergeSummaries(combined);\n}\n\n/**\n * DeepSeek 生成单块总结\n */\nasync function generateSummaryChunk(text) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `你是一个专业的播客内容分析师。请生成全面、结构化的总结。\n\n【输出语言要求】必须使用简体中文输出，严禁使用繁体中文。例如写\"投资\"而不是\"投資\"，写\"周期\"而不是\"週期\"，写\"经济\"而不是\"經濟\"。\n\n要求：\n1. 提取主要话题和核心观点\n2. 保持逻辑结构清晰\n3. 包含重要的讨论内容、观点和结论\n4. 使用简洁明了的简体中文\n\n【严格排除】赞助商广告、节目资助方信息、播客开头结尾语、制作团队信息。\n\n格式：Markdown，段落之间用双换行分隔，每个段落专注一个主题。`\n            },\n            { role: 'user', content: text }\n        ],\n        temperature: 0.5,\n        max_tokens: 3000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 整合分块总结\n */\nasync function mergeSummaries(combinedSummaries) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `请将以下分段总结整合成一个完整、连贯的播客总结。\n【输出语言要求】必须使用简体中文，严禁繁体中文。例如写\"投资\"不写\"投資\"。\n1. 去除重复内容\n2. 按主题重新组织\n3. 段落之间必须有空行分隔\n4. Markdown格式，简体中文输出\n5. 严格排除广告等无价值内容`\n            },\n            { role: 'user', content: combinedSummaries }\n        ],\n        temperature: 0.3,\n        max_tokens: 4000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 智能分块（按段落和句子边界）\n */\nfunction splitText(text, maxChars) {\n    const chunks = [];\n    const paragraphs = text.split(/\\n\\s*\\n/).filter(p => p.trim());\n    let current = '';\n\n    for (const para of paragraphs) {\n        const test = current + (current ? '\\n\\n' : '') + para;\n        if (test.length > maxChars && current) {\n            chunks.push(current.trim());\n            current = para;\n        } else {\n            current = test;\n        }\n    }\n    if (current.trim()) chunks.push(current.trim());\n\n    // 对仍然超长的块按句子分割\n    const result = [];\n    for (const chunk of chunks) {\n        if (chunk.length <= maxChars) {\n            result.push(chunk);\n        } else {\n            const sentences = chunk.split(/([。！？.!?]+\\s*)/).filter(s => s.trim());\n            let sub = '';\n            for (let i = 0; i < sentences.length; i += 2) {\n                const s = sentences[i] + (sentences[i + 1] || '');\n                if ((sub + s).length > maxChars && sub) {\n                    result.push(sub.trim());\n                    sub = s;\n                } else {\n                    sub += s;\n                }\n            }\n            if (sub.trim()) result.push(sub.trim());\n        }\n    }\n    return result;\n}\n\nfunction sleep(ms) { return new Promise(r => setTimeout(r, ms)); }\n\nmodule.exports = { processAudio, generateSummary, optimizeTranscript };\n"}, "a987e2b68560378e5eb9441a8a4613ea9b2743fe": {"t": 1785748408.6151142, "n": 11092, "h": "24986af7f5970389", "c": "/**\n * DeepSeek AI 服务\n * 替代 OpenAI，用于文本优化和总结\n * DeepSeek API 兼容 OpenAI 格式\n */\nconst OpenAI = require('openai');\nconst fs = require('fs');\nconst path = require('path');\nconst { exec } = require('child_process');\nconst { promisify } = require('util');\n\nconst execAsync = promisify(exec);\n\n// 初始化 DeepSeek 客户端（兼容 OpenAI SDK）\nconst deepseek = new OpenAI({\n    apiKey: process.env.DEEPSEEK_API_KEY,\n    baseURL: process.env.DEEPSEEK_BASE_URL || 'https://api.deepseek.com',\n    timeout: 600000,\n    maxRetries: 2\n});\n\nconst DEEPSEEK_MODEL = 'deepseek-chat';\n\nconsole.log(`🤖 AI服务: DeepSeek (${DEEPSEEK_MODEL})`);\n\n/**\n * 生成标准化的文件名\n */\nfunction generateFilePrefix(type, title) {\n    let cleanTitle = title\n        .replace(/\\s*\\|\\s*/g, '-')\n        .replace(/\\s*:\\s*/g, '-')\n        .replace(/[<>:\"/\\\\|?*]/g, '')\n        .replace(/\\s+/g, '_')\n        .replace(/[^\\w一-龥\\-_.]/g, '');\n    if (cleanTitle.length > 30) cleanTitle = cleanTitle.substring(0, 30);\n    const uuid = Math.random().toString(36).substr(2, 6).toUpperCase();\n    return `${type}_${cleanTitle}_${uuid}`;\n}\n\n/**\n * 处理音频文件：转录 + 优化 + 总结\n */\nasync function processAudio(audioFiles, shouldSummarize = false, tempDir = null, podcastTitle = null, sessionId = null, sendProgress = null) {\n    try {\n        console.log(`🤖 开始音频处理`);\n        const files = Array.isArray(audioFiles) ? audioFiles : [audioFiles];\n        console.log(`📄 处理文件数量: ${files.length}`);\n\n        let transcript = '';\n        let savedFiles = [];\n\n        if (files.length === 1) {\n            // 单文件处理 - 调用 Python Whisper 脚本\n            const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n            const filePrefix = generateFilePrefix('raw', podcastTitle || 'Untitled');\n            const pythonPath = process.env.PYTHON_PATH || 'python';\n            const command = `\"${pythonPath}\" \"${scriptPath}\" \"${files[0]}\" --model ${process.env.WHISPER_MODEL || 'base'} --save-transcript \"${tempDir}\" --file-prefix \"${filePrefix}\" --podcast-title \"${podcastTitle || 'Untitled'}\"`;\n\n            console.log(`🎤 Whisper 转录: ${path.basename(files[0])}`);\n            if (sendProgress) sendProgress(30, 'transcription', '语音转录中...');\n\n            const { stdout, stderr } = await execAsync(command, {\n                cwd: path.join(__dirname, '..'),\n                maxBuffer: 1024 * 1024 * 20,\n                timeout: 3600000,\n                env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n            });\n\n            if (stderr && stderr.trim()) console.log(`🔧 Whisper日志: ${stderr.trim()}`);\n\n            const result = JSON.parse(stdout);\n            if (!result.success) throw new Error(result.error || '转录失败');\n\n            transcript = result.text || '';\n            savedFiles = result.savedFiles || [];\n            console.log(`✅ 转录完成: ${transcript.length} 字符`);\n\n            // DeepSeek 智能优化转录文本\n            if (sendProgress) sendProgress(50, 'optimizing', 'AI优化文本中...');\n            let optimizedTranscript = transcript;\n            try {\n                optimizedTranscript = await optimizeTranscript(transcript);\n                console.log(`✅ 文本优化完成: ${optimizedTranscript.length} 字符`);\n\n                // 保存优化后的文本\n                if (savedFiles.length > 0) {\n                    const transcriptFile = savedFiles.find(f => f.type === 'transcript');\n                    if (transcriptFile && fs.existsSync(transcriptFile.path)) {\n                        // 备份原始转录\n                        const backupPath = transcriptFile.path.replace('.md', '_original.md');\n                        if (!fs.existsSync(backupPath)) {\n                            fs.copyFileSync(transcriptFile.path, backupPath);\n                        }\n                        fs.writeFileSync(transcriptFile.path, optimizedTranscript, 'utf8');\n                    }\n                }\n                transcript = optimizedTranscript;\n            } catch (optErr) {\n                console.warn(`⚠️ 文本优化失败，使用原始转录: ${optErr.message}`);\n            }\n\n            // 生成总结\n            let summary = null;\n            if (shouldSummarize) {\n                console.log(`📝 生成总结...`);\n                if (sendProgress) sendProgress(70, 'summary', 'AI生成总结中...');\n                try {\n                    summary = await generateSummary(transcript);\n                    const summaryPrefix = generateFilePrefix('summary', podcastTitle || 'Untitled');\n                    const summaryFileName = `${summaryPrefix}.md`;\n                    const summaryPath = path.join(tempDir, summaryFileName);\n                    fs.writeFileSync(summaryPath, `# 🎙️ ${podcastTitle || '播客总结'}\\n\\n${summary}`, 'utf8');\n                    savedFiles.push({\n                        type: 'summary',\n                        filename: summaryFileName,\n                        path: summaryPath,\n                        size: fs.statSync(summaryPath).size\n                    });\n                    console.log(`📋 总结已保存: ${summaryFileName}`);\n                } catch (sumErr) {\n                    console.error(`❌ 总结生成失败: ${sumErr.message}`);\n                }\n            }\n\n            return {\n                transcript: transcript,\n                summary: summary,\n                language: 'zh',\n                audioDuration: result.duration,\n                savedFiles: savedFiles\n            };\n        }\n\n        // 多文件处理\n        for (let i = 0; i < files.length; i++) {\n            console.log(`🎵 转录片段 ${i + 1}/${files.length}`);\n            const result = await transcribeSingleFile(files[i]);\n            if (result) transcript += result + '\\n\\n';\n        }\n\n        return { transcript: transcript.trim(), summary: null, savedFiles: [] };\n\n    } catch (error) {\n        console.error('❌ 音频处理失败:', error);\n        throw error;\n    }\n}\n\n/**\n * 调用 Whisper 转录单个文件\n */\nasync function transcribeSingleFile(audioPath) {\n    const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n    const pythonPath = process.env.PYTHON_PATH || 'python';\n    const command = `\"${pythonPath}\" \"${scriptPath}\" \"${audioPath}\" --model ${process.env.WHISPER_MODEL || 'base'}`;\n\n    const { stdout } = await execAsync(command, {\n        cwd: path.join(__dirname, '..'),\n        maxBuffer: 1024 * 1024 * 20,\n        timeout: 1200000,\n        env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n    });\n\n    const result = JSON.parse(stdout);\n    return result.success ? result.text : null;\n}\n\n/**\n * DeepSeek 优化转录文本\n */\nasync function optimizeTranscript(rawTranscript) {\n    const maxChars = 6000;\n    if (rawTranscript.length <= maxChars) {\n        return await optimizeChunk(rawTranscript);\n    }\n\n    // 分块处理长文本\n    const chunks = splitText(rawTranscript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块优化`);\n\n    const optimized = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 优化第 ${i + 1}/${chunks.length} 块`);\n        const chunk = await optimizeChunk(chunks[i], i > 0 ? chunks[i - 1].slice(-100) : null);\n        optimized.push(chunk);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n    return optimized.join('\\n\\n');\n}\n\n/**\n * DeepSeek 优化单个文本块\n */\nasync function optimizeChunk(text, prevContext = null) {\n    let contextHint = '';\n    if (prevContext) {\n        contextHint = `[上文续：${prevContext}]\\n\\n`;\n    }\n\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: '你是专业的音频转录文本优化助手。修正错别字、同音字错误，改善语法，添加合适标点，但必须保持原意不变。按话题合理分段，使用Markdown格式，段落间用双换行分隔。不要添加分隔线。输出必须使用简体中文。'\n            },\n            {\n                role: 'user',\n                content: `${contextHint}请优化以下转录文本：\\n\\n${text}`\n            }\n        ],\n        temperature: 0.1,\n        max_tokens: 4096\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * DeepSeek 生成播客总结\n */\nasync function generateSummary(transcript) {\n    const maxChars = 6000;\n    if (transcript.length <= maxChars) {\n        return await generateSummaryChunk(transcript);\n    }\n\n    // 分块总结再整合\n    const chunks = splitText(transcript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块总结`);\n\n    const summaries = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 总结第 ${i + 1}/${chunks.length} 块`);\n        const s = await generateSummaryChunk(chunks[i]);\n        summaries.push(s);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n\n    // 整合所有分块总结\n    const combined = summaries.join('\\n\\n');\n    return await mergeSummaries(combined);\n}\n\n/**\n * DeepSeek 生成单块总结\n */\nasync function generateSummaryChunk(text) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `你是一个专业的播客内容分析师。请生成全面、结构化的总结：\n\n要求：\n1. 提取主要话题和核心观点\n2. 保持逻辑结构清晰\n3. 包含重要的讨论内容、观点和结论\n4. 使用简洁明了的**简体中文**输出\n\n**严格排除以下内容：**\n- 赞助商广告和商业推广\n- 节目资助方信息\n- 播客标准开头结尾语\n- 制作团队信息\n\n格式要求：Markdown格式，段落之间用双换行分隔。每个段落专注一个主题。`\n            },\n            { role: 'user', content: text }\n        ],\n        temperature: 0.5,\n        max_tokens: 3000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 整合分块总结\n */\nasync function mergeSummaries(combinedSummaries) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `请将以下分段总结整合成一个完整、连贯的播客总结：\n1. 去除重复内容\n2. 按主题重新组织\n3. 段落之间必须有空行分隔\n4. 使用Markdown格式\n5. 使用简洁明了的**简体中文**输出\n6. 严格排除广告等无价值内容`\n            },\n            { role: 'user', content: combinedSummaries }\n        ],\n        temperature: 0.3,\n        max_tokens: 4000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 智能分块（按段落和句子边界）\n */\nfunction splitText(text, maxChars) {\n    const chunks = [];\n    const paragraphs = text.split(/\\n\\s*\\n/).filter(p => p.trim());\n    let current = '';\n\n    for (const para of paragraphs) {\n        const test = current + (current ? '\\n\\n' : '') + para;\n        if (test.length > maxChars && current) {\n            chunks.push(current.trim());\n            current = para;\n        } else {\n            current = test;\n        }\n    }\n    if (current.trim()) chunks.push(current.trim());\n\n    // 对仍然超长的块按句子分割\n    const result = [];\n    for (const chunk of chunks) {\n        if (chunk.length <= maxChars) {\n            result.push(chunk);\n        } else {\n            const sentences = chunk.split(/([。！？.!?]+\\s*)/).filter(s => s.trim());\n            let sub = '';\n            for (let i = 0; i < sentences.length; i += 2) {\n                const s = sentences[i] + (sentences[i + 1] || '');\n                if ((sub + s).length > maxChars && sub) {\n                    result.push(sub.trim());\n                    sub = s;\n                } else {\n                    sub += s;\n                }\n            }\n            if (sub.trim()) result.push(sub.trim());\n        }\n    }\n    return result;\n}\n\nfunction sleep(ms) { return new Promise(r => setTimeout(r, ms)); }\n\nmodule.exports = { processAudio, generateSummary, optimizeTranscript };\n"}, "ca33bc9c39aaedd5f05ce9e80c65525d7dc302ee": {"t": 1785748409.7196069, "n": 11067, "h": "237f6a6d0b61a300", "c": "/**\n * DeepSeek AI 服务\n * 替代 OpenAI，用于文本优化和总结\n * DeepSeek API 兼容 OpenAI 格式\n */\nconst OpenAI = require('openai');\nconst fs = require('fs');\nconst path = require('path');\nconst { exec } = require('child_process');\nconst { promisify } = require('util');\n\nconst execAsync = promisify(exec);\n\n// 初始化 DeepSeek 客户端（兼容 OpenAI SDK）\nconst deepseek = new OpenAI({\n    apiKey: process.env.DEEPSEEK_API_KEY,\n    baseURL: process.env.DEEPSEEK_BASE_URL || 'https://api.deepseek.com',\n    timeout: 600000,\n    maxRetries: 2\n});\n\nconst DEEPSEEK_MODEL = 'deepseek-chat';\n\nconsole.log(`🤖 AI服务: DeepSeek (${DEEPSEEK_MODEL})`);\n\n/**\n * 生成标准化的文件名\n */\nfunction generateFilePrefix(type, title) {\n    let cleanTitle = title\n        .replace(/\\s*\\|\\s*/g, '-')\n        .replace(/\\s*:\\s*/g, '-')\n        .replace(/[<>:\"/\\\\|?*]/g, '')\n        .replace(/\\s+/g, '_')\n        .replace(/[^\\w一-龥\\-_.]/g, '');\n    if (cleanTitle.length > 30) cleanTitle = cleanTitle.substring(0, 30);\n    const uuid = Math.random().toString(36).substr(2, 6).toUpperCase();\n    return `${type}_${cleanTitle}_${uuid}`;\n}\n\n/**\n * 处理音频文件：转录 + 优化 + 总结\n */\nasync function processAudio(audioFiles, shouldSummarize = false, tempDir = null, podcastTitle = null, sessionId = null, sendProgress = null) {\n    try {\n        console.log(`🤖 开始音频处理`);\n        const files = Array.isArray(audioFiles) ? audioFiles : [audioFiles];\n        console.log(`📄 处理文件数量: ${files.length}`);\n\n        let transcript = '';\n        let savedFiles = [];\n\n        if (files.length === 1) {\n            // 单文件处理 - 调用 Python Whisper 脚本\n            const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n            const filePrefix = generateFilePrefix('raw', podcastTitle || 'Untitled');\n            const pythonPath = process.env.PYTHON_PATH || 'python';\n            const command = `\"${pythonPath}\" \"${scriptPath}\" \"${files[0]}\" --model ${process.env.WHISPER_MODEL || 'base'} --save-transcript \"${tempDir}\" --file-prefix \"${filePrefix}\" --podcast-title \"${podcastTitle || 'Untitled'}\"`;\n\n            console.log(`🎤 Whisper 转录: ${path.basename(files[0])}`);\n            if (sendProgress) sendProgress(30, 'transcription', '语音转录中...');\n\n            const { stdout, stderr } = await execAsync(command, {\n                cwd: path.join(__dirname, '..'),\n                maxBuffer: 1024 * 1024 * 20,\n                timeout: 3600000,\n                env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n            });\n\n            if (stderr && stderr.trim()) console.log(`🔧 Whisper日志: ${stderr.trim()}`);\n\n            const result = JSON.parse(stdout);\n            if (!result.success) throw new Error(result.error || '转录失败');\n\n            transcript = result.text || '';\n            savedFiles = result.savedFiles || [];\n            console.log(`✅ 转录完成: ${transcript.length} 字符`);\n\n            // DeepSeek 智能优化转录文本\n            if (sendProgress) sendProgress(50, 'optimizing', 'AI优化文本中...');\n            let optimizedTranscript = transcript;\n            try {\n                optimizedTranscript = await optimizeTranscript(transcript);\n                console.log(`✅ 文本优化完成: ${optimizedTranscript.length} 字符`);\n\n                // 保存优化后的文本\n                if (savedFiles.length > 0) {\n                    const transcriptFile = savedFiles.find(f => f.type === 'transcript');\n                    if (transcriptFile && fs.existsSync(transcriptFile.path)) {\n                        // 备份原始转录\n                        const backupPath = transcriptFile.path.replace('.md', '_original.md');\n                        if (!fs.existsSync(backupPath)) {\n                            fs.copyFileSync(transcriptFile.path, backupPath);\n                        }\n                        fs.writeFileSync(transcriptFile.path, optimizedTranscript, 'utf8');\n                    }\n                }\n                transcript = optimizedTranscript;\n            } catch (optErr) {\n                console.warn(`⚠️ 文本优化失败，使用原始转录: ${optErr.message}`);\n            }\n\n            // 生成总结\n            let summary = null;\n            if (shouldSummarize) {\n                console.log(`📝 生成总结...`);\n                if (sendProgress) sendProgress(70, 'summary', 'AI生成总结中...');\n                try {\n                    summary = await generateSummary(transcript);\n                    const summaryPrefix = generateFilePrefix('summary', podcastTitle || 'Untitled');\n                    const summaryFileName = `${summaryPrefix}.md`;\n                    const summaryPath = path.join(tempDir, summaryFileName);\n                    fs.writeFileSync(summaryPath, `# 🎙️ ${podcastTitle || '播客总结'}\\n\\n${summary}`, 'utf8');\n                    savedFiles.push({\n                        type: 'summary',\n                        filename: summaryFileName,\n                        path: summaryPath,\n                        size: fs.statSync(summaryPath).size\n                    });\n                    console.log(`📋 总结已保存: ${summaryFileName}`);\n                } catch (sumErr) {\n                    console.error(`❌ 总结生成失败: ${sumErr.message}`);\n                }\n            }\n\n            return {\n                transcript: transcript,\n                summary: summary,\n                language: 'zh',\n                audioDuration: result.duration,\n                savedFiles: savedFiles\n            };\n        }\n\n        // 多文件处理\n        for (let i = 0; i < files.length; i++) {\n            console.log(`🎵 转录片段 ${i + 1}/${files.length}`);\n            const result = await transcribeSingleFile(files[i]);\n            if (result) transcript += result + '\\n\\n';\n        }\n\n        return { transcript: transcript.trim(), summary: null, savedFiles: [] };\n\n    } catch (error) {\n        console.error('❌ 音频处理失败:', error);\n        throw error;\n    }\n}\n\n/**\n * 调用 Whisper 转录单个文件\n */\nasync function transcribeSingleFile(audioPath) {\n    const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n    const pythonPath = process.env.PYTHON_PATH || 'python';\n    const command = `\"${pythonPath}\" \"${scriptPath}\" \"${audioPath}\" --model ${process.env.WHISPER_MODEL || 'base'}`;\n\n    const { stdout } = await execAsync(command, {\n        cwd: path.join(__dirname, '..'),\n        maxBuffer: 1024 * 1024 * 20,\n        timeout: 1200000,\n        env: { ...process.env, PYTHONIOENCODING: 'utf-8' }\n    });\n\n    const result = JSON.parse(stdout);\n    return result.success ? result.text : null;\n}\n\n/**\n * DeepSeek 优化转录文本\n */\nasync function optimizeTranscript(rawTranscript) {\n    const maxChars = 6000;\n    if (rawTranscript.length <= maxChars) {\n        return await optimizeChunk(rawTranscript);\n    }\n\n    // 分块处理长文本\n    const chunks = splitText(rawTranscript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块优化`);\n\n    const optimized = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 优化第 ${i + 1}/${chunks.length} 块`);\n        const chunk = await optimizeChunk(chunks[i], i > 0 ? chunks[i - 1].slice(-100) : null);\n        optimized.push(chunk);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n    return optimized.join('\\n\\n');\n}\n\n/**\n * DeepSeek 优化单个文本块\n */\nasync function optimizeChunk(text, prevContext = null) {\n    let contextHint = '';\n    if (prevContext) {\n        contextHint = `[上文续：${prevContext}]\\n\\n`;\n    }\n\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: '你是专业的音频转录文本优化助手。修正错别字、同音字错误，改善语法，添加合适标点，但必须保持原意不变。按话题合理分段，使用Markdown格式，段落间用双换行分隔。不要添加分隔线。'\n            },\n            {\n                role: 'user',\n                content: `${contextHint}请优化以下转录文本：\\n\\n${text}`\n            }\n        ],\n        temperature: 0.1,\n        max_tokens: 4096\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * DeepSeek 生成播客总结\n */\nasync function generateSummary(transcript) {\n    const maxChars = 6000;\n    if (transcript.length <= maxChars) {\n        return await generateSummaryChunk(transcript);\n    }\n\n    // 分块总结再整合\n    const chunks = splitText(transcript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块总结`);\n\n    const summaries = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 总结第 ${i + 1}/${chunks.length} 块`);\n        const s = await generateSummaryChunk(chunks[i]);\n        summaries.push(s);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n\n    // 整合所有分块总结\n    const combined = summaries.join('\\n\\n');\n    return await mergeSummaries(combined);\n}\n\n/**\n * DeepSeek 生成单块总结\n */\nasync function generateSummaryChunk(text) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `你是一个专业的播客内容分析师。请生成全面、结构化的中文总结：\n\n要求：\n1. 提取主要话题和核心观点\n2. 保持逻辑结构清晰\n3. 包含重要的讨论内容、观点和结论\n4. 使用简洁明了的中文\n\n**严格排除以下内容：**\n- 赞助商广告和商业推广\n- 节目资助方信息\n- 播客标准开头结尾语\n- 制作团队信息\n\n格式要求：Markdown格式，段落之间用双换行分隔。每个段落专注一个主题。`\n            },\n            { role: 'user', content: text }\n        ],\n        temperature: 0.5,\n        max_tokens: 3000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 整合分块总结\n */\nasync function mergeSummaries(combinedSummaries) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `请将以下分段总结整合成一个完整、连贯的播客总结：\n1. 去除重复内容\n2. 按主题重新组织\n3. 段落之间必须有空行分隔\n4. 使用Markdown格式\n5. 使用简洁明了的中文\n6. 严格排除广告等无价值内容`\n            },\n            { role: 'user', content: combinedSummaries }\n        ],\n        temperature: 0.3,\n        max_tokens: 4000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 智能分块（按段落和句子边界）\n */\nfunction splitText(text, maxChars) {\n    const chunks = [];\n    const paragraphs = text.split(/\\n\\s*\\n/).filter(p => p.trim());\n    let current = '';\n\n    for (const para of paragraphs) {\n        const test = current + (current ? '\\n\\n' : '') + para;\n        if (test.length > maxChars && current) {\n            chunks.push(current.trim());\n            current = para;\n        } else {\n            current = test;\n        }\n    }\n    if (current.trim()) chunks.push(current.trim());\n\n    // 对仍然超长的块按句子分割\n    const result = [];\n    for (const chunk of chunks) {\n        if (chunk.length <= maxChars) {\n            result.push(chunk);\n        } else {\n            const sentences = chunk.split(/([。！？.!?]+\\s*)/).filter(s => s.trim());\n            let sub = '';\n            for (let i = 0; i < sentences.length; i += 2) {\n                const s = sentences[i] + (sentences[i + 1] || '');\n                if ((sub + s).length > maxChars && sub) {\n                    result.push(sub.trim());\n                    sub = s;\n                } else {\n                    sub += s;\n                }\n            }\n            if (sub.trim()) result.push(sub.trim());\n        }\n    }\n    return result;\n}\n\nfunction sleep(ms) { return new Promise(r => setTimeout(r, ms)); }\n\nmodule.exports = { processAudio, generateSummary, optimizeTranscript };\n"}, "369723ad7dd34f4b2e44febf054990558cdb4826": {"t": 1785748411.4484403, "n": 10939, "h": "0287bd652e9e5ef9", "c": "/**\n * DeepSeek AI 服务\n * 替代 OpenAI，用于文本优化和总结\n * DeepSeek API 兼容 OpenAI 格式\n */\nconst OpenAI = require('openai');\nconst fs = require('fs');\nconst path = require('path');\nconst { exec } = require('child_process');\nconst { promisify } = require('util');\n\nconst execAsync = promisify(exec);\n\n// 初始化 DeepSeek 客户端（兼容 OpenAI SDK）\nconst deepseek = new OpenAI({\n    apiKey: process.env.DEEPSEEK_API_KEY,\n    baseURL: process.env.DEEPSEEK_BASE_URL || 'https://api.deepseek.com',\n    timeout: 600000,\n    maxRetries: 2\n});\n\nconst DEEPSEEK_MODEL = 'deepseek-chat';\n\nconsole.log(`🤖 AI服务: DeepSeek (${DEEPSEEK_MODEL})`);\n\n/**\n * 生成标准化的文件名\n */\nfunction generateFilePrefix(type, title) {\n    let cleanTitle = title\n        .replace(/\\s*\\|\\s*/g, '-')\n        .replace(/\\s*:\\s*/g, '-')\n        .replace(/[<>:\"/\\\\|?*]/g, '')\n        .replace(/\\s+/g, '_')\n        .replace(/[^\\w一-龥\\-_.]/g, '');\n    if (cleanTitle.length > 30) cleanTitle = cleanTitle.substring(0, 30);\n    const uuid = Math.random().toString(36).substr(2, 6).toUpperCase();\n    return `${type}_${cleanTitle}_${uuid}`;\n}\n\n/**\n * 处理音频文件：转录 + 优化 + 总结\n */\nasync function processAudio(audioFiles, shouldSummarize = false, tempDir = null, podcastTitle = null, sessionId = null, sendProgress = null) {\n    try {\n        console.log(`🤖 开始音频处理`);\n        const files = Array.isArray(audioFiles) ? audioFiles : [audioFiles];\n        console.log(`📄 处理文件数量: ${files.length}`);\n\n        let transcript = '';\n        let savedFiles = [];\n\n        if (files.length === 1) {\n            // 单文件处理 - 调用 Python Whisper 脚本\n            const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n            const filePrefix = generateFilePrefix('raw', podcastTitle || 'Untitled');\n            const pythonPath = process.env.PYTHON_PATH || 'python';\n            const command = `\"${pythonPath}\" \"${scriptPath}\" \"${files[0]}\" --model ${process.env.WHISPER_MODEL || 'base'} --save-transcript \"${tempDir}\" --file-prefix \"${filePrefix}\" --podcast-title \"${podcastTitle || 'Untitled'}\"`;\n\n            console.log(`🎤 Whisper 转录: ${path.basename(files[0])}`);\n            if (sendProgress) sendProgress(30, 'transcription', '语音转录中...');\n\n            const { stdout, stderr } = await execAsync(command, {\n                cwd: path.join(__dirname, '..'),\n                maxBuffer: 1024 * 1024 * 20,\n                timeout: 3600000\n            });\n\n            if (stderr && stderr.trim()) console.log(`🔧 Whisper日志: ${stderr.trim()}`);\n\n            const result = JSON.parse(stdout);\n            if (!result.success) throw new Error(result.error || '转录失败');\n\n            transcript = result.text || '';\n            savedFiles = result.savedFiles || [];\n            console.log(`✅ 转录完成: ${transcript.length} 字符`);\n\n            // DeepSeek 智能优化转录文本\n            if (sendProgress) sendProgress(50, 'optimizing', 'AI优化文本中...');\n            let optimizedTranscript = transcript;\n            try {\n                optimizedTranscript = await optimizeTranscript(transcript);\n                console.log(`✅ 文本优化完成: ${optimizedTranscript.length} 字符`);\n\n                // 保存优化后的文本\n                if (savedFiles.length > 0) {\n                    const transcriptFile = savedFiles.find(f => f.type === 'transcript');\n                    if (transcriptFile && fs.existsSync(transcriptFile.path)) {\n                        // 备份原始转录\n                        const backupPath = transcriptFile.path.replace('.md', '_original.md');\n                        if (!fs.existsSync(backupPath)) {\n                            fs.copyFileSync(transcriptFile.path, backupPath);\n                        }\n                        fs.writeFileSync(transcriptFile.path, optimizedTranscript, 'utf8');\n                    }\n                }\n                transcript = optimizedTranscript;\n            } catch (optErr) {\n                console.warn(`⚠️ 文本优化失败，使用原始转录: ${optErr.message}`);\n            }\n\n            // 生成总结\n            let summary = null;\n            if (shouldSummarize) {\n                console.log(`📝 生成总结...`);\n                if (sendProgress) sendProgress(70, 'summary', 'AI生成总结中...');\n                try {\n                    summary = await generateSummary(transcript);\n                    const summaryPrefix = generateFilePrefix('summary', podcastTitle || 'Untitled');\n                    const summaryFileName = `${summaryPrefix}.md`;\n                    const summaryPath = path.join(tempDir, summaryFileName);\n                    fs.writeFileSync(summaryPath, `# 🎙️ ${podcastTitle || '播客总结'}\\n\\n${summary}`, 'utf8');\n                    savedFiles.push({\n                        type: 'summary',\n                        filename: summaryFileName,\n                        path: summaryPath,\n                        size: fs.statSync(summaryPath).size\n                    });\n                    console.log(`📋 总结已保存: ${summaryFileName}`);\n                } catch (sumErr) {\n                    console.error(`❌ 总结生成失败: ${sumErr.message}`);\n                }\n            }\n\n            return {\n                transcript: transcript,\n                summary: summary,\n                language: 'zh',\n                audioDuration: result.duration,\n                savedFiles: savedFiles\n            };\n        }\n\n        // 多文件处理\n        for (let i = 0; i < files.length; i++) {\n            console.log(`🎵 转录片段 ${i + 1}/${files.length}`);\n            const result = await transcribeSingleFile(files[i]);\n            if (result) transcript += result + '\\n\\n';\n        }\n\n        return { transcript: transcript.trim(), summary: null, savedFiles: [] };\n\n    } catch (error) {\n        console.error('❌ 音频处理失败:', error);\n        throw error;\n    }\n}\n\n/**\n * 调用 Whisper 转录单个文件\n */\nasync function transcribeSingleFile(audioPath) {\n    const scriptPath = path.join(__dirname, '..', 'whisper_transcribe.py');\n    const pythonPath = process.env.PYTHON_PATH || 'python';\n    const command = `\"${pythonPath}\" \"${scriptPath}\" \"${audioPath}\" --model ${process.env.WHISPER_MODEL || 'base'}`;\n\n    const { stdout } = await execAsync(command, {\n        cwd: path.join(__dirname, '..'),\n        maxBuffer: 1024 * 1024 * 20,\n        timeout: 1200000\n    });\n\n    const result = JSON.parse(stdout);\n    return result.success ? result.text : null;\n}\n\n/**\n * DeepSeek 优化转录文本\n */\nasync function optimizeTranscript(rawTranscript) {\n    const maxChars = 6000;\n    if (rawTranscript.length <= maxChars) {\n        return await optimizeChunk(rawTranscript);\n    }\n\n    // 分块处理长文本\n    const chunks = splitText(rawTranscript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块优化`);\n\n    const optimized = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 优化第 ${i + 1}/${chunks.length} 块`);\n        const chunk = await optimizeChunk(chunks[i], i > 0 ? chunks[i - 1].slice(-100) : null);\n        optimized.push(chunk);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n    return optimized.join('\\n\\n');\n}\n\n/**\n * DeepSeek 优化单个文本块\n */\nasync function optimizeChunk(text, prevContext = null) {\n    let contextHint = '';\n    if (prevContext) {\n        contextHint = `[上文续：${prevContext}]\\n\\n`;\n    }\n\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: '你是专业的音频转录文本优化助手。修正错别字、同音字错误，改善语法，添加合适标点，但必须保持原意不变。按话题合理分段，使用Markdown格式，段落间用双换行分隔。不要添加分隔线。'\n            },\n            {\n                role: 'user',\n                content: `${contextHint}请优化以下转录文本：\\n\\n${text}`\n            }\n        ],\n        temperature: 0.1,\n        max_tokens: 4096\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * DeepSeek 生成播客总结\n */\nasync function generateSummary(transcript) {\n    const maxChars = 6000;\n    if (transcript.length <= maxChars) {\n        return await generateSummaryChunk(transcript);\n    }\n\n    // 分块总结再整合\n    const chunks = splitText(transcript, maxChars);\n    console.log(`📄 长文本分为 ${chunks.length} 块总结`);\n\n    const summaries = [];\n    for (let i = 0; i < chunks.length; i++) {\n        console.log(`🔄 总结第 ${i + 1}/${chunks.length} 块`);\n        const s = await generateSummaryChunk(chunks[i]);\n        summaries.push(s);\n        if (i < chunks.length - 1) await sleep(1000);\n    }\n\n    // 整合所有分块总结\n    const combined = summaries.join('\\n\\n');\n    return await mergeSummaries(combined);\n}\n\n/**\n * DeepSeek 生成单块总结\n */\nasync function generateSummaryChunk(text) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `你是一个专业的播客内容分析师。请生成全面、结构化的中文总结：\n\n要求：\n1. 提取主要话题和核心观点\n2. 保持逻辑结构清晰\n3. 包含重要的讨论内容、观点和结论\n4. 使用简洁明了的中文\n\n**严格排除以下内容：**\n- 赞助商广告和商业推广\n- 节目资助方信息\n- 播客标准开头结尾语\n- 制作团队信息\n\n格式要求：Markdown格式，段落之间用双换行分隔。每个段落专注一个主题。`\n            },\n            { role: 'user', content: text }\n        ],\n        temperature: 0.5,\n        max_tokens: 3000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 整合分块总结\n */\nasync function mergeSummaries(combinedSummaries) {\n    const response = await deepseek.chat.completions.create({\n        model: DEEPSEEK_MODEL,\n        messages: [\n            {\n                role: 'system',\n                content: `请将以下分段总结整合成一个完整、连贯的播客总结：\n1. 去除重复内容\n2. 按主题重新组织\n3. 段落之间必须有空行分隔\n4. 使用Markdown格式\n5. 使用简洁明了的中文\n6. 严格排除广告等无价值内容`\n            },\n            { role: 'user', content: combinedSummaries }\n        ],\n        temperature: 0.3,\n        max_tokens: 4000\n    });\n\n    return response.choices[0].message.content.trim();\n}\n\n/**\n * 智能分块（按段落和句子边界）\n */\nfunction splitText(text, maxChars) {\n    const chunks = [];\n    const paragraphs = text.split(/\\n\\s*\\n/).filter(p => p.trim());\n    let current = '';\n\n    for (const para of paragraphs) {\n        const test = current + (current ? '\\n\\n' : '') + para;\n        if (test.length > maxChars && current) {\n            chunks.push(current.trim());\n            current = para;\n        } else {\n            current = test;\n        }\n    }\n    if (current.trim()) chunks.push(current.trim());\n\n    // 对仍然超长的块按句子分割\n    const result = [];\n    for (const chunk of chunks) {\n        if (chunk.length <= maxChars) {\n            result.push(chunk);\n        } else {\n            const sentences = chunk.split(/([。！？.!?]+\\s*)/).filter(s => s.trim());\n            let sub = '';\n            for (let i = 0; i < sentences.length; i += 2) {\n                const s = sentences[i] + (sentences[i + 1] || '');\n                if ((sub + s).length > maxChars && sub) {\n                    result.push(sub.trim());\n                    sub = s;\n                } else {\n                    sub += s;\n                }\n            }\n            if (sub.trim()) result.push(sub.trim());\n        }\n    }\n    return result;\n}\n\nfunction sleep(ms) { return new Promise(r => setTimeout(r, ms)); }\n\nmodule.exports = { processAudio, generateSummary, optimizeTranscript };\n"}}}}