Merge branch 'feature/35-backend-llm-chat-gpt-integration-s4-10' into 'develop'

Feature/35 backend llm chat gpt integration s4 10

See merge request proj-wise2526-video2document/video2document!35

services/modules/llm-chat_gpt/chatgpt.js

@@ -1,8 +1,131 @@
-module.exports = {
-    name:"chatgpt", // Unique name for our function that will later be used to get the function from the map via "mapFunctions.get("example").function()"
-    type:"llm", // value used to differentiate each module to order them in the UI
-    displayname:"ChatGPT", // The displayname used within the UI
-    async function(parameter){
-        // TODO add code to actually send the transcript to ChatGPT and get a response back
+const fs = require('fs');
+const path = require('path');
+
+const outputDir = path.join(__dirname, "../../../storage/documents"); //  path for output directory
+
+if (!fs.existsSync(outputDir)) {
+    fs.mkdirSync(outputDir, { recursive: true }); // Create output directory if it doesn't exist
+}
+
+// Ensure SAIA API key is set in environment variables: export SAIA_API_KEY="your_api_key_here"
+const SAIA_API_KEY = process.env.SAIA_API_KEY; // Ensure SAIA API key is set in environment variables
+
+const SAIA_URL = "https://chat-ai.academiccloud.de/v1/chat/completions"; //URL for the REST call, used model and action
+
+const module_exports = {
+    name: "llm-saia_openai_gpt",
+    type: "llm",
+    displayname: "GPT 120B",
+    description: "Generates documents using OpenAI GPT OSS 120B via SAIA platform",
+
+    async function(parameter) {
+        try {
+            console.log("SAIA OpenAI GPT module invoked with parameters:", parameter);
+
+            await this.createDocumentFromTranscript( //Call the function to create document with transcript, document type and language
+                parameter.inputTranscriptPath, // Path to input transcript file
+                parameter.documentTypePath, // Path to document type file which is chosen in the front end by the user
+                parameter.language // Language for the document which is chosen in the front end by the user
+            );
+
+        } catch (error) {
+            console.error("Error in SAIA OpenAI GPT module:", error);
+        }
+    },
+
+    createDocumentFromTranscript: async function(transcriptPath, documentTypePath, language = "en") { // default language is English
+        try {
+            const transcript = await fs.promises.readFile(transcriptPath, "utf-8"); //read transcript file from Path
+            const documentType = await fs.promises.readFile(documentTypePath, "utf-8"); //read document type from Path
+            const promptText = `${documentType}, in language ${language}, transcript:\n\n${transcript}`; //combine doc type, language and transcript - Change prompt here if needed
+
+            // --- REST CALL ---
+            const response = await fetch(SAIA_URL, {
+                method: "POST",
+                headers: {
+                    "Authorization": `Bearer ${SAIA_API_KEY}`,
+                    "Accept": "application/json",
+                    "Content-Type": "application/json"
+                },
+                body: JSON.stringify({
+                    model: "openai-gpt-oss-120b",
+                    messages: [
+                        { role: "system", content: "You are a helpful assistant that generates documents from transcripts." },
+                        { role: "user", content: promptText }
+                    ],
+                    temperature: 0
+                })
+            });
+
+            if (!response.ok) { //ok is true when a response was successful
+                const text = await response.text();
+                throw new Error(`SAIA API error (${response.status}): ${text}`);
+            }
+
+            const data = await response.json();
+
+            // Get generated text from response or default to empty string (if null)
+            // SAIA uses OpenAI-compatible structure: data.choices[x].message.content
+            const output = data.choices?.[0]?.message?.content || "";
+
+            let inputTranscriptName = path.basename(transcriptPath, path.extname(transcriptPath)); // Name for the output file 
+            console.log(inputTranscriptName);
+
+            const outPath = path.join(outputDir, `${inputTranscriptName}.md`); // Output file path & name to make naming dynamic. Pulled from input transcript name
+            fs.writeFileSync(outPath, output, "utf8"); // Write output to file
+
+            console.log("Generated document written to:", outPath);
+
+        } catch (error) {
+            console.error("Error generating SAIA content:", error);
+        }
     }
+};
+
+module.exports = module_exports;
+
+// CLI Mode: Allow direct execution
+if (require.main === module) {
+    (async () => {
+        const args = process.argv.slice(2);
+        
+        if (args.length < 2) {
+            console.error("Usage: node llm-openai-gpt.js <transcriptPath> <documentTypePath> [language]");
+            console.error("Example: node llm-openai-gpt.js ./transcript.json ./docType.json de");
+            process.exit(1);
+        }
+
+        const [transcriptPath, documentTypePath, language] = args;
+
+        // Check if API key is set
+        if (!SAIA_API_KEY) {
+            console.error("ERROR: SAIA_API_KEY environment variable is not set!");
+            console.error("Please set it with: export SAIA_API_KEY='your_api_key_here'");
+            process.exit(1);
+        }
+
+        // Check if files exist
+        if (!fs.existsSync(transcriptPath)) {
+            console.error(`ERROR: Transcript file not found: ${transcriptPath}`);
+            process.exit(1);
+        }
+
+        if (!fs.existsSync(documentTypePath)) {
+            console.error(`ERROR: Document type file not found: ${documentTypePath}`);
+            process.exit(1);
+        }
+
+        console.log("Starting document generation...");
+        console.log(`Transcript: ${transcriptPath}`);
+        console.log(`Document Type: ${documentTypePath}`);
+        console.log(`Language: ${language || 'en (default)'}`);
+        
+        await module_exports.createDocumentFromTranscript(
+            transcriptPath,
+            documentTypePath,
+            language || 'en'
+        );
+        
+        console.log("Done!");
+    })();
 }

services/modules/llm-llama/llm-llama.js

@@ -0,0 +1,123 @@
+const fs = require('fs');
+const path = require('path');
+
+const outputDir = path.join(__dirname, "../../../storage/documents");
+
+if (!fs.existsSync(outputDir)) {
+    fs.mkdirSync(outputDir, { recursive: true });
+}
+
+const SAIA_API_KEY = process.env.SAIA_API_KEY;
+const SAIA_URL = "https://chat-ai.academiccloud.de/v1/chat/completions";
+
+const module_exports = {
+    name: "llm-saia_llama_3.3",
+    type: "llm",
+    displayname: "LLAMA",
+    description: "Generates documents using Llama 3.3 70B Instruct via SAIA platform",
+
+    async function(parameter) {
+        try {
+            console.log("SAIA Llama 3.3 70B module invoked with parameters:", parameter);
+
+            await this.createDocumentFromTranscript(
+                parameter.inputTranscriptPath,
+                parameter.documentTypePath,
+                parameter.language
+            );
+
+        } catch (error) {
+            console.error("Error in SAIA Llama 3.3 70B module:", error);
+        }
+    },
+
+    createDocumentFromTranscript: async function(transcriptPath, documentTypePath, language = "en") {
+        try {
+            const transcript = await fs.promises.readFile(transcriptPath, "utf-8");
+            const documentType = await fs.promises.readFile(documentTypePath, "utf-8");
+            const promptText = `${documentType}, in language ${language}, transcript:\n\n${transcript}`;
+
+            // --- REST CALL ---
+            const response = await fetch(SAIA_URL, {
+                method: "POST",
+                headers: {
+                    "Authorization": `Bearer ${SAIA_API_KEY}`,
+                    "Accept": "application/json",
+                    "Content-Type": "application/json"
+                },
+                body: JSON.stringify({
+                    model: "llama-3.3-70b-instruct",  // Korrekter Modellname!
+                    messages: [
+                        { role: "system", content: "You are a helpful assistant that generates documents from transcripts." },
+                        { role: "user", content: promptText }
+                    ],
+                    temperature: 0
+                })
+            });
+
+            if (!response.ok) {
+                const text = await response.text();
+                throw new Error(`SAIA API error (${response.status}): ${text}`);
+            }
+
+            const data = await response.json();
+            const output = data.choices?.[0]?.message?.content || "";
+
+            let inputTranscriptName = path.basename(transcriptPath, path.extname(transcriptPath));
+            console.log(inputTranscriptName);
+
+            const outPath = path.join(outputDir, `${inputTranscriptName}.md`);
+            fs.writeFileSync(outPath, output, "utf8");
+
+            console.log("Generated document written to:", outPath);
+
+        } catch (error) {
+            console.error("Error generating SAIA content:", error);
+        }
+    }
+};
+
+module.exports = module_exports;
+
+if (require.main === module) {
+    (async () => {
+        const args = process.argv.slice(2);
+        
+        if (args.length < 2) {
+            console.error("Usage: node llm-llama-3.3.js <transcriptPath> <documentTypePath> [language]");
+            console.error("Example: node llm-llama-3.3.js ./transcript.json ./docType.json de");
+            process.exit(1);
+        }
+
+        const [transcriptPath, documentTypePath, language] = args;
+
+        if (!SAIA_API_KEY) {
+            console.error("ERROR: SAIA_API_KEY environment variable is not set!");
+            console.error("Please set it with: export SAIA_API_KEY='your_api_key_here'");
+            process.exit(1);
+        }
+
+        if (!fs.existsSync(transcriptPath)) {
+            console.error(`ERROR: Transcript file not found: ${transcriptPath}`);
+            process.exit(1);
+        }
+
+        if (!fs.existsSync(documentTypePath)) {
+            console.error(`ERROR: Document type file not found: ${documentTypePath}`);
+            process.exit(1);
+        }
+
+        console.log("Starting document generation...");
+        console.log(`Transcript: ${transcriptPath}`);
+        console.log(`Document Type: ${documentTypePath}`);
+        console.log(`Language: ${language || 'en (default)'}`);
+        
+        await module_exports.createDocumentFromTranscript(
+            transcriptPath,
+            documentTypePath,
+            language || 'en'
+        );
+        
+        console.log("Done!");
+    })();
+}