Update app.py

app.py

@@ -24,15 +24,33 @@ def get_pdf_text(pdf_docs):
 
 # 과제
 # 아래 텍스트 추출 함수를 작성
-def get_text_file(docs):
-    pass    
-    
-def get_csv_file(docs):
-    pass
-
-def get_json_file(docs):
-    pass
-
+def get_text_file(text_docs):
+    text_data = []
+    for doc in docs:
+        if doc.lower().endswith('.txt'):
+            with open(doc, 'r', encoding='utf-8') as file:
+                text = file.read()
+                text_data.append(text)
+    return text_data
+   
+def get_csv_file(csv_docs):
+    csv_data = []
+    for doc in docs:
+        if doc.lower().endswith('.csv'):
+            with open(doc, 'r', newline='', encoding='utf-8') as file:
+                csv_reader = csv.reader(file)
+                data = [row for row in csv_reader]
+                csv_data.append(data)
+    return csv_data
+
+def get_json_file(json_docs):
+    json_data = []
+    for doc in docs:
+        if doc.lower().endswith('.json'):
+            with open(doc, 'r', encoding='utf-8') as file:
+                data = json.load(file)
+                json_data.append(data)
+    return json_data
     
 # 문서들을 처리하여 텍스트 청크로 나누는 함수입니다.
 def get_text_chunks(documents):