Configurazioni dell'app (#27)

* Prompt messi in una cartella apposta
* Aggiorna importazioni demo per riflettere la nuova struttura delle cartelle API
* Aggiunto configurazione dell'applicazione
* Spostato ChatManager in app.interface
* Update README.md
* Aggiornato config per app & api
* Rinominato il modulo NewsAPI
* fix main infinite loop
* API base --> core
* pattern singleton per AppConfig.
* Estratto i tools nella loro cartella --> api/tools
* fix main KeyboardInterrupt
* update tests
* Docker & libs
* fix copilot suggestions

src/app/api/news/newsapi.py

@@ -0,0 +1,54 @@
+import os
+from typing import Any
+import newsapi # type: ignore
+from app.api.core.news import Article, NewsWrapper
+
+
+def extract_article(result: dict[str, Any]) -> Article:
+    article = Article()
+    article.source = result.get("source", {}).get("name", "")
+    article.time = result.get("publishedAt", "")
+    article.title = result.get("title", "")
+    article.description = result.get("description", "")
+    return article
+
+class NewsApiWrapper(NewsWrapper):
+    """
+    A wrapper for the NewsAPI (Documentation: https://newsapi.org/docs/get-started)
+    Requires an API key set in the environment variable NEWS_API_KEY.
+    It is free to use, but has rate limits and restrictions based on the plan type (the free plan is 'developer' with 100 req/day).
+    """
+
+    def __init__(self):
+        api_key = os.getenv("NEWS_API_KEY")
+        assert api_key, "NEWS_API_KEY environment variable not set"
+
+        self.client = newsapi.NewsApiClient(api_key=api_key)
+        self.category = "business" # Cryptocurrency is under business
+        self.language = "en"
+        self.max_page_size = 100
+
+    def __calc_pages(self, limit: int, page_size: int) -> tuple[int, int]:
+        page_size = min(self.max_page_size, limit)
+        pages = (limit // page_size) + (1 if limit % page_size > 0 else 0)
+        return pages, page_size
+
+    def get_top_headlines(self, limit: int = 100) -> list[Article]:
+        pages, page_size = self.__calc_pages(limit, self.max_page_size)
+        articles: list[Article] = []
+
+        for page in range(1, pages + 1):
+            headlines: dict[str, Any] = self.client.get_top_headlines(q="", category=self.category, language=self.language, page_size=page_size, page=page) # type: ignore
+            results = [extract_article(article) for article in headlines.get("articles", [])] # type: ignore
+            articles.extend(results)
+        return articles
+
+    def get_latest_news(self, query: str, limit: int = 100) -> list[Article]:
+        pages, page_size = self.__calc_pages(limit, self.max_page_size)
+        articles: list[Article] = []
+
+        for page in range(1, pages + 1):
+            everything: dict[str, Any] = self.client.get_everything(q=query, language=self.language, sort_by="publishedAt", page_size=page_size, page=page) # type: ignore
+            results = [extract_article(article) for article in everything.get("articles", [])] # type: ignore
+            articles.extend(results)
+        return articles