[npm] Refactor script (#235)

Make the script more readable, mostly by:

- using the Product and AutoConfig classes,
- removing the use of functions when unnecessary,
- a little bit of renaming and documentation.

This auto method also now support custom regexes and template.

src/npm.py

@@ -1,46 +1,22 @@
-import re
 import sys
+from common import dates
 from common import http
 from common import endoflife
 
 METHOD = "npm"
 
-
-def fetch_releases(npm_id, regex):
-    releases = {}
-
-    if not isinstance(regex, list):
-        regex = [regex]
-
-    url = f"https://registry.npmjs.org/{npm_id}"
-    response = http.fetch_url(url)
-    data = response.json()
-    for version in data["time"]:
-        matches = False
-        for r in regex:
-            if re.match(r, version):
-                matches = True
-
-        release_datetime = data["time"][version]
-        if matches and release_datetime:
-            releases[version] = release_datetime.split("T")[0]
-            print(f"{version}: {releases[version]}")
-
-    return releases
-
-
-def update_product(product_name, configs):
-    versions = {}
-
-    for config in configs:
-        config = {"regex": endoflife.DEFAULT_VERSION_REGEX} | config
-        versions = versions | fetch_releases(config[METHOD], config["regex"])
-
-    endoflife.write_releases(product_name, versions)
-
-
 p_filter = sys.argv[1] if len(sys.argv) > 1 else None
-for product, configs in endoflife.list_products(METHOD, p_filter).items():
-    print(f"::group::{product}")
-    update_product(product, configs)
+for product_name, configs in endoflife.list_products(METHOD, p_filter).items():
+    print(f"::group::{product_name}")
+    product = endoflife.Product(product_name, load_product_data=True)
+    for config in product.get_auto_configs(METHOD):
+        data = http.fetch_url(f"https://registry.npmjs.org/{config.url}").json()
+        for version_str in data["time"]:
+            version_match = config.first_match(version_str)
+            if version_match:
+                version = config.render(version_match)
+                date = dates.parse_datetime(data["time"][version_str])
+                product.declare_version(version, date)
+
+    product.write()
     print("::endgroup::")