Flesh out EDA client a bit more

atst/eda_client.py

@@ -1,3 +1,10 @@
+from csv import DictReader
+import xml.etree.ElementTree as ET
+
+import requests
+from requests.auth import HTTPBasicAuth
+
+
 class EDAClientBase(object):
     def list_contracts(
         self,
@@ -97,8 +104,24 @@ class MockEDAClient(EDAClientBase):
 
 
 class EDAClient(EDAClientBase):
-    def __init__(self, base_url, user_name, user_role):
-        pass
+    def __init__(self, base_url, user_name, user_role, auth_name, auth_pass):
+        self.base_url = base_url
+        self.user_name = user_name
+        self.user_role = user_role
+        self.auth = HTTPBasicAuth(auth_name, auth_pass)
+
+    def _make_url(self, method, **kwargs):
+        query_args = dict(kwargs)
+        query_string = "&".join(
+            ["{}={}".format(key, value) for key, value in query_args.items()]
+        )
+        return "{base_url}/{method}?{query_string}".format(
+            base_url=self.base_url, method=method, query_string=query_string
+        )
+
+    def _get(self, method, **kwargs):
+        url = self._make_url(method, **kwargs)
+        return requests.get(url, auth=self.auth, verify="ssl/server-certs/eda.pem")
 
     def list_contracts(
         self,
@@ -107,11 +130,37 @@ class EDAClient(EDAClientBase):
         cage_code=None,
         duns_number=None,
     ):
-        # TODO: Fetch the contracts CSV and transform them into dictionaries.
-        # https://docs.python.org/3/library/csv.html#csv.DictReader
-        raise NotImplementedError()
+        response = self._get(
+            "wawf_interface.returnContractList",
+            pContract=contract_number,
+            pDelivery_Order=delivery_order,
+            pCage_Code=cage_code,
+            pDuns_Number=duns_number,
+            pUserName=self.user_name,
+            pUser_Role=self.user_role,
+        )
+        lines = response.text.replace("<br />", "").split("\n")
+        return list(DictReader(lines))
 
     def get_contract(self, contract_number, status):
-        # TODO: Fetch the contract XML and transform it into a dictionary.
-        # https://docs.python.org/3.7/library/xml.etree.elementtree.html
-        raise NotImplementedError()
+        response = self._get(
+            "pds_contract_interface.get_xml_doc",
+            pContract=contract_number,
+            pStatus=status,
+        )
+        if response.text.startswith("No data found"):
+            return None
+        return ET.fromstring(response.text)
+
+    def get_clins(self, record_key, clins, cage_code="", duns_number=""):
+        response = self._get(
+            "wawf_interface.returnclinXML",
+            pCage_Code=cage_code,
+            pDuns_Number=duns_number,
+            pUserName=self.user_name,
+            pUser_Role=self.user_role,
+            pRecord_key=record_key,
+            pClins=clins,
+        )
+        # TODO: Parse XML, similar to `get_contract`
+        return response