From 52956c15c9c7dcb631b55f75d77786b52d4f631b Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Mon, 6 Mar 2023 10:16:35 +0300
Subject: oauth2: resources: List all users with access to the resource.

---
 wqflask/wqflask/oauth2/resources.py                | 33 ++++++++--
 .../wqflask/templates/oauth2/view-resource.html    | 73 +++++++++++++++++++++-
 2 files changed, 99 insertions(+), 7 deletions(-)

diff --git a/wqflask/wqflask/oauth2/resources.py b/wqflask/wqflask/oauth2/resources.py
index 872a29c6..be0cb475 100644
--- a/wqflask/wqflask/oauth2/resources.py
+++ b/wqflask/wqflask/oauth2/resources.py
@@ -51,18 +51,39 @@ def create_resource():
 @require_oauth2
 def view_resource(resource_id: uuid.UUID):
     """View the given resource."""
-    # Display the resource's details
-    # Provide edit/delete options
-    # Metadata edit maybe?
+    def __this_user_success__(resource, unlinked_data, users_n_roles, user):
+        return render_template(
+            "oauth2/view-resource.html", resource=resource,
+            unlinked_data=unlinked_data, users_n_roles=users_n_roles,
+            this_user=user)
+
+    def __users_n_roles_success__(resource, unlinked_data, users_n_roles):
+        return oauth2_get("oauth2/user").either(
+            lambda err: render_template(
+                "oauth2/view-resources.html",
+                this_user_error=process_error(err)),
+            lambda usr_dets: __this_user_success__(
+                resource, unlinked_data, users_n_roles, usr_dets))
+
+    def __unlinked_success__(resource, unlinked_data):
+        return oauth2_get(f"oauth2/resource/{resource_id}/users").either(
+            lambda err: render_template(
+                "oauth2/view-resource.html", resource=resource,
+                unlinked_data=unlinked_data,
+                users_n_roles_error=process_error(err)),
+            lambda users_n_roles: __users_n_roles_success__(
+                resource, unlinked_data, users_n_roles))
+        return render_template(
+                "oauth2/view-resource.html", resource=resource, error=None,
+                unlinked_data=unlinked)
+
     def __resource_success__(resource):
         dataset_type = resource["resource_category"]["resource_category_key"]
         return oauth2_get(f"oauth2/group/{dataset_type}/unlinked-data").either(
             lambda err: render_template(
                 "oauth2/view-resource.html", resource=resource,
                 unlinked_error=process_error(err)),
-            lambda unlinked: render_template(
-                "oauth2/view-resource.html", resource=resource, error=None,
-                unlinked_data=unlinked))
+            lambda unlinked: __unlinked_success__(resource, unlinked))
 
     return oauth2_get(f"oauth2/resource/view/{resource_id}").either(
         lambda err: render_template("oauth2/view-resource.html",
diff --git a/wqflask/wqflask/templates/oauth2/view-resource.html b/wqflask/wqflask/templates/oauth2/view-resource.html
index fb44560b..e8a3d8cb 100644
--- a/wqflask/wqflask/templates/oauth2/view-resource.html
+++ b/wqflask/wqflask/templates/oauth2/view-resource.html
@@ -12,6 +12,7 @@
   <div class="container-fluid">
 
     <div class="row">
+      <h3>Resource Details</h3>
       {%if error %}
       <span class="glyphicon glyphicon-exclamation-sign text-danger">
       </span>
@@ -41,6 +42,7 @@
     </div>
 
     <div class="row">
+      <h3>Resource Data</h3>
       <table class="table">
 	<caption>Resource Data</caption>
 	<thead>
@@ -88,6 +90,7 @@
     </div>
 
     <div class="row">
+      <h3>Unlinked Data</h3>
       <table class="table">
 	<caption>Link Data</caption>
 	<thead>
@@ -125,7 +128,7 @@
 	    </td>
 	  </tr>
 	  {%else%}
-	  <span class="glyphicon glyphicon-info-sign text-danger">
+	  <span class="glyphicon glyphicon-info-sign text-info">
 	  </span>
 	  &nbsp;
 	  <strong class="text-info">No data to link.</strong>
@@ -135,6 +138,74 @@
       </table>
     </div>
 
+    <div class="row">
+      <h3>User Roles</h3>
+      {%if users_n_roles_error is defined%}
+      {{display_error("Users and Roles", users_n_roles_error)}}
+      {%else%}
+      <table class="table">
+	<caption>User Roles</caption>
+	<thead>
+	  <tr>
+	    <th>User Email</th>
+	    <th>User Name</th>
+	    <th>User Group</th>
+	    <th colspan="2">Assigned Roles</th>
+	  </tr>
+	</thead>
+	<tbody>
+	  {%for user_row in users_n_roles%}
+	  <tr>
+	    <td rowspan="{{user_row.roles | length + 1}}">{{user_row.user.email}}</td>
+	    <td rowspan="{{user_row.roles | length + 1}}">{{user_row.user.name}}</td>
+	    <td rowspan="{{user_row.roles | length + 1}}">
+	      {{user_row.user_group.group_name}}</td>
+	    <th>Role</th>
+	    <th>Action</th>
+	  </tr>
+	  {%for grole in user_row.roles%}
+	  <tr>
+	    <td>
+	      <a href="{{url_for(
+		       'oauth2.group.group_role',
+		       group_role_id=grole.group_role_id)}}"
+		 title="Details for '{{grole.role.role_name}}' role">
+		{{grole.role.role_name}}
+	      </a>
+	    </td>
+	    <td>
+	      <form action="#/role/id/unassign/user" action="POST">
+		<input type="hidden" name="user_id"
+		       value="{{user_row.user.user_id}}" />
+		<input type="hidden" name="group_role_id"
+		       value="{{grole.group_role_id}}">
+		<input type="submit"
+		       value="Unassign"
+		       class="btn btn-danger"
+		       {%if user_row.user.user_id==this_user.user_id%}
+		       disabled="disabled"
+		       {%endif%}>
+	      </form>
+	    </td>
+	  </tr>
+	  {%endfor%}
+	  {%else%}
+	  <tr>
+	    <td colspan="5">
+	      <span class="glyphicon glyphicon-info-sign text-info">
+	      </span>
+	      &nbsp;
+	      <span class="text-info">
+		There are no users assigned any role for this resource.
+	      </span>
+	    </td>
+	  </tr>
+	  {%endfor%}
+	</tbody>
+      </table>
+      {%endif%}
+    </div>
+
   </div>
 
 </div>
-- 
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