github/api: add `search_issue` service in Repo

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/github/api.nit b/lib/github/api.nit
index 25f17a9..ea516fa 100644 (file)
--- a/lib/github/api.nit
+++ b/lib/github/api.nit
@@ -428,6 +428,27 @@ class Repo
                return res
        end
 
+       # Search issues in this repo form an advanced query.
+       #
+       # Example:
+       #
+       # ~~~nitish
+       # var issues = repo.search_issues("is:open label:need_review")
+       # ~~~
+       #
+       # See <https://developer.github.com/v3/search/#search-issues>.
+       fun search_issues(query: String): nullable Array[Issue] do
+               query = "search/issues?q={query} repo:{full_name}"
+               var response = api.get(query)
+               if api.was_error then return null
+               var arr = response.as(JsonObject)["items"].as(JsonArray)
+               var res = new Array[Issue]
+               for obj in arr do
+                       res.add new Issue.from_json(api, self, obj.as(JsonObject))
+               end
+               return res
+       end
+
        # Get the last published issue.
        fun last_issue: nullable Issue do
                var array = api.get("repos/{full_name}/issues")