Feature/projects (#18)

* add up to 5 attachments

* multiclause function event handler

* fix incorrect Cog calls

* add default param as "all" so we can start differentiating the types of identifications in the future - projects / diseases

* abstract message sending

* overwrite global application commands

* pass message from projects to message sending and id functions

test/cogs_test.exs

@@ -1,5 +1,90 @@
 defmodule PlantIdDiscordBotTest.Cog do
-  use ExUnit.Case
+  use ExUnit.Case, async: true
   doctest PlantIdDiscordBot.Cog.Info
   doctest PlantIdDiscordBot.Cog.PlantNetMessage
+
+  alias PlantIdDiscordBot.Cog.PlantNetMessage
+
+  @plantnet_api_base_url Application.compile_env(:plantid_discord_bot, :plantnet_api_base_url)
+  @plantnet_api_key Application.compile_env(:plantid_discord_bot, :plantnet_api_key)
+  @image_filenames ["image1.jpg", "image2.jpg", "image3.jpg"]
+
+  describe "build_query_uri/2" do
+    test "all" do
+      uri = PlantNetMessage.build_query_uri(@image_filenames, "all")
+
+      test_uri =
+        @image_filenames
+        |> Enum.reduce(
+          URI.parse("#{@plantnet_api_base_url}/identify/all")
+          |> URI.append_query("api-key=#{@plantnet_api_key}"),
+          fn filename, acc ->
+            URI.append_query(acc, "images=#{filename}")
+          end
+        )
+        |> URI.append_query("nb-results=5")
+        |> URI.append_query("type=kt")
+        |> URI.to_string()
+
+      assert uri == test_uri
+    end
+
+    test "diseases" do
+      uri = PlantNetMessage.build_query_uri(@image_filenames, "diseases")
+
+      test_uri =
+        @image_filenames
+        |> Enum.reduce(
+          URI.parse("#{@plantnet_api_base_url}/diseases/identify")
+          |> URI.append_query("api-key=#{@plantnet_api_key}"),
+          fn filename, acc ->
+            URI.append_query(acc, "images=#{filename}")
+          end
+        )
+        |> URI.append_query("nb-results=5")
+        |> URI.append_query("type=kt")
+        |> URI.to_string()
+
+      assert uri == test_uri
+    end
+
+    test "projects" do
+      uri =
+        PlantNetMessage.build_query_uri(@image_filenames, %{name: "projects", id: "project-id"})
+
+      test_uri =
+        @image_filenames
+        |> Enum.reduce(
+          URI.parse("#{@plantnet_api_base_url}/identify/project-id")
+          |> URI.append_query("api-key=#{@plantnet_api_key}"),
+          fn filename, acc ->
+            URI.append_query(acc, "images=#{filename}")
+          end
+        )
+        |> URI.append_query("nb-results=5")
+        |> URI.append_query("type=kt")
+        |> URI.to_string()
+
+      assert uri == test_uri
+    end
+
+    test "default" do
+      uri = PlantNetMessage.build_query_uri(@image_filenames, "all")
+
+      test_uri =
+        @image_filenames
+        |> Enum.reduce(
+          URI.parse("#{@plantnet_api_base_url}/identify/all")
+          |> URI.append_query("api-key=#{@plantnet_api_key}"),
+          fn filename, acc ->
+            URI.append_query(acc, "images=#{filename}")
+          end
+        )
+        |> URI.append_query("nb-results=5")
+        |> URI.append_query("type=kt")
+        |> URI.to_string()
+
+      assert uri == test_uri
+    end
+  end
 end