From b0d9b5782f5e0a7346ae0ce0f76b6f1432db586f Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Mon, 20 Jun 2022 21:41:53 +0200
Subject: [PATCH] [template] Add `inList` function

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 internal/template/slice/slice.go | 11 +++++++++++
 plugins_core.go                  |  2 ++
 wiki/Templating.md               | 15 +++++++++++++++
 3 files changed, 28 insertions(+)
 create mode 100644 internal/template/slice/slice.go

diff --git a/internal/template/slice/slice.go b/internal/template/slice/slice.go
new file mode 100644
index 0000000..17eec4a
--- /dev/null
+++ b/internal/template/slice/slice.go
@@ -0,0 +1,11 @@
+package slice
+
+import (
+	"github.com/Luzifer/go_helpers/v2/str"
+	"github.com/Luzifer/twitch-bot/plugins"
+)
+
+func Register(args plugins.RegistrationArguments) error {
+	args.RegisterTemplateFunction("inList", plugins.GenericTemplateFunctionGetter(str.StringInSlice))
+	return nil
+}
diff --git a/plugins_core.go b/plugins_core.go
index c4b2b6b..7b9157e 100644
--- a/plugins_core.go
+++ b/plugins_core.go
@@ -27,6 +27,7 @@ import (
 	"github.com/Luzifer/twitch-bot/internal/apimodules/overlays"
 	"github.com/Luzifer/twitch-bot/internal/template/numeric"
 	"github.com/Luzifer/twitch-bot/internal/template/random"
+	"github.com/Luzifer/twitch-bot/internal/template/slice"
 	"github.com/Luzifer/twitch-bot/plugins"
 	"github.com/Luzifer/twitch-bot/twitch"
 )
@@ -52,6 +53,7 @@ var (
 		// Template functions
 		numeric.Register,
 		random.Register,
+		slice.Register,
 
 		// API-only modules
 		customevent.Register,
diff --git a/wiki/Templating.md b/wiki/Templating.md
index 1766922..68a6491 100644
--- a/wiki/Templating.md
+++ b/wiki/Templating.md
@@ -184,6 +184,21 @@ Example:
 < test - oops
 ```
 
+#### `inList`
+
+Tests whether a string is in a given list of strings (for conditional templates).
+
+Syntax: `inList "search" "item1" "item2" [...]`
+
+Example:
+
+```
+! !command (.*)
+> !command foo
+# {{ inList (group 1) "foo" "bar" }}
+< true
+```
+
 #### `lastQuoteIndex`
 
 Gets the last quote index in the quote database for the current channel