From 2da5ca37023c2ec5cd9b3e12a2fe7caa3f6925da Mon Sep 17 00:00:00 2001
From: David Allen <davidallendj@gmail.com>
Date: Tue, 19 Aug 2025 21:33:58 -0600
Subject: [PATCH] feat: added jinja2 and userdata plugins

---
 pkg/plugin.go           | 10 ++++----
 pkg/plugins/jinja2.go   | 55 +++++++++++++++++++++++++++++++++++------
 pkg/plugins/userdata.go | 28 +++++++++++++++++++++
 3 files changed, 80 insertions(+), 13 deletions(-)
 create mode 100644 pkg/plugins/userdata.go

diff --git a/pkg/plugin.go b/pkg/plugin.go
index d7ff3e4..b3841a7 100644
--- a/pkg/plugin.go
+++ b/pkg/plugin.go
@@ -1,5 +1,9 @@
 package configurator
 
+import (
+	"git.towk2.me/towk/configurator/pkg/storage"
+)
+
 type Plugin interface {
 	Name() string
 	Version() string
@@ -7,10 +11,6 @@ type Plugin interface {
 	Metadata() map[string]string
 
 	Init() error
-	Run(args []string) error
+	Run(data storage.KVStore, args []string) error
 	Cleanup() error
 }
-
-func RunPlugin() {
-
-}
diff --git a/pkg/plugins/jinja2.go b/pkg/plugins/jinja2.go
index 9cb515d..ffbbd77 100644
--- a/pkg/plugins/jinja2.go
+++ b/pkg/plugins/jinja2.go
@@ -1,19 +1,58 @@
 package plugin
 
+import (
+	"bytes"
+
+	"git.towk2.me/towk/configurator/pkg/storage"
+	"github.com/nikolalohinski/gonja/v2"
+	"github.com/nikolalohinski/gonja/v2/exec"
+)
+
 type Jinja2 struct{}
 
-func Name() string        { return "jinja2" }
-func Version() string     { return "test" }
-func Description() string { return "Renders Jinja 2 templates" }
-func Metadata() map[string]string {
+func (p *Jinja2) Name() string        { return "jinja2" }
+func (p *Jinja2) Version() string     { return "test" }
+func (p *Jinja2) Description() string { return "Renders Jinja 2 templates" }
+func (p *Jinja2) Metadata() map[string]string {
 	return map[string]string{
 		"author.name":  "David J. Allen",
 		"author.email": "davidallendj@gmail.com",
 	}
 }
 
-func Init() {
-	// initialize Jinja2 (gonja)
+func (p *Jinja2) Init() error {
+	// nothing to initialize
+	return nil
+}
+
+func (p *Jinja2) Run(data storage.KVStore, args []string) error {
+	// render the files using Jinja 2 from args
+	newContent := []string{}
+	for _, arg := range args {
+		var (
+			context  *exec.Context
+			template *exec.Template
+			output   bytes.Buffer
+			err      error
+		)
+		template, err = gonja.FromString(arg)
+		if err != nil {
+			panic(err)
+		}
+
+		context = exec.NewContext(data.GetData().(map[string]any))
+		if err = template.Execute(&output, context); err != nil { // Prints: Hello Bob!
+			panic(err)
+		}
+		newContent = append(newContent, output.String())
+	}
+
+	// write back to the data storage
+	data.Set("out", newContent)
+	return nil
+}
+
+func (p *Jinja2) Cleanup() error {
+	// nothing to clean up
+	return nil
 }
-func Run()     {}
-func Cleanup() {}
diff --git a/pkg/plugins/userdata.go b/pkg/plugins/userdata.go
new file mode 100644
index 0000000..4b274b9
--- /dev/null
+++ b/pkg/plugins/userdata.go
@@ -0,0 +1,28 @@
+package plugin
+
+import "git.towk2.me/towk/configurator/pkg/storage"
+
+type UserData struct{}
+
+func (p *UserData) Name() string        { return "jinja2" }
+func (p *UserData) Version() string     { return "test" }
+func (p *UserData) Description() string { return "Renders Jinja 2 templates" }
+func (p *UserData) Metadata() map[string]string {
+	return map[string]string{
+		"author.name":  "David J. Allen",
+		"author.email": "davidallendj@gmail.com",
+	}
+}
+
+func (p *UserData) Init() error {
+	// nothing to initialize
+	return nil
+}
+
+func (p *UserData) Run(data storage.KVStore, args []string) error {
+	return nil
+}
+
+func (p *UserData) Clean() error {
+	return nil
+}