refactor: use JSON for configurations

config.go

@@ -1,5 +1,10 @@
 package main
 
+import (
+	"embed"
+	_ "embed"
+)
+
 type Config struct {
 	Input string `arg:"" help:"Code to screenshot." optional:""`
 
@@ -39,50 +44,8 @@ type Font struct {
 	Size   float64 `help:"Font size to use for code." placeholder:"14"`
 }
 
-var configs = map[string]string{
-	"base": `{
-	"window": false,
-	"border": {
-		"radius": 0,
-		"width": 0,
-		"color": "#515151"
-	},
-	"shadow": {
-		"blur": 0,
-		"x": 0,
-		"y": 0
-	},
-	"padding": [20, 40, 20, 20],
-	"margin": "0",
-	"background": "#FFFFFF",
-	"font": {
-		"family": "JetBrains Mono",
-		"size": 14
-	},
-	"line_height": 1.2
-}`,
-	"full": `{
-	"window": true,
-	"border": {
-		"radius": 8,
-		"width": 1,
-		"color": "#515151"
-	},
-	"shadow": {
-		"blur": 24,
-		"x": 0,
-		"y": 12
-	},
-	"padding": [20, 40, 20, 20],
-	"margin": [50, 60, 100, 60],
-	"background": "#FFFFFF",
-	"font": {
-		"family": "JetBrains Mono",
-		"size": 14
-	},
-	"line_height": 1.2
-}`,
-}
+//go:embed configurations/*
+var configs embed.FS
 
 func expandPadding(p []int) []int {
 	switch len(p) {

config_test.go

@@ -1,15 +1,29 @@
 package main
 
 import (
-	"strings"
 	"testing"
 
 	"github.com/alecthomas/kong"
 )
 
 func TestConfig(t *testing.T) {
-	for _, c := range configs {
-		_, err := kong.JSON(strings.NewReader(c))
+	dir := "configurations"
+
+	entries, err := configs.ReadDir(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(entries) != 2 {
+		t.Fatal(entries)
+	}
+
+	for _, entry := range entries {
+		f, err := configs.Open(dir + "/" + entry.Name())
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = kong.JSON(f)
 		if err != nil {
 			t.Fatal(err)
 		}

configurations/base.json

@@ -0,0 +1,26 @@
+{
+  "window": false,
+  "border": {
+    "radius": 0,
+    "width": 0,
+    "color": "#515151"
+  },
+  "shadow": {
+    "blur": 0,
+    "x": 0,
+    "y": 0
+  },
+  "padding": [
+    20,
+    40,
+    20,
+    20
+  ],
+  "margin": "0",
+  "background": "#FFFFFF",
+  "font": {
+    "family": "JetBrains Mono",
+    "size": 14
+  },
+  "line_height": 1.2
+}

configurations/full.json

@@ -0,0 +1,31 @@
+{
+  "window": true,
+  "border": {
+    "radius": 8,
+    "width": 1,
+    "color": "#515151"
+  },
+  "shadow": {
+    "blur": 24,
+    "x": 0,
+    "y": 12
+  },
+  "padding": [
+    20,
+    40,
+    20,
+    20
+  ],
+  "margin": [
+    50,
+    60,
+    100,
+    60
+  ],
+  "background": "#FFFFFF",
+  "font": {
+    "family": "JetBrains Mono",
+    "size": 14
+  },
+  "line_height": 1.2
+}

main.go

@@ -35,16 +35,15 @@ func main() {
 	_ = kong.Parse(&config,
 		kong.Help(helpPrinter))
 
-	c, ok := configs[config.Config]
-	if !ok {
-		b, err := os.ReadFile(config.Config)
-		c = string(b)
+	c, err := configs.Open("configurations/" + config.Config + ".json")
+	if err != nil {
+		c, err = os.Open(config.Config)
 		if err != nil {
-			c = configs["base"]
+			c, _ = configs.Open("configurations/base.json")
 		}
 	}
 
-	r, err := kong.JSON(strings.NewReader(c))
+	r, err := kong.JSON(c)
 	if err != nil {
 		log.Fatal("invalid json configuration", "error", err)
 	}