From 262af22115291863609319b6b0f313873891e15f Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Sat, 28 Sep 2024 11:26:17 +0300
Subject: add Validation

---
 cmd/gos/main.go            |  4 ++++
 internal/config/args.go    | 18 +++++++++++++++++-
 internal/schedule/stats.go |  1 -
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/cmd/gos/main.go b/cmd/gos/main.go
index 1248239..2a457d4 100644
--- a/cmd/gos/main.go
+++ b/cmd/gos/main.go
@@ -29,6 +29,10 @@ func main() {
 		Lookback:  time.Duration(*lookback) * time.Hour * 24,
 	}
 
+	if err := args.Validate(); err != nil {
+		log.Fatal(err)
+	}
+
 	if *version {
 		fmt.Printf("This is Gos version %s; (C) by Paul Buetow\n", versionStr)
 		fmt.Println("https://codeberg.org/snonux/gos")
diff --git a/internal/config/args.go b/internal/config/args.go
index b71c53e..78b55de 100644
--- a/internal/config/args.go
+++ b/internal/config/args.go
@@ -1,6 +1,13 @@
 package config
 
-import "time"
+import (
+	"fmt"
+	"slices"
+	"strings"
+	"time"
+)
+
+var validPlatforms = []string{"mastodon", "linkedin"}
 
 type Args struct {
 	GosDir    string
@@ -8,3 +15,12 @@ type Args struct {
 	Platforms []string
 	Lookback  time.Duration
 }
+
+func (a Args) Validate() error {
+	for _, platform := range a.Platforms {
+		if !slices.Contains(validPlatforms, strings.ToLower(platform)) {
+			return fmt.Errorf("Platform %s not supported", platform)
+		}
+	}
+	return nil
+}
diff --git a/internal/schedule/stats.go b/internal/schedule/stats.go
index d6cbf20..a969272 100644
--- a/internal/schedule/stats.go
+++ b/internal/schedule/stats.go
@@ -52,7 +52,6 @@ func (s *stats) gatherPostedStats(dir string, lookbackTime time.Time) error {
 	)
 
 	var errs []error
-	// TODO: Maybe refactor to include in ReadDirFilter filter
 	for filePath := range ch {
 		entryTime, err := parseEntryPath(filePath)
 		if err != nil {
-- 
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