From 9a09536cf325283ca5f9696497fafe5716e4516a Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Fri, 25 Sep 2026 19:56:42 +0200
Subject: [PATCH] add mp3 check programs

---
 src/lib/mp3.sh | 28 +++++++++++++++++++++++++
 tests/mp3.bats | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 src/lib/mp3.sh
 create mode 100755 tests/mp3.bats

diff --git a/src/lib/mp3.sh b/src/lib/mp3.sh
new file mode 100644
index 0000000..b2e195e
--- /dev/null
+++ b/src/lib/mp3.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+vorbis_errlog()
+{
+	local lastexit=$?
+	local msg="$1"
+
+	echo "❌ ERROR: $msg"
+	return $lastexit
+}
+
+mp3_check_programs()
+{
+	command -v flac > /dev/null \
+		|| vorbis_errlog "command flac not found" \
+		|| return $?
+	command -v lame > /dev/null \
+		|| vorbis_errlog "command lame not found" \
+		|| return $?
+	command -v eyeD3 > /dev/null \
+		|| vorbis_errlog "command eyeD3 not found" \
+		|| return $?
+	command -v parallel > /dev/null \
+		|| vorbis_errlog "command parallel not found" \
+		|| return $?
+}
+
+mp3_check_programs || return $?
\ No newline at end of file
diff --git a/tests/mp3.bats b/tests/mp3.bats
new file mode 100755
index 0000000..e5ab777
--- /dev/null
+++ b/tests/mp3.bats
@@ -0,0 +1,55 @@
+#!/usr/bin/bats
+
+setup() {
+	bats_load_library 'bats-support'
+	bats_load_library 'bats-assert'
+	source "src/lib/mp3.sh"
+}
+
+# bats test_tags=mp3:check_programs
+@test "failed: check programs missing flac" {
+	command() {
+		[ "$2" != "flac" ] || return 1
+	}
+
+	run mp3_check_programs
+
+	assert_failure
+	assert_line --index 0 "❌ ERROR: command flac not found"
+}
+
+# bats test_tags=mp3:check_programs
+@test "failed: check programs missing lame" {
+	command() {
+		[ "$2" != "lame" ] || return 1
+	}
+
+	run mp3_check_programs
+
+	assert_failure
+	assert_line --index 0 "❌ ERROR: command lame not found"
+}
+
+# bats test_tags=mp3:check_programs
+@test "failed: check programs eyeD3 oggenc" {
+	command() {
+		[ "$2" != "eyeD3" ] || return 1
+	}
+
+	run mp3_check_programs
+
+	assert_failure
+	assert_line --index 0 "❌ ERROR: command eyeD3 not found"
+}
+
+# bats test_tags=mp3:check_programs
+@test "failed: check programs missing parallel" {
+	command() {
+		[ "$2" != "parallel" ] || return 1
+	}
+
+	run mp3_check_programs
+
+	assert_failure
+	assert_line --index 0 "❌ ERROR: command parallel not found"
+}
\ No newline at end of file
-- 
2.47.3