From c4e99cd3b95461fa72cbd73fd10b36326c390661 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Fri, 25 Sep 2026 17:58:44 +0200
Subject: [PATCH] add picture to flac

---
 src/lib/flac.sh | 22 +++++++++++++++++++++-
 tests/flac.bats | 31 +++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/src/lib/flac.sh b/src/lib/flac.sh
index 308f358..3acf7c6 100644
--- a/src/lib/flac.sh
+++ b/src/lib/flac.sh
@@ -9,6 +9,26 @@ flac_errlog()
 	return $lastexit
 }
 
+flac_add_picture()
+{
+	local work_path="$1"
+	local flacs=
+	mapfile -t flacs < <(find "$work_path" -name '*.flac' | sort)
+
+	local output=
+	local filepath=
+	local flac=
+	for flac in "${flacs[@]}"; do
+		output=${flac/.flac/-out.flac}
+		filepath=${flac%/*}
+		metaflac \
+			--import-picture-from="3|image/jpeg|||$filepath/cover.jpg" \
+			--output-name="$output" \
+			"$flac"
+		mv "$output" "$flac"
+	done
+}
+
 flac_check_programs()
 {
 	command -v metaflac > /dev/null \
@@ -19,10 +39,10 @@ flac_check_programs()
 flac_encode()
 {
 	local work_path="$1"
-
 	[ -n "$work_path" ] \
 		|| flac_errlog "missing work path" \
 		|| return $?
+	flac_add_picture "$work_path"
 }
 
 flac_check_programs || return $?
\ No newline at end of file
diff --git a/tests/flac.bats b/tests/flac.bats
index d5a03b6..41fd6b5 100755
--- a/tests/flac.bats
+++ b/tests/flac.bats
@@ -3,9 +3,17 @@
 setup() {
 	bats_load_library 'bats-support'
 	bats_load_library 'bats-assert'
+	mkdir --parents "build/tests/output"
+	export METAFLAC_LOG="build/metaflac.log"
 	source "src/lib/flac.sh"
 }
 
+teardown() {
+	rm --recursive --force "build"
+	rm --force "$METAFLAC_LOG"
+	unset METAFLAG_LOG
+}
+
 # bats test_tags=flac:check_programs
 @test "failed: check programs missing metaflac" {
 	command() {
@@ -24,4 +32,27 @@ setup() {
 
 	assert_failure
 	assert_line --index 0 "❌ ERROR: missing work path"
+}
+
+# bats test_tags=flac:addpicture
+@test "success: add picture to flac" {
+	echo "testfile" > "build/tests/output/file.flac"
+	metaflac() {
+		{
+			printf "%s\n" "${#@}"
+			printf "%s\n" "${@}"
+		} > "$METAFLAC_LOG"
+		local file="$3"
+		cp "$file" "${file/.flac/-out.flac}"
+	}
+
+	run flac_encode "build/tests/output"
+
+	assert_success
+	assert_equal "$(awk 'NR==1 {print; exit}' "$METAFLAC_LOG")" "3"
+	assert_equal "$(awk 'NR==2 {print; exit}' "$METAFLAC_LOG")" "--import-picture-from=3|image/jpeg|||build/tests/output/cover.jpg"
+	assert_equal "$(awk 'NR==3 {print; exit}' "$METAFLAC_LOG")" "--output-name=build/tests/output/file-out.flac"
+	assert_equal "$(awk 'NR==4 {print; exit}' "$METAFLAC_LOG")" "build/tests/output/file.flac"
+	[ ! -f "build/tests/output/file-out.flac" ]
+	[ -f "build/tests/output/file.flac" ]
 }
\ No newline at end of file
-- 
2.47.3