Implementation

1 files changed, 82 insertions, 0 deletions

diff --git a/create_metadata_show.sh b/create_metadata_show.sh
new file mode 100755
index 0000000..e447661
--- /dev/null
+++ b/create_metadata_show.sh
@@ -0,0 +1,82 @@
+#!/bin/bash
+# Creates metadata for a show
+# Kaotisk Hund 2024
+#
+# Output should be:
+# {
+#   "artist":...,
+#   "title":...,
+#   "duration":...,
+#   "published_on":...,
+#   "created_on":...,
+#   "hash":...,
+#   "mimetype":...,
+#   "filename":...,
+#   "file-extension":...
+# }
+#
+# Accept one argument, the targeted file
+if [ ! -z $1 ] && [ -n "$1" ]
+then
+    filename="$1"
+else
+    echo "No filename given"
+    exit 1
+fi
+# Check if file exists
+if [ ! -f "${filename}" ]
+then
+    echo "File doesn't exist"
+    exit 1
+fi
+# ❯ file QmNcDk7jn8pGtt3UWZnKDPSGmGwFNkBUyXHCD5H9bdZ2Le.ogx
+# QmNcDk7jn8pGtt3UWZnKDPSGmGwFNkBUyXHCD5H9bdZ2Le.ogx: Ogg data, Vorbis audio, stereo, 44100 Hz, ~192000 bps, created by: Xiph.Org libVorbis I
+# 
+file ${filename} | grep 'Ogg data, Vorbis audio,' 1>/dev/null 2>&1
+if [ $? -eq 0 ]
+then
+    mimetype='audio/ogg'
+else
+    echo "Unknown file type"
+    exit 1
+fi
+hashstring="$(sha512sum ${filename}|cut -d ' ' -f 1)"
+if [ -f "./hashes/${hashstring}" ]
+then
+    echo "File already exists"
+    exit 1
+fi
+
+artist="$(ogginfo ${filename} | grep -i ARTIST | cut -d '=' -f 2-)"
+title="$(ogginfo ${filename} | grep -i TITLE | cut -d '=' -f 2-)"
+duration="$(ogginfo ${filename} | grep 'Playback length' | cut -d ':' -f 2-)"
+published_on="$(date -u +%s)000"
+dmins="$(echo ${duration}|cut -d 'm' -f 1)"
+dsecs="$(echo ${duration}|cut -d ':' -f 2|cut -d '.' -f 1)"
+dmil="$(echo ${duration}|cut -d ':' -f 2|cut -d '.' -f 2|cut -d 's' -f 1)"
+duration="$(echo -n $(($(( ${dmins} * 60)) + ${dsecs}))${dmil})"
+created_on="$(echo -n $((${published_on} - ${duration})))"
+file_extension="$(echo -n $filename|rev|cut -d '.' -f 1|rev)"
+
+temp_file="$(mktemp)"
+
+(
+cat >&1 <<EOF
+{
+    "type":"show",
+    "artist":"${artist}",
+    "title":"${title}",
+    "published_on":"${published_on}",
+    "created_on":"${created_on}",
+    "duration":"${duration}",
+    "hash":"${hashstring}",
+    "mimetype":"${mimetype}",
+    "file_extension":"${file_extension}",
+    "filename":"${filename}"
+}
+EOF
+)| jq -c -M >  ${temp_file}
+show_hash="$(sha512sum ${temp_file} | cut -d ' ' -f 1)"
+
+cp ${filename} ./hashes/${hashstring}
+mv ${temp_file} ./hashes/${show_hash}