From b2eec10d18996c13982911d21911829741600f18 Mon Sep 17 00:00:00 2001
From: Gustav Eek <gustav.eek@fripost.org>
Date: Sat, 24 Oct 2020 08:55:28 +0200
Subject: [PATCH] [event-participant] Inital on Event participation script

Move to this repository from elsewhere.

The script reads an email from stdin and adds sender to a list of
participants for an event.
---
 Makefile          |  1 +
 event-participant | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100755 event-participant

diff --git a/Makefile b/Makefile
index 2950065..74365eb 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,7 @@ INSTALL = $(HOME)/bin
 
 SCRIPTS = \
   confluence-tk \
+  event-participant \
   exiv2-common-edits \
   folkets \
   ip-check \
diff --git a/event-participant b/event-participant
new file mode 100755
index 0000000..6c7664c
--- /dev/null
+++ b/event-participant
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+EVENT="$1"
+CACHE="$HOME/.cache/${0##*/}/events.csv"
+HEADER="participant,date_att,date_cancel"
+EXPR="
+1,/^$/ {
+  /^From:\|^Date:/ {
+    s/^[a-zA-Z]*: *\(.*\)$/\1/
+    p
+  }
+}
+"
+
+if [ -f "$CACHE" ]; then
+    event=$(tail -1 "$CACHE")
+else
+    mkdir -p $(dirname "$CACHE")
+    echo -n "" > "$CACHE"
+fi
+if [ -n "$EVENT" -a "$EVENT" != "$event" ]; then
+    event="$EVENT"
+    echo "$event" >> "$CACHE"
+fi
+if [ -z "$event" ]; then
+    echo "${0##*/}: E: No event file." 1>&2
+    exit 1
+fi
+
+#info=$(cat | sed -n -e "$EXPR" | tr '\n' '|')
+info=$(cat | grep '^From:\|^Date:' | tr '\n' ':')
+
+[[ "$info" =~ (From: )([^:]*) ]]
+participant="${BASH_REMATCH[2]}"
+[[ "$info" =~ (Date: )([^:]*) ]]
+date=$(date -I -d "${BASH_REMATCH[2]}")
+
+echo "${participant},${date}" | tee -a "$event"
+n_t=$(cat "$event" | grep -v "$HEADER"| cut -d, -f2 | grep -v '^$' | wc -l)
+n_c=$(cat "$event" | grep -v "$HEADER"| cut -d, -f3 | grep -v '^$' | wc -l)
+n_p=$(( $n_t - $n_c ))
+echo -ne "At $event:\n   part: $n_p\n   canc: $n_c\n" 1>&2
-- 
2.39.5