1 files changed, 71 insertions, 0 deletions
diff --git a/modules/channels.bash b/modules/channels.bash
new file mode 100644
index 0000000..04c8a3b
--- /dev/null
+++ b/modules/channels.bash
@@ -0,0 +1,71 @@
+# modules/channels.bash
+#
+# Provides persistant storage of channels the bot is in.
+#
+# Settings:
+# CHANNELS_LIST: file to store channel list in
+
+
+if [ -z "$IRCBOT_MODULE" ]; then
+	printf "error: %s is a module for ircbot.bash and should not be run separately\n" "$0"
+	exit 1
+fi
+
+
+channels_list=()
+
+
+# joins channels in the list after connecting
+on_connect() { # no args
+	local ch
+	channels_load
+	for ch in "${channels_list[@]}"; do
+		sendmsg JOIN "$ch"
+	done
+}
+
+# adds a joined channel to the list
+on_self_join() { # args: $1 - channel
+	channels_add "$1"
+}
+
+# removes a channel from the list
+on_self_kick() { # args: $1 - source, $2 - channel, $3 - kick message
+	channels_remove "$2"
+}
+
+# removes a channel from the list
+on_self_part() { # args: $1 - channel, $2 - part message
+	channels_remove "$1"
+}
+
+
+channels_load() { # no args
+	local line
+	channels_list=()
+	if [ -f "$CHANNELS_LIST" ]; then
+		while IFS= read -r line || [ -n "$line" ]; do
+			verbose 'loaded channel %s' "$line"
+			channels_list+=("$line")
+		done < "$CHANNELS_LIST"
+	fi
+}
+
+channels_add() { # args: $1 - channel
+	channels_load
+	verbose 'adding channel %s' "$1"
+	channels_list+=("$1")
+	channels_dump
+}
+
+channels_remove() { # args: $1 - channel
+	channels_load
+	verbose 'removing channel %s' "$1"
+	printf "%s\n" "${channels_list[@]}" | grep -xvF "$1" > "$CHANNELS_LIST" # XXX: ugly hack
+	channels_load
+}
+
+channels_dump() {
+	verbose 'dumping channel list: %s' "${channels_list[*]}"
+	printf "%s\n" "${channels_list[@]}" | sort | uniq > "$CHANNELS_LIST"
+}