#!/usr/bin/env miaou-recipe

# CONSTANTS

GLOBAL_CONF=/etc/sympa/sympa/sympa.conf
MESSAGE_PM=/usr/share/sympa/lib/Sympa/Message.pm
LIST_DATA_DIR=/var/lib/sympa/list_data
FOUND=false

# FUNCTIONS

function fix_personalization {
	if ! grep -q "^personalization_feature.*\*$" $GLOBAL_CONF; then
		/opt/miaou-bash/tools/append_or_replace '^personalization_feature.*$' 'personalization_feature on' $GLOBAL_CONF
		/opt/miaou-bash/tools/append_or_replace '^personalization.mail_apply_on.*$' 'personalization.mail_apply_on footer' $GLOBAL_CONF
		echo 'personalization now enabled'
		FOUND=true
	else
		echo 'personalization already enabled globally!'
	fi
}

function patch_message_pm {
	if [[ -f $MESSAGE_PM ]]; then
		if ! grep -q '^.*qw/subject x-originating-ip message-id date x-original-to x-original-from.*$' "$MESSAGE_PM"; then
			echo 'applying patch message pm'
			/opt/miaou-bash/tools/append_or_replace '^.*qw/subject x-originating-ip message-id date x-original-to.*$' '        qw/subject x-originating-ip message-id date x-original-to x-original-from from to thread-topic content-type/' "$MESSAGE_PM"
			FOUND=true
		else
			echo 'already patched!'
		fi
		message=$(prepend_2lines_of_text_before_existing_line "$MESSAGE_PM" '$data->{sender}  = $self->{sender};' '$data->{gecos}  = $self->{gecos};' '$data->{subject} = $self->{decoded_subject};')
		if [[ $message =~ 'do prepend' ]]; then
			echo 'prepending sender and gecos in message pm'
			FOUND=true
		else
			echo 'sender and gecos already prepended!'
		fi
	else
		echo "file: $MESSAGE_PM not found!" && exit 11
	fi
}

## arg1=file, arg2=text, arg3='existing_line'
function prepend_2lines_of_text_before_existing_line {
	local file="$1"
	local line1="$2"
	local line2="$3"
	local existing="$4"

	[[ ! -f $file ]] && echo "file: $file not found!" && exit 20

	if ! (grep "^$existing$" $file -B2 | grep -qz "$line1.*$line2.*$existing"); then
		echo 'do prepend'
		sed -i "/^$existing$/s/^/$line1\n$line2\n/" $file
	else
		echo 'already done!'
	fi
}

function restart_services {
	$FOUND && systemctl restart sympa wwsympa.socket || true
}

# MAIN

set -Eue
patch_message_pm
fix_personalization
restart_services