#!/bin/sh

# add ; to end echo of sbook_exercise block
# delete instructions block
sed -i 's/echo "<span class=\\"sbook_exercise_no\\">".$activity->activity_id."<\/span> <span class=\\"sbook_instructions\\">".$activity->instructions."<\/span>";/echo "<span class=\\"sbook_exercise_no\\">".$activity->activity_id."<\/span>";/g' *inc

# create if clause for activity_lead_in before instructions_demo block
##sed -i '/$instructions_demo = trim($activity->instructions_demo);/i
# create if clause for activity_lead_in after sbook_exercise_no block
sed -i '/echo "<span class=\\"sbook_exercise_no\\">".$activity->activity_id."<\/span>";/ a\
if (!empty($activity->activity_lead_in)) {\
echo "<span class=\\"sbook_activity_lead_in\\">".$activity->activity_lead_in."<\/span>\\n";\
}\
if (!empty($activity->instructions)) {\
echo "<span class=\\"sbook_instructions\\">".$activity->instructions."<\/span>";\
}\
' *.inc

## sed -i 's/echo "<span class=\\"sbook_exercise_no\\">".$activity->activity_id."<\/span> <span class=\\"sbook_instructions\\">".$activity->instructions."<\/span>";/if (!empty($activity->activity_lead_in)) { echo "<span class=\\"sbook_exercise_no\\">".$activity->activity_id."<\/span> <div class=\\"sbook_activity_lead_in\\">".$activity->activity_lead_in."<\/div> <span class=\\"sbook_instructions\\">".$activity->instructions."<\/span>"; } else { echo "<span class=\\"sbook_exercise_no\\">".$activity->activity_id."<\/span> <span class=\\"sbook_instructions\\">".$activity->instructions."<\/span>"; }/g' *.inc