#!/bin/bash

# This script creates/updates the IntelliJ project files by copying the relevant
# .idea and .lift subdirectories from a template project (hello). It also
# creates a .zip file for distribution to students.

# Warning: make sure that the proper Linux file privileges (incluidng group permissions)
#          are set properly. We strongly recommend running from the ~cos126 acccount.

# names of assignments
COURSE_HOME="/n/fs/class/courses/cos126"

# names of assignments
PROJECTS=(hello loops arrays io functions recursion performance oop1 oop2 barchart)

# create files/ subdirectory if necessary
for project in "${PROJECTS[@]}"; do
    mkdir -p "${project}/files"
    chmod 2775 "${project}/files"
done

# remove any pesky Mac OS X .DS_Store files
find . -name '*.DS_Store' -type f -delete

# remove any pesky Mac OS X Icon files
find . -name 'Icon?' -size 0 -type f -delete

# the template project, containing a clean copy of the IntelliJ settings (.lift and .idea directories)
TEMPLATE_PROJECT="hello"

# transfer these IntelliJ settings from autograder to template project
rsync --times "${COURSE_HOME}/assignments/bin/checkstyle-lift.jar"         "${TEMPLATE_PROJECT}/files/.lift/"
rsync --times "${COURSE_HOME}/assignments/bin/checkstyle-coursera.xml"     "${TEMPLATE_PROJECT}/files/.lift/"
rsync --times "${COURSE_HOME}/assignments/bin/checkstyle-suppressions.xml" "${TEMPLATE_PROJECT}/files/.lift/"
rsync --times "${COURSE_HOME}/assignments/bin/spotbugs.xml"                "${TEMPLATE_PROJECT}/files/.lift/"
rsync --times "${COURSE_HOME}/assignments/java-classpath/stdlib.jar"       "${TEMPLATE_PROJECT}/files/.lift/"
rsync --times "${COURSE_HOME}/assignments/java-classpath/introcs.jar"      "${TEMPLATE_PROJECT}/files/.lift/"
chmod 664 "$TEMPLATE_PROJECT"/files/.lift/*

# copy .idea and .lift directories from template projects to all other projects
echo ""
echo "Syncing projects"
echo "------------------------------------------------"
for project in "${PROJECTS[@]}"; do
    # skip if project does not exist or project is the template project
    if [ "$TEMPLATE_PROJECT" == "$project" ] || [ ! -d "$project" ]; then
        continue
    fi
    echo "${project}:"
    rsync --archive                     \
          --quiet                       \
          --exclude 'runConfigurations' \
          --exclude '*.save'            \
          --exclude '.name'             \
          --exclude 'File Header.java'  \
          "${TEMPLATE_PROJECT}/files/.idea/" "${project}/files/.idea/"
    rsync --archive    \
          --quiet      \
          "${TEMPLATE_PROJECT}/files/.lift/" "${project}/files/.lift/"

    # copy iml file
    cp -p "${TEMPLATE_PROJECT}/files/Computer Science.iml" "${project}/files"

    # copy File Header.java if it doesn't exist
    if [ ! -f "${project}/files/.idea/fileTemplates/includes/File Header.java" ]; then
        cp -p "${TEMPLATE_PROJECT}/files/.idea/fileTemplates/includes/File Header.java" "${project}/files/.idea/fileTemplates/includes/File Header.java"
    fi
done

# create .zip files, put files at top level (as Windows and OS X will create directories automatically)
echo ""
echo "Creating/updating zip files"
echo "------------------------------------------------"
for project in "${PROJECTS[@]}"; do
    if [ -d "${project}/files" ]; then
        echo "${project}: "
        # use subshell so that cd is not remembered
        (cd "${project}/files"; zip --recurse-paths --filesync "../${project}.zip" .lift .idea *)
        chmod 664 "${project}/${project}.zip"
        echo ""
    fi
done

chgrp -R coursera .