#!/bin/bash

dbquery() {
	mysql -s -s -e "$*" trac
}

# main function
main() {
	echo

	# project_name may not be an empty string and must be >= 3 characters
	while [[ ${#project_name} -lt 3 ]]
	do
		eask_str "a project name (min 3 chars)"
		project_name=${REPLY}
	done

	if [[ -n $(dbquery "SELECT id FROM project WHERE project_name = '${project_name}'") ]]
	then
		eerror "Project ${project_name} already exists."
	fi

	eask_str "a project description"
	project_desc=${REPLY}

	# svn_name may not be an empty string and must be >= 3 characters
	eask_str "a gforge svn repository name (LEAVE BLANK if this is a new project)"
	gforge_name=${REPLY}

	if [[ -n ${gforge_name} && ! -d /mnt/gforge/var/lib/gforge/svn/${gforge_name} ]]
	then
		eerror "Repository ${gforge_name} does not exists."
	fi

	# who requests the project ?
	while [[ -z ${user_name} ]]
	do
		eask_str "username of applicant"
		user_name=${REPLY}
	done

	user_email=$(dbquery "SELECT email FROM user WHERE login = '${user_name}'")
	if [[ -z ${user_email} ]]
	then
		eerror "Username ${user_name} does not exist."
	fi

	einfo
	einfo "$(color yellow)public project:$(color) read access for everyone with a spline-dev account." \
		"write access only for project members. this is the default."
	einfo "$(color yellow)private project:$(color) read and write access only for project members."
	einfo
	eask_bool "Should the project be private?" n
	project_closed=${REPLY}

	svn_home=${SVN_ROOT}/${project_name}
	trac_home=${TRAC_ROOT}/${project_name}
	trac_db=trac_${project_name}

	if [[ -z ${gforge_name} ]]
	then
		eheading "creating new subversion directory"
		eexec svnadmin create ${svn_home}
		tmpdir=$(mktemp -d)
		eexec mkdir -p ${tmpdir}/{trunk,tags,branches}
		eexec svn -q import -m "initial import for project ${project_name}" ${tmpdir} file://${svn_home}
		eexec chown -R apache:apache ${svn_home}
		eexec rm -rf ${tmpdir}
	else
		eheading "using existing gforge repository"
		eexec svnadmin create ${svn_home}
		tmpfile=$(mktemp)
		svnadmin dump /mnt/gforge/var/lib/gforge/svn/${gforge_name} > ${tmpfile}
		svnadmin load ${svn_home} < ${tmpfile}
		rm -f ${tmpfile}
	fi

	eheading "creating new trac project"
	eexec mysqladmin create ${trac_db}
	eexec trac-admin ${trac_home} initenv --inherit=${TRAC_INI} ${project_name} \
		"mysql://${MYSQL_USER}:${MYSQL_PASS}@${MYSQL_HOST}/${trac_db}" svn ${svn_home}
	eexec sed -i -e "/^name =/a\\descr = ${project_desc}\\" ${trac_home}/conf/trac.ini

	if [[ ${project_closed} == y ]]
	then
		for perm in BROWSER_VIEW CHANGESET_VIEW FILE_VIEW LOG_VIEW MILESTONE_VIEW \
			REPORT_SQL_VIEW REPORT_VIEW ROADMAP_VIEW SEARCH_VIEW TICKET_VIEW \
			TIMELINE_VIEW WIKI_VIEW
		do
			eexec trac-admin ${trac_home} permission remove anonymous ${perm}
		done
	fi

	for perm in TICKET_CREATE TICKET_MODIFY WIKI_CREATE WIKI_MODIFY
	do
		eexec trac-admin ${trac_home} permission remove authenticated ${perm}
	done

	eexec trac-admin ${trac_home} permission add authenticated TRAC_ADMIN
	eexec trac-admin ${trac_home} wiki import WikiStart WikiStart.txt
	eexec trac-admin ${trac_home} wiki import GettingStarted GettingStarted.txt
	eexec chown apache:apache ${trac_home}/conf/trac.ini

	eheading "setting up apache2"
	eexec sed -i -e "\$a\\# ${project_name} (added on $(date -R))\\" ${APACHE_PROJECT_CONF}
	eexec sed -i -e "\$a\\Use TracProject ${project_name}\\" ${APACHE_PROJECT_CONF}
	
	if [[ ${project_closed} == y ]]
	then
		eexec sed -i -e "\$a\\Use SVNProjectClosed ${project_name}\\" ${APACHE_PROJECT_CONF}
	else
		eexec sed -i -e "\$a\\Use SVNProject ${project_name}\\" ${APACHE_PROJECT_CONF}
	fi

	echo >> ${APACHE_PROJECT_CONF}
	eexec /etc/init.d/apache2 reload

	eheading "committing changes to our git-repository in /etc"
	pushd /etc > /dev/null
	eexec git add ${APACHE_PROJECT_CONF/\/etc\/}
	eexec git commit -m "added new project ${project_name}"
	popd > /dev/null

	eheading "adding initial project member to the database"
	if [[ ${project_closed} == y ]]
	then
		eexec dbquery "INSERT INTO project (project_name, private) VALUES ('${project_name}', 1)"
	else
		eexec dbquery "INSERT INTO project (project_name) VALUES ('${project_name}')"
	fi

	eexec dbquery "INSERT INTO member (user_id, project_id) VALUES (" \
		"(SELECT id FROM user WHERE login = '${user_name}')," \
		"(SELECT id FROM project WHERE project_name = '${project_name}'))"

	eheading "requesting new mailinglist for the project"
	# register mailinglist (owner is user_email) for the new project
	eexec wget -q -O /dev/null --no-check-certificate --post-data "name=commit_${project_name}&email=${user_email}" \
		https://lists.spline.inf.fu-berlin.de/cgi-bin/neueliste.pl

	eheading "sending confirmation email to applicant"
	sendmail -t <<-EOF
	From: dev@spline.de
	Subject: your new project has been approved
	To: ${user_email}

	Dear ${user_name},

	your project (${project_name}) has been created and can be found at
	https://dev.spline.de/trac/${project_name}

	Yours,
	    the dev.spline.de team
	EOF
	einfo "mail to ${user_email} has been sent"

	echo
	einfo
	einfo "done! success! jipii! neeeat!"
	einfo "you can find the project at $(color yellow)https://dev.spline.de/trac/${project_name}$(color)"
	einfo
	echo
}

# go to script dir
pushd $(dirname $0) > /dev/null

# get global functions
source "./functions.sh"

# load configuration
source "./config.sh"

# exit on errors
set -e

# start main program
main "$@"

# leave script dir
popd > /dev/null