#!/usr/bin/env nux-runner

### Filesystem Layout manager
###
STARTDIR=$(pwd)

nux.include nuxfs
nux.include nuxfs.dsl

GIT_BIN=$(which git)
##  verify - Verifies that directory matches nuxfs specification
function task.verify {
	link.exists() {
		nux.log debug  "Testing '$1' as link"
		if test ! -h "$1"; then
			nuxfs.error "$1" "is not symlink."
			return
		fi
		local REAL_LINK=$(readlink "$1")
		local TARGET="$2";
		if test ! "$REAL_LINK" = "$TARGET"; then
			nuxfs.error "$1" "links to $REAL_LINK instead of $TARGET"
			return
		fi
		if test ! -e "$1"; then
			nuxfs.warning "$1" "target '$NC_White$2$NC_No' does not exists."
		fi
	}
	git.exists() {
		nux.log debug "Testing '$1' as git repository"
		if test ! -e "$1/.git"; then
			nuxfs.error "$1" "is not git repository"
			return
		fi
		local remotes=$(grep "$2" "$1/.git/config" | wc -l)
		if [ $remotes -eq 0 ]; then
			nuxfs.error "$1" "Does not refer git remote '$2'"
			return;
		fi
	}
	def.notexists() {
		nuxfs.error "$1" "does not exists".
	}
	nuxfs.dsl.execute .nuxfs
}

##  create - Creates missing files as described in nuxfs definition.
function task.create {
	directory.notexists() {
		nuxfs.info "$1" "Created directory";
		mkdir -p "$1"

	}

	link.notexists() {
		nuxfs.info "$1" "Creating link to '$2'";
		ln -s "$2" "$1"
	}

	git.notexists() {
		local cur_dir=$(nuxfs.dir.get);
		local rel_path=$(realpath -Lms $1 --relative-to $cur_dir)
		pushd $(nuxfs.dir.get) > /dev/null;
		$GIT_BIN clone "$2" $rel_path
		popd > /dev/null;
	}

	nuxfs.dsl.execute .nuxfs
}