#! /bin/bash
#
# .functions
# Functions for interactive shells
#

proj() {
	# Ensure we have an argument
	if [ -z ${1+x} ]; then
		echo "proj: requires argument"
		return 1
	fi
	# POSIX mandates this external call to sed
	projname="$(echo "$1" | sed -re 's/[^ a-zA-Z0-9.-]//g')"
	projdir="$HOME/Projects/$projname"
	# Ensure we have a ~/Projects directory
	mkdir -p "$HOME/Projects" > /dev/null 2>&1
	# cd into the project or make it if necessary
	if [ -d "$projdir" ]; then
		# It exists
		cd "$projdir" || return 50
		# Run code if we have it
		# The fun part is this environment file can access some vars about the proj
		local envfile="$projdir/.env"
		if [ -r "$envfile" ]; then
			. "$envfile"
			echo "Sourced environment file for project"
			# Also mark an envvar to ensure we can detect this condition
			export PROJECT="$projname"
		fi
	else
		# It does not exist
		echo "Creating new project \"$projname\""
		mkdir -p "$projdir"
		cd "$projdir" || return 51
		if command -v git > /dev/null 2>&1; then
			# Initialize git
			echo "Initializing git with .gitignore"
			git init > /dev/null 2>&1
			echo '*.swp' > .gitignore
			git add .gitignore > /dev/null 2>&1
			git commit -am "Create gitignore" > /dev/null 2>&1
			git status
		fi
	fi
}
# Autocompletion for bash
# A note on the shellcheck disable: that's fine, because this is also a test
# If it fails, we don't even define a completion function
# shellcheck disable=2039
complete -F _proj proj > /dev/null 2>&1 && \
_proj() {
	[ "${#COMP_WORDS[@]}" != "2" ] && return 0
	for dir in "$HOME"/Projects/*; do
		reply="$(basename "$dir")"
		reply="${reply//[^ \-a-zA-Z0-9.]/}"
		# shellcheck disable=2179
		COMPREPLY+=" $reply"
	done
	unset reply
	# shellcheck disable=2178
	COMPREPLY=($(compgen -W "$COMPREPLY" "${COMP_WORDS[COMP_CWORD]}"))
	return 0
}
