#!/bin/bash
# dot - a (mostly) one script dotfiles manager
#
# Copyright 2026 Edward Delaporte V
# Licensed under AGPLv3 and later.
#
# Features
#   symlinks - any file in $HOME/dotfiles/files may be symlinked
#
# dot setup
#		install the necessary tools to $HOME/envs/dot
#
# dot list
#   list available roles
#
# dot check
#   check setup vs expected
#
# dot add ROLE
#   add ROLE to localhost
#
# dot apply
#		apply all added ROLES

# set -v

ENVS="$HOME/envs"
ANSIBLE="$ENVS/ansible/bin/ansible-playbook"
TASKFILE="$HOME/dot.$HOSTNAME.yaml"

read -d '' EMPTY_TASKFILE << EOF
---
- name: Set up dotfiles on $HOSTNAME
  gather_facts: no
  hosts: localhost
  connection: local

  tasks:
		- name: Do nothing
      ansible.builtin.shell: echo "Nothing to do."
EOF


if [ "$1" == "setup" ]; then
  if [[ ! -f "$ANSIBLE" ]]; then
		mkdir -p "$ENVS"
		echo "Setting up Ansible in ~/envs/ansible"
	 	cd $HOME/envs; python3 -m venv ansible
		$HOME/envs/ansible/bin/pip install ansible jinja2
	fi
  if [[ -f "$ANSIBLE" ]]; then
		echo "[ ok ]: Ansible setup at $ANSIBLE"
	fi
  if [[ ! -f "$TASKFILE" ]]; then
		echo "Creating $TASKFILE"
		echo "$EMPTY_TASKFILE" >> $TASKFILE
	fi
  if [[ -f "$TASKFILE" ]]; then
		echo "[ ok ]: dot config at $TASKFILE"
	fi
fi

if [ "$1" == "reset" ]; then
	read -n1 -p "Reset $TASKFILE? [y,N]" input
	if [[ ! $input == "Y" && ! $input == "y" ]]; then
		echo "Aborted by user"
		exit 1
	fi
	echo "$EMPTY_TASKFILE" > $TASKFILE
fi


if [ "$1" == "check" ]; then
	$ANSIBLE $TASKFILE --check --diff
fi

if [ "$1" == "list" ]; then
  echo "May symlink:"
	cd $HOME/dotfiles/files
	ls -p | grep -v /
fi





if [ "$1" == "link" ]; then
	if [ ! -n "$2" ]; then
		echo "May symlink:"
		cd $HOME/dotfiles/files
		ls -p | grep -v /
	fi

read -d '' LINK_FILE << EOF
---
  tasks:
		- name: Create a symbolic link
			ansible.builtin.file:
				src: /file/to/link/to
				dest: /path/to/symlink
				owner: foo
				group: foo
				state: link
EOF

fi