#!/usr/bin/env lua5.3

local SQL = require"luasql.mysql"

do
	local st, res = pcall(io.popen, "uname -s", "r")
	if not st or res:read"*l" ~= "Linux" then
		print"Only Linux is supported by the uninstaller at this moment."
		return
	end
end

local code = [[YES, I AM REALLY SURE I REALLY WANT TO DELETE EVERYTHING ON IKIBOORU]]

print"Are you sure you wish to uninstall Ikibooru? Perhaps you want to only disable the service? This script will not do that.
print"This script will: remove the user; its directory, which includes all object data and ID-hiding key; delete the database (that means ALL ACCOUNTS, COMMENTS AND POSTS!); remove as a service."
print"ARE YOU SURE YOU WANT THIS?"
print("If you are sure, type \""..code.."\" exactly.")

if io.read"*l" ~= code then return end

if not os.getenv"SUDO_COMMAND" then
	print"Please run under sudo or as root."
	return
end

if pcall(io.popen, "systemd --version") then
	os.execute"systemctl stop ikibooru"
	os.execute"systemctl disable ikibooru"
	os.execute"rm /etc/systemd/system/ikibooru.service"
	os.execute"systemctl daemon-reload"
end

local cfg = loadfile("/home/ikibooru/ikibooru/cfg.lua", "t", {})

local SQLConn = SQL.mysql():connect("", cfg.sqlu, cfg.sqlp, cfg.sqlh)
SQLConn:execute[[DROP DATABASE `ikibooru`;]]

os.execute"deluser ikibooru"
os.execute"rm -r /home/ikibooru"

print""
print"It was pleasure doing business."