-------------------------------------------------------------------------------
--     - Vim REST Console extensions library -
-------------------------------------------------------------------------------

local function get_vim_rest_home_dir()
  vim.fn.mkdir(vim.env.NVIMHOME .. '/vim-rest-console', 'p')
	return vim.env.NVIMHOME .. '/vim-rest-console'
end

-- Opens up a new tab if current buffer is not empty
local function new_tab_if_needed()
	if vim.api.nvim_buf_get_name('%') ~= '' then
		-- Current buffer is not empty, open up a new tab
		vim.cmd('tabnew')
	end
end

local function open_rest_console(file)
	new_tab_if_needed()
	local ending = '.rest'
	if file:sub(-#ending) ~= ending then
		file = file .. '.rest'
	end
	vim.cmd('e ' .. file)
end

local function open_cached_rest_console(name)
	local dir = get_vim_rest_home_dir()
	open_rest_console(dir .. '/' .. name)
end

-------------------------------------------------------------------------------
--    - Public API -
-------------------------------------------------------------------------------

local M = {}

-- Opens us a scratch rest console (not saved)
function M.open_scratch_rest_console()
	new_tab_if_needed()
	vim.cmd('set ft=rest')
end

-- Opens up a rest console which can be saved -- cached by name
function M.open_cached_rest_console(...)
	local name = select(1, ...)
	if (select('#', ...) == 0) then
		name = require'common.projects'.get_project_id()
	end
	open_cached_rest_console(name)
end

-- Opens up a rest console which can be saved -- cached by name
function M.open_named_cached_rest_console(name)
	name = require'common.projects'.get_project_id() .. name
	open_cached_rest_console(name)
end

-- Opens up a rest console based on local file path
function M.open_local_rest_console(...)
	local file = select(1, ...)
	if (select('#', ...) == 0) then
		file = 'default'
	end
	open_rest_console(file)
end

return M