1 files changed, 124 insertions, 0 deletions
diff --git a/lua/functions.lua b/lua/functions.lua
new file mode 100644
index 0000000..12eca3a
--- /dev/null
+++ b/lua/functions.lua
@@ -0,0 +1,124 @@
+require("utility.misc")
+
+function table.filter(list, predicate)
+	local filtered_list = {}
+
+	for _, item in ipairs(list) do
+		if predicate(item) then
+			table.insert(filtered_list, item)
+		end
+	end
+
+	return filtered_list
+end
+
+function _G.check_back_space()
+	local col = vim.api.nvim_win_get_cursor(0)[2]
+
+	if col == 0 then
+		return true
+	end
+
+	return vim.api.nvim_get_current_line():sub(col, col):find("%s") and true
+end
+
+function _G.show_documentation()
+	if vim.fn.index({"vim", "help"}, vim.bo.filetype) >= 0 then
+		vim.cmd("help " .. vim.fn.expand("<cword>"))
+	elseif vim.fn["coc#rpc#ready()"] then
+		vim.fn.CocActionAsync("doHover")
+	else
+		vim.cmd(vim.go.keywordprg .. " " .. vim.fn.expand("<cword>"))
+	end
+end
+
+function _G.toggle_terminal(height)
+    if vim.fn.win_gotoid(vim.g.term_win) == 1 then
+        vim.g.is_term_open = 0
+		vim.cmd("quit!")
+    else
+        vim.cmd("botright new")
+
+        vim.cmd("resize " .. height)
+
+        if not pcall(function() vim.cmd("buffer " .. vim.g.term_buf) end) then
+            vim.fn.termopen(vim.env.SHELL, {detach=0})
+
+            vim.g.term_buf = vim.fn.bufnr("")
+
+            vim.o.number = false
+            vim.o.relativenumber = false
+            vim.o.signcolumn = "no"
+		end
+
+        vim.cmd("startinsert!")
+
+        vim.g.term_win = vim.fn.win_getid()
+        vim.g.is_term_open = 1
+
+        if vim.fn.exists("g:NERDTree") and vim.api.nvim_eval("g:NERDTree.IsOpen()") then
+            vim.cmd("NERDTreeFocus")
+
+            vim.cmd("wincmd H")
+
+            local width_diff = vim.fn.winwidth(0) - vim.g.NERDTreeWinSize
+
+            vim.cmd(width_diff .. "wincmd <")
+
+            vim.cmd("wincmd p")
+
+            vim.fn.feedkeys("A")
+        end
+    end
+end
+
+function _G.get_current_file()
+    return vim.fn.expand("%")
+end
+
+function _G.remove_hidden_windowless_buffers()
+	local all_buffers = vim.fn.getbufinfo()
+
+	local buffers = table.filter(all_buffers, function (item)
+		local windows = item.windows
+
+		return #windows == 0 and item.hidden
+	end)
+
+	for _, buffer in ipairs(buffers) do
+		vim.api.nvim_buf_delete(buffer.bufnr, { force = true })
+	end
+end
+
+function _G.close_current_buffer()
+	local current_buf_nr = vim.fn.bufnr()
+
+	local all_buffers = vim.fn.getbufinfo()
+
+	local buffers = table.filter(
+		all_buffers,
+		function(buf_info)
+			return buf_info.loaded == 1
+				and buf_info.listed == 1
+				and buf_info.bufnr ~= current_buf_nr
+				and not string.find(buf_info.name, "NERD_tree_")
+				and not string.find(buf_info.name, "term://")
+		end
+	)
+
+	if #buffers ~= 0 then
+		vim.cmd("buffer " .. buffers[1].bufnr)
+	else
+		vim.cmd("new")
+	end
+
+	vim.api.nvim_buf_delete(current_buf_nr, { force = true })
+
+	-- Resize terminal
+	if vim.g.is_term_open == 1 then
+		vim.cmd("wincmd j")
+		vim.cmd("resize " .. vim.g.terminal_height)
+		vim.cmd("wincmd k")
+	end
+end
+