Split out personal modules.

config/nvim/lua/extra/terminal/init.lua

@@ -0,0 +1,90 @@
+-- ------------------------------------------------------------
+-- TERMINAL SYSTEM
+-- ------------------------------------------------------------
+local term_buf = nil
+
+local function open_term_split()
+	vim.cmd("botright vsplit")
+
+	local win = vim.api.nvim_get_current_win()
+
+	if term_buf and vim.api.nvim_buf_is_valid(term_buf) then
+		vim.api.nvim_win_set_buf(win, term_buf)
+	else
+		vim.cmd("terminal")
+		term_buf = vim.api.nvim_get_current_buf()
+	end
+
+	vim.api.nvim_win_set_width(win, math.floor(vim.o.columns * 0.37))
+	vim.cmd("startinsert")
+end
+
+local function toggle_term()
+	for _, win in ipairs(vim.api.nvim_list_wins()) do
+		if vim.api.nvim_win_get_buf(win) == term_buf then
+			vim.api.nvim_win_close(win, false)
+			return
+		end
+	end
+
+	open_term_split()
+end
+
+local function open_term_fullscreen()
+	if term_buf and vim.api.nvim_buf_is_valid(term_buf) then
+		vim.api.nvim_set_current_buf(term_buf)
+	else
+		vim.cmd("terminal")
+		term_buf = vim.api.nvim_get_current_buf()
+	end
+
+	vim.cmd("startinsert")
+end
+
+local function prev_non_term_buf()
+	local current = vim.api.nvim_get_current_buf()
+	local buffers = vim.fn.getbufinfo({ buflisted = 1 })
+	local candidates = {}
+
+	for _, buffer in ipairs(buffers) do
+		if buffer.bufnr ~= current and vim.bo[buffer.bufnr].buftype ~= "terminal" then
+			table.insert(candidates, buffer)
+		end
+	end
+
+	if #candidates == 0 then
+		print("No previous non-terminal buffer")
+		return
+	end
+
+	table.sort(candidates, function(a, b)
+		return a.lastused > b.lastused
+	end)
+
+	vim.api.nvim_set_current_buf(candidates[1].bufnr)
+end
+
+function send(command)
+	local terminal_visible = false
+
+	for _, win in ipairs(vim.api.nvim_list_wins()) do
+		if term_buf and vim.api.nvim_win_get_buf(win) == term_buf then
+			terminal_visible = true
+			break
+		end
+	end
+
+	if not terminal_visible then
+		open_term_split()
+	end
+
+	local job = vim.b[term_buf].terminal_job_id
+
+	if job then
+		vim.api.nvim_chan_send(job, command .. "\n")
+	end
+end
+map("n", "<C-j>", toggle_term, { desc = "Toggle terminal split", })
+map("n", "<C-o>", open_term_fullscreen, { desc = "Open terminal fullscreen", })
+map("t", "<C-j>", toggle_term, { desc = "Toggle terminal split", })
+map("t", "<C-o>", prev_non_term_buf, { desc = "Return to previous buffer", })