dotfiles/.config/nvim/lua/user/plugins/which_key.lua

local toggle_gitsigns_blame = function()
	local function is_filetype_open(filetype)
		for _, buf in ipairs(vim.api.nvim_list_bufs()) do
			if vim.api.nvim_buf_is_loaded(buf) and vim.bo[buf].filetype == filetype then
				return buf
			end
		end
		return nil
	end

	-- check if gitsigns-blame buffer is open
	local bufnr = is_filetype_open("gitsigns-blame")

	if bufnr then
		vim.api.nvim_buf_delete(bufnr, { force = false })
	else
		vim.cmd("Gitsigns blame")
	end
end

return {
	"folke/which-key.nvim",
	lazy = false,
	opts = {
		plugins = {
			marks = false, -- shows a list of your marks on ' and `
			registers = false, -- shows your registers on " in NORMAL or <C-r> in INSERT mode
			spelling = {
				enabled = true,
				suggestions = 20,
			}, -- use which-key for spelling hints
			-- the presets plugin, adds help for a bunch of default keybindings in Neovim
			-- No actual key bindings are created
			presets = {
				operators = false, -- adds help for operators like d, y, ...
				motions = false, -- adds help for motions
				text_objects = false, -- help for text objects triggered after entering an operator
				windows = false, -- default bindings on <c-w>
				nav = false,     -- misc bindings to work with windows
				z = false,       -- bindings for folds, spelling and others prefixed with z
				g = false,       -- bindings for prefixed with g
			},
		},
		preset = "classic",
		keys = {
			scroll_down = "<c-d>", -- binding to scroll down inside the popup
			scroll_up = "<c-u>", -- binding to scroll up inside the popup
		},
		win = {
			-- border = "single",      -- none, single, double, shadow
			padding = { 2, 2, 2, 2 }, -- extra window padding [top, right, bottom, left]
			wo = {
				winblend = 0,
			}
		},
		layout = {
			height = { min = 4, max = 25 }, -- min and max height of the columns
			width = { min = 20, max = 50 }, -- min and max width of the columns
			spacing = 3,                -- spacing between columns
			align = "left",             -- align columns left, center or right
		},
		filter = function(mapping)    -- enable this to hide mappings for which you didn't specify a label
			return mapping.desc
		end,
		show_help = true, -- show help message on the command line when the popup is visible
		show_keys = true, -- show the currently pressed key and its label as a message in the command line
		triggers = {},
		-- disable the WhichKey popup for certain buf types and file types.
		-- Disabled by default for Telescope
		disable = {
			buftypes = {},
			filetypes = { "TelescopePrompt" },
		},
	},
	config = function(_, opts)
		local which_key = require("which-key")
		which_key.setup(opts)

		which_key.add({
			{ "<leader>",  group = "Hotkeys" },
			{ "<leader>?", ":WhichKey <CR>",                        desc = "Show keybindings" },
			{ "<leader>o", ":Oil --float <CR>",                     desc = "Oil nvim toggle" },
			{ "<leader>e", ":Neotree toggle position=current <CR>", desc = "File tree toggle" },
			{ "<leader>F", ":lua vim.lsp.buf.format() <CR>",        desc = "Format file" },
		})

		which_key.add({
			{ "<leader>g",  group = "Git" },
			{ "<leader>gb", toggle_gitsigns_blame, desc = "Toggle git blame view" },
		})

		which_key.add({
			{ "<leader>z", "<cmd>:ZenMode<CR>", desc = "Zen mode toggle" },
		})

		which_key.add({
			{ "<leader>c",  group = "Code actions" },
			{ "<leader>ca", "<cmd>lua vim.lsp.buf.code_action()<CR>", desc = "Show code actions" },
		})

		which_key.add({
			{ "<leader>cd", "<cmd>lua vim.diagnostic.setloclist()<CR>", desc = "Show diagnostic list" },
		})

		which_key.add({
			{ "<leader>d",  group = "Dap" },
			{ "<leader>dr", "<cmd>DapContinue<CR>",         desc = "Continue" },
			{ "<leader>dj", "<cmd>DapStepInto<CR>",         desc = "Step into" },
			{ "<leader>dl", "<cmd>DapStepOver<CR>",         desc = "Step over" },
			{ "<leader>dk", "<cmd>DapStepOut<CR>",          desc = "Step out" },
			{ "<leader>db", "<cmd>DapToggleBreakpoint<CR>", desc = "Toggle breakpoint" },
			{ "<leader>ds", "<cmd>DapTerminate<CR>",        desc = "Terminate" },
		})

		which_key.add({
			{ "<leader>t",  group = "Tabs" },
			{ "<leader>tn", "<cmd>tabnew<CR>",   desc = "New tab" },
			{ "<leader>tq", "<cmd>tabclose<CR>", desc = "Close tab" },
		})

		which_key.add({
			{ "g",   group = "LSP Actions" },
			{ "gD",  "<cmd>lua vim.lsp.buf.declaration()<CR>",                         desc = "Go to declaration" },
			{ "gd",  "<cmd>lua vim.lsp.buf.definition()<CR>",                          desc = "Go to definition" },
			{ "gi",  "<cmd>lua vim.lsp.buf.implementation()<CR>",                      desc = "Show implementations" },
			{ "grr", "<cmd>lua vim.lsp.buf.rename()<CR>",                              desc = "Rename" },
			{ "gr",  "<cmd>lua vim.lsp.buf.references()<CR>",                          desc = "Show references" },
			{ "gl",  "<cmd>lua vim.diagnostic.open_float({ border = 'rounded' })<CR>", desc = "Show diagnostic at line" },
		})

		which_key.add({
			{ "<C-k>", "<cmd>lua vim.lsp.buf.signature_help()<CR>", desc = "Signature help" },
			{ "K",     "<cmd>lua vim.lsp.buf.hover()<CR>",          desc = "Signature help" },
		})
	end
}