--[
-- Ensure that the LSP feature is up and running.
--]

return {
	"neovim/nvim-lspconfig",
	enabled = true,
	event = { "BufReadPre", "BufNewFile" },
	dependencies = {
		-- "hrsh7th/cmp-nvim-lsp",
		-- { "antosha417/nvim-lsp-file-operations", config = true },
		-- { "folke/neodev.nvim", opts = {} },
	},
	config = function()
		vim.api.nvim_create_autocmd("LspAttach", {
			group = vim.api.nvim_create_augroup("UserLspConfig", {}),
			callback = function(ev)
				-- Buffer local mappings.
				-- See `:help vim.lsp.*` for documentation on any of the functions below.

				-- Keybindings
				vim.keymap.set(
					"n",
					"gR",
					"<cmd>Telescope lsp_references<CR>",
					{ buffer = ev.buf, silent = true, desc = "Show LSP references" }
				)
				vim.keymap.set(
					"n",
					"gD",
					vim.lsp.buf.declaration,
					{ buffer = ev.buf, silent = true, desc = "Go to declaration" }
				)
				vim.keymap.set(
					"n",
					"gd",
					"<cmd>Telescope lsp_definitions<CR>",
					{ buffer = ev.buf, silent = true, desc = "Show LSP definitions" }
				)
				vim.keymap.set(
					"n",
					"gi",
					"<cmd>Telescope lsp_implementations<CR>",
					{ buffer = ev.buf, silent = true, desc = "Show LSP implementations" }
				)
				vim.keymap.set(
					"n",
					"gt",
					"<cmd>Telescope lsp_type_definitions<CR>",
					{ buffer = ev.buf, silent = true, desc = "Show LSP type definitions" }
				)
				vim.keymap.set(
					{ "n", "v" },
					"<leader>ca",
					vim.lsp.buf.code_action,
					{ buffer = ev.buf, silent = true, desc = "See available code actions" }
				)
				vim.keymap.set(
					"n",
					"<leader>rn",
					vim.lsp.buf.rename,
					{ buffer = ev.buf, silent = true, desc = "Smart rename" }
				)
				vim.keymap.set(
					"n",
					"<leader>D",
					"<cmd>Telescope diagnostics bufnr=0<CR>",
					{ buffer = ev.buf, silent = true, desc = "Show buffer diagnostics" }
				)
				vim.keymap.set(
					"n",
					"<leader>d",
					vim.diagnostic.open_float,
					{ buffer = ev.buf, silent = true, desc = "Show line diagnostics" }
				)
				vim.keymap.set(
					"n",
					"<d",
					vim.diagnostic.jump({ count = -1, float = true })({
						buffer = ev.buf,
						silent = true,
						desc = "Go to previous diagnostic",
					})
				)
				vim.keymap.set(
					"n",
					">d",
					vim.diagnostic.jump({ count = 1, float = false })({
						buffer = ev.buf,
						silent = true,
						desc = "Go to next diagnostic",
					})
				)
				vim.keymap.set(
					"n",
					"K",
					vim.lsp.buf.hover,
					{ buffer = ev.buf, silent = true, desc = "Show documentation for what is under the cursor" }
				)
				vim.keymap.set(
					"n",
					"<leader>rs",
					"<cmd>LspRestart<CR>",
					{ buffer = ev.buf, silent = true, desc = "Restart LSP" }
				)
				vim.keymap.set(
					"n",
					"<leader>ss",
					"<cmd>LspStop harper_ls<CR>",
					{ buffer = ev.buf, silent = true, desc = "Stop harper-ls, The spell checking plugin" }
				)
				vim.keymap.set(
					"n",
					"<leader>sS",
					"<cmd>LspRestart harper_ls<CR>",
					{ buffer = ev.buf, silent = true, desc = "(Re)-start harper-ls, The spell checking plugin" }
				)
				vim.keymap.set("n", "<space>f", function()
					vim.lsp.buf.format({ async = true })
				end, { buffer = ev.buf, silent = true, desc = "LSP based format" })
			end,
		})

		-- Change the diagnostics symbols in the sign column (gutter)
		-- BUG: Deprecated,
		--[[
		local signs = { Error = " ", Warn = " ", Hint = "󰠠 ", Info = " " }
		for type, icon in pairs(signs) do
			local hl = "DiagnosticSign" .. type
			vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = "" })
		end
    --]]
		vim.diagnostic.config({
			signs = {
				text = {
					[vim.diagnostic.severity.ERROR] = " ",
					[vim.diagnostic.severity.WARN] = " ",
					[vim.diagnostic.severity.INFO] = "󰋼 ",
					[vim.diagnostic.severity.HINT] = "󰌵 ",
				},
				texthl = {
					[vim.diagnostic.severity.ERROR] = "Error",
					[vim.diagnostic.severity.WARN] = "Error",
					[vim.diagnostic.severity.HINT] = "Hint",
					[vim.diagnostic.severity.INFO] = "Info",
				},
				numhl = {
					[vim.diagnostic.severity.ERROR] = "",
					[vim.diagnostic.severity.WARN] = "",
					[vim.diagnostic.severity.HINT] = "",
					[vim.diagnostic.severity.INFO] = "",
				},
			},
		})
	end,
}