require("mason").setup({
	automatic_installation = true,
})

-- Setup lspconfig.
local capabilities = require("cmp_nvim_lsp").default_capabilities(vim.lsp.protocol.make_client_capabilities())
local navic = require("nvim-navic")

-- LSP hotkey config
local opts = { noremap = true, silent = true }
vim.keymap.set("n", "<space>e", vim.diagnostic.open_float, opts)
vim.keymap.set("n", "[d", vim.diagnostic.goto_prev, opts)
vim.keymap.set("n", "]d", vim.diagnostic.goto_next, opts)
vim.keymap.set("n", "<space>q", vim.diagnostic.setloclist, opts)

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
	if client.server_capabilities.documentSymbolProvider then
		navic.attach(client, bufnr)
	end
	-- vim.cmd [[autocmd BufWritePre * lua vim.lsp.buf.format()]]
	-- Enable completion triggered by <c-x><c-o>
	vim.api.nvim_buf_set_option(bufnr, "omnifunc", "v:lua.vim.lsp.omnifunc")

	-- Mappings.
	-- See `:help vim.lsp.*` for documentation on any of the below functions
	local bufopts = { noremap = true, silent = true, buffer = bufnr }
	vim.keymap.set("n", "gD", vim.lsp.buf.declaration, bufopts)
	vim.keymap.set("n", "gd", vim.lsp.buf.definition, bufopts)
	vim.keymap.set("n", "K", vim.lsp.buf.hover, bufopts)
	vim.keymap.set("n", "gi", vim.lsp.buf.implementation, bufopts)
	vim.keymap.set("n", "<C-k>", vim.lsp.buf.signature_help, bufopts)
	vim.keymap.set("n", "<space>wa", vim.lsp.buf.add_workspace_folder, bufopts)
	vim.keymap.set("n", "<space>wr", vim.lsp.buf.remove_workspace_folder, bufopts)
	vim.keymap.set("n", "<space>wl", function()
		print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
	end, bufopts)
	vim.keymap.set("n", "<space>D", vim.lsp.buf.type_definition, bufopts)
	vim.keymap.set("n", "<space>rn", vim.lsp.buf.rename, bufopts)
	vim.keymap.set("n", "<space>ca", vim.lsp.buf.code_action, bufopts)
	vim.keymap.set("n", "gr", vim.lsp.buf.references, bufopts)
	vim.keymap.set("n", "<space>f", vim.lsp.buf.formatting, bufopts)
end

local lsp_flags = {
	-- This is the default in Nvim 0.7+
	debounce_text_changes = 150,
}

--- initialize language servers
require("mason-lspconfig").setup()
require("mason-lspconfig").setup_handlers({
	function(server_name)
		require("lspconfig")[server_name].setup({
			on_attach = on_attach,
			flags = lsp_flags,
			capabilities = capabilities,
			settings = {
				Lua = {
					completion = {
						callSnippet = "Replace",
					},
					diagnostics = {
						globals = { "vim" },
					},
				},
			},
		})
		require("lspconfig")["tsserver"].setup({
			on_attach = on_attach,
			flags = lsp_flags,
			capabilities = capabilities,
			settings = {
				typescript = {
					format = {
						insertSpaceAfterOpeningAndBeforeClosingEmptyBraces = false,
						insertSpaceAfterFunctionKeywordForAnonymousFunctions = true,
						semicolons = "remove",
					},
				},
			},
		})
		require("lspconfig")["pylsp"].setup({
			on_attach = on_attach,
			flags = lsp_flags,
			capabilities = capabilities,
			settings = {
				pylsp = {
					plugins = {
						pycodestyle = {
							maxLineLength = 120,
						},
					},
				},
			},
		})
		require("lspconfig")["gopls"].setup({
			on_attach = on_attach,
			flags = lsp_flags,
			capabilities = capabilities,
			settings = {
				gopls = {
					experimentalPostfixCompletions = true,
					gofumpt = true,
					analyses = {
						nilness = true,
						unusedwrite = true,
						unusedvariable = true,
					},
					staticcheck = true,
				},
			},
		})
	end,
})