local capabilities = require('cmp_nvim_lsp').default_capabilities()

local lsp_on_attach = function(client, bufnr)
	local aulsp = vim.api.nvim_create_augroup("lsp", {clear = true})
	local opts = { buffer = bufnr, noremap = true, silent = true }
	require('gitsigns').setup()
	vim.keymap.set('n', 'gd', require('telescope.builtin').lsp_definitions, opts)
	vim.keymap.set('n', '<C-]>', require('telescope.builtin').lsp_definitions, opts)
	vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
	vim.keymap.set('n', 'gr', require('telescope.builtin').lsp_references, opts)
	vim.keymap.set('n', 'gR', vim.lsp.buf.rename, opts)
	vim.keymap.set('n', 'gi', require('telescope.builtin').lsp_implementations, opts)
	vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
	vim.keymap.set('n', '<C-q>', vim.diagnostic.setqflist, opts)
	vim.keymap.set('n', '<leader>=', vim.lsp.buf.format, opts)
	vim.keymap.set('n', '<C-m>', vim.lsp.buf.format, opts)
	vim.keymap.set('i', '<C-o>', vim.lsp.buf.signature_help, opts)
end

-- Rust
require('rust-tools').setup({
	server = {
		capabilities = capabilities,
		on_attach = function(client, bufnr)
			lsp_on_attach(client, bufnr)
			vim.opt.makeprg = 'cargo build'
			vim.cmd([[setlocal errorformat=
	    \%-G,
	    \%-Gerror:\ aborting\ %.%#,
	    \%-Gerror:\ Could\ not\ compile\ %.%#,
	    \%Eerror:\ %m,
	    \%Eerror[E%n]:\ %m,
	    \%Wwarning:\ %m,
	    \%Inote:\ %m,
	    \%C\ %#-->\ %f:%l:%c,
	    \%E\ \ left:%m,%C\ right:%m\ %f:%l:%c,%Z,
	    \%-G%\\s%#Downloading%.%#,
	    \%-G%\\s%#Compiling%.%#,
	    \%-G%\\s%#Finished%.%#,
	    \%-G%\\s%#error:\ Could\ not\ compile\ %.%#,
	    \%-G%\\s%#To\ learn\ more\\,%.%#,
	    \%-Gnote:\ Run\ with\ \`RUST_BACKTRACE=%.%#,
	    \%.%#panicked\ at\ \\'%m\\'\\,\ %f:%l:%c
]])
		end
	}
})

-- Go
require('lspconfig')['gopls'].setup {
	capabilities = capabilities,
	cmd = { "gopls", "serve" },
	settings = {
		gopls = {
			analyses = {
				unusedparams = true,
			},
			staticcheck = true,
		},
	},
	on_attach = lsp_on_attach,
}

require('lspconfig')['clangd'].setup {
	capabilities = capabilities,
	on_attach = lsp_on_attach,
}

require('lspconfig')['pylsp'].setup {
	capabilities = capabilities,
	on_attach = lsp_on_attach,
}

require('lspconfig')['ocamllsp'].setup {
	capabilities = capabilities,
	on_attach = lsp_on_attach,
}

require('lspconfig')['zls'].setup {
	capabilities = capabilities,
	on_attach = lsp_on_attach,
}

require('lspconfig')['texlab'].setup {
	capabilities = capabilities,
	on_attach = lsp_on_attach,
}