local lspconfig = require('lspconfig')
local fidget = require('fidget')
local nlcmp = require('cmp_nvim_lsp')
local cmp = require('cmp')
local map = vim.keymap.set

vim.opt.signcolumn = 'yes'

local lc_defaults = lspconfig.util.default_config
lc_defaults.capabilities = vim.tbl_deep_extend(
    'force',
    lc_defaults.capabilities,
    nlcmp.default_capabilities()
)

cmp.setup({
    sources = {
        { name = 'nvim_lsp' },
        { name = 'buffer', keyword_length = 3 },  -- only start autocompleting after a few chars typed
    },
    snippet = {
        expand = function(args)
            -- You need Neovim v0.10 to use vim.snippet
            vim.snippet.expand(args.body)
        end,
    },
    mapping = cmp.mapping.preset.insert({
        ['<cr>'] = cmp.mapping.confirm({ select = true }),
    }),
    window = {
        completion = cmp.config.window.bordered(),
        documentation = cmp.config.window.bordered(),
    }
})

vim.api.nvim_create_autocmd('LspAttach', {
    desc = 'LSP actions (apparently)',
    callback = function(event)
        fidget.notify("LSP attached to current buffer.", nil, nil)
        
        local opts = { buffer = event.buf }

        map('n', 'K', '<cmd>lua vim.lsp.buf.hover()<cr>', opts)
        map('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<cr>', opts)
        map('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<cr>', opts)
        map('n', 'gs', '<cmd>lua vim.lsp.buf.signature_help()<cr>', opts)
        map('n', 'gf', '<cmd>lua vim.lsp.buf.format({async = false, timeout_ms = 10000})<cr>', opts)
    end,
})


-- lspconfig.lua_ls.setup({})
-- lspconfig.rust_analyzer.setup({})

require('mason').setup({})
require('mason-lspconfig').setup({
    ensure_installed = { "lua_ls", "gopls", "html", "nim_langserver", "eslint", "clangd" },
    handlers = {
        function(svn)
            lspconfig[svn].setup({})
        end,
    }
})