local lspKeys = function(client, bufnr)
  local base_opts = { noremap = true, silent = false, buffer = bufnr }

  local function opts(desc) return vim.tbl_extend('error', base_opts, { desc = desc }) end

  local mappings = {
    { mode = { 'n', 'x' }, key = '<space>a', fn = vim.lsp.buf.code_action, desc = 'Code action' },
    { mode = 'n', key = '<space>e', fn = vim.lsp.buf.declaration, desc = 'Declaration' },
    { mode = 'n', key = '<space>h', fn = function() vim.lsp.buf.hover({ border = 'none' }) end, desc = 'Hover' },
    { mode = 'n', key = '<space>c', fn = vim.lsp.buf.outgoing_calls, desc = 'Outgoing calls' },
    { mode = 'n', key = '<space>C', fn = vim.lsp.buf.incoming_calls, desc = 'Incoming calls' },
    { mode = 'n', key = '<space>m', fn = vim.lsp.buf.rename, desc = 'Rename' },
    { mode = 'n', key = '<space>D', fn = vim.lsp.buf.type_definition, desc = 'Type definition' },
    { mode = { 'n', 'i', 'x' }, key = '<C-k>', fn = vim.lsp.buf.signature_help, desc = 'Signature help' },
    { mode = 'n', key = '<space>v', fn = function() vim.diagnostic.open_float({ border = 'rounded' }) end, desc = 'Diagnostics Float' },
    { mode = 'n', key = '<A-o>', fn = '<cmd>ClangdSwitchSourceHeader<CR>', desc = 'Switch Source/Header' },
  }

  for _, map in ipairs(mappings) do
    vim.keymap.set(map.mode, map.key, map.fn, opts(map.desc))
  end

  if client.supports_method('inlayHintProvider') then
    vim.keymap.set(
      'n',
      '<space>i',
      function() vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled({ bufnr = bufnr }), { bufnr = bufnr }) end,
      opts('Toggle inlay hints')
    )
  end
end

return {
  'neovim/nvim-lspconfig',
  dependencies = {
    'williamboman/mason.nvim',
    'williamboman/mason-lspconfig.nvim',
    'SmiteshP/nvim-navic',
  },
  lazy = false,
  config = function()
    local servers = {
      'basedpyright',
      'ruff',
      'clangd',
      'lua_ls',
      'jsonls',
      'dockerls',
      'yamlls',
      'neocmake',
      'markdown_oxide',
      'taplo',
    }

    local capabilities = vim.lsp.protocol.make_client_capabilities()
    capabilities = require('cmp_nvim_lsp').default_capabilities(capabilities)
    -- capabilities = require('blink.cmp').get_lsp_capabilities(capabilities)
    vim.lsp.config('*', {
      capabilities = capabilities,
    })

    vim.lsp.enable(servers)

    local lsp_group = vim.api.nvim_create_augroup('UserLspAttach', { clear = true })
    vim.api.nvim_create_autocmd('LspAttach', {
      group = lsp_group,
      desc = 'Set buffer-local keymaps and options after an LSP client attaches',
      callback = function(args)
        local bufnr = args.buf
        local client = vim.lsp.get_client_by_id(args.data.client_id)
        if not client then
          return
        end
        lspKeys(client, bufnr)

        if client.server_capabilities.completionProvider then
          vim.bo[bufnr].omnifunc = 'v:lua.vim.lsp.omnifunc'
          vim.bo[bufnr].formatexpr = 'v:lua.vim.lsp.formatexpr()'
        end

        if client.server_capabilities.documentSymbolProvider then
          local navic = require('nvim-navic')
          navic.attach(client, bufnr)
        end
      end,
    })
  end,
}