local lspconfig = require('lspconfig')
local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = vim.tbl_deep_extend('force', capabilities, require('cmp_nvim_lsp').default_capabilities())

vim.api.nvim_create_autocmd('LspAttach', {
  group = vim.api.nvim_create_augroup('u-lsp-attach', { clear = true }),
  callback = function(event)
    local map = function(keys, func, desc, mode)
      mode = mode or 'n'
      vim.keymap.set(mode, keys, func, { buffer = event.buf, desc = 'LSP: ' .. desc })
    end

    map('gd', require('telescope.builtin').lsp_definitions, '[G]oto [D]efinition')
    map('gr', require('telescope.builtin').lsp_references, '[G]oto [R]eferences')
    map('gI', require('telescope.builtin').lsp_implementations, '[G]oto [I]mplementation')
    map('<leader>D', require('telescope.builtin').lsp_type_definitions, 'Type [D]efinition')
    map('<leader>ds', require('telescope.builtin').lsp_document_symbols, '[D]ocument [S]ymbols')
    map('<leader>ws', require('telescope.builtin').lsp_dynamic_workspace_symbols, '[W]orkspace [S]ymbols')
    map('<leader>rn', vim.lsp.buf.rename, '[R]e[n]ame')
    map('<leader>ca', vim.lsp.buf.code_action, '[C]ode [A]ction', { 'n', 'x' })
    map('gD', vim.lsp.buf.declaration, '[G]oto [D]eclaration')

    local client = vim.lsp.get_client_by_id(event.data.client_id)
    if client and client.supports_method(vim.lsp.protocol.Methods.textDocument_documentHighlight) then
      local highlight_augroup = vim.api.nvim_create_augroup('u-lsp-highlight', { clear = false })
      vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
        buffer = event.buf,
        group = highlight_augroup,
        callback = vim.lsp.buf.document_highlight,
      })
      vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
        buffer = event.buf,
        group = highlight_augroup,
        callback = vim.lsp.buf.clear_references,
      })
      vim.api.nvim_create_autocmd('LspDetach', {
        group = vim.api.nvim_create_augroup('u-lsp-detach', { clear = true }),
        callback = function(event2)
          vim.lsp.buf.clear_references()
          vim.api.nvim_clear_autocmds { group = 'u-lsp-highlight', buffer = event2.buf }
        end,
      })
    end

    if client and client.supports_method(vim.lsp.protocol.Methods.textDocument_inlayHint) then
      map('<leader>th', function()
        vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled { bufnr = event.buf })
      end, '[T]oggle Inlay [H]ints')
    end
  end,
})

lspconfig.clangd.setup({
  cmd = {
    "clangd",
    "--background-index",
    "--clang-tidy",
    "--completion-style=bundled",
    "--cross-file-rename",
    "--header-insertion=iwyu",
  },
  capabilities=capabilities
})
lspconfig.jedi_language_server.setup{}
lspconfig.nixd.setup{}