local lsp = require('lsp-zero')

lsp.preset('recommended')

lsp.on_attach(function(client, bufnr)
	local opts = { buffer = bufnr, remap = false }

	vim.keymap.set('n', 'gd', function() vim.lsp.buf.definition() end, opts)
	vim.keymap.set('n', 'K', function() vim.lsp.buf.hover() end, opts)
	vim.keymap.set('n', '<leader>vws', function() vim.lsp.buf.workspace_symbol() end, opts)
	vim.keymap.set('n', '<leader>vd', function() vim.diagnostic.open_float() end, opts)
	vim.keymap.set('n', '[d', function() vim.diagnostic.goto_prev() end, opts)
	vim.keymap.set('n', ']d', function() vim.diagnostic.goto_next() end, opts)
	vim.keymap.set('n', '<leader>vca', function() vim.lsp.buf.code_actions() end, opts)
	vim.keymap.set('n', '<leader>vrr', function() vim.lsp.buf.references() end, opts)
	vim.keymap.set('n', '<leader>vrn', function() vim.lsp.buf.rename() end, opts)
	vim.keymap.set('i', '<C-h>', function() vim.lsp.buf.signature_help() end, opts)
end)

require('mason').setup({})
require('mason-lspconfig').setup({
	ensure_installed = {
		'tsserver',
		'eslint',
		'rust_analyzer',
		'lua_ls',
		'gopls',
		'arduino_language_server',
		'bashls',
		'cmake',
		'marksman',
		'ltex',
		'perlnavigator',
		'clangd',
	},
  handlers = {
    lsp.default_setup,
  },
})

local cmp = require('cmp')
local cmp_select = { behavior = cmp.SelectBehavior.Select }
local cmp_mappings = lsp.defaults.cmp_mappings({
	['<C-p>'] = cmp.mapping.select_prev_item(cmp_select),
	['<C-n>'] = cmp.mapping.select_next_item(cmp_select),
	['<C-n>'] = cmp.mapping.confirm({ select = true }),
	['<C-Space>'] = cmp.mapping.complete(),
})


lsp.set_preferences({
--     sign_icons = { }
    sign_icons = {
      Text = "󰉿",
      Method = "󰆧",
      Function = "󰊕",
      Constructor = "",
      Field = "󰜢",
      Variable = "󰀫",
      Class = "󰠱",
      Interface = "",
      Module = "",
      Property = "󰜢",
      Unit = "󰑭",
      Value = "󰎠",
      Enum = "",
      Keyword = "󰌋",
      Snippet = "",
      Color = "󰏘",
      File = "󰈙",
      Reference = "󰈇",
      Folder = "󰉋",
      EnumMember = "",
      Constant = "󰏿",
      Struct = "󰙅",
      Event = "",
      Operator = "󰆕",
      TypeParameter = "",
    },
})

local lspkind = require('lspkind')
cmp.setup {

  formatting = {
    format = lspkind.cmp_format({
      mode = 'symbol', -- show only symbol annotations
      maxwidth = 50, -- prevent the popup from showing more than provided characters (e.g 50 will not show more than 50 characters)
      ellipsis_char = '...', -- when popup menu exceed maxwidth, the truncated part would show ellipsis_char instead (must define maxwidth first)

      -- The function below will be called before any actual modifications from lspkind
      -- so that you can provide more controls on popup customization. (See [#30](https://github.com/onsails/lspkind-nvim/pull/30))
      before = function (entry, vim_item)
        return vim_item
      end
    })
  }
}

-- local lspconfig = require'lspconfig'
-- lspconfig.ccls.setup {
--     init_options = {
--         compilationDatabaseDirectory = "build";
--         index = {
--             threads = 0;
--         };
--         clang = {
--             excludeArgs = { "-frounding-math" };
--         };
--     }
-- }

lsp.setup()