#!/usr/bin/env lua

function path_join(...)
  return table.concat(vim.iter({ ... }):flatten():totable(), '/')
end

-- Source the VIMRC before doing any neovim lua stuffs
local vimrcpath = path_join { vim.api.nvim_eval [[stdpath('config')]], 'vimrc' }

vim.cmd {cmd='source', args={vimrcpath}}


-- Lsp servers
local lspconfig = require('lspconfig')
lspconfig.clangd.setup {filetypes = {'c', 'cc', 'cpp', 'h', 'hpp', 'cxx'}}
--lspconfig.futhark_lsp.setup {}
----lspconfig.rust_analyzer.setup {}
--local def_opts = { noremap = true, silent = true, }
--lspconfig.hls.setup{
--  filetypes = { 'haskell', 'lhaskell', 'cabal' },
--}
-- Lsp options
vim.api.nvim_create_autocmd('LspAttach', {
  group = vim.api.nvim_create_augroup('UserLspConfig', {}),
  callback = function(ev)
    -- enable omnifunc
    vim.bo[ev.buf].omnifunc = 'v:lua.vim.lsp.omnifunc'

    -- buffer-local mappings
    local opts = { buffer = ev.buf, noremap = true, silent = true }
    vim.keymap.set('i', '<C-Space>', vim.lsp.omnifunc, opts)
    vim.keymap.set('n', 'K',  vim.lsp.buf.hover, opts)
    vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
    vim.keymap.set('n', 'gd', vim.lsp.buf.definition, opts)
    vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
  end,
})

vim.keymap.set('t', '<A-h>', "<C-\\><C-N><C-w>h", nil)
vim.keymap.set('t', '<A-j>', "<C-\\><C-N><C-w>j", nil)
vim.keymap.set('t', '<A-k>', "<C-\\><C-N><C-w>k", nil)
vim.keymap.set('t', '<A-l>', "<C-\\><C-N><C-w>l", nil)

local ts = require('telescope.builtin')
vim.keymap.set('n', '<leader>ff', ts.find_files, {})
vim.keymap.set('n', '<leader>gg', ts.live_grep, {})
vim.keymap.set('n', '<leader>gf', ts.git_files, {})
vim.keymap.set('n', '<leader>b', function() ts.buffers({ ignore_curret_buffer = true, sort_lastused = true }) end, {})

vim.keymap.set('n', '<leader>?', "<cmd>!hlint %<cr>", {})