set relativenumber
set number
set autoindent
set clipboard+=unnamed  " Use system clipboard
set termguicolors
set cursorline
set ts=4 sw=4
"gets rid of --INSERT-- useful bc of lighline"
set noshowmode
set mouse=a
"splits"
set splitright
set splitbelow

call plug#begin()
"file explorer"
Plug 'preservim/nerdtree'
"status line"
Plug 'itchyny/lightline.vim'
"color themes"
Plug 'gilgigilgil/anderson.vim'
Plug 'sainnhe/sonokai'
"automatic parentheses"
Plug 'jiangmiao/auto-pairs'
"syntax highlighting"
Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
"shortcut to comment multiple lines"
Plug 'numToStr/Comment.nvim'


Plug 'neovim/nvim-lspconfig'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-buffer'
Plug 'hrsh7th/cmp-path'
Plug 'hrsh7th/cmp-cmdline'
Plug 'hrsh7th/nvim-cmp'

" For vsnip users.
Plug 'hrsh7th/cmp-vsnip'
Plug 'hrsh7th/vim-vsnip'

call plug#end()

let $NVIM_TUI_ENABLE_TRUE_COLOR=1

" Start NERDTree fullscreen if no file specified, otherwise open in split
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | execute 'NERDTree' | only | endif
autocmd VimEnter * if argc() > 0 || exists("s:std_in") | NERDTree | wincmd p | endif
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif

nnoremap <leader>n :NERDTreeFocus<CR>
nnoremap <C-t> :NERDTreeToggle<CR>
let g:NERDTreeGitStatusWithFlags = 1
"let g:WebDevIconsUnicodeDecorateFolderNodes = 1
"let g:NERDTreeGitStatusNodeColorization = 1
"let g:NERDTreeColorMapCustom = {
    "\ "Staged"    : "#0ee375",
    "\ "Modified"  : "#d9bf91",
    "\ "Renamed"   : "#51C9FC",
    "\ "Untracked" : "#FCE77C",
    "\ "Unmerged"  : "#FC51E6",
    "\ "Dirty"     : "#FFBD61",
    "\ "Clean"     : "#87939A",
    "\ "Ignored"   : "#808080"
    "\ }

let g:NERDTreeIgnore = ['^node_modules$']

let g:lightline = {
      \ 'colorscheme': 'wombat',
      \ }

let g:sonokai_style = 'shusia'
let g:sonokai_better_performance = 1
colorscheme sonokai

lua << EOF
require'nvim-treesitter.configs'.setup {
  -- Install parsers for languages you use
  ensure_installed = { "c", "cpp", "python", "lua", "vim", "go", "html", "css", "javascript", "ocaml"},

  -- Install all maintained parsers
  -- ensure_installed = "all",

  -- Syntax highlighting
  highlight = {
    enable = true,
    additional_vim_regex_highlighting = false,
  },

  -- Indentation based on treesitter (experimental)
  indent = {
    enable = true
  },

  -- Incremental selection based on the syntax tree
  incremental_selection = {
    enable = true,
    keymaps = {
      init_selection = "gnn",
      node_incremental = "grn",
      scope_incremental = "grc",
      node_decremental = "grm",
    },
  }
}

require('Comment').setup()
EOF


lua <<EOF
  -- Set up nvim-cmp.
  local cmp = require'cmp'

  cmp.setup({
    snippet = {
      -- REQUIRED - you must specify a snippet engine
      expand = function(args)
        vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
        -- require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
        -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
        -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
        -- vim.snippet.expand(args.body) -- For native neovim snippets (Neovim v0.10+)

        -- For `mini.snippets` users:
        -- local insert = MiniSnippets.config.expand.insert or MiniSnippets.default_insert
        -- insert({ body = args.body }) -- Insert at cursor
        -- cmp.resubscribe({ "TextChangedI", "TextChangedP" })
        -- require("cmp.config").set_onetime({ sources = {} })
      end,
    },
    window = {
      -- completion = cmp.config.window.bordered(),
      -- documentation = cmp.config.window.bordered(),
    },
    mapping = cmp.mapping.preset.insert({
      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
      ['<C-f>'] = cmp.mapping.scroll_docs(4),
      ['<C-Space>'] = cmp.mapping.complete(),
      ['<C-e>'] = cmp.mapping.abort(),
      ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
    }),
    sources = cmp.config.sources({
      { name = 'nvim_lsp' },
      { name = 'vsnip' }, -- For vsnip users.
      -- { name = 'luasnip' }, -- For luasnip users.
      -- { name = 'ultisnips' }, -- For ultisnips users.
      -- { name = 'snippy' }, -- For snippy users.
    }, {
      { name = 'buffer' },
    })
  })

  -- To use git you need to install the plugin petertriho/cmp-git and uncomment lines below
  -- Set configuration for specific filetype.
  --[[ cmp.setup.filetype('gitcommit', {
    sources = cmp.config.sources({
      { name = 'git' },
    }, {
      { name = 'buffer' },
    })
 })
 require("cmp_git").setup() ]]--

  -- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
  cmp.setup.cmdline({ '/', '?' }, {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
      { name = 'buffer' }
    }
  })

  -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
  cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources({
      { name = 'path' }
    }, {
      { name = 'cmdline' }
    }),
    matching = { disallow_symbol_nonprefix_matching = false }
  })

  -- Set up lspconfig.
  local capabilities = require('cmp_nvim_lsp').default_capabilities()
  -- Replace <YOUR_LSP_SERVER> with each lsp server you've enabled.
  vim.lsp.config('<YOUR_LSP_SERVER>', {
    capabilities = capabilities
  })
  vim.lsp.enable('<YOUR_LSP_SERVER>')
EOF