let g:mapleader = "\<Space>"
let g:maplocalleader = ','

set termguicolors
syntax on


set hidden


" Always show the signcolumn
if has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif


call plug#begin(stdpath('data') . '/plugged')

Plug 'neovim/nvim-lspconfig'

Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'} 

Plug 'windwp/nvim-autopairs'

Plug 'terrortylor/nvim-comment'

Plug 'kyazdani42/nvim-tree.lua'

Plug 'glepnir/dashboard-nvim'

Plug 'hoob3rt/lualine.nvim'

" One Dark Pro
Plug 'joshdick/onedark.vim'

" Plug 'liuchengxu/vim-which-key'

" TODO: Configure this
Plug 'mfussenegger/nvim-dap'

" Autocomplete
Plug 'hrsh7th/nvim-compe'
Plug 'hrsh7th/vim-vsnip'
Plug 'hrsh7th/vim-vsnip-integ'

" Telescope Config
Plug 'nvim-lua/popup.nvim'
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim'

" Barbar Config
Plug 'kyazdani42/nvim-web-devicons'
Plug 'romgrk/barbar.nvim'

call plug#end()

" --Telescope Keybinds--
nnoremap <leader>ff <cmd>lua require('telescope.builtin').find_files()<cr>
nnoremap <leader>fg <cmd>lua require('telescope.builtin').live_grep()<cr>
nnoremap <leader>fb <cmd>lua require('telescope.builtin').buffers()<cr>
nnoremap <leader>fh <cmd>lua require('telescope.builtin').help_tags()<cr>


" Compe Keybinds
inoremap <silent><expr> <C-Space> compe#complete()
inoremap <silent><expr> <CR>      compe#confirm('<CR>')
inoremap <silent><expr> <C-e>     compe#close('<C-e>')
inoremap <silent><expr> <C-f>     compe#scroll({ 'delta': +4 })
inoremap <silent><expr> <C-d>     compe#scroll({ 'delta': -4 })

" Which Key Keybinds
" nnoremap <silent> <leader>      :<c-u>WhichKey '<Space>'<CR>
" nnoremap <silent> <localleader> :<c-u>WhichKey  ','<CR>

" Nvim Tree Keybinds
let g:nvim_tree_ignore = [ '.git', 'node_modules', '.cache' ] "empty by default
let g:nvim_tree_gitignore = 1 "0 by default
let g:nvim_tree_auto_open = 1 "0 by default, opens the tree when typing `vim $DIR` or `vim`
let g:nvim_tree_auto_close = 1 "0 by default, closes the tree when it's the last window
let g:nvim_tree_auto_ignore_ft = [ 'startify', 'dashboard' ] "empty by default, don't auto open tree on specific filetypes.
let g:nvim_tree_quit_on_open = 1 "0 by default, closes the tree when you open a file
let g:nvim_tree_follow = 1 "0 by default, this option allows the cursor to be updated when entering a buffer
let g:nvim_tree_indent_markers = 1 "0 by default, this option shows indent markers when folders are open
let g:nvim_tree_git_hl = 1 "0 by default, will enable file highlight for git attributes (can be used without the icons).
let g:nvim_tree_root_folder_modifier = ':~' "This is the default. See :help filename-modifiers for more options
let g:nvim_tree_tab_open = 1 "0 by default, will open the tree when entering a new tab and the tree was previously open
let g:nvim_tree_width_allow_resize  = 1 "0 by default, will not resize the tree when opening a file
let g:nvim_tree_add_trailing = 1 "0 by default, append a trailing slash to folder names
let g:nvim_tree_group_empty = 1 " 0 by default, compact folders that only contain a single folder into one node in the file tree
let g:nvim_tree_lsp_diagnostics = 1 "0 by default, will show lsp diagnostics in the signcolumn. See :help nvim_tree_lsp_diagnostics
let g:nvim_tree_special_files = [ 'README.md', 'Makefile', 'MAKEFILE' ] " List of filenames that gets highlighted with NvimTreeSpecialFile
let g:nvim_tree_show_icons = {
    \ 'git': 1,
    \ 'folders': 1,
    \ 'files': 1,
    \ }
"If 0, do not show the icons for one of 'git' 'folder' and 'files'
"1 by default, notice that if 'files' is 1, it will only display
"if nvim-web-devicons is installed and on your runtimepath

" default will show icon by default if no icon is provided
" default shows no icon by default
let g:nvim_tree_icons = {
    \ 'default': '',
    \ 'symlink': '',
    \ 'git': {
    \   'unstaged': "✗",
    \   'staged': "✓",
    \   'unmerged': "",
    \   'renamed': "➜",
    \   'untracked': "★",
    \   'deleted': "",
    \   'ignored': "◌"
    \   },
    \ 'folder': {
    \   'default': "",
    \   'open': "",
    \   'empty': "",
    \   'empty_open': "",
    \   'symlink': "",
    \   'symlink_open': "",
    \   },
    \   'lsp': {
    \     'hint': "",
    \     'info': "",
    \     'warning': "",
    \     'error': "",
    \   }
    \ }

nnoremap <C-n> :NvimTreeToggle<CR>
nnoremap <leader>r :NvimTreeRefresh<CR>
nnoremap <leader>n :NvimTreeFindFile<CR>
" NvimTreeOpen and NvimTreeClose are also available if you need them


" a list of groups can be found at `:help nvim_tree_highlight`
highlight NvimTreeFolderIcon guibg=blue

colorscheme onedark

lua << EOF

-- NVIM 0.5 LSP Setup

local nvim_lsp = require'lspconfig'
nvim_lsp.pyright.setup{}
nvim_lsp.rust_analyzer.setup{}

-- Tree Sitter Config

require'nvim-treesitter.configs'.setup {
	highlight = { enable = true },
	indent = { enable = true },
	autotag = { enable = true },
}

-- Telescope Defaults
require'telescope'.setup {
	defaults = {
		find_command = {'rg', '--no-heading', '--with-filename', '--line-number', '--column', '--smart-case'},
		prompt_position = "bottom",
		prompt_prefix = " ",
		border = {},
		borderchars = {'─', '│', '─', '│', '╭', '╮', '╯', '╰'},
		color_devicons = true,
		use_less = true,
		set_env = {['COLORTERM'] = 'truecolor'},
	},
}

-- Barbar Keybinds
vim.api.nvim_set_keymap('n', '<TAB>', ':BufferNext<CR>', { noremap = true, silent = true })
vim.api.nvim_set_keymap('n', '<S-TAB>', ':BufferPrevious<CR>', { noremap = true, silent = true })
vim.api.nvim_set_keymap('n', '<S-x>', ':BufferClose<CR>', { noremap = true, silent = true })

-- Autopairs setup
require'nvim-autopairs'.setup()

-- Comments
require'nvim_comment'.setup()

-- Autocomplete
vim.o.completeopt = "menuone,noselect"

require'compe'.setup {
  enabled = true;
  autocomplete = true;
  debug = false;
  min_length = 1;
  preselect = 'enable';
  throttle_time = 80;
  source_timeout = 200;
  incomplete_delay = 400;
  max_abbr_width = 100;
  max_kind_width = 100;
  max_menu_width = 100;
  documentation = true;

  source = {
    path = true;
    buffer = true;
    calc = true;
    nvim_lsp = true;
    nvim_lua = true;
    vsnip = true;
    ultisnips = true;
  };
}

local t = function(str)
  return vim.api.nvim_replace_termcodes(str, true, true, true)
end

local check_back_space = function()
    local col = vim.fn.col('.') - 1
    if col == 0 or vim.fn.getline('.'):sub(col, col):match('%s') then
        return true
    else
        return false
    end
end

-- Use (s-)tab to:
--- move to prev/next item in completion menuone
--- jump to prev/next snippet's placeholder
_G.tab_complete = function()
  if vim.fn.pumvisible() == 1 then
    return t "<C-n>"
  elseif vim.fn.call("vsnip#available", {1}) == 1 then
    return t "<Plug>(vsnip-expand-or-jump)"
  elseif check_back_space() then
    return t "<Tab>"
  else
    return vim.fn['compe#complete']()
  end
end
_G.s_tab_complete = function()
  if vim.fn.pumvisible() == 1 then
    return t "<C-p>"
  elseif vim.fn.call("vsnip#jumpable", {-1}) == 1 then
    return t "<Plug>(vsnip-jump-prev)"
  else
    return t "<S-Tab>"
  end
end

vim.api.nvim_set_keymap("i", "<Tab>", "v:lua.tab_complete()", {expr = true})
vim.api.nvim_set_keymap("s", "<Tab>", "v:lua.tab_complete()", {expr = true})
vim.api.nvim_set_keymap("i", "<S-Tab>", "v:lua.s_tab_complete()", {expr = true})
vim.api.nvim_set_keymap("s", "<S-Tab>", "v:lua.s_tab_complete()", {expr = true})


-- lualine Config
require'lualine'.setup {
	options = {
		theme = "onedark"
	},
}

-- Dashboard config
vim.g.dashboard_default_executive = 'telescope'
vim.g.dashboard_custom_section = {
    a = {description = {'  Find File          '}, command = 'Telescope find_files'},
    b = {description = {'  Recently Used Files'}, command = 'Telescope oldfiles'},
    c = {description = {'  Load Last Session  '}, command = 'SessionLoad'},
    d = {description = {'  Find Word          '}, command = 'Telescope live_grep'},
    e = {description = {'  Settings           '}, command = ':e ~/.config/nvim/init.vim'}
    -- e = {description = {'  Marks              '}, command = 'Telescope marks'}
}

EOF