"This is free and unencumbered software released into the public domain.
"
"Anyone is free to copy, modify, publish, use, compile, sell, or
"distribute this software, either in source code form or as a compiled
"binary, for any purpose, commercial or non-commercial, and by any
"means.

"In jurisdictions that recognize copyright laws, the author or authors
"of this software dedicate any and all copyright interest in the
"software to the public domain. We make this dedication for the benefit
"of the public at large and to the detriment of our heirs and
"successors. We intend this dedication to be an overt act of
"relinquishment in perpetuity of all present and future rights to this
"software under copyright law.

"THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
"EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
"MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
"IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
"OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
"ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
"OTHER DEALINGS IN THE SOFTWARE.
"
"For more information, please refer to <https://unlicense.org>
"

set number
set relativenumber
set tabstop=4
set shiftwidth=4
set smarttab
set expandtab
set hlsearch
set incsearch
set write

set encoding=utf-8
set fileencoding=utf-8
set nocp
set undofile

set background=dark
set termguicolors
set t_Co=256
set t_AB=^[[48;5;%dm
set t_AF=^[[38;5;%dm

" Russian spell check
map <F2> :setlocal spell spelllang=ru_yo,en_us<CR>
map <F3> :set nospell<CR>

syntax on
call plug#begin('~/.config/nvim/plugins')

" functional plugins
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
Plug 'mbbill/undotree'
Plug 'ellisonleao/glow.nvim'
let g:glow_border = "rounded"
Plug 'nvim-lua/plenary.nvim'
Plug 'sindrets/diffview.nvim'
Plug 'mhinz/vim-startify'
let g:startify_bookmarks = ['~/.config/nvim/init.vim']
let g:startify_custom_header = ""
Plug 'andweeb/presence.nvim'
" General options
let g:presence_auto_update         = 1
let g:presence_neovim_image_text   = "My favorite IDE"
let g:presence_main_image          = "neovim"
let g:presence_client_id           = "793271441293967371"
let g:presence_log_level           = "error"
let g:presence_debounce_timeout    = 10
let g:presence_enable_line_number  = 0
let g:presence_blacklist           = []
let g:presence_buttons             = 1

" Rich Presence text options
let g:presence_editing_text        = "Editing %s"
let g:presence_file_explorer_text  = "Browsing %s"
let g:presence_git_commit_text     = "Committing changes"
let g:presence_plugin_manager_text = "Managing plugins"
let g:presence_reading_text        = "Reading %s"
let g:presence_workspace_text      = "Working on %s"
let g:presence_line_number_text    = "Line %s out of %s"


" Graphic plugins
Plug 'vim-airline/vim-airline'
Plug 'ryanoasis/vim-devicons'
let g:airline_powerline_fonts = 1
let g:Powerline_symbols='unicode'
Plug 'bfrg/vim-cpp-modern'
Plug 'ayu-theme/ayu-vim'
Plug 'vim-airline/vim-airline-themes'
Plug 'kyazdani42/nvim-web-devicons'
Plug 'powerman/vim-plugin-ruscmd'

" lsp plugins
Plug 'neovim/nvim-lspconfig' " Collection of configurations for built-in LSP client
Plug 'hrsh7th/nvim-cmp' " Autocompletion plugin
Plug 'hrsh7th/cmp-nvim-lsp' " LSP source for nvim-cmp
Plug 'saadparwaiz1/cmp_luasnip' " Snippets source for nvim-cmp
Plug 'L3MON4D3/LuaSnip' " Snippets plugin
Plug 'onsails/lspkind-nvim' "Icons in autocomplete menu
Plug 'windwp/nvim-autopairs' " Autopairs
Plug 'lervag/vimtex'
let g:tex_flavor='latex'
let g:vimtex_syntax_conceal = {
          \ 'accents': 0,
          \ 'cites': 0,
          \ 'fancy': 0,
          \ 'greek': 0,
          \ 'math_bounds': 0,
          \ 'math_delimiters': 0,
          \ 'math_fracs': 0,
          \ 'math_super_sub': 0,
          \ 'math_symbols': 0,
          \ 'sections': 0,
          \ 'styles': 0,
          \}
let g:vimtex_quickfix_mode=0

" formats plugins
Plug 'Chiel92/vim-autoformat'
Plug 'yggdroot/indentline'
Plug 'RIDERIUS/vim-cpplint'
autocmd FileType cpp nmap <buffer> <C-e> :call Cpplint()<CR>
Plug 'numToStr/Comment.nvim'
Plug 'luochen1990/rainbow'
let g:rainbow_active = 1 "set to 0 if you want to enable it later via :RainbowToggle
Plug 'preservim/tagbar'
nmap <F6> :TagbarToggle<CR>

call plug#end()

map  <C-n> :NERDTreeToggle<CR>

" off up down left right
"noremap <Up> <nop>
"noremap <Down> <nop>
"noremap <Left> <nop>
"noremap <Right> <nop>

nnoremap <Left> :echoe "Use h"<CR>
nnoremap <Right> :echoe "Use l"<CR>
nnoremap <Up> :echoe "Use k"<CR>
nnoremap <Down> :echoe "Use j"<CR>

imap jj <Esc>

set colorcolumn=120

"for fix bug about cursor in nvim
"set guicursor=

" turn off search highlight
nnoremap ,<space> :nohlsearch<CR>

"colors themes
let ayucolor="dark"
colorscheme ayu
let g:airline_theme='ayu_dark'

"undotree
nnoremap <F5> :UndotreeToggle<CR>

" Enable highlighting of C++11 attributes
let g:cpp_attributes_highlight = 1
" Highlight struct/class member variables (affects both C and C++ files)
let g:cpp_member_highlight = 1
let g:indentLine_char_list = ['|']
map <F4> :Autoformat<CR>
let g:formatters_python = ['autopep8']
let g:formatters_cpp = ['clangformat']
let g:formatdef_my_clangformat = '"-style=Google"'
let g:cpplint_cmd_options = '"--counting=detailed"'

" For gdb in nvim
packadd termdebug
let g:termdebug_wide=1
tnoremap <Esc> <C-\><C-n>

" numToStr/Comment.nvim
lua << EOF
require('Comment').setup()
EOF

lua << EOF
local nvim_lsp = require('lspconfig')

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
  local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
  local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end

  -- Mappings.
  local opts = { noremap=true, silent=true }

  -- See `:help vim.lsp.*` for documentation on any of the below functions
  buf_set_keymap('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
  buf_set_keymap('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
  buf_set_keymap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
  buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
  buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
  buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
  buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
  buf_set_keymap('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
  buf_set_keymap('n', '<space>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
  buf_set_keymap('n', '<space>e', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
  buf_set_keymap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<CR>', opts)
  buf_set_keymap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)
  buf_set_keymap('n', '<space>q', '<cmd>lua vim.diagnostic.setloclist()<CR>', opts)
  buf_set_keymap('n', '<space>f', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)

end

-- Add additional capabilities supported by nvim-cmp
local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)

-- Use a loop to conveniently call 'setup' on multiple servers and
-- map buffer local keybindings when the language server attaches
local servers = { 'clangd', 'pylsp', 'texlab', 'cmake' }
for _, lsp in ipairs(servers) do
  nvim_lsp[lsp].setup {
    on_attach = on_attach,
    flags = {
      debounce_text_changes = 150,
    }
  }
end

require'lspconfig'.clangd.setup{
    cmd = {"clangd", "--completion-style=detailed"},
}

-- luasnip setup
local luasnip = require 'luasnip'

local kind_icons = {
  Text = "",
  Method = "",
  Function = "",
  Constructor = "",
  Field = "",
  Variable = "",
  Class = "ﴯ",
  Interface = "",
  Module = "",
  Property = "ﰠ",
  Unit = "",
  Value = "",
  Enum = "",
  Keyword = "",
  Snippet = "",
  Color = "",
  File = "",
  Reference = "",
  Folder = "",
  EnumMember = "",
  Constant = "",
  Struct = "",
  Event = "",
  Operator = "",
  TypeParameter = ""
}

-- Autopairs
require('nvim-autopairs').setup{}
local disable_filetype = { "TelescopePrompt" }
local disable_in_macro = false  -- disable when recording or executing a macro
local disable_in_visualblock = false -- disable when insert after visual block mode
local ignored_next_char = string.gsub([[ [%w%%%'%[%"%.] ]],"%s+", "")
local enable_moveright = true
local enable_afterquote = true  -- add bracket pairs after quote
local enable_check_bracket_line = true  --- check bracket in same line
local check_ts = false
local map_bs = true  -- map the <BS> key
local map_c_h = false  -- Map the <C-h> key to delete a pair
local map_c_w = false -- map <c-w> to delete a pair if possible


-- nvim-cmp setup
local cmp = require 'cmp'
cmp.setup {
  completion = {
    autocomplete = false
  },
  snippet = {
    expand = function(args)
      require('luasnip').lsp_expand(args.body)
    end,
  },
  mapping = {
    ['<C-p>'] = cmp.mapping.select_prev_item(),
    ['<C-n>'] = cmp.mapping.select_next_item(),
    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
    ['<C-f>'] = cmp.mapping.scroll_docs(4),
    ['<C-Space>'] = cmp.mapping.complete(),
    ['<C-e>'] = cmp.mapping.close(),
    ['<CR>'] = cmp.mapping.confirm {
      behavior = cmp.ConfirmBehavior.Replace,
      select = true,
    },
    ['<Tab>'] = function(fallback)
      if cmp.visible() then
        cmp.select_next_item()
      elseif luasnip.expand_or_jumpable() then
        luasnip.expand_or_jump()
      else
        fallback()
      end
    end,
    ['<S-Tab>'] = function(fallback)
      if cmp.visible() then
        cmp.select_prev_item()
      elseif luasnip.jumpable(-1) then
        luasnip.jump(-1)
      else
        fallback()
      end
    end,
  },
  sources = {
    { name = 'nvim_lsp' },
    { name = 'luasnip' },
  },
  formatting = {
    format = function(entry, vim_item)
      -- Kind icons
      vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind) -- This concatonates the icons with the name of the item kind
      -- Source
      vim_item.menu = ({
        buffer = "[Buffer]",
        nvim_lsp = "[LSP]",
        luasnip = "[LuaSnip]",
        nvim_lua = "[Lua]",
        latex_symbols = "[LaTeX]",
      })[entry.source.name]
      return vim_item
    end
  },
}
EOF