" some things do not work perfectly yet
" I have to take a look at the bindings
" MOSTLY, it works
" but startup takes ages (>1s)

" one more thing needs to be done for clever coc linting/fixing:
" create a file called coc-settings.json in nvim config dir with the
" following content:
"
"{
"  // Require .prettierrc
"  "prettier.requireConfig": true,
"  // Tslint on save
"  "tslint.enable": true,
"  "tslint.autoFixOnSave": true,
"  // Run prettier (and others)
"  "coc.preferences.formatOnSaveFiletypes": [
"    "css",
"    "markdown",
"    "Markdown",
"    "javascript",
"    "javascriptreact",
"    "typescript",
"    "typescriptreact"
"  ]
"}

Plug 'neoclide/coc.nvim', {'do': { -> coc#util#install()}, 'on': [], 'for': []}
Plug 'neoclide/coc-snippets', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-tsserver', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-prettier', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-eslint', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-tslint', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-html', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-css', {'do': 'yarn install --frozen-lockfile'}
" Plug 'neoclide/coc-highlight', {'do': 'yarn install --frozen-lockfile'} " color highlighting
Plug 'neoclide/coc-json', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-yaml', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-rls', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-git', {'do': 'yarn install --frozen-lockfile'}
Plug 'fannheyward/coc-rust-analyzer', {'do': 'yarn install --frozen-lockfile'}
Plug 'fannheyward/coc-markdownlint', {'do': 'yarn install --frozen-lockfile'}
Plug 'fannheyward/coc-texlab', {'do': 'yarn install --frozen-lockfile'}
Plug 'iamcco/coc-vimlsp', {'do': 'yarn install --frozen-lockfile'}

" lazy loading since they require a lot of startup time
augroup load_ide_features
  autocmd!
  autocmd InsertEnter * call plug#load('coc.nvim')
                     \| autocmd! load_ide_features
augroup end

" https://github.com/neoclide/coc.nvim#example-vim-configuration
inoremap <silent><expr> <c-space> coc#refresh()

" gd - go to definition of word under cursor
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)

" gi - go to implementation
nmap <silent> gi <Plug>(coc-implementation)

" gr - find references
nmap <silent> gr <Plug>(coc-references)

" gh - get hint on whatever's under the cursor
nnoremap <silent> K :call <SID>show_documentation()<CR>
nnoremap <silent> gh :call <SID>show_documentation()<CR>

function! s:show_documentation()
  if &filetype == 'vim'
    execute 'h '.expand('<cword>')
  else
    call CocAction('doHover')
  endif
endfunction

" " Highlight symbol under cursor on CursorHold
" autocmd CursorHold * silent call CocActionAsync('highlight')

nnoremap <silent> <leader>co  :<C-u>CocList outline<cr>
nnoremap <silent> <leader>cs  :<C-u>CocList -I symbols<cr>

" List errors
nnoremap <silent> <leader>cl  :<C-u>CocList locationlist<cr>

" list commands available in tsserver (and others)
nnoremap <silent> <leader>cc  :<C-u>CocList commands<cr>

" restart when tsserver gets wonky
nnoremap <silent> <leader>cR  :<C-u>CocRestart<CR>

" view all errors
nnoremap <silent> <leader>cl  :<C-u>CocList locationlist<CR>

" manage extensions
nnoremap <silent> <leader>cx  :<C-u>CocList extensions<cr>

" rename the current word in the cursor
nmap <leader>cr  <Plug>(coc-rename)
nmap <leader>cf  <Plug>(coc-format-selected)
vmap <leader>cf  <Plug>(coc-format-selected)

" run code actions
vmap <leader>ca  <Plug>(coc-codeaction-selected)
nmap <leader>ca  <Plug>(coc-codeaction-selected)