" Statusline

function NormalHighlight()
    hi StatusMode ctermbg=148 ctermfg=22 term=bold cterm=bold
    hi StatusLeft ctermbg=240 ctermfg=231 term=none cterm=none
    hi StatusMiddle ctermbg=236 ctermfg=247 term=none cterm=none
    hi StatusRight1 ctermbg=252 ctermfg=241 term=none cterm=none
    hi StatusRight2 ctermbg=240 ctermfg=250 term=none cterm=none
endfunction
function InsertHighlight()
    hi StatusMode ctermbg=231 ctermfg=23 term=bold cterm=bold
    hi StatusLeft ctermbg=31 ctermfg=231 term=none cterm=none
    hi StatusMiddle ctermbg=24 ctermfg=117 term=none cterm=none
    hi StatusRight1 ctermbg=117 ctermfg=23 term=none cterm=none
    hi StatusRight2 ctermbg=31 ctermfg=117 term=none cterm=none
endfunction
function VisualHighlight()
    hi StatusMode ctermbg=208 ctermfg=88 term=bold cterm=bold
    hi StatusLeft ctermbg=240 ctermfg=231 term=none cterm=none
    hi StatusMiddle ctermbg=236 ctermfg=247 term=none cterm=none
    hi StatusRight1 ctermbg=252 ctermfg=241 term=none cterm=none
    hi StatusRight2 ctermbg=240 ctermfg=250 term=none cterm=none
endfunction
function ReplaceHighlight()
    hi StatusMode ctermbg=160 ctermfg=231 term=bold cterm=bold
    hi StatusLeft ctermbg=240 ctermfg=231 term=none cterm=none
    hi StatusMiddle ctermbg=236 ctermfg=247 term=none cterm=none
    hi StatusRight1 ctermbg=252 ctermfg=241 term=none cterm=none
    hi StatusRight2 ctermbg=240 ctermfg=250 term=none cterm=none
endfunction
hi StatusWarning ctermbg=136 ctermfg=235 term=none cterm=none
hi InactiveStatusLeft ctermbg=235 ctermfg=240 term=none cterm=none
hi InactiveStatusMiddle ctermbg=233 ctermfg=240 term=none cterm=none
hi InactiveStatusRight1 ctermbg=241 ctermfg=235 term=none cterm=none
hi InactiveStatusRight2 ctermbg=235 ctermfg=240 term=none cterm=none

function HighlightStatusline(mode)
    if a:mode == 'n'
        call NormalHighlight()
    elseif a:mode == 'i'
        call InsertHighlight()
    elseif a:mode == 'R'
        call ReplaceHighlight()
    elseif a:mode == 'v' || a:mode == 'V' || a:mode == ''
        call VisualHighlight()
    endif
    return ""
endfunction

call NormalHighlight()

function StatusMode()
    return mode() == 'n' ? 'NORMAL' :
\       mode() == 'i' ? 'INSERT' :
\       mode() == 'R' ? 'REPLACE' :
\       mode() == 'v' ? 'VISUAL' :
\       mode() == 'V' ? 'V-LINE' :
\       mode() == '' ? 'V-BLOCK' :
\       mode()
endfunction

function StatusGit()
    let symbols = ['+', '~', '-']
    let hunks = GitGutterGetHunkSummary()
    let ret = []
    for i in [0, 1, 2]
        if hunks[i] > 0
            call add(ret, symbols[i] . hunks[i])
        endif
    endfor
    let git = join(ret, ' ') . ' ⎇ ' . fugitive#head()
    return fugitive#head() != '' && winwidth('.') > 70 ? git : ''
endfunction

function ActiveStatusline()
    return expand('%:t') == 'ControlP' ? '%#StatusLeft# '.g:StatusCtrlP_prev.' %#StatusMode#'.g:StatusCtrlP_item.' %#StatusLeft# '.g:StatusCtrlP_next.' %#StatusMiddle# regex: '.g:StatusCtrlP_regex :
\       expand('%:t') == '__Gundo__' ? '%#StatusMode# Gundo %#StatusMiddle#' :
\       expand('%:t') == '__Gundo_Preview__' ? '%#StatusMode# Preview %#StatusMiddle#' :
\       expand('%:t') == '[calendar]' ? '%#StatusMode# Calendar %#StatusMiddle#' :
\   '%#StatusMode# %{StatusMode()} '
\   .'%#StatusLeft# %w%q%h%r%<%{substitute(fnamemodify(expand(''%''), '':~:.''), ''/'', '' / '', ''g'')}%m '
\   .'%#StatusMiddle# %{StatusGit()}'
\   .'%='
\   .'%{&filetype} | %{&fileencoding} | %{&fileformat} '
\   .'%#StatusRight2# %p%% '
\   .'%#StatusRight1# %l:%c '
\   .'%{HighlightStatusline(mode())}'
\   .'%#StatusWarning#%{substitute(SyntasticStatuslineFlag(), ''[\[\]]'', '' '', ''g'')}'
endfunction

function InactiveStatusline(name)
    let tail=fnamemodify(a:name, ':t')
    return tail == '__Gundo__' ? '%#InactiveStatusLeft# Gundo ' :
\       tail == '__Gundo_Preview__' ? '%#InactiveStatusLeft# Preview ' :
\       tail == '[calendar]' ? '%#InactiveStatusLeft# Calendar ' :
\   '%#StatusLeft# %w%q%h%r%<%{substitute(fnamemodify(expand(''%''), '':~:.''), ''/'', '' / '', ''g'')}%m '
\   .'%#InactiveStatusMiddle#'
\   .'%='
\   .'%#InactiveStatusRight2# %p%% '
\   .'%#InactiveStatusRight1# %l:%c '
endfunction

let g:ctrlp_status_func = {
  \ 'main': 'CtrlPStatusFunc_1',
  \ 'prog': 'CtrlPStatusFunc_2',
  \ }

function! CtrlPStatusFunc_1(focus, byfname, regex, prev, item, next, marked)
  let g:StatusCtrlP_regex = a:regex
  let g:StatusCtrlP_prev = a:prev
  let g:StatusCtrlP_item = a:item
  let g:StatusCtrlP_next = a:next
  return ActiveStatusline()
endfunction

function! CtrlPStatusFunc_2(str)
  return InactiveStatusline()
endfunction

function UpdateStatusline()
    let w = winnr()
    for n in range(1, winnr('$'))
        let f = getwinvar(n, 'netrw_prvfile')
        let s = winnr('$') == 1 ? [ActiveStatusline()] : [ActiveStatusline(), InactiveStatusline(f)]
        call setwinvar(n, '&statusline', s[n!=w])
        call setwinvar(n, 'lightline', n!=w)
    endfor
endfunction

autocmd WinEnter,BufWinEnter * call UpdateStatusline()