::    Terminal
::
::::  /hook/core/terminal/app
  ::
/?    314                                               ::  need urbit 314
/-    term-line, kyev
::
::::  structures
  ::
|%                                                      ::
++  axle  $:  %1                                        ::
              hiz=(map path term-line)                  ::
          ==                                            ::
++  gilt                                                ::
  $%  [%term-line p=term-line]                          ::
      [%hymn p=manx]                                    ::
      [%json p=json]                                    ::
  ==                                                    ::
++  gift                                                ::
  $%  [%rush gilt]                                      ::
      [%rust gilt]                                      ::
      [%mean p=ares]                                    ::
      [%nice ~]                                         ::
      [%veer p=@ta q=path r=@t]                         ::
      [%vega p=path]                                    ::
  ==                                                    ::
++  hapt  ,[p=ship q=path]                              ::
++  move  ,[p=bone q=(mold note gift)]                  ::
++  note                                                ::
  $%  $:  %g                                            ::
  $%  [%cide p=span]                                    ::
      [%show p=hapt q=ship r=path]                      ::
      [%sire p=term q=span]                             ::
      [%mess p=hapt q=ship r=[?(%txt %kyev) vase]]      ::
  ==  ==  ==                                            ::
++  sign                                                ::
  $%  $:  %g                                            ::
  $%  [%gone p=hapt]                                    ::
      [%mean p=ares]                                    ::
      [%nice ~]                                         ::
      [%rust p=%term-line q=term-line]                  ::
      [%rush p=%term-line q=term-line]                  ::
      [%veer p=@ta q=path r=@t]                         ::
      [%vega p=path]                                    ::
  ==  ==  ==
--
::
::::  libs
  ::
|%
++  encode
  |=  [a=term b=path]  ^-  span
  (rap 3 a (turn b |=(c=span (cat 3 '_' c))))
::
++  decode  |=(a=span `[p=term q=path]`(rash a (most cab sym)))
--
!:
::::  program
  ::
|_  [hid=hide axle]
++  page
  |=  pax=path
  ^-  manx
  ;html
    ;head
      ;title: Hi
      ;script(src "/gen/main/lib/urb.js");
      ;script(src "//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js");
      ;script(src "//cdnjs.cloudflare.com/ajax/libs/mousetrap/1.4.6/mousetrap.js");
      ;script: urb.appl = "{(trip app.hid)}"
      ;script: urb.term = \{pax: "{(spud pax)}"}
      ;script(src "//use.typekit.net/fkv0sjk.js");
      ;script:'try{Typekit.load();}catch(e){}'
      ;script:'''
              jpok = function(a,b){
                var dat = {pax:urb.term.pax, act:{}}
                dat.act[a] = b
                urb.send({data:dat})
              }
              '''
      ;style:'''
             html {
               font-size: 14px;
             }
             body {
               margin: 2rem;
               line-height: 1.4rem;
             }
             body,
             span,
             pre,
             textarea,
             input {
               font-family: 'source-code-pro', monospace;
               font-size: 1rem;
               background-color: #000;
               color: #fff;
             }
             button {
               border: none;
               font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
               font-weight: 600;
               font-size: .8rem;
               text-transform: uppercase;
               letter-spacing: 1px;
               color: #000;
               background-color: #fff;
               padding: 1rem;
             }
             #prom-cont {
               display: block;
               position:relative;
             }
             textarea,
             #prom-size {
               min-height: 24px;
               box-sizing: border-box;
               overflow: hidden;
               width: 100%;
             }
             textarea {
               height: 100%;
               border: 0;
               outline: none;
               position: absolute;
               resize: none;
             }
             #prom-size {
               visibility: hidden; 
               white-space: pre-wrap;
               word-wrap: break-word;
               overflow-wrap: break-word;
             }
             '''
    ==
    ;body
      ;pre#cont;
      ;span#prem:">"
      ;div#prom-cont
        ;textarea.mousetrap#prom(wrap "off"); 
        ;div#prom-size;
      ==
      ;br;
      ;script:'''
              var prom, prom_size, hist, 
                  hind, size, focus, pos, pax
              
              $(function() {
                prom = $("#prom")
                prom_size = $("#prom-size")
                
                hist = []
                hind = 0
                
                var keys = ['l', 'x', 'r']
                for (i in keys) (function(k){
                  Mousetrap.bind('ctrl+' + k, function(){
                    jpok('cmd', k)
                  })
                })(keys[i])
                
                prom.keydown(function(e){
                  switch(e.which){  
                    default: return true
                      break;
                    case 13:  // %retn
                      if(e.shiftKey) return true
                      v = prom.val().replace(/\xa0/g, ' ')
                      cont.textContent += '\n' + prem.textContent + '\n' + v
                      
                      jpok('line', v)
                      hist.unshift(v)
                      prom.val('')
                      return false
                      break;
                    case 38:  // %up
                      if(hind == hist.length) return true
                      if(pos().top === false) return true
                      prom.val([hist[hind], hist[hind] = prom.val()][0])
                      size()
                      hind++
                      return false
                      break;
                    case 40:  // %down
                      if(hind == 0) return true
                      if(pos().bot === false) return true
                      size()
                      hind--
                      prom.val([hist[hind], hist[hind] = prom.val()][0])
                      return false
                  }
                })

                focus = function() { $(prom).focus(); }
                $('body').on('click', focus)
                focus()

                size = function() {
                  prom_size.html(prom.val()+"<br />")
                }
                size()
                prom.on('input propertychange', size)

                pos = function() {
                  v = prom.val()
                  _top = v.slice(0,prom[0].selectionStart).indexOf("\n") === -1
                  _bot = v.slice(prom[0].selectionStart).indexOf("\n") === -1
                  return {top:_top,bot:_bot}
                }

                pax = '/lines'
                if(urb.term.pax != "/") pax += urb.term.pax
                urb.subscribe({path: pax}, function(e, dat){
                  if(dat.data.ok) return;
                  hist = dat.data.history
                  hind = 0
                  cont.textContent = dat.data.lines.join('\n')
                  window.scrollTo(0,document.body.scrollHeight)
                  prem.textContent = dat.data.prompt + '> '
                })
              });
              '''
    ==
  ==
::
++  peer
  |=  [ost=bone you=ship pax=path]
  ^-  [(list move) _+>]
  ?~  pax
    $(pax /term)
  ?+  -.pax  !!
      %lines
    :_  +>.$  
    :_  ~
    (jell ost t.pax)
      %term
    =+  tel=(fall (~(get by hiz) t.pax) *term-line)
    =^  mof  r.tel
      =+  aut=%shell
      ?:  (~(has by cub.hid) (encode aut t.pax))
        [~ r.tel]
      :_  :_(r.tel leaf/"+ {(trip aut)}")
      :_  [ost %pass hi/mar/[t.pax] %g %sire [aut (encode aut t.pax)]]~
      :^  ost  %pass  hi/in/[t.pax]
      :+  %g  %show
      [[our.hid [(encode aut t.pax) imp.hid]] you /out]
    =.  hiz  (~(put by hiz) t.pax tel)
    :_  +>.$
    [[ost %give %rust %hymn (page t.pax)] mof]
  ==
::
++  poke-json
  |=  [ost=bone you=ship jon=json]
  ^-  [(list move) _+>]
  ::~&  tem-poke/jon
  =+  ^-  [pax=path jof=$%([%line p=span] [%res p=span] [%cmd p=char])]
      %-  need
      %.  jon  =>  jo
      %^  ot
        pax/(su ;~(pfix fas (more fas sym)))
        act/(of line/so res/so cmd/so ~)
      ~
  |-
  =+  tel=(fall (~(get by hiz) pax) *term-line)
  ?-    -.jof
      %res
    =^  mof  r.tel
      ?.  (~(has by cub.hid) (encode p.jof pax))
        [~ r.tel]
      :_  :_(r.tel leaf/"- {(trip p.jof)}")
      [ost %pass hi/mar/pax %g %cide (encode p.jof pax)]~
    ::~&  poke-sire/[jof cub.hid]
    =.  r.tel  :_(r.tel leaf/"+ {(trip p.jof)}")
    =.  hiz  (~(put by hiz) pax tel)
    :_  +>.^$
    %+  welp  mof
    :^    [ost %give %nice ~]
        :^  ost  %pass  hi/in/[pax]
        :^  %g  %show  [our.hid (encode p.jof pax) imp.hid]
        :-  you  /out
      [ost %pass hi/mar/pax %g %sire [p.jof (encode p.jof pax)]]
    (spam pax)
  ::
      %line
    =.  r.tel  :_(r.tel leaf/"{(trip p.tel)}> {(trip p.jof)}")
    =.  hiz  (~(put by hiz) pax tel)
    ?:  =('\\' (end 3 1 p.jof))
      $(jof [%cmd (rsh 3 1 p.jof)])
    :_  +>.^$
    (send ost you pax %txt !>(p.jof))
      %cmd
    ?+  p.jof  :_(+>.^$ (send ost you pax %kyev !>(`kyev`[[%ctrl ~ ~] p.jof])))
      %r  $(jof [%res 'shell'])
    ==
  ==
++  send
  |=  [ost=bone you=ship pax=path mez=[?(%txt %kyev) vase]]
  %+  murn  (~(tap by cub.hid))
  |=  [p=span q=term]
  ?.  =(pax q:(decode p))  ~
  %-  some  ^-  move
  [ost %pass [%txt p pax] %g %mess [our.hid p imp.hid] you mez]
::
++  jell
  |=  [a=bone b=path]
  [a %give %rust %json (tel-to-jon (fall (~(get by hiz) b) *term-line))]
::
++  spam
  |=  pax=path
  ::~&  tem-spam/(~(run by hiz) |=(term-line p))
  %+  murn
    (~(tap by sup.hid))
  |=  [ost=bone @ paf=path]
  ?.  =([%lines pax] paf)  ~
  (some (jell ost pax))
::
++  pour
  |=  [ost=bone pax=path sih=*]
  ^-  [(list move) _+>]
  =+  sih=((hard sign) sih)
  ?:  ?=(%veer +<.sih)                                  ::  vomit
    [[ost %give +.sih]~ +>.$]
  ?:  ?=(%vega +<.sih)                                  ::  vomit
    [[ost %give +.sih]~ +>.$]
  =*  paf  |2.pax
  ?:  ?=([%hi %in *] pax)
    ?+    &2.sih  !!
        %nice  `+>.$
        ?(%rust %rush)
      =+  tol=(fall (~(get by hiz) paf) *term-line)
      =.  tol  ?^  q.q.sih                              ::  XX prompt hack
                 [p.tol (weld q.q.sih q.tol) (weld r.q.sih r.tol)]
               [p.q.sih (weld q.q.sih q.tol) (weld r.q.sih r.tol)]
      =.  hiz  (~(put by hiz) paf tol)
      [(spam paf) +>.$]
    ==
  ?:  ?=(%gone &2.sih)
    `+>.$
  =+  tel=(fall (~(get by hiz) paf) *term-line)
  =+  old=tel
  =.  r.tel
    ?.  ?=(%mean &2.sih)  r.tel
    %-  welp  :_  r.tel
    =-  (turn - |=(a=tank rose/[~ "! " ~]^[a]~))
    ^-  (list tank)
    ?~  p.sih  ~
    (welp q.u.p.sih leaf/(trip p.u.p.sih) ~)
  =.  hiz  (~(put by hiz) paf tel)
  :_  +>.$
  :-  [ost %give +.sih]
  ?:(=(old tel) ~ (spam paf))
::
++  tel-to-jon  
  |=  tel=term-line
  %-  jobe
  :~  [%prompt %s p.tel]
      [%history %a (turn q.tel |=(a=cord [%s a]))]
      :+  %lines  %a
      %-  turn  :_  jape
      ^-  wall  %-  zing  
      ^-  (list wall)
      %-  flop
      (turn r.tel (cury wash 0 80))
  ==
--